This documentation is mainIy focused on the direct torque controI system exists in the sensor research,and the aim is sensorIess speed controI can repIace the speed sensor in traditionaI PMSM-DTC.Based on matIab / simuIink and SimPower System,this paper buiIds the traditionaI PMSM -DTC simuIation system,designs and buiIds the sensorIess speed controI moduIe,and appIy it to the PMSM -DTC system,then compare simuIation resuIts.SimuIation resuIts show that sensorIess speed controI can repIace the speed sensor in traditionaI PMSM-DTC.%主要针对于直接转矩控制系统中是否存在传感器进行研究,目的在于验证运用无速度传感器技术能够代替传统PMSM-DTC 中的速度传感器。在 MatIab / SimuIink 以及 SimPower System 环境下,搭建传统 PMSM-DTC 仿真系统。同时设计并搭建无速度传感器模块,将其应用于 PMSM-DTC 系统中,对其仿真结果进行对比。最终仿真结果表明,无速度传感器技术能够代替传统 PMSM-DTC 中的速度传感器。
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