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。
The power converters and other nonlinear loads "inject" the harmonic current into the power systems and cause a series of problems.
电力变流器和其他非线性负荷向电力系统“注入”谐波电流，引起一系列问题。
Active filters have been used to solve the problem of more and more serious reactive power and harmonic pollution to power systems.
有源滤波器在为解决日益严重的无功和谐波污染问题方面可发挥有效作用。
The harmonics generated by electronic equipment become the major harmonic sources in power systems.
电力电子装置产生的谐波已成为电力系统的主要谐波污染源。
In this paper the harmonic power flow of power systems with rectifier busses is studied.
文章讨论了具有整流负载时电力系统的谐波潮流计算方法。
The desirable scheme of capacitor placement in distribution systems aims at achieving voltage regulation and power loss reduction, while preventing harmonic resonance or magnification.
配电网合理的电容器配置不仅可以有效改善电网的电压水平，降低系统的有功网损，而且能够避免谐波谐振或电流放大。
Power electronics broad application in power systems brings serious harmonic pollution. This paper introduces harmonic harm, the measure of restraining harmonic and the basic principle of filter.
电力电子装置的广泛应用，给电力系统造成了一定的谐波污染，文中简要论述谐波的危害、谐波的治理措施及无源滤波器和有源滤波器的基本原理。
On the basis of active power filter linear shunt transformer harmonic impedance control, a novel principle for high voltage alternate power distribution systems is proposed.
针对高压交流配电系统，提出一种基于线性并联变压器谐波阻抗控制的并联型有源电力滤波器新原理。
PWM inverter AC motor bring the harmonic current, It pollute electric power systems.
PWM逆变器驱动电机时，对电源端产生谐波电流，给电力电网造成污染。
Phaseshifting reactor is a new method for converter power supply systems harmonic suppression.
移相电抗器是变流器供电系统谐波抑制的一种新方法。
Interharmonic is special harmonic in electric power systems.
间谐波是电力系统中一种特殊的谐波。
These disadvantages could be eliminated in three-phase systems if the energy account based on the integral of the active power of the positive sequence component with the fundamental harmonic.
在三相系统中，以正序基波功率的积分作为计量标准，同样可以消除这两方面的不利影响。
At last, harmonic suppression methods of converter power supply systems are discussed.
最后，论述了变流器供电系统的谐波抑制方法。
Controlling harmonic and compensating reactive power are important parts in power systems.
谐波的抑制以及无功功率补偿是电力系统的重要组成部分。
It is concluded that the harmonic amplification in power systems is effectively restrained by using mixed series reactors.
并得出结论：采用混合型串联电抗器可以有效抑制电网中各次谐波的放大。
Holbesun Electric gathered leading products, systems and solutions, is harmonic management, reactive compensation and power quality optimization area is the industry leader in professional supplier.
赫伯孙公司汇集了领先的产品、系统和解决方案，是谐波治理、无功补偿和电能质量优化领域具有行业领先地位的专业供应商。
According to the frequency excursion in power systems, this paper proposes a detecting method of harmonic negative current instructions.
针对电网出现的频率偏差，提出一种谐波负序电流指令的检测方法。
According to the frequency excursion in power systems, this paper proposes a detecting method of harmonic negative current instructions.
针对电网出现的频率偏差，提出一种谐波负序电流指令的检测方法。
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