电动汽车无刷直流电机驱动系统实时仿真

在设计开发电动汽车的过程中，采用实时数字仿真可实现并行工程，缩短开发时间，节约开发费用。基于方框图建模工具Simulink建立无刷直流电机驱动系统模型，采用dSPACE实时仿真环境自动生成控制器及被控对象模型实时代码。实时仿真系统具有与实际系统的硬件接口，可以与实际控制器或电机系统直接相连，构成硬件在回路仿真测试或快速控制原型系统。实时仿真与真实系统实验结果表明，实时仿真器与实际系统的响应特性无明显差别，在开发和测试阶段可以代替实际电机系统进行实时闭环测试。

Real-Time Simulation of Brushless DC Motor Drive for Electric Vehicle

In order to reduce cost, risk and development time, the real-time simulator of electric vehicle system can be used for concurrent engineering. An implementation of the real-time model of brushless DC motor drive for the electric vehicle based on block-oriented programming tool Simulink is proposed. Also, by using dSPACE environment,the real-time code of controller and inverter-motor-sensor model is directly generated. Having the real-time hardware interface to actual system, the real-time simulation system can be directly connected to actual controller or real inverter-motor-sensor system for hardware-in-the-loop simulation test as well as for rapid control prototyping applications. Experimental results show that there is no remarkable difference between the responses of the real system and the real-time model, so the real-time simulation system can replace the real system in the development and test stages.