Work

Instantaneous power calculation based on intrinsic frequency of single-phase virtual synchronous generator

Year: 2017

Type: article

Abstract: In order to enhance the stability of single-phase microgrid, virtual synchronous generator (VSG) control method is investigated in this paper. Its electromagnetic model and electromechanical model are established to illustrate the performance of VSG. Considering the 2nd fluctuation of fundamental-frequency in the output power, an instantaneous power calculation strategy is proposed based on the intrinsic frequency of single-phase VSG. Besides, a virtual power calculation method is presented to achieve islanded/grid-connected seamless transition. Stability analysis and comparison simulation results demonstrate the correctness of the presented power calculation method. At last, the effectiveness of the proposed approach is verified by comparison experiments of islanded/grid-connected operations in a 500 VA single-phase inverter.

Source: Journal of Modern Power Systems and Clean Energy

DOI: 10.1007/s40565-017-0272-5

Authors: Yangyang ZHAO, Jianyun CHAI, Shien WANG, Kai SUN

Institution: Tsinghua University

Language: English

Topic: Microgrid Control and Optimization

Subfield: Control and Systems Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Industry, innovation and infrastructure

Open Access status: diamond

Funder: National Key Research and Development Program of China