交流异步电机ADRC+PI控制策略研究  

The research of asynchronous motor vector control based on ADRC + PI control strategy

作　　者：冯兆磊[1] 王久和[1] 马先芹[1] 

机构地区：[1]北京信息科技大学自动化学院,北京100192

出　　处：《北京信息科技大学学报（自然科学版）》2013年第5期32-37,42,共7页Journal of Beijing Information Science and Technology University

基　　金：国家自然科学基金项目(51077005);北京市人才强教深化计划"学术创新团队计划"项目(PHR201007130)

摘　　要：针对交流异步电机转子参数在运行中易发生变化影响交流异步电机性能问题,对转子磁链子系统和转速子系统的2个电流内环分别设计了结构相同的一阶自抗扰控制器(ADRC,active disturbance rejection control),实现了定子电压励磁分量对励磁电流的解耦控制和定子电压转矩分量对转矩电流的解耦控制。对于转速子系统的转速外环采用一阶ADRC控制器,转子磁链子系统外环采用PI控制器。采用此控制策略,可改善交流异步电机的动、静态性能。仿真结果表明,ADRC+PI控制策略与PI控制策略相比,交流异步电机具有转速无超调、调节时间短、抗干扰能力强等优点。Induction motor is a strong coupling system which is nonlinear, and the rotor parameters of motor change easily in operation. Two fist-order ADRC controllers which had same structure were designed for inner loop of current in rotor flux subsystem and inner loop of current in rotor speed subsystem respectively. The design has realized the deeoupling control of the stator voltage excitation component to the exciting current and the deeoupling control of the stator voltage torque component to the torque current. Design a first-order ADRC controllers for the speed outer loop of speed subsystem. The flux outer loop employs the PI controller. The dynamic and static performance of AC asynchronous could be improved when the above control strategy was adopted. The simulation results from the Matlab/ Simulink shows, that compared with the vector control system entirely designed by the PI regulator, the system designed by this paper has better performance of speed overshootingless, short setting time and strong anti-interference ability when confronted the load disturbance and the variation of motor parameters.

关 键 词：异步电机 电压源逆变器 矢量控制 动态解耦 一阶自抗扰控制器 

分 类 号：TM351[电气工程—电机]