The harmonic comes from power system side, which is caused mainly by exciting current of the large capacity transformer besides the nonlinear loads.
认为谐波源来自系统侧，除了非线性负荷外，主要是由大型电力变压器激磁电流所造成。
In a practical circuit, the series APF can compensate a high capacity voltage harmonic source load or several low capacity voltage harmonic source loads.
在实际应用中，串联型APF既能对单个大容量电压型谐波源负载进行补偿，也能对多个小容量电压型谐波源负载进行集中补偿。
The system can measure the harmonic in HV power network, and avoid the problem of harmonic measure signal distortion caused by capacity type voltage transformer (CVT).
应用该测量系统测试高压电网中的谐波，可以避免因高压电网中取自电容式电压互感器（CVT）的谐波测量信号失真的问题。
HRPHC has the advantages of both APF and RPC, which are higher accuracy and larger capacity and being able to compensate reactive and harmonic currents smoothly.
HRPHC具有有源电力滤波器(APF)和无源电力滤波器(PF)两者的优点，有补偿速度快、精度高、容量大的特点。
An active power filter based on harmonic current compensation of the transformer is proposed for high voltage large capacity application.
提出一种新型的基于变压器谐波电流补偿的高压大容量有源电力滤波器。
The selection of harmonic inspection and control method for active filter and certainty of last added compensation capacity and quality factor were expounded.
阐述了有源滤波部分谐波检测与控制方案的选取、新增补偿容量与品质因数的确定。
It is available for specifying the harmonic emission (voltage or current) limits from distorting loads concerned with the capacity, operation and harmonic nature.
该方法适合对容量、负荷工作特性和谐波发射特性不同的负荷谐波(电压和电流)限值的确定。
In the design of current-mode PWM DC-DC converters, the slope compensation method widely used to prevent sub-harmonic oscillation can significantly weaken the load capacity under a high duty cycle.
电流模pwm集成dc - DC变换器设计中，为了防止亚谐波振荡而普遍采用的斜坡补偿，会在占空比较大时严重影响芯片的带载能力。
Power Supply System is often placed with shunt compensation capacitors and the upper harmonic waves in the distribution network have much influence on the capacity.
供配电系统通常接有并联补偿电容器，配电网中的高次谐波对电容的影响很大。
Along with the increase of high-capacity loads' impact and electricity grid connection of a large number of power electronic devices, the complexity of power system harmonic components increases.
随着大容量冲击性负荷的增加以及大量电力电子设备接入电网，电力系统谐波成分的复杂性也随之增加，对电网了造成严重污染。
On the basis of the study, a prototype of 150kva capacity has been built, and the control occurred of voltage sag and harmonic have been achieved using this prototype as a platform.
在研究的基础上搭建了一台容量为150kva的样机，以此样机为平台实现了对电压暂降、谐波发生的控制。
The large capacity generator reconstructed is imported and its3rd harmonic voltage is low.
要改造的发电机是进口的，且容量大，运行时三次谐波电压很小。
The mechanism of harmonic increments caused by power device forward voltage drop and DC-link capacity voltage variety are analyzed in detail, and the compensation algorithm are proposed.
对由励磁电源管压降所产生的谐波和变频器直流电容电压波动的问题进行了详细的分析并提出了改进方法。
The mechanism of harmonic increments caused by power device forward voltage drop and DC-link capacity voltage variety are analyzed in detail, and the compensation algorithm are proposed.
对由励磁电源管压降所产生的谐波和变频器直流电容电压波动的问题进行了详细的分析并提出了改进方法。
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