The neutral-point voltage fluctuation of three-level converter is only related to applied modulation method and three-phase current.
三电平变流器的中点电压波动只与变流器采用的调制技术和三相电流有关。
Through deduction and analysis, the conclusion can be made: low reactance at the neutral point of transformer has little effect on the switching over-voltage in power systems.
通过计算和分析表明：变压器中性点接入小电抗对系统的操作过电压基本不会产生影响。
A method of keeping neutral point potential balanced based on three-level SPWM had been brought forward, which can improve output waveform and decrease the possibility of IGCT's over-voltage.
提出了一种基于三电平spwm调制的中点电压抑制方法，在改善输出波形质量的同时，有效的降低了IGCT过电压的危险。
This generator employs three phrase star connections with neutral point, the wire voltage is 400v and the phrase voltage is 230v.
本系列发电机为三相带有中性点的星形接法，线电压为400v，相电压为230v。
The on-site test results indicate that energy meter's neutral point virtual connection has a great effect on PT secondary voltage drop.
基于对称分量法，对电能表中性点虚接后的电压互感器二次压降进行了分析，得出了正确接线前后的计量误差变化量。
The selection of shunt reactor parameters and the most withstand voltage calculation of neutral point small reactor are discussed for different compensation modes.
给出了各种补偿方式下并联电抗器参数选择方法和中性点小电抗的最大耐受电压计算方法。
In distributions, because of its low-level voltage, its neutral point used to disconnect to the ground in order to improve its reliability.
城市配电网因为其电压等级较低，为了提高系统供电的可靠性，曾广泛采用中性点不接地系统方式。
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。
The problem of neutral-point balance is resolved by changing the amplitude of current reference according to the voltage error of two capacitors.
通过两输出电容电压的偏差改变电流参考给定来实现整流器输出中点平衡。
The recent developments of neutral point ground modes of medium-voltage power network and variety of national related standards are presented.
阐述了中压电网中性点接地方式的近况，国家有关标准的变化，企业应从中吸取有益的东西。
This paper analyzes the neutral point shift of the three-phase voltage regulator used in the experiments.
本文探讨了三相调压器在实验中出现的中性点位移的问题。
A dynamic hysteresis-band current PWM control arithmetic is also designed to control the voltage of the DC bus, which keeps it steady effectively for the voltage of the neutral point of the DC bus.
设计了动态电流滞环pwm控制算法对直流侧电压进行控制，有效地保证了直流侧中点电位的平衡。
In both of the cases above, the shift voltage of neutral point often appears. So one does not differ from the other easily, especially for the fundamental frequency ferro-resonance.
且由于二者往往均表现为中性点出现位移电压，尤其是基波谐振更不易与单相接地区分。
Meanwhile, the topology has voltage-self-balance ability, and therefore, no additional neutral-point-potential balancing circuit is needed.
同时，该拓扑具有电压自平衡能力，无需额外的中点电位平衡电路。
Meanwhile, the topology has voltage-self-balance ability, and therefore, no additional neutral-point-potential balancing circuit is needed.
同时，该拓扑具有电压自平衡能力，无需额外的中点电位平衡电路。
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