Voltage Sensitivity Matrix Based P-V Droop Control for Adaptive Voltage Regulation in Rural Distribution

With the promotion of photovoltaic poverty alleviation policy in China, voltage overruns in distribution network with high photovoltaic penetration is significant. Based on droop control method, this paper designs an adaptive method for voltage regulation using distributed battery energy storage. The droop coefficients are designed using the system voltage sensitivity matrix. A closed-loop model of the system droop control is established, consequently, a method for predicting the voltage recovered by droop control is also proposed to prevent voltage exceeding limit. A practical sample of a rural distribution network in Inner Mongolia is simulated in Matlab/Simulink to verify the proposed method.