摘要
针对含有执行器失效的不确定性风力发电系统,采用切换控制方法对其进行了研究。根据此类系统的工作模式和工作状态,将执行器的失效和恢复正常看做是两个事件交替切换的系统;采用切换式控制在执行器故障期间停止有效控制,在执行器恢复良好后施加控制信号。对含有执行器最大失效率和不确定性外部干扰的系统,通过利用H;性能指标和切换控制原理设计出系统的鲁棒控制器;对双馈电机风力发电系统进行了研究,用以证明提出方法的有效性。
A switching control method was used to study the uncertain wind power generation system with actuator failure. First of all, the working mode and state of this kind of system were discussed. The failure and recovery of the actuator are regarded as a system where the two events alternately switch. Secondly, the switching control was used to stop the effective control during the failure of the actuator, and the control signal was applied after the actuator recovers well. For the system containing the maximum failure rate of the actuator and the uncertain external interference, the robust controller of the system was designed by using H;performance index and the switching control principle. Finally, the wind power generation system of a double-fed pitch machine was studied to prove the effectiveness of the proposed method.
作者
王宏伟
张倩
WANG Hong-wei;ZHANG Qian(School of Electrical Engineering,Xinjiang University,Urumqi Xinjiang 830047,China;School of Control Science and Control Engineering,Dalian University of Technology,Dalian Liaoning 116024,China)
出处
《计算机仿真》
北大核心
2022年第2期62-67,92,共7页
Computer Simulation
基金
新疆自治区自然科学基金(2019D01C073)。
关键词
切换原理
执行器故障
风力发电系统
Switching principle
Actuator failures
Wind power generation system
