...电压闭环控制；功率因数闭环控制；三相不平衡控制 [gap=840]Key words: SVC;feedforward-feedback composite control;the voltage loop control;the power factor loop control;Three-phase Unbalanced Control ..
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The whole control unit is divided into the voltage loop control and the current loop control.
整个系统控制分为电压环控制和电流环滑模控制。
It is suitable for control weak voltage current signal in the frequency converter control loop.
主要用于变频器控制回路中微弱电压、电流信号的控制。
The adopted control mode of previous common frequency converter is usually of open loop constant voltage ratio, which its control curve is not stable.
早期通用变频器大多为开环恒压比的控制方式，控制曲线不稳定。
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