Research of The Influence of Initiative Anti-Islanding Protection in High Penetration Rating of Distributed Generation

摘要

The initiative anti-islanding protection is used extensively because of the capacity of decreasing or removing Non-detection zone and no additional cost for MPU in converter interface.But the essence of initiative anti-islanding protection is injecting disturbance into the system.When the distributed generation interconnects to the utility,the initiative anti-islanding protection would affect the power quality and decrease the stability margin.This essay researches the influence of the initiative anti-islanding protection in high penetration rating of distributed generation.By theoretical researching and emulation verifying,the conclusion is obtained that the initiative anti-islanding protection would adversely affect the power system in high penetration rating.It would decrease the stability margin of power system and reduce the power quality.