Voltage Control Technology of Photovoltaic Grid-Connected Power Generation Base on OLTC and SVC

A new voltage control technology is presented by adjusting the on-load tap changer(OLTC) tap to improve the influence of voltage distribution when photovoltaic power connected with the distribution network;in that case that voltage cannot be controlled by only regulating OLTC,the voltage deviation can be within the allowed limit by regulating the OLTC and static var compensator(SVC).Simulation results show that this control technology can effectively reduce the influence of distributed photovoltaic grid connected power generation on voltage distribution.