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unsymmetrical voltages
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  “unsymmetrical voltages”译为未确定词的双语例句
     A balance control method and signal detection needed for static var compensator (SVC) control under the conditions of symmetrical and unsymmetrical voltages or currents with or without distortions are described in this paper.
     本文探讨了静止无功补偿器 (SVC)在三相对称和不对称、电压电流波形有畸变情况下的平衡控制方法和控制信号检测的方法。
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  相似匹配句对
     Analysis of the Unsymmetrical Output Voltages Distortion Mechanism of Three-Phase Inverter and Its Corrections
     三相逆变器输出电压不平衡的产生机理分析及其矫正
短句来源
     Accurate detection for harmonics and reactive currents in the case of unsymmetrical three phase voltages
     三相电压不对称时谐波和无功电流的准确检测
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     Analysis of Unsymmetrical Winding
     不对称绕组的分析
短句来源
     The ARPES of HTSC is unsymmetrical.
     高温超导样品的ARPES实验谱是不对称的。
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     The voltages are realized by SVM-PWM.
     计算出的电压矢量由空间电压矢量脉宽调制方法实现。
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The correction of unsymmetrical voltage of 6~10kV network is theoretically investigated. The calculating method of correction circuit and related parameters is presented. The possibility to accomplish theunification of voltage correction with the compensation of power factor is theoretically expounded.

本文对6~10kV配电网电压不对称的校正问题进行了理论性的探讨,提出了校正电路和参数的计算方法。并在理论上阐述了电压校正和功率因数补偿两者统一实现的可能性。

The existing methods for detecting harmonic and reactive current are analyzed and a new speedy direct detecting method is brought forward. In this method, the PD negative feedback is proposed, which can compensate for the inherent delay of LPF and quicken the dynamic response speed evidently. Meanwhile this method has better detecting precision. Furthermore,it can also be applied to the unsymmetrical voltages. Finally,the effectiveness of this speedy direct detecting method is verified by MATLAB simulation....

The existing methods for detecting harmonic and reactive current are analyzed and a new speedy direct detecting method is brought forward. In this method, the PD negative feedback is proposed, which can compensate for the inherent delay of LPF and quicken the dynamic response speed evidently. Meanwhile this method has better detecting precision. Furthermore,it can also be applied to the unsymmetrical voltages. Finally,the effectiveness of this speedy direct detecting method is verified by MATLAB simulation.

分析了现有的谐波及无功电流检测方法 ,提出了一种快速的谐波及无功电流直接检测新方法。该直接检测方法引入比例微分环节 ( PD)作为负反馈 ,可以补偿滤波环节的延时 ,显著提高动态响应速度 ,并具有较好的检测精度。当电网电压不对称时该方法同样适用。最后 ,通过 MATLAB仿真 ,验证了快速直接检测方法的有效性

A novel unified power quality controller (UPQC) is proposed which consists of thyristor controlled capacitorbanks, serial active power filter and shunt active power filter. The fundamental frequency reactive power of the powersystem is compensated by thyristor controlled capacitor banks, the negative sequence current and harmonic current iscompensated by shunt active filter, the harmonic voltage and unsymmetrical voltage is compensated by serial active filter. To appraise the compensating effect...

A novel unified power quality controller (UPQC) is proposed which consists of thyristor controlled capacitorbanks, serial active power filter and shunt active power filter. The fundamental frequency reactive power of the powersystem is compensated by thyristor controlled capacitor banks, the negative sequence current and harmonic current iscompensated by shunt active filter, the harmonic voltage and unsymmetrical voltage is compensated by serial active filter. To appraise the compensating effect of UPQC a simulationmodel is established. The simulation results show that theproposed UPQC can offer satisfied compensation performance.

提出了一种新型的综合电能质量控制器(UPQC)。该控制器能满足大容量综合补偿的要求。该控制器由晶闸管投切的电容器组、串联有源电力滤波器和并联有源电力滤波器组成。并联电容器组补偿系统无功,并联滤波器补偿负序电流和谐波电流,串联滤波器补偿谐波电压和不对称电压。文中建立了仿真模型以检验UPQC的补偿效果。仿真结果表明,UPQC的补偿效果是比较理想的。

 
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