摘要
以孤岛运行的双馈异步发电机(DFIG)系统为研究对象,以实现风力发电系统在带非线性负载时能够输出稳定幅值和频率的电压为目标,分别在转子侧变换器(RSC)和定子侧变换器(SSC)的控制中采用基于正转同步速坐标系下的比例积分谐振(PIR)控制,可解决传统比例积分控制带宽有限导致的控制性能下降问题,同时可减少谐波分量的提取以及谐振控制器的使用数量,简化系统控制。最后,通过仿真验证在非线性负载条件下能获得良好的输出电压、电流特性。
Studying islanding double-fed induction generator (DFIG) system to achieve the constant voltage and frequency at the stator side of wind turbine with nonlinear loads, the proportion integration resonance (PIR) control method in the forward synchronous speed coordinate was applied in control of both rotor side convertor (RSC) and stator side convertor (SSC). This method improved the deterioration control performance caused by the limit control bandwidth of the traditional proportion integral controllers, reducing extraction of harmonic components and the number of resonance controllers at same time, simplifying system control. Finally, the simulation results verify that the DFIG with nonlinear loads can achieve good performance of output voltage and current.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2015年第8期1791-1798,共8页
Acta Energiae Solaris Sinica
基金
国家高技术研究发展(863)计划(2011AA050204)
关键词
风力发电系统
双馈异步发电机
孤岛运行
非线性负载
比例积分谐振控制
wind turbine
doubly fed induction generator (DFIG)
island operation
nonlinear loads
proportion integration resonance (PIR)