永磁伺服系统基于微分自适应补偿的快速无超调控制策略  

Non-Overshoot and Fast Response Control of PMSM Servo System Based on Differential Adaptive Compensation

作　　者：黄科元[1] 周滔滔[1] 黄守道[1] 姜真[2] 叶虹志 

机构地区：[1]湖南大学电气与信息工程学院,长沙410082 [2]湖南大学信息科学与工程学院,长沙410082

出　　处：《电工技术学报》2014年第9期137-144,共8页Transactions of China Electrotechnical Society

基　　金：湖南省自然科学基金(11JJ3062);国家国际科技合作(2011DFA62240);湖南大学青年教师成长计划资助项目

摘　　要：高性能永磁位置伺服系统要求无超调且快速的动态响应性能,一般控制策略往往无法同时满足其要求,对此提出反馈微分和前馈微分自适应控制的新型控制策略。分析了伺服系统反馈微分的作用,表明其能有效减小响应超调,但同时会降低响应速度。通过引入前馈微分,根据位置误差信号自适应调节,在保证反馈微分有效减小超调的前提下,抵消了其速度抑制作用;同时,前馈微分根据位置给定指令进行速度和电流预测,预测值补偿至速度和电流给定,从而做到提前响应。仿真和实验验证了新型控制策略自适应的有效性,解决了位置伺服系统响应超调性和快速性之间的矛盾,能实现无超调快速自适应响应控制。High performance servo system of permanent magnet requires fast dynamic response to have no overshoot,and the general control strategies are often unable to meet their requirements.The paper presents a novel control strategy of feedback differential and feed-forward differential adaptive control.The feedback differential can effectively reduce the overshoot of servo system,but reducing the speed of response.Through the control of feed-forward differential and self adaptive regulation according to the position error signal,it can ensure the premise which feedback differential is effective to reduce the overshoot,and offset its speed inhibition; at the same time,the speed and torque prediction of feed-forward differential according to the given directive positions,serve as the given speed and given torque,so as to achieve early response.Simulation and experimental results demonstrate the effectiveness of the self adaptive of the new control strategy,and solves the contradiction between the overshoot and the fast response of servo system,and it can achieve the adaptively fast response without overshoot.

关 键 词：伺服 快速响应 无超调 自适应 

分 类 号：TM315[电气工程—电机]