Voltage Profile Improvement Analysis during the Loss of Transmission Lines on 150kV Subsystem using Static Synchronous Compensator
Haidar Ali (a), Amien Rahardjo (a), Agus Setiawan (b), Fauzan Hanif Jufri (a), Faiz Husnayain (a*)
(a) Department of Electrical Engineering, Faculty of Engineering, Universitas Indonesia
(b) Pusat Pengaturan Beban (P2B) PT PLN Persero Gandul
Abstract
A Flexible AC Transmission System (FACTS) device which is Static Synchronous Compensator (STATCOM) is commonly use to overcome voltage instability issue. However, the implementation of the STATCOM may cause a voltage increasement within the allowable limits in all areas and maintain the voltage stability of interconnected system. Therefore, this paper proposes an optimum placement of STATCOM to maintain the voltage profile of 150 kV subsystem during the loss of the transmission lines. The proposed methodology is verified by using a 150 kV interconnected system where the loss of two 150 kV transmission lines may lead to a voltage instability in the entire interconnected subsystem. The results show that the proposed method can maintain the voltage stability in the subsystem within the allowable limits in all period.
Keywords: Brute force method; FACTS; STATCOM; voltage stability
Topic: Electrical Engineering