Open AccessResearch on Control Technology of Distributed Power Generation Virtual Synchronous Generator
Author(s) -
Shuai Tang,
Weijun Wang,
Li Shu,
Longbo Mao,
Wenqiang Wang
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/657/1/012083
Subject(s) - voltage droop , permanent magnet synchronous generator , computer science , control theory (sociology) , ac power , matlab , generator (circuit theory) , grid , inverter , automatic frequency control , control engineering , power (physics) , power control , electric power system , control (management) , voltage , topology (electrical circuits) , engineering , voltage source , electrical engineering , mathematics , telecommunications , physics , geometry , quantum mechanics , artificial intelligence , operating system
Virtual synchronous generator control technology, as a method that enables distributed inverter power supplies to have similar characteristics to synchronous generators, has an important supporting role in improving the stability of the power system. Based on the rotation equation and electrical equation of the synchronous generator, this paper firstly constructed the virtual synchronous generator topology and mathematical model; then designed the corresponding virtual synchronous generator active-frequency droop control and reactive power-voltage droop control strategies, and through the frequency domain method, this paper analyzes the influence of key control parameters. Finally, the related control strategy is verified in the Matlab/Simulink simulation model. The results show that the proposed control strategy can seamlessly switch between off-grid and grid-connected modes, and has good frequency and voltage support capabilities.