A Study on Static Var Compensators

• Main Authors: Ruey-Zen Yeh, 葉瑞仁
• Other Authors: Yuan-Yih Hsu
• Format: Others
• Language: zh-TW
• Published: 1996
• Online Access: http://ndltd.ncl.edu.tw/handle/83602574294600857858

碩士 === 國立臺灣大學 === 電機工程研究所 === 84 === The purpose of the thesis is to investigate the characterist- ics of the static var compensator (SVC) by conducting field tests on the three-phase distribution simulator at the Distribution Automation Laboratory of National Taiwan University. The applica- tion of SVC can be divided into two parts. One is on steady state performance and the other is on transient characteristics. In steady state, SVC can improve the power factor and reduce the feeder loss. In transient state, SVC can reduce transient duration and voltage dips. The thesis takes advantage of the three-phase distribution simulator to demonstrate the following research: In steady state, SVC is used to reduce the feeder loss accord -ing to the data from load forecast. Both the results of simula- tion and field test prove that SVC can reduce the feeder loss effectively. In transient state, we simulate the starting condition of an induction motor. We use SVC to compensate the transient voltage dips at the same time. EMTP simulations and field tests prove that SVC can restore the voltage to an acceptable range in two cycles.