混合励磁同步电机弱磁控制  

Flux-weakening control of hybrid excitation synchronous machines

作　　者：郭栋[1,2] 张波[1] 王巍[1] 祁晓野[2] GUO Dong;ZHANG Bo;WANG Wei;QI Xiao-ye(School of Electrical Engineering,Liaoning University of Technology,Jinzhou 121001,China;R&D Centre of Fluid Power Transmission&Control Technology,Beihang University,Beijing 100191,China)

机构地区：[1]辽宁工业大学电气工程学院,辽宁锦州121001 [2]北京航空航天大学流体传动与控制技术研发中心,北京100191

出　　处：《电机与控制学报》2020年第5期135-142,共8页Electric Machines and Control

基　　金：国家自然科学基金(61603165);辽宁省自然科学基金指导计划项目(201602370,2019-ZD-0697)。

摘　　要：为了研究混合励磁同步电机在高速时的带载能力、速度控制性能与抗干扰能力,提出了基于模糊控制的励磁电流弱磁控制策略和自抗扰控制的速度控制策略。在分析了励磁电流与电枢电流弱磁控制特点以及弱磁控制与电机带载能力之间关系的基础上,以转速误差与负载观测值为模糊控制输入,实现给定励磁电流的动态调整,协调励磁电流在混合励磁同步电机控制中带载与弱磁扩速之间的矛盾,使在满足弱磁扩速要求的基础上,提高了带载能力与速度控制性能;为了克服混合励磁同步电机调速过程中的参数耦合及负载扰动等影响,采用自抗扰控制方法,提高了调速系统的抗干扰能力。最后,仿真验证了所提出控制策略的有效性和可行性,提高了系统在高速时的整体动态性能。In order to study the load-bearing ability and speed control performance and anti-interference ability of the hybrid excitation synchronous machines at high speed,the excitation current flux-weakening strategy based on fuzzy control and the speed control strategy of active disturbance rejection control was proposed.The characteristics of flux-weakening control of excitation current and armature current were analyzed,and the relationship between flux-weakening control and load carrying capacity of motor was combined.The dynamic adjustment of the given excitation current was realized with the speed error and the values of the load torque observer as the fuzzy control input,and the contradiction between the load torque and the weak magnetic field in the hybrid excitation synchronous motor was coordinated.On the basis of meeting flux-weakening control,the carrying capacity and speed control performance were improved.A nonlinear method named active disturbance rejection control was adopted,with the aim to overcome the influence of parameter coupling and load disturbance and to improve the robustness and dynamic response ability of the speed control system in the speed control of hybrid excitation synchronous motor.Finally,the simulation results prove the effectiveness and feasibility of the proposed control strategy,which improves the load-hearing ability,anti-interference ability and dynamic response ability of the system at high speed.

关 键 词：混合励磁同步电机 速度控制策略 弱磁控制 模糊控制 自抗扰控制 励磁电流 

分 类 号：TM351[电气工程—电机]