摘要
12脉波整流器由于其固有的非线性,当负载大范围变化时,传统的PID控制策略无法适应系统的参数变化,影响最终的控制效果。而模糊逻辑控制能够在输入不精确的条件下处理非线性问题。针对12脉波整流器设计了一种模糊控制器对其输出电压进行控制,并与传统PID控制的整流器性能进行了比较。在Matlab/Simulink环境下分别对基于PID、模糊控制方法的整流器进行了仿真,并对基于模糊控制方法的整流器进行了实验验证。仿真及实验结果证明,模糊控制可以克服负载变化对系统的影响,提高系统的响应速度,改善整流器动态性能。
Due to its nonlinearity, when the load changes largely, 12-pulse rectifier with the PID controller can＇t adapt to the changes of the system parameters, which may lead to poor control performance. The fuzzy control can work under imprecise input and can handle nonlinear problems. A fuzzy controller was designed for 12-pulse rectifier to control the output voltage of the system. And the control performance was compared with the one with traditional PID controller. Rectifier based on PID and fuzzy control method was simulated In Matlab/Simulink environment, and veripied the rectifier based on fuzzy control in experiment. The simulation and experiment results show that fuzzy control can overcome the impact of the load changing, and can improve response speed and its dynamic performance.
出处
《电气传动》
北大核心
2015年第11期54-57,共4页
Electric Drive
基金
国网内蒙古东部电力有限公司科技项目(WNJ131-0070)
