Parameter Optimization Method for Virtual Oscillator Control in Microgrids
Virtual Oscillator Control(VOC)method allows several power conversion systems connected to a microgrid to synchronize naturally without communication.However,the selection of VOC parameters often requires iteration or opti-mization,which obstructs its practical application.This work thereby studied a method of calculating the parameters re-quired for a voltage source power conversion system which uses the descriptive function to determine the parameters of a dead zone oscillator and utilizes the electrical parameters of the power conversion system and the microgrid as input data.The method was indicated,by simulation,capable of reducing the generation of harmonics and the synchronization time consumption between devices under rationally determined parameters,and moreover,ensuring via pre-synchronization smooth transient generated by switch to the second power conversion system in the operating microgrid.