harmonic current constant 中文意思是什麼
harmonic current constant
解釋
諧調潮流常數-
This paper focuses on the control strategies to improve the performance of the three - phase ac - dc pwm voltage - source - converters ( vsr ) under unbalanced power supply. the problems such as negative sequences current, voltage and current harmonics and un - constant ( un - smooth ) power flow from ac to dc side are discussed in this paper. the analytical solutions for negative sequence current and harmonic current elimination are obtained by fully feed - forward of negative sequence voltage and producing a non - harmonic current command of the inner - loop
電網不平衡時,基於電網平衡為約束條件設計的三相vsr將出現不正常運行狀態,比如三相vsr交流電流中出現負序分量,使交流電流嚴重不對稱;直流電壓和交流電流中出現非特徵諧波分量,使直流電壓和交流電流波形發生嚴重畸變;三相vsr從電網吸收不平衡的瞬時功率等一系列問題。 -
The conventional rectifiers produce harmonic problem in power system. while three - phase pwm voltage source rectifiers ( vsr ) can provide constant dc bus voltage and get low harmonic distortion of input current. it also has line power feedback capability
傳統的整流裝置是電網污染的主要來源,三相電壓型pwm整流器具有輸出電壓恆定、能實現單位功率因數運行的特點,甚至可以實現電能回饋電網。
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