Open AccessResearch on Control Strategy of Grid-side Converter of Permanent Magnet Direct-drive Wind Turbine
Author(s) -
Hao Xu
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 - 10.1088/1755-1315/714/4/042017
Subject(s) - decoupling (probability) , turbine , control theory (sociology) , wind power , grid , vector control , voltage , magnet , computer science , control (management) , engineering , control engineering , electrical engineering , mathematics , mechanical engineering , artificial intelligence , induction motor , geometry
In order to make the permanent magnet direct-drive wind turbines stable and grid-connected operation, a double closed-loop control strategy based on grid voltage-oriented vector and current decoupling is proposed. First, the topology of the grid-side converter of the wind turbine is determined, then the mathematical model of the control strategy is derived, and the parameters of the PI regulator are calculated. Finally, the control strategy is verified by the simulation results. Through the analysis of the experimental results, it is found that the control strategy can achieve the functions of stabilizing the DC bus voltage of the fan and controlling the input power factor, ensuring the stable operation of the fan.