The zero cross point voltage comparing method (ZCPV method) developed by the authors can meet the above mentioned requirements.
文章作者研究开发的过零点电压比较法（ZCPV法）已能够满足这一要求。
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。
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。
At first, through analysis of the system performance and the mathematics matrix of STATCOM, we introduced the voltage of the point where STATCOM jointed in the system as state variable.
首先，通过对系统性能以及STATCOM数学模型的分析，对原有数学模型进行了数学推导引入了STATCOM接入点的电压偏差作为控制变量。
An analog maximum power point tracking (MPPT) controller integrated circuit (IC) based on open-circuit voltage method was proposed to enhance the photovoltaic conversion efficiency of solar cell.
为提高光伏电池的光电转换效率，设计一种基于开路电压法的光伏电池最大功率点跟踪(MPPT)控制芯片。
Voltage control the voltage control is a rheostat that sets the operating point of the voltage regulator and therefore controls the output voltage of the generator set, within its design limits.
电压控制电压控制是设定电压调整器的运行点从而在设计范围内控制发电机组的输出电压的变阻器。
Keep follow system with minimum voltage rotation from 000 degree to 360 degrees. Find the insensitive point.
保持随动系统以最低电压转动，在000 ~ 360度范围内找出不灵点。
When the input voltage is higher than the overvoltage set point of the machine, the machine immediately shut down, and then red light flashes.
当输入电压高于机器过压点的设置，机器立即关闭，然后红灯闪烁。
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。
For the voltage controlled system model, pole point method is taken to design the PID controller, and good result is achieved.
对于电压控制对象模型，采用极点配置的方法设计PID控制器，均取得了较为满意的控制效果。
This high voltage can initiate a second fault at the weakest insulation point in the system.
这高的电压能在系统中最弱的绝缘点开始一种第二种过失。
The maximum power point is the product of the maximum cell current and voltage where the power output of the cell is greatest.
最大功率点是最大电池电流和电压的乘积，这个位置的电池输出功率是最大的。
In the case of ideal operational amplifier, circuit analysis was simplified by the ideal summing point restraints of zero voltage and zero current at the inverting input.
对于理想的运算放大器而言，通过倒相输入处零电压和零电流的理想求和点限制，可以简化电路分析过程。
The principle, main design point and no load voltage ratio calculation method of resin insulation dry-type grounding transformer are introduced.
介绍了树脂绝缘干式接地变压器的工作原理、设计要点及空载电压比的计算方法。
The analysis indicated that SVC control could delay saddle-node bifurcation point and enhance voltage stability greatly.
研究表明SVC控制可以延迟系统鞍结分岔点，大大提高系统电压稳定性。
The influence of laser sampling, auxiliary spark discharge voltage, and electrode point gap on analytical results was examined.
考察了激光取样、辅助火花放电电压、电极尖端距离等条件变化时对分析结果的影响。
Under the condition of suitable formulation, the power system can be away from the voltage collapse point, through controlling the left eigenvector of voltage collapse point.
按照系统的鞍结分叉点处的左特征向量来控制系统的行为可以最快地远离电压崩溃点。
These years, more and more power researchers have realized that voltage stability in power systems is a dynamic phenomenon, and voltage collapse point is predicted in advance.
近些年，越来越多的人认识到电力系统电压稳定问题是一个动态问题，而电压崩溃点是可以提前预知的。
In recent years, more and more researchers have realized that voltage stability of power system is a dynamic phenomenon, and voltage collapse point can be predicted in advance.
近些年，越来越多的人认识到电力系统电压稳定问题是一个动态问题，而电压崩溃点是可以提前预知的。
Intelligent protection of the use of 12-24v car or ship power, the lamp has a protective voltage point, can effectively protect the damaged car battery due to over discharge.
智能保护使用12- 24v汽车或船舶电源时，该灯设有过放保护电压点，可有效保护因过放电而损坏汽车电池。
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。
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。
The stability of the AC MIG arc is closely related to the current before the polarity reversing point and voltage after that point.
指出交流MIG电弧稳定性与换向前的电流、换向后的电压有密切关系。
An identification and computation method of static voltage stability critical point by using the continuation method is presented.
提出了一种用连续潮流技术识别和计算电压崩溃临界点的方法。
The average value of voltage can be measured point by point.
电压的平均值可以逐点测量。
What is the voltage at point a? At point B?
此时在A点和B点的电压分别是多少？
Frequency spectrum analysis and the crossing point of voltage are adopted to control the corresponding filter branch switch.
采用了频谱分析法和电压过零点控制相应的滤波支路投入运行。
Frequency spectrum analysis and the crossing point of voltage are adopted to control the corresponding filter branch switch.
采用了频谱分析法和电压过零点控制相应的滤波支路投入运行。
应用推荐