Title: Improvement and analysis on the experiment of the third harmonic suppression in the low-voltage distribution power network

Authors: Jian-Dong Liu; Xin-Quan Zhu; Zhan-Hong Wei; Ye-Quan Wang; Yi-Hong He

Addresses: Beijing Institute of Petrochemical Technology, Beijing 102617, China ' State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, China ' Beijing Institute of Petrochemical Technology, Beijing 102617, China ' Henan Optical Group Co Ltd., Nanyang 473000, China ' Beijing Institute of Petrochemical Technology, Beijing 102617, China

Abstract: In order to deal with the problem of the growing of harmonic amount in low-voltage distribution power networks, this paper takes a 315KVA transformer distribution network to design an experimental scheme for retraining the third harmonic amount in a three-phase four-wire system. The scheme can limit the third harmonic under the condition of three-phase four-wire system and measure the impact of the limitation on current, voltage, current distortion rate, active power and distortion power. Experimental results show that limiting the third harmonic current can notably reduce the distortion power of low-voltage distribution power system, thus the electricity quality is improved, but there's no significant power saving effect.

Keywords: third harmonic; neutral harmonic filter; harmonic suppression; power saving; power quality.

DOI: 10.1504/IJWMC.2017.088081

International Journal of Wireless and Mobile Computing, 2017 Vol.13 No.2, pp.114 - 121

Received: 24 Jan 2017
Accepted: 01 May 2017

Published online: 20 Nov 2017 *

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