纯电动汽车无刷电机控制系统的建模与仿真

针对无刷直流电机传统PI控制的局限性，从无刷直流电机的基本原理出发，通过模糊PD控制器与积分相结合，将永磁无刷直流电机应用于纯电动汽车驱动系统。采用Matlab／Simulink平台，同时结合S-函数，构建了基于模糊控制的无刷直流电机转速一电流双闭环控制系统模型，利用该模型分析无刷直流电机的动静态性能，得到了无刷直流电机运行时的反电势、相电流、转矩和速度的曲线。结果表明，采用转速一电流双闭环模糊控制调速策略具有超调小、响应速度快、鲁棒性好、自适应能力强等优点，使系统获得了较好的控制性能，为实际纯电动汽车驱动控制系统的分析与设计提供了新的思路。

Modeling and Simulation of BLDCM Control System for Pure Electric Vehicle

To the limitation existing in traditional PI control policy of brushless DC motor, based on the principle of brushless DC motor （BLDCM）, through fuzzy PD controller and integrating element, so it will be used in pure electric vehicle（PEV） control system, this paper establishes a double close loops with current and speed fuzzy control model of BLDCM by Matlab/Simulink and S-Function. The static and dynamic performances of BLDCM were simulated, and the back electromotive force, phase current, torque and speed curves were demonstrated. The results show that the system has better performance and stronger anti-interfere ability and this novel method offers a new thoughtway for designing and debugging electric vehicle brushless DC motors.