刚性联接双电机系统功率平衡控制策略  

Power balance control strategy of rigid-coupled system with dual motors

作　　者：贺虎成[1] 谭阜琛 刘博涛 邵贺 王承海 HE Hucheng;TAN Fuchen;LIU Botao;SHAO He;WANG Chenghai(School of Electrical and Control Engineering,Xi’an University of Science and Technology,Xi’an 710054,China)

机构地区：[1]西安科技大学电气与控制工程学院,陕西西安710054

出　　处：《电机与控制学报》2024年第2期162-173,共12页Electric Machines and Control

基　　金：陕西省自然科学基础研究计划-陕煤联合基金(2019JLM-51)。

摘　　要：针对刚性联接双电机系统因参数摄动和负载变化导致的系统输出功率不均衡问题,基于转矩闭环矢量控制系统,提出了一种自抗扰模型预测(ADRC-MPCC)转矩交叉耦合功率平衡控制策略。首先,建立刚性联接双电机系统的统一数学模型,基于该模型分析了功率不平衡产生的原因;其次,通过确定合适的转矩反馈补偿系数,提高了系统中双电机的同步性能;最后,设计自抗扰控制器对转速环、磁链环和转矩环的扰动进行估计和补偿,并通过简化模型预测控制方法对逆变器开关状态进行选择,减少了控制器的运算时间。仿真与实验结果表明,提出的控制策略实现了参数摄动和负载扰动情况下刚性联接双电机系统的输出功率平衡,验证了功率平衡控制策略的有效性。In addressing the issue of unbalance output power in a rigid-connected dual-motor system due to parameter perturbations and load variations,based on the torque closed-loop vector control system,an active disturbance rejection control-model predictive current control(ADRC-MPCC)torque cross-coupling power balance control strategy was proposed.Firstly,a unified mathematical model of the rigidly connected dual-motor system was established,and the causes of power unbalance were analyzed based on the model.Secondly,the synchronous performance of the dual-motors in the system was improved by determining the appropriate torque feedback compensation coefficient.Finally,the automatic disturbance rejection was designed.The controller estimates and compensates the disturbances of the speed loop,flux link and torque loop,and selects the switching state of the inverter through a simplified model predictive control method,which reduces the computation time of the controller.Simulation and experimental results show that the proposed control strategy realizes the output power balance of the rigidly coupled dual-motor system under the condition of parameter perturbation and load perturbation,which verifies effectiveness of the power balance control strategy.

关 键 词：双电机 刚性联接系统 同步控制 自抗扰控制 模型预测控制 

分 类 号：TM341[电气工程—电机]