永磁同步电动机直接转矩控制系统的研制

Study of Direct Torque Control of Permanent Magnet Synchronous Motor

对永磁同步电动机直接转矩控制运行机理进行了研究。在此基础上开发了一套基于TMS320LF2407的永磁同步电动机直接转矩控制交流调速系统。实验验证了该策略可用于永磁同步电动机控制,实验还表明永磁同步电动机直接转矩控制具有优良的转矩快速动态响应特性和对系统参数摄动、外干扰具有很强的鲁棒性等优点。实验系统安全可靠运行表明该调速系统具有优良的故障检测和保护功能,硬件设计思想合理。

Direct torque control （DTC） of permanent magnet synchronous motor （PMSM） was research, and a PMSM DTC system based on TMS320LF2407 was developed. Experimental results verified the feasibility of using DTC strategy on PMSM, and the merits of PMSM DTC including the rapid torque response, the good speed - adjustable performance, and the robustness to system parameters uncertainty and disturbance. The system operated well and successfully, which showed the speed -adjustable system had good competence in fault detection and protection.