基于等效转动惯量的电动汽车测试平台

针对现有电动汽车电驱动系统测试平台采用机械飞轮惯量模拟汽车行驶惯量，存在体积大，不能连续调节等问题，设计一种能对电动汽车电驱动系统进行动态加载的测试平台。采用交流电力测功机系统，用电模拟惯量，实现道路负载模拟和车辆的惯性载荷模拟，并能将能量回馈至电网，减少能量损耗；并且优化了直流母线滤波电容和滤波电感参数的估算方法。仿真结果表明，该试验平台能较精确地进行动态加载模拟车辆的实际行驶工况。

Electric Vehicle Test Platform Based on the Equivalent Moment of Inertia

As the existing electric vehicle driving test bench adopts the mechanical flywheel inertia to simulate vehicle inertia, some problems exist in the current system, for example, large size, discontinuous regulation etc. Designs a kind of test bench which can dynamic load to EV driving system. By means of the AC electric dynamometer system and electrical inertia simulation technology, achieves road loading simulation and vehicle inertial load simulation, returns the energy to the grid and reduce energy loss, and optimizes the estimation methods of the DC bus filter capacitance and filter inductance parameters. The simulation results show that the test bench can be more accurate on dynamic loading and simulate the actual vehicle driving conditions.