永磁同步电机的双口三自由度内模自适应控制器设计  

Design of Two-Port Three Degrees of Freedom Internal Mode Adaptive Controller for PMSM

作　　者：田艳丰[1] 吴宋林 王哲[1] 王健宇 TIAN Yanfeng;WU Songlin;WANG Zhe;WANG Jianyu(School of Electrical Engineering,Shenyang University of Technology,Shenyang 110870,China)

机构地区：[1]沈阳工业大学电气工程学院,沈阳110870

出　　处：《微特电机》2023年第1期32-37,44,共7页Small & Special Electrical Machines

基　　金：辽宁省教育厅科学研究经费项目(LFGD2020003)。

摘　　要：在一些高性能的驱动场合,电流耦合、控制量饱和和惯量扰动的存在是造成伺服系统控制性能变差的重要原因。为改善该种情况,分别对永磁同步电机矢量控制系统的电流环、速度环进行设计。电流环采用了双口三自由度内模控制结构,一方面实现了对定子电流交叉耦合电势的完全解耦,另一方面,通过适当的设计双口控制器,可以使系统拥有更好的伺服跟踪、扰动抑制和抗积分饱和性能。速度环采用参数自校正PI控制器,设计目标是解决工程实际中电机及其负载转动惯量变化导致的系统超调和稳态抖动问题。仿真结果表明,双口三自由度内模自适应控制器可以在同一矢量控制系统中实现稳定工作,系统具备更好的控制性能。In some high performance driving occasions,the existence of current coupling,saturation of control quantity and inertia disturbance are the important reasons for the deterioration of the control performance of the servo system.To better the plight,the current loop and speed loop of the permanent magnet synchronous motor vector control system were respectively designed.In the current loop,a two-port three-degree-of-freedom(DOF)internal model control structure was proposed,on the one hand,the stator current crosslink potential enabled complete decoupling;on the other hand,by properly designing a two-port controller,enabled the system to have superior servo follow,disturbance suppression and anti-windup capabilities.The speed loop adopted parameter self-correcting PI controller,the design goal was to solve the system overshoot and steady-state jetter caused by the change of the motor and its load rotational inertia in engineering practice.The simulation results show that the dual-port 3-DOF internal model adaptive controller can realize stable operation,and the system have more superior control characteristics.

关 键 词：永磁同步电机 电流耦合 惯量扰动 交叉耦合电势 双口结构 三自由度 解耦 参数自校正 

分 类 号：TM341[电气工程—电机]