A Harmonic Detection Strategy Based on FBD Power Theory

2019 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2019-12-01 DOI:10.1109/APPEEC45492.2019.8994402

Dong Wang, Li Zhang, Chong Wang, Shengchao Liu, Qi Liu

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引用次数: 2

Abstract

The stability, safety and economic operation of the power system are threated by harmonic pollution. Moreover, a series of harmonic currents and unbalanced load currents are affecting the power quality seriously. The active power filter is mainly used to compensate the harmonic current. However, the compensation effect is affected by the dynamic response speed of harmonic current detection. In this paper, the FBD(Fryze-Buchholz-Dpenbrock) theory and its derived harmonic detection method, and the deficiency in dynamic response of the low-pass filter and the Moving Average Filter (MAF) are introduced and analysied, respectivly. Then, an improved Generalized Moving Average Filter (GMAF) is proposed to improve the dynamic response speed of harmonic detection. Finally, based on FBD power theory, a single-phase and three-phase simulation model is built in MATLAB/Simulink, and the simulation results of two methods under steady state and load current mutation are given, and the characteristics of GMAF’s dynamic response speed are verified.

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谐波污染严重威胁着电力系统的稳定、安全、经济运行。此外，一系列谐波电流和负载不平衡电流严重影响着电能质量。有源电力滤波器主要用于补偿谐波电流。但补偿效果受谐波电流检测动态响应速度的影响。本文分别介绍和分析了FBD(fryze - buchholz - penbrock)理论及其衍生的谐波检测方法，以及低通滤波器和移动平均滤波器在动态响应方面的不足。然后，提出了一种改进的广义移动平均滤波器(GMAF)，以提高谐波检测的动态响应速度。最后，基于FBD功率理论，在MATLAB/Simulink中建立了单相和三相仿真模型，给出了两种方法在稳态和负载电流突变下的仿真结果，验证了GMAF的动态响应速度特性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2019 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)

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