基于新型趋近律的永磁同步电机模糊滑模控制
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摘要
针对永磁同步电机运行过程中由于参数变化和外部扰动造成系统瞬态性能和稳定性变差等问题,提出一种基于改进的幂次指数趋近律的模糊自适应滑模控制器设计方法,将控制器用于永磁同步电机速度控制。引入积分滑模面和模糊自适应方法优化趋近律未知参数,并与传统指数趋近律滑模控制对比。仿真实验表明,该方法能有效降低抖振,提高系统静态性能、动态性能和鲁棒性。
Due to the influence of parameter change and external disturbance,when the permanent magnet synchronous motor(PMSM)is running,the transient performance and stability of the system will deteriorate. To solve the problem,a Fuzzy adaptive sliding mode controller based on improved power exponential approaching law was proposed,which was applied to speed control of PMSM. The integral sliding mode surface and Fuzzy adaptive method were also utilized to optimize the unknown parameters. Simulation results show that compared with the exponential approaching law,the proposed method can more effectively reduce the chattering and improve the static performance,dynamic performance and robustness of the system.
Due to the influence of parameter change and external disturbance,when the permanent magnet synchronous motor(PMSM)is running,the transient performance and stability of the system will deteriorate. To solve the problem,a Fuzzy adaptive sliding mode controller based on improved power exponential approaching law was proposed,which was applied to speed control of PMSM. The integral sliding mode surface and Fuzzy adaptive method were also utilized to optimize the unknown parameters. Simulation results show that compared with the exponential approaching law,the proposed method can more effectively reduce the chattering and improve the static performance,dynamic performance and robustness of the system.
引文
[1]童克文,张兴,张昱,等.基于新型趋近律的永磁同步电动机滑模变结构控制[J].中国电机工程学报,2008,28(21):102-106.
[2]金宁治,王旭东,李文娟.电动汽车PMSM MTPA控制系统滑模速度控制[J].电机与控制学报,2011,15(8):52-58.
[3]贾洪平,孙丹,贺益康.基于滑模变结构的永磁同步电机直接转矩控制[J].中国电机工程学报,2006,26(20):134-138.
[4]田虎森,谢寿生,苗卓广,等.改进幂指数趋近律的航空发动机模糊滑模控制[J].火力与指挥控制,2016,41(2):108-112.
[5]刘金琨.滑模变结构控制MATLAB仿真[M].第2版.北京:清华大学出版社,2012.
[6]苗敬利,邹靖.无刷直流电机直接转矩控制系统的设计[J].电子技术应用,2014,40(7):88-91.
[2]金宁治,王旭东,李文娟.电动汽车PMSM MTPA控制系统滑模速度控制[J].电机与控制学报,2011,15(8):52-58.
[3]贾洪平,孙丹,贺益康.基于滑模变结构的永磁同步电机直接转矩控制[J].中国电机工程学报,2006,26(20):134-138.
[4]田虎森,谢寿生,苗卓广,等.改进幂指数趋近律的航空发动机模糊滑模控制[J].火力与指挥控制,2016,41(2):108-112.
[5]刘金琨.滑模变结构控制MATLAB仿真[M].第2版.北京:清华大学出版社,2012.
[6]苗敬利,邹靖.无刷直流电机直接转矩控制系统的设计[J].电子技术应用,2014,40(7):88-91.