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Study of Reduction Method of Harmonic Currents in Power Systems Generated by Switching Regulators

减少电力系统中开关调节器产生的谐波电流方法的研究

基本信息

批准号：
13650321
负责人：
MATSUI Keiju
金额：
$ 2.11万
依托单位：
Chubu University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2002
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13650321/
关键词：
harmonic switching regulator power system harmonic elimination reduction method harmonic current fifth order harmonic harmonic cancel スイッチング電源分散相互干渉低次高調波入力コンデンサ

项目摘要

For rectifier circuits with small capacity such as those for consumer electronics and appliances, capacitor input type rectifier circuits are generally used. It is well known that the generation of the harmonics in the power system becomes a social problem. For such power supply, various switching regulators with capacitor input rectifiers have become more common, typically for the television set. Consequently, as the application of those equipment is expanded, various harmonics are much generated in the power system. The harmonics problem will become more serious in the future. Such equipment will be more used similarly in industrial applications.Under such circumstances, various improved circuits to reduce harmonics have been studied and reported. However, their purposes are intended to make the input current waveform sinusoidal, thereby increasing the cost. The harmonics generated by the capacitor input type rectifier circuit, except the third and fifth harmonics, do not increase in proportion to the number of the equipment in the power system, and are kept constant a certain value. Considering that the third harmonics eliminated by the transformer of the power system and the cost is high for sinusoidalizing the input current, we need not persist on making the input current sinusoida 1wave.From such point of view, we have studied a method to reduce the harmonics for the rectifier circuit of the forward converter, which is more used in a variety switching regulators. The proposed switching regulators do not only reduce their own harmonics but also eliminate other harmonics in the power system which are generated by other rectifier circuits. The authors have reported various harmonic eliminating techniques to reduce the harmonics in the power system in various periodicals.

对于具有小容量的整流电路，例如用于消费电子产品和电器的整流电路，通常使用电容器输入型整流电路。众所周知，电力系统中谐波的产生已成为一个社会问题。对于这样的电源，具有电容器输入整流器的各种开关调节器已经变得更加普遍，通常用于电视机。因此，随着这些设备的应用范围的扩大，在电力系统中产生了大量的各种谐波。谐波问题将在未来变得更加严重。在这种情况下，各种降低谐波的改进电路已被研究和报道。然而，它们的目的是使输入电流波形正弦化，从而增加了成本。电容输入型整流电路产生的谐波，除三次和五次谐波外，不随电力系统中设备的数量成比例增加，并保持恒定的某一值。考虑到电力系统中的三次谐波由Transformer消除，而将输入电流正弦化成本较高，因此不必坚持将输入电流正弦化，从这一角度出发，研究了一种在各种开关稳压器中应用较多的正激变换器整流电路的谐波抑制方法。建议的开关稳压器不仅减少自己的谐波，但也消除了其他整流电路产生的电力系统中的其他谐波。作者在各种期刊上报道了各种谐波抑制技术，以减少电力系统中的谐波。