摘要
电动汽车要求驱动电机具有快速转矩响应以保证整个系统的高动态性能,电流预测控制具有理论严密、实现简单、快速响应的特点,满足电动汽车对扭矩快速响应的要求。基于切换理论建立了永磁同步电机侧及逆变器的切换动态模型,在此基础上提出了基于预测控制的电流跟踪控制策略,通过切换模型对不同开关模式下一周期的电流进行预测以此选择最优的开关状态。最后在Matlab/Simulink中搭建了仿真模型,仿真结果表明了所建模型和控制策略的正确性。
Electric vehicles （EV） need a fast torque response to guarantee the high dynamic performance of the overall system, and the predictive current control is suitable for the fast response of EV with characteristics of strict theory,simple implementation and fast response.Based on the switching theory, a dynamic model of the permanent magnet synchronous motor and inverter is established.A current tracking control strategy is proposed based on the predictive control and the optimal switching state can be selected by using the model to predict the current of a period of different switching mode.Simulation results show that the proposed model and the control strategy are correct and effective.
出处
《山东电力技术》
2015年第12期1-4,共4页
Shandong Electric Power
基金
国家自然科学基金项目资助(61503216)
关键词
电动汽车
永磁同步电机
预测控制
切换系统
电流控制
electric vehicles （EV）
permanent magnet synchronous motor （PMSM）
predictive control
switched model
current control
