改进模糊滑模的永磁同步电机控制
Improved fuzzy sliding mode control of permanent magnet synchronous motor
赵杰 1王富利 1张瑞1
作者信息
- 1. 黑龙江科技大学 电气与控制工程学院,哈尔滨 150022
- 折叠
摘要
为提高矿用牵引PMSM性能,分析传统PMSM控制中指数趋近律的优缺点,结合PMSM运行时的状态量,设计了一种自适应的指数趋近律,构建改进滑模控制器,利用模糊算法进一步优化改进滑模控制器,给出改进模糊滑模控制器.结果表明:空载时,改进模糊滑模控制器和改进滑模控制器均可实现无超调启动,改进滑模控制器到达参考转速的时间比滑模控制器提高0.12 s,改进模糊滑模控制器到达参考转速的时间比改进滑模控制器提高0.01 s;突加负载时,改进滑模控制器比滑模控制器最大误差减小0.17%,改进模糊滑模控制器比改进滑模控制器最大误差减小2.53%.证明了改进模糊滑模控制器可有效提高系统控制精度,改善了系统动态性能.
Abstract
This paper aims to improve the performance of mining traction PMSM.The study involves analysing the advantages and disadvantages of the exponential approximation law in traditional PMSM con-trol;designing an adaptive exponential approximation law based on the state quantity of the PMSM itself in operation,and accordingly developing an improved sliding mode controller;furtherly optimizing this controller and obtaining the improved fuzzy sliding mode controller.The results show that when unloaded,both the improved fuzzy mode controller and the improved sliding mode controller can start with no over-shoot,and the time to reach the reference speed of the improved sliding mode controller is 0.12 s faster than that of the sliding mode controller,and the time to reach the reference speed of the improved fuzzy sliding mode controller is 0.01 s faster than that of the improved sliding mode controller.With the load increasing suddenly,the maximum error of the improved sliding mode controller is reduced by 0.17%compared with the sliding mode controller;and the maximum error of improved fuzzy mode controller is reduced by 2.53%compared with the improved sliding mode controller.It is proved that the improved fuzzy sliding mode controller can effectively improve the control accuracy and dynamic performance of the system.
关键词
永磁同步电机/模糊控制/滑模控制器/改进指数趋近律Key words
permanent magnet synchronous motor/fuzzy control/sliding mode controller/improved exponential approach law引用本文复制引用
基金项目
黑龙江省省属高校基本科研业务费项目(2022-KYYWF-0551)
出版年
2024
国家科技期刊平台
NSTL
万方数据