摘要
提出了变速恒频风力发电系统中双馈电机的无源性控制。系统采用能量的观点考虑双馈电机作为非线性控制对象,通过选择适当的状态稳态特性和注入阻尼方法,结合变速恒频风力发电系统控制要求,设计出一种既能保持定子侧单位功率因数运行、又可渐进跟踪期望定转子电流、转速的无源控制器,从而实现了系统的最大风能捕获。仿真结果表明,与传统的矢量控制相比,无源控制器具有很好的快速性和精确性。
A passivity-based control for a doubly-fed induction generator of variable-speed constant-frequency wind turbine was presented. The control system using energy concept considers the doubly-fed induction generator as a non-linear system, combine the control demands of variable-speed constant-frequency wind power generation, the proper reference （steady-state） behaviors and injecting damp method were chosen. The designed controller achieves maximum wind energy capture by keeping unity power factor in the stator side and asymptotic tracking desired rotor speed. Simulation results have shown that the proposed control algoritlun possess the fast dynamic response and good accuracy compared to classical vector PID scheme.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2010年第11期1491-1496,共6页
Acta Energiae Solaris Sinica
基金
陕西省"13115"科技创新工程重大科技专项项目(2007ZDKG-29)
关键词
双馈电机
无源性控制
最大风能捕获
定子磁链观测
doubly-fed induction generator
passivity-based control
maximum wind energy capture
stator flux observer
