Indonesia Conference Directory

Corresponding Author
Dwi Riana Aryani

Institutions
Universitas Indonesia

Abstract
Disturbances which commonly occur in electric power system such as loss of generation may affect the frequency stability. Hence, in order to maintain the stability, a load shedding is carried out by analyzing the reactive power and triggering the circuit breaker through frequency relay. Analysis of the reactive power is used to determine the location of the loads that will be released. The objective of the methodology is to minimize the loss of load while maintaining the frequency stability of the system. Four scenarios are employed in this study in accordance with the quantity of generator trip. As a result, the proposed method is able to minimize the amount of loss of load ranging from 18 MW to 35 MW with the frequency recovery time is less than 30 seconds.

Keywords
power system stability, frequency stability, load shedding, frequency relay, islanding

Topic
Electrical Engineering

Link: https://ifory.id/abstract/fLgAVZ4neHKq

Corresponding Author
Dien Rahmawati

Institutions
School of Electrical Engineering, Telkom University, Jl. Telekomunikasi Terusan Buah Batu, Bandung 40257 , Indonesia
*dienrahmawati[at]telkomuniversity.ac.id

Abstract
The power produced by solar panels is greatly influenced by its position towards sunlight. The more solar panels are perpendicular to the sunlight, the more power is produced. The aim of this research is creating a prototype of the solar panel position control system so that the position between the solar panels against the sun is always perpendicular. The solar panel position control system used in this study is based on image processing. In image processing, the webcam is used to take a shadow image of a bolt measuring 4 cm in diameter and 1 mm placed on a flat plane. Then, the image from the shadow of the bolt is processed to get the angle of view direction of the sun. Furthermore, the angle position is used as input for the solar panel drive motor. Thus, the position of the solar panel can adjust the direction of the incoming sunlight and its position becomes perpendicular to each other. From the results of the research conducted it can be concluded that the prototype can always follow the direction of incoming sunlight with an accuracy rate towards the center point is 95% for X-axis and 96% for Y-axis.

Keywords
control system, position, solar panel, image processing

Topic
Electrical Engineering

Link: https://ifory.id/abstract/HwY8kqgUvcQD

Corresponding Author
Kharisma Bani Adam

Institutions
School of Electrical Engineering
Telkom University
kharismaadam[at]telkomuniversity.ac.id

Abstract
Indonesia is still struggling to attract investors in developing the solar photovoltaic (PV) project. The government issued the first regulation on solar PV, announced in 2016. A revision on the local tariff regulation is conducted to reduce the rapid development of the solar PV investment. The major revision is made to change the contract scheme from a build-operate-own (BOO) to a build-operate-own-transfer (BOOT) scheme. This paper investigates how the new local tariff will drive investors and developers to invest in solar PV. This analysis is conducted to know the effectiveness of the policy and the risk of PV investment in Indonesia. Local tariff policy regulation targets PV developers to invest in the solar PV system areas. In the local tariff policy, each area has its PV energy tariff determined by the government. This research proposes a method for deciding demand by considering population data in selected regions to calculate the maximum PV demand of each area. The Levelized Cost of Energy LCOE is used to calculate the economic viability of the PV projects in selected areas in Indonesia. The results show that more than half of the selected areas are profitable for the PV project. The average profit of the projects of the selected areas is 3.21 cent USD per kWh. Most of the areas that have high PV demand have lower local tariffs. Therefore, these areas may not be profitable for developers. The new regulation also cuts the revenue significantly due to the new scheme contract.

Keywords
Local Tariff Policy, Photovoltaic, Solar Power

Topic
Electrical Engineering

Link: https://ifory.id/abstract/9EQCYmaLbnJp

Corresponding Author
Sapto Nisworo

Institutions
Departement of Electrical Engineering, Tidar University
Kapten S.Parman 39 Magelang 56116 Indonesia
*saptonisworo[at]gmail.com

Abstract
Water is a basic need for living things. The need for water can be obtained by taking ground water using a pump. The pump that is commonly used is a centrifugal pump, driven by electricity with a working frequency of 50 Hz. Pump rotation is directly proportional to frequency and is an obstacle to optimization. Pump rotation will be adjusted by adjusting the working frequency using Adjustable Speed Drives. Given that Adjustable Speed Drives can generate current harmonics caused by front-end rectifiers that tend to draw current in non sinusoidal and non-continuous forms. This paper will present harmonic mitigation on the performance of adjustable speed drives that are applied to water pumps. Based on mitigation, the risk of loss of the power system can be reduced and even eliminated.

Keywords
harmonic, adjustable speed drive, filter hybrid

Topic
Electrical Engineering

Link: https://ifory.id/abstract/HXG7uRfNaQgc

Corresponding Author
Didin Wahyudin

Institutions
Universitas Pendidikan Indonesia

Abstract
The need of practical equipment in the Electrical Engineering Education program is necessary. However, due to some difficulties such as, the pricey of available training kit in the market caused that most student could not get appropriate practical work equipment. One of the important facility is a training kit encouraged student to learn Internet of Things. This study describes the design of the Internet of Thing Training Kit based on ESP-32 (IoTTK32). A set of IoT training module has been designed. Through Research and Development Approach, researcher have constructed low-cost IoT trainer that can be used in induatrial practical work. The results of examination show that produced IoT kit coud be used in formal practical work of industrial automation related to the industrial 4.0 evolution.

Keywords
Internet of things, practical work, industrial automation, low-cost equipment

Topic
Electrical Engineering

Link: https://ifory.id/abstract/86kGMbRxjPzQ

Corresponding Author
Saddani Djulihenanto Djulihenanto

Institutions
State Polytechnic Of Malang

Abstract
One of attractive solution for PV ac-module is flyback-type micro inverter since it has a number of advantages include simple control, stable current injection and potentially low-priced technique. However, the typical flyback-type micro inverter would produce high voltage ripple in the DC-link. As a concequence, a high total harmonic distortion would likely be expected in the system. Therefore, a technique for minimising the total harmonic distortion within standard level is required. Generally, adding capacitor in the DC-link is usually considered as the solution to reduce the voltage ripple. This technique is not a cost-effective solution. Furthermore, the dimension of the inverter package will be bigger to have more space for additional capacitors. This paper proposes a control method to reduce harmonic level for flyback-type micro-inverter using Maximum Power Point Tracker (MPPT). The MPPT technique decribed in this paper used perturb and observe (P&O) method. This method is simple and yet highly efficient. Several experiments have been carried out to examine the effectiveness of the proposed method. The results show that the proposed method can reduce the harmonic level significantly. Moreover, the method can reduce the capacitance used in the DC-link of the flyback inverter.

Keywords
flyback-inverter, total harmonic distortion, perturb & observe, maximum power point tracker

Topic
Electrical Engineering

Link: https://ifory.id/abstract/grGvAWcbtZe9

Corresponding Author
Eni Dwi Wardihani

Institutions
a)Department of Electrical Engineering, Politeknik Negeri Semarang, Semarang 50275
*edwardihani[at]polines.ac.id
b)Department of Electrical Engineering, Politeknik Negeri Semarang, Semarang 50275
c)Department of Electrical Engineering, Politeknik Negeri Semarang, Semarang 50275

Abstract
Disaster Recovery Network (DRN) is important to help facilitating the network to spread information faster and accurate so that the number of victims can be minimized in terms of disaster. Dealing with the down Base Transceiver Station (BTS) has rekindled the interest to overcome. Most prior research about DRN show that the system has already made in UAV but it can just partially serve the devices regarding previous coding of slotted ALOHA usage. Creating UAV DRN which support a massive number of uncoordinatedly transmitting devices is the key. Coded Random Access has become the challenge to recommend the promising coding technique which provides larger devices connection to reach as many as possible devices to serve. The purpose of this study is to identify Coded Random Access performance for uplink communication in UAV DRN, summarize existing studies and give recommendation on UAV DRN with Coded Random Access. This introduces the relevant past researches and embedded with the material on DRN, UAV, and CRA.

Keywords
BTS, CRA, Slotted ALOHA, UAV DRN

Topic
Electrical Engineering

Link: https://ifory.id/abstract/p8PTj7MRJawB

Corresponding Author
Riky Maulana Firdaus

Institutions
(a) Politeknik Negeri Semarang
*ricks.tronix[at]gmail.com

Abstract
Roller brake tester is a kind of vehicle braking system test equipment used to test the amount of brake force for each vehicle axis and braking force efficiency. This study aims to analyze the magnitude of the efficiency of the brake force arising from the vehicle braking action tested on the roller brake tester. The vehicle used for testing is a type of passenger vehicle weighing of about 1300 kg which is tested using a variety of braking actions such as suddenly stop braking, gradually slow braking and intermittently loose press braking. The results of this study indicate that the efficiency of the highest brake force occurs when sudden-braking is applied, while for the lowest brake force efficiency occurs when the loose-press braking is applied.

Keywords
Roller Brake Tester, Brake Force Efficiency, Braking Action

Topic
Electrical Engineering

Link: https://ifory.id/abstract/QCX9g2YR6vzE

Corresponding Author
WIDYA ASTRIYANI

Institutions
a. Department of Electrical Engineering, University of Indonesia
Jalan Salemba Raya, RW.5, Kenari, Senen, Central Jakarta City, Jakarta 10430
*widyaast[at]gmail.com

b. Department of Electrical Engineering, University of Indonesia
Jl. Margonda Raya, Pondok Cina, Beji, Kota Depok, Jawa Barat 16424, Indonesia

Abstract
The commercial sector counts as one of the biggest consumers of electrical energy. Thus, efforts to save electricity in this sector will also influence significant energy efficiency. Some of the electricity loads that can be saved in this sector include air conditioners (AC), lights, lighting, elevators, pumps, and other electrical equipment. Use of air conditioner in commercial sector can be reduced by control management, both in temperature and power control. Direct load control (DLC) is the control system that can adjust the time schedule for temperature setting and power setting. The results of this paper is to see the potential energy reduced and cost reduced from using DLC in commercial sector specifically office building.

Keywords
Direct Load Control, Air Conditioner, Commercial Sector, Energy

Topic
Electrical Engineering

Link: https://ifory.id/abstract/zb6vXnZCrULu

Corresponding Author
Elih Mulyana

Institutions
Universitas Pendidikan Indonesia

Abstract
Transformer is the main equipment in the electric power system that is directly related to the electrical transmission and distribution system. An important part of a power transformer is its insulation system. Along with age and its operation the condition of insulation can be damaged which can lead to failure of surgery. The purpose of this study was to determine the quality conditions of the power transformer insulation. The method in this research is observation and study of literature. While the research location is PT PLN (Persero) TJBT APP Cirebon. Data taken in the form of polarization index and delta tangent test results. After the data is collected, the polarization index and delta tangent are calculated and analyzed. Analysis of the polarization index testing using the primary-ground, secondary-ground, tertiary-ground, primary-secondary, secondary-tertiary and primary-tertiary methods. Whereas tangent delta testing is the relationship between CH, CHL, CL, CT, CHT, and CLT. The results of tests with delta polarization and tangent indexes, that the transformer isolation resistance is still good, and the transformer is feasible to operate.

Keywords
insulation resistance testing, polarization index and tangent delta

Topic
Electrical Engineering

Link: https://ifory.id/abstract/29QBf8WKjhE7

Corresponding Author
TASMA SUCITA

Institutions
Departemen Pendidikan Teknik Elektro
Universitas Pendidikan Indonesia

Abstract
The purpose of this study was to determine the effect of generator installation Distribution of stability on a system of 20 kV distribution with load conditions is considered balanced. The reason for conducting this research is to find out how far DG can maintain stability on each bus. The method used in this study is to compare the results of the simulation of power flow and short circuit interference using ETAP Power System software. The results obtained from the power flow simulation before installation DG voltage drop at the end of the line. While the three phase short circuit fault current before the DG installation at the beginning of the line is x. After installation of DG with an injection of 50% and 90% power DG obtained a voltage drop at the end of the line of y and w. The results of the study show that with the injection of DG can increase the voltage profile on the line. Likewise, the interference current has increased, but it can be overcome by placing the location of the DG from the fault site.

Keywords
Distribution line, Distributed Generation, Stability of Distribution Systems, ETAP Power System

Topic
Electrical Engineering

Link: https://ifory.id/abstract/rJcLQe63WBmz

Corresponding Author
Faiz Husnayain

Institutions
(a) Department of Electrical Engineering, Faculty of Engineering, Universitas Indonesia

(b) Pusat Pengaturan Beban (P2B) PT PLN Persero Gandul

Abstract
In electric power systems, it will started from the generation phase until the distribution phase through transmission lines must take place well. The purpose of study is to analyze the implementation in optimizing the power flow and improving stability in Z Power System. Therefore, it is necessary to have sufficient electricity distribution so that the electricity sent can be as efficient as possible. In the Z electric power system, there are many problems in electric power transmission, namely loading on uneven channels and the threat of extinguishing in the event of a disturbance. Uneven load is caused by differences in impedance on the channel. Blackouts occur because the channel on the Z is a generator evacuation route where the area is crucial if a disturbance occurs. Therefore, a tool is needed to prevent it. One solution to this problem is to use a power electronics device called UPFC. The simulation results show an even distribution on the all transmission lines connected to substation of Generators will be decrease up more than 5% of the normal loading. In addition, the UPFC can also improve stability by compensating for the active power and reactive power needed by the system.

Keywords
Transmission System, Power Stability, FACTS, UPFC

Topic
Electrical Engineering

Link: https://ifory.id/abstract/dKAULXgnWGJ8

Corresponding Author
Agung Yuda Sulaksana

Institutions
Teknik Elektro, FPTK, Universitas Pendidikan Indonesia

Abstract
ABSTRACT Street Lighting (PJU) is lighting designed to support for safety and provide comfort for road users with energy-efficient lamp designs. This paper aims to describe the design results with DIAlux using LED lights, to obtain efficient results and according to SNI: 7391: 2008. The selection of efficient street lighting must take into account the following factors: price factors, loss of loss to conductors, and long life that supports smart lighting. The results showed that public street lighting that had been redesigned with the mesopic method gave results that met SNI: 7391: 2008 and were more efficient.

Keywords
Street lighting, DIALux, LED, efficiency energy

Topic
Electrical Engineering

Link: https://ifory.id/abstract/neucg8ARhEQD

Corresponding Author
Khansa Ratri Haniya

Institutions
Universitas Pendidikan Indonesia
Dr. Setiabudi No. 229, Bandung 40154, Indonesia

Abstract
Each thermal generator has a fuel cost and heat rate that determines the economic aspects of a generator. To minimize the cost of operating the generator unit, optimization can be done using Economic Dispatch, so that the most optimal operating costs are achieved. In this study, the Augmented Lagrange-Hopfield Network (ALHN) method was used, where conventional Lagrange methods were combined with the Hopfield Neural Network method to accelerate the convergence process and obtain more optimal results. The results obtained indicate that the ALHN method can reduce generator unit operating costs with faster computational process than conventional Lagrange methods. Thus, the operating costs of the generation unit can be cut down.

Keywords
Optimization; Economic Dispatch; Augmented Lagrange-Hopfield Network; Hybrid

Topic
Electrical Engineering

Link: https://ifory.id/abstract/LyC4e7pFfxAB

Corresponding Author
Dzaky Satria Rahman Djuanda

Institutions
Faculty of Electrical Engineering, Telkom University
Jl. Telekomunikasi Jl. Terusan Buah Batu No.01, Sukapura, Kec. Dayeuhkolot, Kota Bandung, Jawa Barat 40257, Indonesia

Abstract
A smartphone needs a battery source to work well. During the battery charging process, the state of charge can be increased by up to 100%. One habit in charging batteries is to leave the smartphone connected to the charger all night long. Batteries that are already 100% but still connected to the charger will continue to receive an electric current even though a small value can cause a decrease in battery life and durability. This final project aims to create an automatic battery charging system based on the Android operating system. The result of this system is when the percentage limit that we have set is the same as the percentage of the battery on the smartphone, the system will automatically cut off the incoming current so that the charging process will stop. This system is designed using a microcontroller, Bluetooth module, relay module, Android apps, and smartphone with Android operating system. The tests carried out are the suitability of the apps with the smartphone, the charging and discharging conditions on the system, and automatic battery charging. From the results of tests conducted by the system can cut the current to a value of 0 amperes from the charger manually and automatically controlled through the apps, the apps can be used on smartphones that have Android version 2.1 or higher.

Keywords
Smartphone, State of Charge, Android

Topic
Electrical Engineering

Link: https://ifory.id/abstract/AFtZvVrx9K63

Corresponding Author
Agus Putu Abiyasa

Institutions
Universitas Pendidikan Nasional

Abstract
We report a design for optimum humidity and temperature control system based on a low cost open source Arduino Microcontroller. The system is implemented in a 20 kV high voltage cubicle compartment for Lokomboro Microhydro Power Plant at Sumba, Indonesia. Due to high water vapor, humidity inside the cubicle is very high (>70%) creating plasma arching and destroying the cubicle. By installing blower and heater coupled with humidity and temperature sensors, we manage to prevent the arching by removing the excess water vapor. With automatic control, manual checking has been reduced to twice a year. Furthermore, blower and heater operation time has also been reduced to 14 hours a day. Therefore, the Lokomboro Microhydro Power Plant has operated with minimum maintenance cost and longer cubicle lifetime.

Keywords
Microhydro power plant, Plasma arching, Arduino microcontroller

Topic
Electrical Engineering

Link: https://ifory.id/abstract/hbkeTQq4Udxn

Corresponding Author
Dwi Novianto

Institutions
Universitas Tidar
Jl. Kapten S Parman No. 39 Magelang 56116, Jawa Tengah, Indonesia
*nopi_jte[at]untidar.ac.id

Abstract
Abstract - Majority of agriculture in Indonesia still relies on rainwater for irrigation. In dry season, there are many agricultural lands become unproductive. It decrease farmers income. To solve this problem, Aquaponic Planting System was offered but the system is complicated. It needs adequate oxygen and suitable pH to ensure nitrification process to occur. In nitrification process bacteria convert NH3 to NO3- and NO2. Therefore, a system which controls oxygen and pH levels are needed. For pH calibration, curveting method was used to get accurate measurement. For oxygen calibration, saturated dissolved oxygen water was used. It was obtained by using Potentiometric method. Finally, A Simple Moving Average was used to get stable readings.

Keywords
Calibration; pH, Oxygen; Sensor; Aquaponic

Topic
Electrical Engineering

Link: https://ifory.id/abstract/mnvxNQEpT3q4

Corresponding Author
Putri Wulandari

Institutions
University of Al Azhar Indonesia

Abstract
Renewable Energy Resources are increasing in a few years, this is due to the increasing increase in environmental pollution and fossil fuels which are increasingly depleted. Both bridges and toll roads actually have wind speeds that can be used and used as electricity. But there is a problem to put the power plant on the bridge or the toll road, which is quite limited land, so to install the Horizontal Axis Wind Turbine will be very difficult. Therefore Vertical Axis Wind Turbine is used as an alternative. VAWT is used to create power plants that can use wind from vehicles on toll roads and bridges to make electricity.To be able to take advantage of the wind around the place, Computational Fluid Dynamics (CFD) is needed to optimize the design of the turbine.

Keywords
Ansys, CFD, VAWT, Renewable Energy

Topic
Electrical Engineering

Link: https://ifory.id/abstract/MRy4zT6kCd7A

Corresponding Author
Fadil Muhammad

Institutions
Departement of Electrical Engineering
Universitas Sultan Ageng Tirtayasa
Jl. Jendral Soedirman KM 03. Cilegon - Indonesia
a) fadil.muhammad[at]untirta.ac.id
b) ceri.ahend[at]untirta.ac.id
c) masjudin[at]untirta.ac.id

Abstract
In the 4.0 industrial revolution, technologies are designed to be able to connect to the internet. These technologies should be able to exchange data between them using sensors and others. One of the ways to send it is by the wireless sensor network. However, involving the internet in exchanging data needs security guarantees. Three things must meet in network security, that is confidentiality, integrity, and availability. Cryptography use for the confidentiality of the information that will be sent by the user. In this research will be using the symmetric cryptography for network security on wireless sensor networks. In addition to network security, symmetric cryptography method will be used also consider energy efficiency on a wireless sensor network. Chacha stream cipher as symmetric cryptography will be used as a method of messages encryption. Experiments in this research used NS-3 as a network simulator. Results of the tests show that the purpose method has a computation time of 0.2385 ms and the second fastest after the rabbit cryptographic process. Chacha LR WPAN simulation process has a computation time of 17.6199 ms.

Keywords
Wireless Sensor Network, Cryptography

Topic
Electrical Engineering

Link: https://ifory.id/abstract/Wx6JCD3BHLqR

Corresponding Author
Indah Sulistiyowati

Institutions
Faculty Engineering, Universitas Muhammadiyah Sidoarjo

Abstract
Current technological developments have shown rapid development. Various kinds of innovations have been created with various functions and benefits provided, for example the detection of automatic cigarette smoke. Detection of cigarette smoke is very necessary to increase the level of comfort, especially for those who are in a closed room. By implementing the internet of things system in detecting cigarette smoke, it will be easier to monitor and control it via a smartphone. In this system MQ-2 sensors are used to detect cigarette smoke in the room, NodemCu microcontroller as a processor of data received from the sensor, and the buzzer as an alarm also blynk application to display notifications if the room is detected by cigarette smoke.

Keywords
NodemCU, Internet of Things, Blynk, cigarette smoke

Topic
Electrical Engineering

Link: https://ifory.id/abstract/xpJa42qcYnef

Corresponding Author
Mentari Putri Jati

Institutions
(a) Politeknik Elektronika Negeri Surabaya

Abstract
This paper discusses the comparison method between two type modulation of direct ac - ac matrix converter system with induction motor load. Matrix converter has received considerable interest as a viable alternative to the conventional back-to-back Pulse Width Modulation (PWM) converter in the ac - ac conversion, especially for no load induction motor drive. However, it is not convenient to control the matrix converter. The important point of matrix converter is the modulation technique that has two different technique in Venturini and indirect space vector modulation (ISVM). These methods are compared and analyzed in the total harmonic distortion of output and input to find better performance for induction motor drive. Simulated input and output parameters of matrix converter are presented using Matlab/Simulink software for both modulation techniques. The result reveal smaller total harmonic distortion in ISVM than Venturini modulation for matrix converter.

Keywords
Matrix converter; Induction motor; Venturini modulation; Indirect space vector modulation

Topic
Electrical Engineering

Link: https://ifory.id/abstract/CZXTh9tyBPWu

Corresponding Author
Nanang Ismail

Institutions
UIN Sunan Gunung Djati Bandung

Abstract
This paper discusses the complementary of the Quaternion method and the Boole method on the IMU sensor to calculate the orientation angle of the Stewart Platform. Validation of orientation angles The Stewart platform is very difficult to do using manual measuring devices, so it requires an IMU sensor to calculate the orientation angle. The IMU sensor consists of three types of sensors, namely the accelerometer, magnetometer, and gyroscope sensors. The Quaternion method is used to calculate the pitch angles and the roll of the accelerometer sensor, and calculate the yaw angle of the magnetometer sensor. The Boole method is used to calculate the pitch, roll, and yaw angles of the gyroscope sensor. Next, the orientation angle of the accelerometer and magnetometer is combined with the orientation angle of the gyroscope using complementary. The test is performed in six repetitions with angular parameters: 5, 10, 15, 20, 25, and 30 degrees. Overall, the pitch angle has an average of error percentage of 2.31%, roll angle has an average of error percentage of 1.98%, and yaw angle has an average of error percentage of 1.63%. The measurement results of the orientation angle of the Stewart Platform using the IMU sensor show that the complementary of Quaternion and Boole methods on the IMU sensor is quite feasible to be used as measuring instruments for the orientation angle of the Stewart Platform

Keywords
Complementary; Quartenion; Boole; Sudut Oerientasi; Stewart Platform; IMU Sensor

Topic
Electrical Engineering

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

Corresponding Author
Kartono Wijayanto

Institutions
Politeknik Negeri Bandung

Abstract
Application of automation technology using robots, especially robot arms in various industries such as industry (painting and welding), beverage industry (storage) and others has been able to improve the quality, precision and speed of production. At present the implementation of robotic arms is increasingly widespread and is used as a food and beverage waiter. The working system of the robotic arm in placing the holder in a specific destination or position is used by motors as electrical drive for each joint. Motor work is based on programs embedded in the micro controller. The dynamics of robot arm motion are based on backward or forward kinematics information methods. In this research, we will discuss the AX12A motor control of gripper robot arm so that it can hold the work piece or specimen at a certain level of hardness and weight in accordance with the ability of the motor. Dynamixel AX12A motor hall effect current sensor module which is fed to the controller and then processed using the Tsugeno Fuzzy Logic algorithm. The controller output signal will control the AX12A motor. The results obtained are in line with the expectation that the robotic arm gripper manages to hold specimen objects properly and in accordance with the setpoint given to rubber ball, chicken eggs, and chips specimens.

Keywords
Gripper, motor AX12, Fuzzy logic, Microcontroller

Topic
Electrical Engineering

Link: https://ifory.id/abstract/bnRZMC8rYpmJ

Corresponding Author
Syahril Ardi

Institutions
Mechatronics Department, Politeknik Manufaktur Astra, Jakarta, Indonesia

Abstract
This paper presents research conducted at an automotive manufacturing company that manufactures automotive components, including the rear axle. Housing assembly is one part of the rear axle assembly process that serves as a place to put other rear axle components, namely: axle shaft, differential, inner retainer bearings, brakes, drum brakes, and others. A new machine will be designed on the housing assembly production line with a larger capacity, which is 3000 pcs per month. The arc welding by hand machine was design by adding a motor and an inverter, a pneumatic cylinder as a gripping, a reed switch as a controlling cylinder. The main function of this machine is to connect the upper-lower assembly parts with the housing tube and housing end, and to keep the three parts fixed on one axis. If the three connected parts are not on the same axis, it can cause defects in the product. In this paper, we discuss control system design of the housing assembly arc welding by hand machine using the PLC as its control, and the CC-Link master module which functions as the expand input - output of this machine. With a new machine control design, production targets can be achieved, and product defects have decreased from 0.96% to 0.06%.

Keywords
Arc welding by hand machine; rear axle; PLC; CC-link Master Module

Topic
Electrical Engineering

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

Corresponding Author
Putri Wulandari

Institutions
University of Al Azhar Indonesia

Abstract
The potential of wind energy in Indonesia is generally relatively less compared to other countries in the subtropical region. With the Darrieus VAWT Type Vertical Axis Wind Turbine, the turbine does not have to be directed to the wind to be effective. Mill with vertical axis, generator and gearbox can be placed near the ground, so the tower does not need to support it and is more accessible for maintenance purposes. Gearbox is one of the main components of the motor which is referred to as a power transfer system, the transmission functions to move and change the power of the rotating motor. To get a large turbine torque, a gearbox design (large size on the turbine and a smaller size on the rotor generator) is needed. The number of blades used will also affect the effectiveness of the turbine in capturing the wind. With the number of 3 blades, get torque above 40 rpm, at wind speeds of 4.5 to 5 m/s.

Keywords
Power plant, VAWT, Turbine, Wind, Darrieus Type

Topic
Electrical Engineering

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

Corresponding Author
Pramudhito Herlambang

Institutions
(a) Electrical Engineering Department, Politeknik Negeri Semarang
Jln. Prof. Soedharto, Tembalang, Semarang, Indonesia, 50272
(b) Civil Engineering Department, Politeknik Negeri Semarang
Jln. Prof. Soedharto, Tembalang, Semarang, Indonesia, 50272

Abstract
Landslides is typically caused by heavy rain in some locations that have a certain slope of land compounded by deforestation or earthquakes. For instance, in 2018 there were 148 reported landslides in the Banjarnegara highlands, Indonesia. By using that fact, some research has been done. The research is about the indicator parameters of landslides by combining rain gauge sensors, soil moisture sensors, ground shift sensors and groundwater pressure sensors using Arduino Promini. The data from sensor is sent through LoRa Bee to the database server using NodeMCU ESP8266 which is connected to the Internet in realtime through access points. The data that has been sent to the server will be processed and displayed on the website. In this paper, the author devise an algorithm for analyzing the data from each sensor to a decision-making strategy. The decision-making method for an early warning of landslides uses a decision tree that compares the measured parameters with a predetermined threshold of each sensor. After analysis and testing, this system is expected to provide early warning of the landslides quickly and accurately.

Keywords
Landslides, LoRa Bee, NodeMCU, Early Warning System, WSN, Decision

Topic
Electrical Engineering

Link: https://ifory.id/abstract/7Wgdhx9fERJ2

Corresponding Author
rahmad santoso

Institutions
State Polytechnic of Malang

Abstract
Radiant charger is a free energy device that can be applied to produce electricity. The terms free energy means that this equipment does not use fuel, such as fossil fuels to produce energy. This research aims to design and analyze a prototype of radiant charger using five coils and five neodymium permanent magnets. In this research, a primary battery is needed as a source to generate mechanical work to rotate the rotor, also a coil and transistor to charge a secondary battery before the primary battery runs out. The results of the design and testing of the device produced a rotor rotation of 1020 rpm at 346 volts.

Keywords
Radiant charger, free energy, magnet permanent

Topic
Electrical Engineering

Link: https://ifory.id/abstract/4ynRN7ULjXqt

Corresponding Author
Rizki Dwi Purnomo

Institutions
a)Department of Electrical Engineering Education,Universitas Pendidikan Indonesia, Bandung, 40154, INDONESIA
*rizkipurnomo[at]student.upi.edu
b)Department of Physics Education, Universitas Pendidikan Indonesia, Bandung, 40154, INDONESIA
c)Department of Chemistry Education,Universitas Pendidikan Indonesia, Bandung, 40154, INDONESIA
d)Pusat Penelitian Elektronika dan Telekomunikasi,
Lembaga Ilmu Pengetahuan Indonesia , Bandung, 40135, INDONESIA

Abstract
This research aims to develop fiber optic sensors that can be used to measure acid rain levels. This optical fiber sensor uses the evanescent wave type method. SFP Transceiver with a wavelength of 1310nm is used as a fiber optic transmitter and receiver, while the Optical Power Meter (OPM) is used as a validator to test the developed sensor capability. The measurement results indicate the presence of loses successfully detected by OPM and SFP Transceiver. It appears that the maximum value of ammonia mass exceeding acid rain level has been successfully detected with a range of values of 7.12 dBm to 8.34 dBm and 7.51 dBm to 7.71 dBm respectively using SFP Transceiver and OPM. Good results during the validation process show that the optical fiber sensor has successfully worked with a strong correlation of 0.78 to monitor acid rain levels.

Keywords
Fiber optic sensors; multimode optical enforced; evanescent wave type; OPM; pH

Topic
Electrical Engineering

Link: https://ifory.id/abstract/CvD3cdzEFJ8Q

Corresponding Author
Juniono Raharjo

Institutions
(1) Center of Excellence for Automotive Control and System
Institut Teknologi Sepuluh Nopember Surabaya
(2) Research and Technology Center, PT. Pertamina (Persero)

Abstract
Nowadays, the development and population of electric vehicles (EV) have increased significantly in line with the issue of reducing air pollution and fuel dependence. EV uses a battery pack as the main energy source, and lithium-ion batteries are more widely used with consideration of having high energy, life cycle, and power density. Likewise, with the ITS electric scooter which uses lithium-ion battery packs with an operating voltage of 96 V. A battery charger has a crucial role in charging a battery pack. In this article, the design, consideration, and implementation of a battery charger have been described in detail. Chargers that have been developed have several features, such as programmable settings, constant current constant voltage (CCCV) algorithm, wide range voltage output, temperature cut-off, high efficiency, low-cost component, power quality improved by power factor correction (PFC), and be able to be integrated with battery management system via CAN communication. The charger is expected to be used reliably for EV lithium-ion battery charger by using those features

Keywords
Electric Vehicle, Lithium-Ion Battery Charger, Design and Consideration

Topic
Electrical Engineering

Link: https://ifory.id/abstract/7MmDA8Ux49FV

Corresponding Author
Mutia Delina

Institutions
Department of Physics, Universitas Negeri Jakarta

Abstract
An equipment for an object motion analysis base on time measurement has successfully developed by use a micro processsor”arduwino” for time measurement. The micro processor as a time measurement is controlled by the output signal of photo diode. By means of this equipment was obtained the time measurement accuracy up to three decimal places. When this equipment used to measure the gravity acceleration in our laboratory by means free fall of an object we obtained the value of 9.8570.035 (m/s2) in ten times measurement. Another advantage of this equipment is to study the terminal velocity when an object move in liquid.

Keywords
motion quanties; micrpprocessor; photo diode; terminal velocity; liquid.

Topic
Electrical Engineering

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