Research on suppression of harmonic current for magnetic control reactor

Article type: Research Article

Authors: Xu, Xiangzheng

Affiliations: Department of Electronics Engineering, East China Jiao-tong University, Nanchang, Jiangxi, China. E-mail: ecjtuxxz@163.com

Abstract: In this paper, equivalent mathematical model is set up for a five-stage magnetic valve reactor. Equivalent magnetization curve of cores is deduced for a five-stage magnetically controlled reactor. On the basis of multistage magnetic valve reactor equivalent circuit equations, harmonic current expression is drawn for multistage magnetic valve reactor. And harmonic current of five-stage MCR is optimized. The simulation results show that the five-stage magnetically controlled reactor has better harmonic characteristics. Harmonic current maximum amplitude of 3rd, 5th and 7th does not exceed the rated fundamental wave current amplitude of 1.46%, 0.6%, 0.25% respectively. The per-unit total harmonic content is less than 1.5%. Five-stage MCR greatly reduces the every harmonic and total harmonic content.

Keywords: Power system, compensation equipment, magnetic control reactor, magnetization curve, harmonic current suppression

DOI: 10.3233/JCM-150573

Journal: Journal of Computational Methods in Sciences and Engineering, vol. 15, no. 4, pp. 773-781, 2015