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neutral point voltage     
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  中点电位
     High Performance Control Method With d-q Axis Decoupling and Neutral Point Voltage Regulation for Three-Level NPC Voltage-Source Rectifier
     基于d-q轴解耦和中点电位控制的高性能三电平NPC整流器控制方法
短句来源
     Control method for suppressing deviation of neutral point voltage in three-level inverter
     三电平逆变器中点电位偏移的抑制方法研究
短句来源
     The operating principle of three-level Neutral-Point-Clamped(NPC) Voltage Source Rectifier(VSR) is analyzed. Then a high performance control method with d-q axis decoupling and neutral point voltage control for the PWM rectifier is presented.
     分析了三电平中点箝位PWM整流器的工作原理,并提出了一种基于d,q轴解耦和中点电位控制的高性能三电平中点箝位PWM整流器控制方法。
短句来源
     The design of AC current controller and neutral point voltage controller is detailedly explained in principle and the system realization of software and hardware is presented.
     文中详细介绍了电流以及中点电位控制器的设计,并给出了控制系统的具体软硬件实现。
短句来源
     Control method and its simulation for suppressing deviation of neutral point voltage in 3 level inverter
     一种抑制三点式逆变器中点电位偏离的控制方法及其仿真
短句来源
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  中性点电压
     Study of the Relations Between Neutral Point Voltage and Waveform of Incoming Voltage in Transformer
     变压器中性点电压与首端电压波形关系的研究
短句来源
     This paper proposes a new strategy for balancing the neutral point voltage in the process of the three-level inverter vector controlling.
     本文主要研究三电平逆变器在电压空间矢量控制过程中中性点电压平衡的控制方法。
短句来源
     This text summarizes the protective zero terminating system of the electric equipments. While the load of the TN-C system is dissymmetry, by analyzing the neutral point voltage and comparing the neutral line current with the phase line current, this paper discusses the problems exist in the system and the corresponding replying measures. Finally, it analyzes several problems that should be noticed in the TN system.
     通过对电气设备保护接零系统的概述,在TN-C系统负载不对称时,通过对中性点电压的分析及中性线电流与相线电流的比较,讨论了该系统存在的问题以及应对措施,最后分析了在TN系统中应注意的几个问题。
短句来源
  中性点电压平衡
     This paper proposes a new strategy for balancing the neutral point voltage in the process of the three-level inverter vector controlling.
     本文主要研究三电平逆变器在电压空间矢量控制过程中中性点电压平衡的控制方法。
短句来源
  “neutral point voltage”译为未确定词的双语例句
     Finally, a SVPWM control strategy, which can balance the neutral point voltage by changing the control factor on the basis of judging the DC Voltage of two capacitors and the directions of three phase output current, is presented.
     最后提出了一种基于检测直流侧电压和三相输出电流合理选择控制因子的滞环SVPWM方法。
短句来源
     Two kinds of methods of the zero-crossing of back-EMF sensing are analyzed,and the mothod of direct back-EMF is adopted to design the zero-crossing of back-EMF sensing circuit in which the motor neutral point voltage information isn’t needed.
     深入研究了两种反电势过零检测方法,采用“直接反电势法”设计了反电势过零检测电路。
短句来源
     Based on the theory that neutral point deviates when single phase-to-ground and double phase-to-ground insulation faults occur in floating ground power system,the relations between the faulty phase and the amplitude and phase of neutral point voltage to ground(UNN')are established. A method to locate insulation fault phase using the phase angle and amplitude of UNN'is propo-sed. An insulation fault phase locator based on MCS-51is designed.
     根据交流浮地电网发生单相、两相绝缘故障时系统中性点偏移的理论,得到了中性点对地电压UNN'的幅值、相位与故障相的关系,从而提出了仅利用UNN'的两个特征量(幅值和相位)判断绝缘故障相的方法,并设计了基于MCS-51单片机的绝缘故障相定位装置。
短句来源
     The neutral point potential stability is realized by detecting the direction of load current and neutral point voltage and designing reasonable duty time of positive and negative space vectors.
     通过检测负载电流方向和直流电容的电压,合理分配正负小矢量对的作用时间,实现了电容电压的平衡。
短句来源
     The proper switching sequence is se-lected to keep the neutral point voltage balance. The simulation and experimentation results verify the validity of the pro-posed algorithm.
     利用提出的简化算法对一个三电平逆变器进行了仿真和实验,仿真和实验结果验证了算法的正确性。
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  neutral point voltage
In this case an easy way to balance neutral point voltage can also be achieved.
      
Finally, Figures 12 and 13 show the simulation result of the neutral point voltage control strategy.
      


This paper used analytical formulare,vector diagram,variable curues reflected variable law of three phases VS earth voltge,and neutral point voltage with single phase earthed resistor when single phase ground.Offered a new critical method of the grounded phaccd and are presented its aplication of the network operation

用解析式、相量图、变化曲线反映了单相接地时电网三相对地电压、中性点电压随单相接地电阻的变化规律,提出新的判断接地相的方法,并指出其在电网运行中的一些实际用途.

Working principle of the 3 level inverter as well as the principle and method to suppress deviation of its neutral point voltage are described. Simulation is done for the variable frequency speed control system of asynchronous motor. The simulation waveform is also presented.

阐述了三点式逆变器的工作原理及抑制其中点电位偏离的原理与方法,对异步电机变频调速系统进行了仿真,并给出了仿真波形

In this paper,the basic principle of 3_level voltage source inverter is described.The voltage space vector control method is analyzed.The experimental results are presented.The method for restraining the deviation of neutral point voltage is expatiated.And the simulation waveform is presented.

介绍了三点式电压型逆变器基本工作原理 ,分析了电压空间矢量控制方法 ,给出了实验波形 ,阐述了抑制中点电位偏移的控制方法 ,并给出了仿真结果 .

 
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