Open AccessResearch on VSG Control Strategy of Microgrid
Author(s) -
Hao Yue,
Hua Li
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/440/3/032087
Subject(s) - microgrid , grid , inverter , computer science , process (computing) , stability (learning theory) , inertia , generator (circuit theory) , control theory (sociology) , control (management) , control engineering , permanent magnet synchronous generator , distributed generation , voltage , engineering , power (physics) , electrical engineering , renewable energy , mathematics , physics , geometry , classical mechanics , quantum mechanics , artificial intelligence , machine learning , operating system
In order to solve the low inertia problem and damping effect brought by the large-scale integration of Distributed Generators (DGs) into the grid, the Virtual Synchronous Generator (VSG) control strategy is introduced, The VSG control strategy is applied to the distributed generators grid-connected inverter to make it have the characteristics of synchronous generator, which can provide voltage and frequency support for the grid.Based on the established model, a detailed and complete VSG parameter calculation process is given,and aiming at the problem of seamless switching operation of microgrid based on VSG control, a simplified presynchronization control method is presented, which can simplify the operation and improve the safety and stability of the microgrid. The simulation results based on Real-Time Digital Simulator prove that the proposed method can effectively improve the safety and stability and has good practicability.