交流伺服系统控制器参数自整定及优化  

Gain self-tuning of PI controller and parameter optimum for PMSM drives

作　　者：杨明[1] 张扬[1] 曹何金生[1] 徐殿国[1] 李悦[2] 

机构地区：[1]哈尔滨工业大学电气工程系,黑龙江哈尔滨150001 [2]北京市电力公司变电公司,北京100054

出　　处：《电机与控制学报》2010年第12期29-34,共6页Electric Machines and Control

基　　金：国家自然科学基金(51007012);哈尔滨工业大学优秀青年教师培养计划资助(HITQNJS.2009.026)

摘　　要：以交流永磁同步电机系统的速度控制器为研究对象,提出一种新颖、准确、易于实现的转动惯量辨识方法,并在此基础上提出一种参数自整定控制策略。这种策略的最大特点是:通过转动惯量辨识值计算得到初始PI参数,之后不再以速度阶跃响应曲线的超调量、上升时间、振荡时间等作为PI参数优化的标准,而是使电机速度以三角波曲线运动,在运动过程中以评价函数E作为衡量控制效果的量化标准。通过实验验证了此种方法的实用性和有效性。优化后的控制参数使评价函数E最小,不仅能够保证动态跟踪性能,同时提升了系统抗扰性能,在额定转速时负载100%波动最大转速波动仅为4r/min。Taking AC permanent magnet synchronous motor（PMSM） system as the research target,a novel,accurate and easily realized identification method for moment of inertia is presented.Based on this method,a kind of parameters self-tuning control strategy has been put forward.The marked feature of proposed strategy is that： after calculating initial PI gains by the identified moment of inertia,it has been no longer with speed step response curve,including overshoots,rise time,and oscillation time etc.,as PI gains optimization standard,but to make motor speed with triangle wave and take evaluating function E as a quantitative criteria for the control effect.The feasibility and efficiency of the proposed strategy has been verified by the experiential results.The optimized control parameters minimized evaluation function E,and ensured dynamic tracking performance,while increasing the anti-jamming performance.Running with rated speed when impact and release 100% rated load,the fluctuation maximum speed of the system is only 4r/min.

关 键 词：永磁同步电机 转动惯量辨识 参数自整定 评价函数 参数优化 

分 类 号：TM359[电气工程—电机]