Indonesia Conference Directory

Corresponding Author
Bandiyah Sri Aprillia

Institutions
Telkom University

Abstract
There is a potential of collision hazard on the railroad crossing then the crossing guard will give the signal and call the control station to stop the train that passes by, but there is so many railroad crossing with the passive level crossing which have not guards. In this study focus on the collision detection system comprised single board computer, LORA communication module, and Image processing machine with HOG & SVM method embedded within it as the cheap and effective solution to tackle such a problem. From Prototype testing with a 20% confidence threshold, the outcome has 89% true rate for the classification and 53% successful rate of the communication on urban city test condition.

Keywords
railroad crossing, HOG and SVM, Hazard Detection

Topic
Electrical Engineering

Link: https://ifory.id/abstract/UqRrEPyBd4ab

Corresponding Author
Ekananda Sulistyo Putra

Institutions
Electrical Engineering Departement, State Polytechnic of Malang. Jl. Soekarno-Hatta No. 9, Malang 65141, Indonesia.

Abstract
Electrical energy is an important component in an industry, that is needed by electrical equipment / machines that exist in the industry. Currently, the majority of electrical energy is produced from fossils. Therefore, efficiency application of electricity loads in industries need to be logged and analyzed. To make electricity load efficiency possible, it can be done by monitoring and logging real-time electricity loads in the industry. So that, the electrical power consumed can be analyzed. In this paper, a 3-phase electricity monitoring system is builded for Low Voltage Power Distribution (LVDP) that can be monitored anytime and anywhere via internet for the needs of electricity quality analysis. Monitoring parameters are voltage, current, real power, apparent power, power factor, IHD voltage and current, and voltage and current THD for each phase. That variables send to database and display on the web. Error reading of voltage sensor is found on average error 0.00254% compared to multimeter. For current sensor, the average error is 0.0074%. On the user interface, all functions are running well, so that, it can be utilized for the needs of electrical analysis, which means the power consumed and the malconsumed can be known.

Keywords
Data Logging; Monitoring; Power Quality; LVDP

Topic
Electrical Engineering

Link: https://ifory.id/abstract/RUPp9ybdkXwE

Corresponding Author
HYREIL ANUAR KASDIRIN

Institutions
Universiti Teknikal Malaysia Melaka

Abstract
Nowadays, a single-link flexible robot arm is used extensively in a lot of industries. This is because it can manage duties that are hard or repetitive work in varieties of production tasks. Therefore, in managing to operate like a human hand, this flexible manipulator system is needed to be extremely precise. Hence, this paper proposed an optimal fuzzy logic controller (FLC) by improving the accuracy and repeatability of a proportional-integral-derivative-like fuzzy logic controller (PID-FLC) for a single-link flexible manipulator system. In this strategy, the proposed controller is optimized by an invasive weed optimization (IWO) algorithm. To simulate such system, a PID-type fuzzy logic controller will be designed in the MATLAB Simulink environment. In the control strategy, the PID acts as scaling gain for the FLC in order to normalize inputs and output and to damp oscillations of the system. The performance of PID-FLC is tuned and optimized by IWO algorithm by discovering the best value of membership function for fuzzy system. The effectiveness of the proposed strategy is analyzed and evaluated by comparing the performance of PID-FLC with PD-like FLC and PID-like FLC without tuning mechanism from IWO algorithm. The comparative studies are validated in terms of rise time, overshoot and undershoot, settling time and steady-state error of the single-link manipulator movement. As a result, the proposed control strategy only needs only less than 30 number of iterations with less time-consuming and lower cost function in order to generate the optimum performance. Furthermore, PID-FLC shows better performance by improving 11% of lower overshoot at first signal, 27.9% of smaller undershoot at second signal and 0.8% lower overshoot at third signal compared to PD-FLC with IWO. PID-FLC also achieved better overall performance than PID-FLC without IWO in terms of rise time, settling time, overshoot and undershoot and steady-state error. However, there are some future works to be done which are comparing the performance of IWO with other biological-based algorithm and apply this optimized control system to the real model of robot arm.

Keywords
Fuzzy Logic Controller, Invasive Weed Optimization, Single-link Flexible Manipulator

Topic
Electrical Engineering

Link: https://ifory.id/abstract/V3KWxpB9AyTb

Corresponding Author
Bagaskara Kara

Institutions
Electrical Enginering Departement, Politeknik Negeri Semarang, Jl. Prof. H. Soedarto S.H.,
Tembalang, Semarang 50275, indonesia
*bagaskara565.bb[at]gmail.com

Abstract
Determination of effective and efficient waste transportation routes and appropriate systems in optimizing waste transportation costs. In Tembalang District there is still a pile of garbage in the landfill, this is because the transportation of waste is less effective and efficient. This study aims to determine the waste transportation system from the waste point at the garbage dumb then sent to the landfill using genetic algorithm methods, which is known as a concept to determine the best route for garbage transportation vehicles. The results of this study are to obtain a model of waste transportation system that can be applied in an effective and efficient route collection application. The results obtained in Tembalang sub-district with the distance of the route is 17.90 km with a travel time of 49 minutes. Compared to the standard used by the Sanitation Department for Landscaping, the route is 18.20 km, the travel time is 1.15 hours. The collection distance is short and determines the minimum number of vehicles needed for garbage collection to become node waste in the city of Semarang.

Keywords
garbage dumb; garbage transportation vehicles; generic algorithm; optimizing; distance of the route

Topic
Electrical Engineering

Link: https://ifory.id/abstract/xkW2UvuBTcQM

Corresponding Author
Moch Sukardjo

Institutions
Universitas Negeri Jakarta
Jln. Rawamangun Muka Raya, Jakarta Timur, 13220

Abstract
Computer Assisted Instruction (CAI) for computer programming was rare. In order to improve student-s competence, general design of CAI should be optimized. Optimized design produced proper CAI learning media targeted for Vocational High School (SMK). The product implemented in certain SMK to verify effectiveness and efficiency of learning media in the field. The research used Research and Design method. Research population was SMK-s students.

Keywords
CAI, programming language, student-s competence

Topic
Electrical Engineering

Link: https://ifory.id/abstract/7edb9NtraEnH

Corresponding Author
ilham pakaya

Institutions
State Polytechnic Of Malang

Abstract
The instability of energy resources and correseponding cost of the system are the main two problems for designing the hybrid solar-wind power generation systems. The configuration of the system must have a high reliability on the power supply avaibility but with a minimum cost. The purpose of this paper is to find the most optimum or balanced configuration between technical reliability and total annual cost for the PV module number, the wind turbine number and the battery number. Apropriate strategy of load management is needed by adjusting the potensial energy resource to the load power demand. Loss of Power Supply Probability (LPSP) is a method to determine the ratio of power generation unavailability by the system configuration which used as technical analysis. Annualized Cost of System (ACS) is a method to determine the total annual cost the project lifetime which used as economical analysis. The result from the simulation showed that Particle Swarm Optimization (PSO) algorithm can be an alternative method to find the best configuration with a low number of LPSP and ACS. Since, PSO has a better efficacy and faster time to find global optimum than other algorithm.

Keywords
Hybrid Generation; Optimization; LPSP; ACS; Particle Swarm Optimization (PSO)

Topic
Electrical Engineering

Link: https://ifory.id/abstract/YjqphUdTk2Pc

Corresponding Author
Dwi Riana Aryani

Institutions
Universitas Indonesia

Abstract
Faulted Inter Bus Transformer (IBT) can cause power system instability. Therefore, it will be isolated to prevent the spreading of disturbance. IBT at the Paiton Substation which supplies Paiton – Grati and Bali Subsystem is discussed in this paper. The event discussed is 2 of 3 IBTs are out of work so that only one left. So, load shedding of Bali Subsystem is required to avoid further disturbance. However, after it is applied, the voltage at the Bali Subsystem will increase beyond the allowed rating because some substations in Bali Subsystem have capacitor banks to increase voltage during normal operation. Therefore, further action is required by releasing some capacitor banks of several substations that have the highest rated voltage until the voltage in all substations is within the permitted rating. Finally, it is shown that the proposed method can restore system stability by evaluating the rated capacity at IBT Paiton and rated voltage at Bali Subsystem.

Keywords
capacitor shedding, Inter-bus Transformers (IBT), load shedding

Topic
Electrical Engineering

Link: https://ifory.id/abstract/EBLAvecaj27b

Corresponding Author
Ibnu Malik Al Hamas

Institutions
Universitas Pendidikan Indonesia

Abstract
LED lights have been widely applied to street lighting in every country, but not a few still using conventional lamps. This paper presents the results of evaluating efficiency and photometric performance from street lighting lamps. The level of illumination and uniformity ratio will be calculated to make a quantitative comparison between LED lights and conventional lamps according to Indonesian National Standards. conditions in the field will be simulated using DIALux software. the results of this paper are to find the most effective and efficient type of lamps and will be useful for the Public Works Agency in making decision on the selection of the new lamps technology for street lighting, determining the type of lamp depends on needs, light quality, and energy saving.

Keywords
Street Lighting; Energy Saving; HPS MH and LEDs; Photometric Performance;

Topic
Electrical Engineering

Link: https://ifory.id/abstract/Ac8Mxu9TdqEh

Corresponding Author
Massus Subekti

Institutions
Electrical Engineering Study Program, Engineering Faculty, State University of Jakarta

Abstract
This research for performance analysis of ocean water power plant to get design optimization based on research scenarios. The method used is experiment, by conducting a prototype analysis of the initial calculations to be included in the modeling simulation. through research scenarios to get the most optimal prototype performance. The results showed that (1) the greater the pontoon volume used, the greater the pontoon force produced, the pontoon force was not affected by the size of the pump diameter. (2) the larger the diameter of the pump used, the greater the discharge of water produced, the water discharge is not affected by the small volume of the pontoon, (3) the magnitude of the lift system to seawater is not affected by the size of the pump diameter but the size of the pontoon volume, the greater the pontoon volume used, the greater the lift power, (4) the greater the pontoon volume used, the turbine power The result will be even greater with the diameter of the pump, the larger the diameter of the pump used, the greater the turbine power produced. From the results of the study, it can be concluded that the optimal size uses 6 pontoons and 12 inch pump diameters.

Keywords
Analysis, Ocean Waves, Renewable Energy, Leading Regions, Outermost Areas, Underdeveloped

Topic
Electrical Engineering

Link: https://ifory.id/abstract/yjGFMrba9PkN

Corresponding Author
Ika Setyowati

Institutions
a) Jurusan Teknik Elektro, Fakultas Teknik Universitas Tidar.
Jl. Kapten Suparman No. 39 Magelang. Indonesia
ikasetyowati[at]untidar.ac.id

b) Jurusan Teknik Elektro, Fakultas Teknik Universitas Tidar.
Jl. Kapten Suparman No. 39 Magelang. Indonesia
nopi_jte[at]untidar.ac.id

c) Jurusan Teknik Elektro, Fakultas Teknik Universitas Tidar.
Jl. Kapten Suparman No. 39 Magelang. Indonesia
johan[at]untidar.ac.id

d) Jurusan Agroteknologi, Fakultas Pertanian Universitas Tidar.
Jl. Kapten Suparman No. 39 Magelang. Indonesia
errypurnomo[at]untidar.ac.id

Abstract
Smart Irrigation as one of the implementations of the Internet of Things (IoT) in agriculture aims to control and monitor water supply in accordance to crop needs. The control system is designed using the Arduino Nano platform and the soil moisture sensor YL 69. The accuracy of the sensor is very influential on the performance of the control system, so that sensor calibration is done before it is applied to smart irrigation. The calibration method used in this research is the Grafimetric Water Content method. The media used in calibration is a mixture of soil and sand as much as 5% of the soil. Water weighed 4,71% from soil weight added to increase soil moisture level in callibration process. Based on the calibration results obtained from the sensor reading 201 shows 18.31% of soil moisture in dry soil. With nine times of water addition to soil obtained soil saturation point to water with sensor reading 633 which shows result 61,91% of soil moisture. The experimental results show the polynomial curve of order 3.

Keywords
Internet Of Things, Smart Irrigation, Soil Moisture Sensor, Grafimetric Water Content.

Topic
Electrical Engineering

Link: https://ifory.id/abstract/hXbm4Zqr8jMK

Corresponding Author
Dede Nasrullah

Institutions
Computer Engineering Lecturer, Engineering Faculty, Muhammadiyah of University Surabaya
*aswinrosadi[at]ft.um-surabaya.ac.id

Abstract
Indonesia is an agrarian country, and most of the populations livelihood is in the agricultural sector. One of the results of agricultural commodities is chilli. The chili is a vegetable commodity that cannot be separated from the daily needs of the community. In the process of planting chili plants, water requirements greatly affect the growth of chili plants. However, along it was with the occurrence of delays in watering, especially in the dry or hot season. Watering chili plants based on soil moisture was one way to treat chili plants properly. Using the arduino uno microcontroller was as the main controller for the automatic chilli watering program. The program received input from the sensor soil moisture. The soil moistures were a sensor that worked to determine soil moisture, so when the soil was under certain humidity conditions it can water the chilli plants automatically.

Keywords
Automatic watering plants, soil moisture, arduino uno, chili

Topic
Electrical Engineering

Link: https://ifory.id/abstract/ex67vt4QdNFq

Corresponding Author
Ade Rukmana

Institutions
a) Electrical Engineering Departement, Universitas Garut
Jl. Raya Samarang 52A, Garut, Indonesia
*) ade77rukmana[at]gmail.com

Abstract
Collisions between train and roadway user in a level crossing in rural area are the most railway accidents. A warning device for the level crossing is required to avoid the accident between roadway users and the train in the level crossing. The system shall independent from the existing railway system so that no disruption on the traffic of the train. This paper present a level crossing devices system based on ultrasonic sensors and wireless communication. Master control will display the result of detection using buzzer alarm, warning lamp, and train passage direction. Train passage warning with direction help the roadway user to get better awareness of incoming train and eliminate assumption of train passage direction. Especially in double track railway in rural area, in case dual train enter the level crossing from left and right direction, the roadway users sometimes only aware on the first train passage and ignoring the second train and lead to the accident

Keywords
level crossing, ultrasonic, wireless, train passage, rural area

Topic
Electrical Engineering

Link: https://ifory.id/abstract/HPR2M8F4mKhY

Corresponding Author
Gunadi Tjahjono

Institutions
Department of Electrical Engineering Education:
University of Nusa Cendana Kupang, Indonesia

Abstract
The purpose of this study is to produce: (1) The average voltage in squirrel-cage rotor type of three-phase induction motor load. (2) The average current in squirrel-cage rotor type of three-phase induction motor load. (3) The average apparent power in squirrel-cage rotor type of three-phase induction motor load. (4) The average reactive power in squirrel-cage rotor type of three-phase induction motor load. (5) The best capacitor value for saving reactive power in squirrel-cage rotor type of three-phase induction motor load. The research method used is a quantitative description approach by applying measurement methods the Laboratory of Department of Electrical Engineering Education, Nusa Cendana University, Kupang. The study population was the entire squirrel-cage rotor type of three-phase induction motor controller using the star to delta method. The sample is a number of measurements of voltage, current, and power on a three-phase induction motor using the star to delta method.. The conclusions of the research are: (1) The average phase voltage to neutral, to run a squirrel-cage rotor type of three-phase induction motor obtained a value of 244.5 [V]. (2) The average IR current for star-connection load without capacitor obtained a value of 0.1667 [A]. The average IS current for star-connection load without capacitor obtained a value of 0.1575 [A]. The average IT current for star-connection load without capacitor obtained a value of 0.147 [A]. (3) The average IR current for delta-connection load without capacitor obtained a value of 0.58 [A]. The average IS current for delta-connection load without capacitor obtained a value of 0.518 [A]. The average IT current for delta-connection load without capacitor obtained a value of 0.466 [A]. (4) The average IR current for delta-connection load with the capacitor of 11.57 [µF] obtained a value of 0.0845 [A]. The average IS current for delta-connection load with the capacitor of 11.57 µF obtained a value of 0.1577 [A]. The average IT current for delta-connection load with the capacitor of 11.57[µF] obtained a value of 0.0763 [A]. (5) The average apparent power for star-connection load without capacitor obtained a value of 10.3 [Watt]. The average reactive power for star-connection load without capacitor obtained a value of 58 [VAR]. (6) The average apparent power for delta-connection load without capacitor obtained a value of 24.4 [Watt]. The average reactive power for delta-connection load without capacitor obtained a value of 205 [VAR]. (7) The average apparent power for delta-connection load with the capacitor of 11.57 [µF] obtained a value of 9,9 [Watt]. The average reactive power for delta-connection load with the capacitor of 11.57 [µF] obtained a value of 9,4 [VAR]. (8) Capacitor value 11.57 [µF] is the best value for reactive power savings in squirrel-cage rotor type of three-phase induction motor.

Keywords
Compensation, reactive power, induction motor, squirrel-cage rotor

Topic
Electrical Engineering

Link: https://ifory.id/abstract/Fr9UCNEy3PaQ

Corresponding Author
Irvan Virgian

Institutions
Universitas Pendidikan Indonesia

Abstract
The use of LED technology in street lighting systems can increase energy efficiency and uniformity. This paper presents the results of redesigning street lighting. Redesign process is carried out to conform to lighting standards. The method used in this paper is the photometric approach and for the simulation process using DIALux Evo software. SNI 7391: 2008 is used as a guide in the process of redesigning. Based on simulation results, the use of LEDs is more efficient than the SOX lamp. LED has been chosen because it had good lighting quality, energy efficient, and durable. The street lighting systems that comply with the standards will provide comfort for road users and minimize the occurrence of crime at night.

Keywords
street lighting; photometric computation; LED; energy efficiency; uniformity

Topic
Electrical Engineering

Link: https://ifory.id/abstract/mR4tLTe6Ag93

Corresponding Author
Hasbullah Hasan

Institutions
Universitas Pendidikan Indonesia

Abstract
Today, the development of the electricity system has led to an increase in the reliability and quality in the distribution of electrical energy, especially the neglect of the substation. One of the main equipment in the substation is the Circuit Breaker (CB), the security system needs to be maintained periodically. Maintenance delays will reduce the value of reliability. Based on CB cubicle breakdown data outgoing 20 kilo Volt, it appears that the CB has the highest breakdown time technically in two years. Breakdowns that occur greatly affect the reliability of the CB equipment. In this study, the selection of CB distribution substations will be examined and their reliability analyzed using the Failure Mode and Effect Analysis (FMEA) method. The results obtained from the study are the CB is to determine the reliability value by calculating the normal log distribution. Then also determined the failure obtained through FMEA analysis and pareto diagrams based on the value of the Risk Priority Number is the interuptor tube, moving contact, gear box value, fixed contact, Closing / tripping coil, and 110/220 Volt AC / DC Motor.

Keywords
reliability, circuit breaker, cubicle, FMEA

Topic
Electrical Engineering

Link: https://ifory.id/abstract/UwWr9TMKnzy2

Corresponding Author
Astrie Kusuma Dewi

Institutions
Polytechnic of Energy and Mineral Akamigas
Jalan Gajah Mada No. 38 Cepu, Blora, Jawa Tengah

astriekusumadewi[at]gmail.com

Abstract
In propylene products, there is still a small proportion of propane which still the impurity of the propylene. Therefore, a tool for monitoring is needed while controlling the content of impurities (propane) so that the propane content in propylene is within the permissible tolerance, a maximum of 0.4 vol%. The tool that can be used to analyze the propane content in propylene is the Online Propane Analyzer which works continuously for 24 hours. Need to installation of the Online Propane Analyzer. However, the installed propane analyzer often fails (downtime) caused by the inability of the oven (heater) to maintain the temperatures stability in the column at a temperature of 60 °C, so that the column is unable to separate the propylene components mixed with propane properly. Frequent down time on the analyzer causes the installed propane analyzer to be poor and unreliable. The value of reliability tests with existing data is only 60.51%, under the IEEE 1336-2000 standard. it is important to do a retrofit analyzer to improve the analyzers performance in maintaining the quality of propylene according to the design, to facilitate the operator in monitoring the process and to facilitate technicians in performing preventive maintenance.

Keywords
Online Retrofit, Analyzer, Monitoring

Topic
Electrical Engineering

Link: https://ifory.id/abstract/4xMwpDeJ8nXL

Corresponding Author
Swi Hong Tjan

Institutions
Politeknik Negeri Bandung
Jl. Gegerkalong Hilir, Ds. Ciwaruga Kotak Pos 1234, Bandung 40012, Indonesia

Abstract
Megadata is a proprietary operating system used in PT. KAI microwave communication master SCADA. It has been in operation since 1994. Because of its age, the vendor does not support it. The master mall function while its RTUs (Remote Terminal Unit) that seen within Java island still function. The master is running in proprietary hardware, so the software cannot run outside the system. One option to keep the system running is to reengineer the SCADA master. The first step in this process is to investigate all the information in master SCADA. All the system configurations are stored in the master hard disk, but its file system is unrecognized by DOS, Windows or Linux, and by an open-source forensic software Autopsy. Reverse engineering Megadata file system is done to retrieve the necessary files. Its steps are: study literature, duplicate Megadata hard disk raw data, analyze the partition table, root directory, subdirectory, and data area. After analyzing, the detail file system is revealed. It is a modified ext file system used in Linux.

Keywords
file system; Megadata;reverse engineering

Topic
Electrical Engineering

Link: https://ifory.id/abstract/L3dJGxwHYkAK

Corresponding Author
Novi Gusti Pahiyanti

Institutions
(a) Departement Electrical Engineering, PLN Technical College
Jalan Lingkar Luar Barat Duri Kosambi, Cengkareng, Jakarta barat 11750
novi.gusti[at]sttpln.ac.id
(b) Departement Electrical Engineering, PLN Technical College
Jalan Lingkar LUar Barat Duri Kosambi, Cengkareng, Jakarta Barat 11730

Abstract
Short term electricity load forecasting is a very important factor in the planning and operation of an electric power system. The purpose of electricity load forecasting is that electricity demand and supply can be balanced. The pattern of consumption of different electrical loads at certain intervals at the Harapan Indah Gas Insulated Switchgear (GIS) substation. Making the problem of variations in the electricity load is not homogeneous. Lots of methods are used to produce accurate and precise electrical load forecasting. With the hope that the current load will be distributed precisely and according to the needs of consumers. In this study discusses the short-term electricity load forecasting by the Linear Regression method and the Energy Coefficient where, the two methods are compared to find the value of the percentage of small errors and very good accuracy. Calculations in this study use historical data on electricity loads at PT PLN (Persero) Jakarta Raya Main Distribution Unit in March 2019 on GIS Harapan Indah. The results showed that the average error ratio from Monday to Sunday was 7.92% with an accuracy value of 92.08% for Linear Regression and 10.46% with an accuracy value of 89.54% for the Energy Coefficient

Keywords
Short-term forecasting, linear regression, energy coefficient percentage error

Topic
Electrical Engineering

Link: https://ifory.id/abstract/Gd43uNcET6hf

Corresponding Author
I Made Wiwit Kastawan

Institutions
Department of Energy Conversion Engineering, Politeknik Negeri Bandung
Jl. Gegerkalong Hilir, Bandung Barat, Jawa Barat, Indonesia
E-mail: wiwit.kastawan[at]polban.ac.id, erwin.yusuf[at]gmail.com, afiffadhilah.erg[at]gmail.com

Abstract
This paper presents a detailed description about design of phase shifting transformer to reduce source current harmonic generated by variable speed drive (VSD) units commonly used for controlling speed of hot air blower motors of a stenter machine in textile industry. Nine units of VSD are used in a stenter machine of a selected textile industry that generates source current with relatively high harmonic content. Total harmonic distortion (THD) figure of the source current varies from 43.91% to 50.34%. The source current contains all odd order harmonics except triplen ones. A method proposed to reduce this source current harmonic is by using phase shifting transformer. Two different phase shifting transformer arrangements are possible. The first one is arrangement of three phase shifting transformers. The other one is arrangement of nine phase shifting transformers. Arrangement of three phase shifting transformers uses Yy, Yz1 and Yz2 three-phase winding connection to produce phase shifting of 0, 20 and –20 respectively. Meanwhile, arrangement of nine phase shifting transformers uses one Yy three-phase winding connection with 0 phase shifting, four Yz1 three-phase winding connections with 6.67, 13.34, 20 and 26.67 phase shifting respectively and four Yz2 three-phase winding connections with –6.67, –13.34, –20 and –26.67 phase shifting respectively. Results from simulation using MATHLAB SIMULINK show that harmonic content of the source current reduced significantly. THDs of the source current drop to 1.99% and 1.74% respectively when arrangements of three phase shifting transformers and nine phase shifting transformers are used.

Keywords
current harmonic, phase shifting, three-phase transformer, THD, VSD.

Topic
Electrical Engineering

Link: https://ifory.id/abstract/GUVxEKeaCTfP

Corresponding Author
Dwi Riana Aryani

Institutions
Universitas Indonesia

Abstract
The implementation of photovoltaic (PV) system has been evolving all over the world as the alternative energy sources are getting more required. However, the construction of PV power plant on the ground would need a large space. In regions which are lack of sites for the ground PV installation, a floating PV system is one of the solutions. This study analyses the performance of floating PV in supplying power to loads with a battery as the energy storage in a stand-alone system. The system is simulated using small capacities of PV module, battery, and load, where all components are integrated using a solar charge controller to maintain a safe operation. The performance of floating PV is compared to the ground PV in terms of the output efficiency. One can notice that the floating PV provides better efficiency compared to ground PV as the cell temperature is maintained well.

Keywords
Floating PV, stand-alone system, battery, output efficiency

Topic
Electrical Engineering

Link: https://ifory.id/abstract/uUNJDcRqp9BH

Corresponding Author
Haris Singgih Darmawan

Institutions
a) Department of Electrical and Information Technology Engineering, Faculty of Engineering, Gadjah Mada University
Jalan Grafika 2 Yogyakarta 55281 INDONESIA

Abstract
The problem of small signal stability is one of the main problems in the current power system because the purpose of operating the system is close to the limit. Small signal stability is important because small disturbances in the form of non-dampened electromechanical oscillations have limited the power flow limit in a steady state, so the oscillation will affect the operating system in a security and quality review. The entry of renewable energy in the Sulawesi interconnection system certainly has an impact on system stability and the emergence of electromechanical oscillations. An estimated 75 MW of power will come from the PLTB that will be built in Sidrap and 62.5 MW in Jeneponto. This study aims to analyze small signal stability due to the development of EBT generators on the Sulawesi interconnection system through eigenvalue characteristics and participation factors. The PLTB that will be integrated in the Sulawesi system certainly affects power flow which has an impact on small signal stability. From the above explanation, it is considered necessary to conduct research on the analysis of the stability of small signals before and after the integrated power plant in the Sulawesi electricity system.

Keywords
Small signal stability, Renewable Energy, Eigenvalue.

Topic
Electrical Engineering

Link: https://ifory.id/abstract/PeKUXF6JNy7j

Corresponding Author
Dwi Hadidjaja

Institutions
1,2 Electrical Engineering, Muhammadiyah University Sidoarjo

Abstract
Abstract. By implementing SMS on scheduling bird feed with automation, it makes it easier for poultry farmers to feed birds. Scheduling bird feed can be done continuously to avoid excessive amounts of feed. This application works according to the time set by the user. This application uses a servo motor to open and close the feed valve, the microcontroller system as the main controller, SIM 800L as the information provider in the form of SMS, and RTC as a time scheduling system. In scheduling bird feed can be done per second. There is a GSM shield notification to the user when the system is running. The average provider or GSM is caused by signal factors during the trial, and depending on bad weather or indeed the signal tends to be difficult. Servo motor process with its own open angle between 0°-90° with a delay time of 50 seconds. For the 800L SIM it takes a voltage between 3.8 - 3.9 volts.

Keywords
GSM, Microcontroller, Servo Motor, SIM800L

Topic
Electrical Engineering

Link: https://ifory.id/abstract/yaDBXKNVAWYL

Corresponding Author
Akhmad Ahfas

Institutions
1Electrical Engineering, Muhammadiyah University Sidoarjo

Abstract
Motorbikes are popular of transportation with high usage rates. Safeguarding motorbikes is a necessity for users to provide security. Researchers offer motorcycle safety using sound indicators. The working principle of motorcycle safety offered is after the main key or contact is on position and the Mic sound indicator is blown, amplifier circuit works to drive the relay driver that connects the CDI unit. Motorcycle safety circuit system will live and if there is no blow, motorcycle safety circuit will not function. Research on motorcycle safety circuit can be used with input indicator sound. Components needed include Mic condenser, driver relay circuit, power supply. Measurement of the relay driver circuit and condenser mic aims to find out which circuit can work as planned. The measurement results obtained testing the motorcycle safety circuit with the following explanation: When the sound indicator and driver get a touch simultaneously which gives a signal that the signal from the sound indicator is connected to the amplifier driver, so that the signal is detected, will provide input to the relay (on) and CDI unit when the motorcycle will work. With an indication the LED will turn on.

Keywords
Motorcycle safety circuit system

Topic
Electrical Engineering

Link: https://ifory.id/abstract/pj6KgBD9aFGk

Corresponding Author
Muhammad Rifan

Institutions
Universitas Negeri Jakarta

Abstract
Spatial Artificial Neural Network (ANN) is proposed as a new approach to determine the level of energy consumption in the future in the Palembang region, South Sumatra. Back-propagation is used to train Artificial Neural Networks. Population size, Gross Regional Domestic Product (GRDP), economic growth, Household Energy Consumption spatially per sub-district is used for this estimate. Data for 2012-2016 is used to train Spatial Neural Networks (ANN) and Data for 2017-2018 is used to validate this new approach to electricity demand prediction. The proposed Spatial ANN approach provides relatively good predictions about energy demand in acceptable errors and high accuracy for electricity demand predictions.

Keywords
energy forecasting, spatial, neural network

Topic
Electrical Engineering

Link: https://ifory.id/abstract/uKk9x7j3aXHU

Corresponding Author
Adnan Rafi Al Tahtawi

Institutions
Department of Electrical Engineering, Politeknik Negeri Bandung
Jl. Gegerkalong Hilir Ds. Ciwaruga, Bandung 40012

Abstract
The integration of a wireless network in a closed-loop control system can provide several benefits such as flexibility, installation, and maintenance. However, the presence of time delay in the network system can reduce the control performance. On the other hand, control signal saturation is also the problem that must be overcome in designing a controller. This study aims to design a DC motor speed control by integrating wireless network in its closed-loop system. This concept is known as the Wireless Networked Control System (WNCS). The network parameter used in this study is focused on the time delay. In the controller side, we use a saturation parameter which usually occurs due to limitations of the input signal. The PI-AW controller is used due to having the ability to overcome the saturation of the control signal. The simulation results show that the PI-AW controller can produce the best responses if compared with PI linear and PI saturated with settling time under 1.5 seconds and overshoot less than 8% for three constant values of time delay. The control signal generated also does not exceed the maximum limit of 12 V.

Keywords
WNCS, time delay, saturation, PI-AW controller

Topic
Electrical Engineering

Link: https://ifory.id/abstract/2utfEHX9WRk6

Corresponding Author
Dwi Riana Aryani

Institutions
Universitas Indonesia

Abstract
Loss of 500 kV transmission line of Paiton-Grati 1 & 2 causes voltage instability in surrounding subsystem which may lead to further disturbance in the Jawa-Bali system. Minimization of the voltage instability can be handled by adding Flexible AC Transmission System (FACTS) devices, such as Static Synchronous Compensator (STATCOM) and Static Synchronous Series Compensator (SSSC). STATCOM and SSSC have the capability of dynamically controlling the power flow through a line. This paper aims to compare the performance of both devices to maintain system stability in the case of loss of 500kV transmission line. The performance of these methods is compared through the analysis of the bus voltage, the active power, and the rotor angle. As a result, this paper shows that the implementation of STATCOM is more stable instead of SSSC.

Keywords
FACTS, Instability, SSSC, STATCOM

Topic
Electrical Engineering

Link: https://ifory.id/abstract/bqKT2kPjGMr7

Corresponding Author
Daryanto, M.T. -

Institutions
Electrical Engineering Education Study Program, Faculty of Engineering, Jakarta State University, Jakarta, Indonesia

Abstract
Delivery of electrical power from the power plant to the load center of widespread done through transmission networks with limited capacity. The operation of such an electric power system can cause a stable condition to be disturbed and a worse result is a total blackout. This study aims to investigate the influence of dynamic loads on the electric power system oscillation damping. The behavior of the electric power system after disruption studied to determine the effect of parameter changes the dynamic load of the electric power system oscillation damping. The electric power system model in this study is a dynamic load model and synchronous generator model. Dynamic load models are developed from the Hill model based on load power responses due to voltage changes. The mathematical formula that describes the interaction between voltage and load power is realized by first-order differential equations. While the electric power system model is based on a model developed by Demello, which is a single electric generator connected to an infinite bus. The synchronous machine in this model is obtained from the classical Park model by assuming that (1) the condition is balanced, (2) the stator coil resistance is ignored, (3) the influence of saturation is ignored, (4) the transmission network is assumed to be zero, and (5) the local load is assumed the voltage depends only on the real power. Based on the two models, an overall block diagram is made that illustrates the interaction between dynamic loads and the electric power system. The results showed that there was an increase in the stability of the electric power system with dynamic load feedback and a decrease in the rotor angle and increase in voltage. So that it can be concluded that changes in dynamic load parameters affect the stability of the electric power system.

Keywords
Keywords: damping, oscillation, dynamic load parameters, electrical power system, synchronous generators.

Topic
Electrical Engineering

Link: https://ifory.id/abstract/nc28yPjXFHh3

Corresponding Author
Femy Sanana Sanvia

Institutions
a) Electricity and Energy Management, Department of Electrical Engineering, Faculty of Engineering, University of Indonesia, Depok 16424, Indonesia
*femysanana[at]gmail.com
b) Department of Electrical Engineering, Faculty of Engineering, University of Indonesia, Depok 16424, Indonesia

Abstract
The Industrial and Commercial sectors are the largest electricity energy consumption. Building-s system that used the biggest electrical energy consumption, especially in the Industrial and commercial sectors, are air conditioning systems, lighting systems, and building transportation systems. Energy Saving Performance Contract (ESPC) could be an alternative to support implementation of energy efficiency in the building sector up to 10-30%. This study investigates the application of ESPC in the retrofit of the air conditioning system in Industrial and Commercial building, Chiller. Chiller retrofit can produce electrical energy efficiency of 210 MWh / year or reduce electrical energy consumption by up to 30% with a 5-year payback period investment. This study can be broadened to develop application of ESPC in Indonesia.

Keywords
Energy Saving Performance Contract; Retrofit; Energy Efficiency

Topic
Electrical Engineering

Link: https://ifory.id/abstract/hN6p4yurRLdq

Corresponding Author
Dwi Riana Aryani

Institutions
Department of Electrical Engineering, Faculty of Engineering, Universitas Indonesia

Abstract
Photovoltaic (PV) is known as an intermittent energy source so that the impacts need to be calculated by the developer. In order to ensure the presence of PV does not cause the reliability of the system interrupted, developers are required to perform the stability study before the integration. In this paper, voltage stability study is done by using various PV capacities ranging from 5 MWp to 15 MWp in systems with a capable capacity of 90.79 MW using software ETAP 12.6.0. PV generation is set at the maximum site irradiance where power drop due to weather condition. The analysis shows the system stabilized in less than 50 seconds where the voltage disturbance does not exceed 10% for PV with a capacity of 5 and 10 MWp which is connected to a distribution network. Meanwhile, PV with a capacity of 15 MWp requires load release in order to regain stability.

Keywords
Integration, Lombok, photovoltaic, voltage stability.

Topic
Electrical Engineering

Link: https://ifory.id/abstract/h3MbNZcpVr8u

Corresponding Author
Nuryanto Nuryanto

Institutions
1,2,4 Informatics Engineering, Universitas Muhammadiyah Magelang, Indonesia
3 Industrial Engineering, Universitas Muhammadiyah Magelang, Indonesia
5 Department of Mechanical Engineering, Diponegoro University, Semarang, Indonesia

Abstract
Commonly, wheeled mobile robot is used to pass flat roads and a legged robot is utilized for areas that are bumpy are erratic. KAROT is a mobile robot that has wheels and legs (quadruped) that are designed in automatic transform to wheels mode or legs mode. the problem is how to detect the surface to be passed to determine the robot mode. To solve the problem, this research applies the trigonometry concept to the installation of Infrared (IR) Obstacle sensors. The IR sensor detection path forms the hypotenuse of triangle with fixed length. if the sensor detects an obstacle means the surface in front is not flat then KAROT uses quadruped mode. IR sensor mounted on the left & right side of the robot to detect surfaces and one IR sensor mounted in the middle to detect the area in front can be passed or not. IR Obstacle sensor by applying the trigonometry concept can be used for surface detection with accurate angle installation.

Keywords
Keyword: Mobile robot, wheeled, quadruped, trigonometry, surface detection

Topic
Electrical Engineering

Link: https://ifory.id/abstract/ZyTWzvnN82Qu