离网小型风力发电机组整流器仿真研究

Simulation Study of High-Factor Rectifier Applied in Off-Grid Wind Turbines

中文关键词:  风力发电  仿真

英文关键词:SVPWM  wind generation  SVPWM  simulation

中文摘要:

      针对离网小型风力发电机组中整流环节高功率因数的要求,在研究三相VSR工作原理的基础上,建立了基于前馈解耦的双闭环控制系统,采用SVPWM调制方法,实现了交流侧功率因数可调,得到稳定的直流电压。运用Matlab/Simulink对系统进行了建模,在变风速下对系统进行仿真分析。仿真结果验证了方案的优越性和可行性,为离网小型风力发电系统的研究及大规模应用奠定了基础。

英文摘要:

      A feed-forward decoupling strategy based double closed-loop control system was built to satisfy the request of a high power factor in the rectification part of off-grid wind turbines. The working principle of three-phase VSR was analyzed and SVPWM was used as the modulating method.The system was modeled and simulated by the use of Matlab/Simulink，simulations and analysis have been done at a varying wind speed.The goal of a high power factor was achieved and a steady voltage in the DC side was obtained.The results prove the feasibility and advantages,and the foundation for the research and application of off-grid wind turbines is constructed.