摘要
文章以双馈异步电机为风力发电的变流器,分析了双馈式变速恒频风电系统在功率因数校正、电网电压畸变及无功补偿方面的控制策略,重点介绍了双馈变速恒频风电场系统,基于功率因数校正的控制方法分析了双馈异步发电机并网运行时电网电压畸变对风力发电系统运行稳定性和电能质量的影响,最后通过仿真验证了控制策略的正确性。仿真结果表明:文章提出的双馈变速恒频风电系统可以有效改善双馈异步电机并网运行时因电压畸变带来的性能下降问题。
In this paper,the control strategy of doubly-fed variable speed constant frequency wind power system in power factor correction,grid voltage distortion and reactive power compensation is analyzed by using doubly-fed asynchronous motor as the converter of wind power generation.The working principle of permanent magnet synchronous motor is introduced.Based on the control method of power factor correction,the infl uence of grid voltage distortion on the operation stability and power quality of wind power generation system is analyzed.Finally,the correctness of the control strategy is verifi ed by simulation.The simulation results show that the doubly-fed variable speed constant frequency wind power system proposed in this paper can eff ectively improve the performance degradation caused by voltage distortion when the doubly-fed induction motor is connected to the grid.
作者
陈诚
钱磊
苏俊
Chen Cheng;Qian Lei;Su Jun
出处
《时代汽车》
2024年第4期13-15,44,共4页
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关键词
风力发电
调速控制
变速恒频
并网控制
Wind power
Speed control
Variable speed constant frequency
Grid-connected control
