针对纯电动汽车对电机控制器的高功率密度需求设计了一款碳化硅控制器。阐述了该碳化硅控制器的总体电气原理设计方案，并对其结构、硬件、软件设计方案进行了详细的分析，提出了基于碳化硅MOSFET模块的碳化硅控制器设计方案，并针对该碳化硅控制器的散热效果进行了仿真研究。最后，对碳化硅控制器样机进行了台架测试验证，测试结果表明，所设计的碳化硅控制器具有良好的控制性能。

A silicon carbide (SiC) controller for high-power-density requirement of electric vehicles is developed. The overall principle diagram of electrical design is described. The structure, hardware and software schemes of the SiC controller are analyzed in detail. A design scheme of SiC controller based on the SiC MOSFET module is proposed. The thermal simulation of the SiC controller is carried out to study its heat dissipation effect. Finally, the bench test of the SiC controller prototype is carried out. The test results show that the SiC controller has good control performances.