A novel control strategy for optimization of power capacity based on railway power static conditioner

Author

Wei, Yingdong ; Jiang, Qirong ; Zhang, Xiujuan

Author_Institution

Dept. of Electr. Eng., Tsinghua Univ. Beijing, Beijing

fYear

2008

fDate

24-28 Feb. 2008

Firstpage

1669

Lastpage

1674

Abstract

The railway static power conditioner (RPC) is used to compensate negative phase sequence (NPS) current, reactive current and harmonic current in electric railway. This paper, based on the decoupling of NPS current and reactive current, presents a novel control strategy which makes the PRC achieve flexible compensation targets for three-phase voltage unbalance and power factor drop in accordance with the corresponding power quality standards in railway. An optimum algorithm based on reactive current priority compensation control strategy is proposed to realize the optimal utilization of the power capacity of PRC. In the following part of the paper, the theoretical analysis is provided and the optimum compensation performance is verified by the simulation results in various track loads conditions.

Keywords

compensation; electric current control; power factor; power supply quality; railway electrification; harmonic current; negative phase sequence current; power capacity optimization; power factor drop; power quality standards; railway power static conditioner; reactive current priority compensation control; three-phase voltage unbalance; Analytical models; Impedance matching; Partial response channels; Performance analysis; Power quality; Power system harmonics; Rail transportation; Reactive power; Transformers; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2008. APEC 2008. Twenty-Third Annual IEEE

Conference_Location

Austin, TX

ISSN

1048-2334

Print_ISBN

978-1-4244-1873-2

Electronic_ISBN

1048-2334

Type

conf

DOI

10.1109/APEC.2008.4522950

Filename

4522950