直接转矩控制(DTC) 是继矢量控制后的一种高性能控制方法。文中提出了一种基于TM S320C32 DSP 的直接转矩控制系统实现方案, 通过硬件和软件设计, 实现了无速度传感器的异步电动机的直接转矩控制。实验结果表明, 该方案的可行性。 关键词: 直接转矩控制; 无速度传感器; 异步电动机; 硬件; 软件 Abstract:D irect to rque cont ro l (DTC) is a h igh perfo rmance cont ro l method after vecto r cont ro l. A DTC scheme based on TM S320C32 digital signal p rocesso r is int roduced. By the design of its hardw are and softw are, the speed senso rless direct to rque cont ro l fo r asynch ronousmo to r is imp lemented. The experiment results show the scheme is reliable. Key words: direct to rque cont ro l; speed senso rless; hardw are; softw are