纯电动汽车永磁同步电机驱动控制

以纯电动汽车采用的内置式永磁同步电机(interior permanent magnet synchronous motor, IPMSM)为研究对象，在提高电机的运行效率、扩宽转速范围的同时，又能在复杂工况中的提升响应速度并改善行驶舒适性的问题。首先建立IPMSM的数学模型，提出低速时采取最大转矩电流比 （maximum torque per ampere， MTPA）控制，中高速时采用弱磁（flux weakening, FW）控制的全速域电流控制策略，并分析得到各个控制求解的数学模型。然后对IPMSM数学模型进行离散化处理，得到状态空间方程，以此为基础设计模型预测控制 (model predictive control , MPC)的转速控制器和无差拍预测控制（deadbeat predictive control，DPC）的电流控制器。最后在Matlab/Simulink中搭建IPMSM的仿真模型，验证整个控制策略的有效性与可靠性。

Drive control of permanent magnet synchronous motor in pure electric vehicle

Taking the built-in permanent magnet synchronous motor (IPMSM) used in pure electric vehicles as the research object, while improving the operating efficiency of the motor and widening the speed range, it can also improve the response speed in complex working conditions and Improve driving comfort. First, the mathematical model of IPMSM is established, and the maximum torque per ampere (MTPA) control is adopted at low speed, and the full-speed current control strategy of flux weakening (FW) control is adopted at medium and high speeds, and the various analysis is obtained Control the mathematical model of the solution. Then, the IPMSM mathematical model is discretized, and the state space equation is obtained. Based on this, the model predictive control (MPC) speed controller and the deadbeat predictive control (DPC) current control are designed. Finally, a simulation model of IPMSM is built in Matlab / Simulink to verify the effectiveness and reliability of the entire control strategy.