摘要
分数阶滑模控制在永磁同步电机(PMSM)中的应用得到广泛研究,但目前该类方法中分数阶次大多为常数。为了进一步提高分数阶滑模控制器的全局控制性能,提出一种新的模糊变阶次分数阶滑模控制方法。首先基于PMSM的数学模型设计了变阶次分数阶滑模速度控制器;然后通过分析不同阶次时分数阶滑模控制器的性能,获得了最优阶次的变化规律;最后构建了以速度误差为输入、阶次为输出的模糊推理规则,并设计了模糊变阶次分数阶滑模控制器。仿真结果证明所提方法在控制性能上优于常数阶次分数阶滑模控制方法。
The application of fractional sliding mode control method in permanent magnet synchronous motor（ PMSM）has been widely studied,while,currently the fractional order in the control method is constant. In order to improve the global control performance,the fuzzy logic based variable-order fractional sliding mode control for PMSM is proposed in this paper. Firstly,the variable-order fractional sliding mode controller（ VOFSMC） is designed based on the mathematical model of the PMSM,and the stability of the proposed method is proved. Then with the performance analysis of fractional sliding mode controller for different orders,the optimal switching rules of the order is obtained. At last,the fuzzy inference rules are established with error as input and order as output,and the fuzzy logic based VOFSMC is designed. The numerical simulation results show that the proposed method has better performance than the conventional constant order fractional sliding mode control method.
出处
《电测与仪表》
北大核心
2017年第6期81-86,共6页
Electrical Measurement & Instrumentation
基金
国家自然科学基金资助项目(611040408
51505213)
江苏省自然科学基金资助项目(BK20151463
BK20130744)
关键词
分数阶微积分
滑模控制
变阶次
模糊推理
永磁同步电机
速度控制
fractional calculus
sliding mode control
variable-order
fuzzy inference
permanent magnet synchronous motor
speed control
