The voltage harmonic distortions are calculated.
计算了交流相电压谐波含量；
The voltage harmonic limits at the PCC where the tenants are connected should be relaxed in high-rise office buildings.
指出在高层办公楼中，租户接入配电网处的电压谐波限值应考虑适当放宽。
The current or voltage harmonic wave in power lines may cause abnormalities in self synchronization drive, computer, telephone, etc.
电力线路的电流、电压谐波效应可以引起自同步拖动、计算机、电话等异常运行。
After faults occur, different kinds of faults have different percentages of voltage harmonic signals which can be measured on busbar.
故障发生后，对于不同的故障性质，线路首端重合闸安装处的电压谐波含量是不同的。
Therefore, it is demonstrated that the shunt or series APF should be used for compensating the current or the voltage harmonic source.
从而说明对电流型或电压型谐波源进行谐波补偿，应该分别使用并联型或串联型apf。
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 series controller is equivalent to the controlled voltage source that compensating the voltage harmonic and the voltage fluctuation from the power system.
串联控制器等效为一个受控电压源，补偿来自电网侧的电压谐波和抑制电压波动，提高配电系统的供电电压质量；
The harmonic source can be classified into current harmonic source and voltage harmonic source on the basis of a transformer with a filter component on its DC side.
根据变流器直流侧滤波元件，将谐波源分成电流型和电压型谐波源。
At the same time the paper analyses the frequency spectrum of the wave from, and indicates the influence of voltage harmonic wave component on the steady state performance.
同时对波形进行了频谱分析，指出了电压谐波成分对双馈电机稳态性能的影响情况。
Through the calculation, the filters have been selected corresponding with voltage harmonic distortion standard. And the steady state rating of the parameters are calculated.
通过计算，选择符合电压谐波畸变标准的交流滤波器，并进行各元件的稳态额定值的计算。
Because of the pure resistive nature of the equivalent resistance of impedor, no harmonic will be generated during the voltage regulation.
由于阻抗器的等效电阻为纯电阻，因此在调整电压的过程中不会产生谐波。
The harmonic problems, such as distorting supply voltage, decreasing power factor, increasing energy loss, interfering with communication systems etc. are discussed in the part one.
第一部分讨论各种谐波问题，如使供电电压畸变，降低功率因数，增加能量损耗，干扰通讯系统等。
A new inverter output filter is presented. It can reduce efficiently the output voltage and current switching harmonic.
提出了一种新型三相逆变器输出滤波器，它能有效地减少输出电压和电流中的开关谐波分量。
This paper is focused on a shunt active filter based on detection of harmonic voltage to attenuate harmonic propagation in a power distribution network and its installation site selection.
本文着重论述了基于电压检测的并联型有源滤波器在放射状配电网谐波抑制中的应用及其安装点的选择。
After SVC was put into operation, power quality problem caused by harmonic current, voltage fluctuation and flicker has been solved.
SVC投入运行后，对非线性负荷产生的谐波电流，电压波动及闪变等引起供电电能质量的问题起到了很好的治理效果。
The power system harmonic is the voltage sine wave of power system get distortion; electric locomotive power will have 0 to 50 harmonics.
电力系统的谐波是电力系统电压正弦波形产生畸变，电力机车用电会产生0次到50次谐波。
It also introduces the error values of shockproof test, harmonic test, voltage and temperature test.
介绍了电度表的耐振试验、谐波试验、电压和温度试验的误差数据。
However, the utility source for a plant may contain additional harmonic voltage distortion arising from external sources.
然而，对工厂实用电源可能包括由外部电源引起的额外的谐波电压畸变量。
This paper presents a new method to obtain the sum of random harmonic vectors (voltage or current) whose phases have different probability distribution functions in a power system.
提出了一种处理电力系统中具有不同相角分布时随机谐波矢量(电压和电流)的求和问题的新方法。
Based on the test data of Suizhongbei electric traction substation, this paper analyzes the harmonic voltage problem.
本文根据测试数据对绥中北牵引变电所谐波电压问题进行分析。
Computer programs, which are used to analyze harmonics in a power system, will calculate the voltage distortion for given harmonic sources and a network configuration.
用计算机程序来分析功率系统的谐波，可以计算出给定谐波源和网络结构的电压畸变量。
The concept of power quality includes the quality of the supplying voltage with respect to, for instance, voltage sag, imbalance, harmonic distortion, voltage fluctuation and flicker, etc.
质量包括电源电压的质量的能力的概念与有关，例如，电压下跌，不平衡，谐波失真，电压波动并且摇曳，等等。
Furthermore, a checkout method for the third harmonic voltage based protection scheme of stator ground fault in generators is presented based on the verified MLM-FEM coupled model.
进而提出了基于多回路-有限元耦合数学模型的同步发电机定子单相接地故障三次谐波电压保护方案校验方法。
At present, our country power quality national standard was chiefly stipulated five quotas: frequency, harmonic and voltage deviation, three-phase unbalance and the voltage fluctuation and flicker.
目前我国电能质量国家标准主要规定了五个指标：频率、谐波、电压偏差、三相不平衡及电压波动与闪变。
Simulation and experimental results show that the proposed converter has sine wave input current and output voltage, low harmonic content, adjustable power factor, and zero voltage commutation.
仿真和实验结果表明：所提出的变换器输入电流和输出电压为正弦，谐波小且输入功率因数可控，并可实现零电压换流。
Simulation and experimental results show that the proposed converter has sine wave input current and output voltage, low harmonic content, adjustable power factor, and zero voltage commutation.
仿真和实验结果表明：所提出的变换器输入电流和输出电压为正弦，谐波小且输入功率因数可控，并可实现零电压换流。
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