上海交通大学硕士学位论文 – 18 – 2.1.4 变频变压(VVVF)算法 VVVF(Variable Voltage Variable Frequency)是把每一脉冲的宽度均相等的脉冲 列作为 PWM 波，通过改变脉冲列的周期可以调频...
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论交流变频调速系统_论文格式网 关键词 ：异步电动机；变压调速；变频变压 [gap=747]Key words: Asynchronous motor； live pressure velocity modulation；frequency conversion live pressure
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依据交流电机的控制策略，提出了适用于电动汽车交流电动机控制的变频变压调速和矢量控制两种控制的实现方法。
According to the control strategy of ac motors, the two control means put forward to be applicable to electric vehicle about VVVF and space vector.
介绍一种采用低压电压型变频器、正弦波滤波器和变频升压变压器构成的低-高式中压变频控制系统。
A kind of medium voltage AC variable frequency control system, which consists of voltage source inverter, sinuous filter and stepup transformer with variable frequency, is introduced.
数控机床的转速调整，目前越来越多地应用了变压变频技术来实现。
NC machine speed adjustment, and more and more application of the VVVF technology to achieve.
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