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A Study of Active Power Filters Applying Space Vectors and their Compensation Algorithm

应用空间矢量的有源电力滤波器及其补偿算法的研究

基本信息

批准号：
60460115
负责人：
NABAE Akira
金额：
$ 0.38万
依托单位：
The Technological University of Nagaoka
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1985
资助国家：
日本
起止时间：
1985 至 1986
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-60460115/
关键词：
Active power filter Voltage-source PWM converter Space vector Passive power filter Instantaneous active power 瞬時無効電力

项目摘要

In recent years, active power filters have been studied and developed to suppress harmonics generated by static power converters. Notably, attention has been paid to the active power filter using switching devices such as power transistors and gate-turn-off thyristors, which have made remarkable progress in capacity and switching performance.In this study, the compensation algorithm of the active power filter is proposed on the basis of the instantaneous reactive power applying space vector theory. This is quite different in principle from the conventional compensation algorithm, thus giving better compensation characteristics in transient states. An experimental active power filter was constructed, of rating 7kVA. The power circuit consisted of quad-series voltage source PWM converters using 24 power transistors. The main purpose of the mutiple converters was to suppress the harmonics caused by the switching operation without increasing the switching frequency.The validity of the active power filter was comfirmed experimentally. A three-phase thyristor bridge converter of rating 20kVA was used as an example of harmonic current generators. It was verified that the harmonic current can be fully eliminated not only in steady state but also in transient states, applying the compensation algorithm developed in this theory. The total efficiency of the active power filter was 90-92 percent, including the loss of the multiple converters.

近年来，有源电力滤波器已经被研究和开发以抑制由静态电力变换器产生的谐波。特别是采用功率晶体管和门极可关断晶闸管等开关器件的有源电力滤波器，在容量和开关性能方面都取得了显著的进步，本文基于瞬时无功功率，应用空间矢量理论，提出了有源电力滤波器的补偿算法。这在原理上与传统的补偿算法有很大的不同，从而在瞬态中给出了更好的补偿特性。实验有源电力滤波器的额定值为7 kVA。功率电路由四串联电压源PWM变换器组成，使用24个功率晶体管。在不提高开关频率的情况下，多个变流器的主要目的是抑制开关操作引起的谐波，实验验证了有源电力滤波器的有效性。以额定值为20 kVA的三相晶闸管桥式变流器为例，介绍了谐波电流发生器的工作原理。结果表明，该补偿算法不仅在稳态时，而且在暂态时都能完全消除谐波电流。有源电力滤波器的总效率为90- 92%，包括多个变换器的损耗。