This thesis focuses on the difficulties of motor harmonics and heating in the frequency conversion timing process.
主要研究了变频调速过程中电机谐波和发热的难点问题。
参考来源 - 基于小波分析的优化PWM逆变系统控制The SPWM technique is used in the AC frequency conversion timing.
交流变频调速采用正弦波脉宽调制(SPWM)技术。
参考来源 - 集装箱轮胎吊电气控制系统模拟器设计·2,447,543篇论文数据，部分数据来源于NoteExpress
Our machine running rate use frequency conversion timing.
全机机速采用变频调速。
The technology of frequency conversion timing and soft start should be widely applied.
指出变频调速和软启动技术应该大力推广应用。
The DSP processor was adopted to realize the permanent magnetic synchronism motor frequency conversion timing system.
采用DSP处理器实现永磁同步电机变频调速系统。
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