摘要
为提高无刷直流电动机(BLDCM)的抗负载扰动能力,分析了BLDCM的数学模型基础,提出了新的变指数趋近律,并将基于该趋近律的滑模控制方法应用于BLDCM的控制系统。仿真结果表明,与PID控制和常规指数趋近律相比,使用新的变指数趋近律的滑模控制系统在稳定性、快速性、准确性方面有显著提高,对负载扰动鲁棒性强。
To improve anti-load disturbance capability of brushless DC motors（BLDCM）, a mathematical model of BLDCM is analyzed. An exponent reaching law is then proposed. The slid- ing mode control based on a reaching law control method is applied to the BLDCM control system. Simulation results show that, compared with PID control and exponent reaching law, the system is significantly improved in stability, rapidity, accuracy and strong robustness against load dis- turbance.
出处
《上海电机学院学报》
2015年第5期267-271,共5页
Journal of Shanghai Dianji University
关键词
无刷直流电动机
滑模控制
变指数趋近律
brushless DC motor（BLDCM）
sliding mode control
variable exponent reaching law
