基于SVPWM的永磁同步电机直接转矩控制系统框图如图1所示，其中参考电压空间矢量估计器和SVPWM 单元替代了传统控制方式中的定子磁链、电磁转矩滞环控制环节和开关表。-lux and the electromagnetic torque.Secondly, the paper introduces direct torque control of permanent magnet synchronous motor SVPWM technology.Under the same　hardware conditions,the system can obtain More continuous voltage space vector by taking advantage of SVPWM