It also includes, Hall element inputs, a sequencer for commutation control, fixed off time pulse width modulation (PWM) current control and locked rotor protection.
它还包括霍尔元件输入、整流控制定序器、固定停机时间脉冲宽度调制(PWM)电流控制以及锁定转子保护。
This scheme is based on the rotor flux, through the fixed switching frequency and using space vector modulation (SVPWM) method vector control.
本文方案是基于转子磁链定向、通过固定开关频率、运用空间矢量调制(SVPWM)方法的矢量控制。
Voltage waves are deduces on lower bridge arm PWM modulation and theory of rotor position detection based on EMF is introduced.
分析了下桥臂调制方式下绕组端电压波形，并基于此介绍了反电势法检测转子位置原理。
Using the controller or the magnetic force, this string resistance velocity modulation way goes on by combining various different resistance in the same rotor way.
这种串电阻调速方式，利用控制器或磁力站对串入转子电路中不同阻值的电阻进行组合，达到调速目的。
The paper introduces the principle and the math models of asynchronous modulation system by voltage model rotor magnetic chain vector control.
针对感应电机无速度传感器磁场定向控制系统，提出一种基于电压模型的改进转子磁链观测方法。
The paper introduces the principle and the math models of asynchronous modulation system by voltage model rotor magnetic chain vector control.
针对感应电机无速度传感器磁场定向控制系统，提出一种基于电压模型的改进转子磁链观测方法。
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