开关磁阻电机的自整定模糊-PID调速分析与验证  

Analysis and Verification of Self-Tuning Fuzzy-PID Speed Regulation of Switched Reluctance Motors

作　　者：王涛 WANG Tao(Taiyuan Research Institute of CCTEG,Taiyuan 030006,China)

机构地区：[1]中国煤炭科工集团太原研究院有限公司,山西太原030006

出　　处：《自动化仪表》2022年第8期44-47,53,共5页Process Automation Instrumentation

基　　金：山西天地煤机装备有限公司青年基金资助项目(M2021-QN20)。

摘　　要：开关磁阻电机的磁路在设计之初就会趋于饱和,所以有很强的非线性和强耦合的特性。传统的控制方法是参数不变的比例积分微分(PID)控制法。但是这种方法在电机调速过程中控制精度低、转速波动大。针对上述问题,将模糊逻辑控制算法和传统的PID算法相结合,提出改进的自整定模糊-PID控制策略,并在仿真平台上进行试验测试。仿真结果表明,改进的模糊逻辑控制策略明显优于传统的PID控制方法,超调幅度小、动态响应快速、稳态精度高。由此证明,改进的控制系统有比较强的抗干扰能力和鲁棒性。同时,改进后的开关磁阻电机控制方法可以应用于起动转矩大、起动电流小、负载变化明显且频繁启停的场合。The magnetic circuit of a switched reluctance motor tends to saturate at the beginning of the design,so it has strong nonlinear and strongly coupled characteristics.The traditional control method is the proportional integral defferential(PID)control method with constant parameters.However,this method has low control accuracy and large speed fluctuations during motor speed regulation.To address the above problems,an innovative study is conducted to propose an improved self-tuning fuzzy-PID control strategy by combining the fuzzy logic control algorithm and the traditional PID algorithm,and experimental tests are conducted on a simulation platform.The test results show that the improved fuzzy logic control strategy is significantly better than the traditional PID control method with small overshoot amplitude,fast dynamic response and high steady-state accuracy.This proves that the improved control system has relatively strong anti-interference capability and robustness.At the same time,the improved switched reluctance motor control method can be utilized for large starting torque and small starting current,such as especially suitable for applications requiring heavy load starting,significant load changes and frequent start/stop.

关 键 词：开关磁阻电机 非线性 强耦合 比例积分微分控制 自整定 抗干扰 

分 类 号：TH-6[机械工程]