Fuzzy Logic Controller-Based AVC Relay for Voltage Control Application in Distribution Networks
Voltage control is considered one of the basic operational requirements for electrical power systems both at distribution and transmission levels. The most popular voltage control equipment includes On-Load Tap Changer (OLTC) transformer controlled by Automatic Voltage Control (AVC) relay, which is mostly used in 11 kV networks. In recent years, a growing number of distributed/embedded generators (DGs/EGs) are connected to distribution networks. Conventional AVC relay usually equipped with compounding whose setting are chosen to compensate for the voltage drop along the feeder(s) emanating from source substation. However, the integration of DGs/EGs including wind farms into distribution systems causes voltage regulation problems due to the interference with the performance of AVC relay. As a result, a proper voltage control of distribution network can not be achieved. Therefore, a new voltage control scheme of supply system connecting with DG/EG will be developed. This paper presents an attempt to design an AVC relay based on Fuzzy Logic. In this paper the structure of the proposed Fuzzy Logic based AVC relay is presented and the results that show its performance with and without DG/EG in distribution network are also presented and discussed.
AVC relay Distributed generator Distribution network Fuzzy Logic OLTC Voltage control
Zhigang Wan Liangzhong Yao
AREVA T&D UK Ltd, St. Leonards Avenue, Stafford, ST17 4LX UK
国际会议
The International Conference on Electrical Engineering 2009(2009 电机工程国际会议)
沈阳
英文
1-4
2009-07-05（万方平台首次上网日期，不代表论文的发表时间）