张维,郭上华,曹奇,成鲁钰,吉兴全.基于配变高压侧信号校正的孤岛检测方法*[J].电测与仪表,2015,52(3):. Zhang Wei,Guo Shang-hua,Cao Qi,Cheng Lu-yu,Ji Xing-quan.Islanding Detection Method Based on Signal Correction Utilizing the HV-Side Signal of Distribution Transformer[J].Electrical Measurement & Instrumentation,2015,52(3):.
基于配变高压侧信号校正的孤岛检测方法*
Islanding Detection Method Based on Signal Correction Utilizing the HV-Side Signal of Distribution Transformer
Unscheduled island state may bring some negative effects on system, user, and distributed generation itself. Existing island detection methods have the defect of low-reliability and low-sensitivity. This paper proposed a detection method based on signal correction by HV-side of distribution transformer which can solve the problem of the conventional phase shift detection error. A synchronized sine signal is produced and compared with the phase and frequency of distributed generation’s voltage signal, and the islanding detection criterion can be obtained.
