Evaluation of Inverter Resident Passive Islanding Detection Method for Grid Connected PV System Under Constant Power Mode
Islanding is undesirable because it may poses safety hazard to utility service personnel and also it can lead to asynchronous reclosure which will damage the equipments. Grid connected PV inverters are required to have passive islanding detection and protection methods that cause the PV inverter to stop supplying power to the utility grid. The active and reactive power equations and Non-Detection Zone of Over/Under Voltage Protection and Over/Under Frequency Protection methods for grid connected PV system under constant power mode inverter are derived and analyzed in this paper. Analyses indicate that the behavior of the PV system at the time of disconnection are depend on the mismatch power, these results also indicate the Non-Detection Zone of Over/Under Voltage Protection and Over/Under Frequency Protection methods are considerable large and include balanced islands which reduces the dependability of these passive methods.
Photovoltaic System Grid Connected Inverter Constant Power Mode Islanding Detection Method
Fei Wang Zigang Xu
Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control (North China E North China Electric Power University, Baoding 071003, Hebei Province, China
国际会议
2009年中国控制与决策会议(2009 Chinese Control and Decision Conference)
广西桂林
英文
3086-3089
2009-06-17（万方平台首次上网日期，不代表论文的发表时间）