Criteria to estimate the voltage unbalances due to high-speed railway demands

Author

Chen, Tsai-Hsiang

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Inst. of Technol., Taipei, Taiwan

Volume

9

Issue

3

fYear

1994

fDate

8/1/1994 12:00:00 AM

Firstpage

1672

Lastpage

1678

Abstract

This paper has presented simple criteria to estimate the voltage unbalances due to high-speed railway demands that are generally single-phase loads. Feeding traction loads from the public power system may lead to some voltage unbalance on the latter and consequently affect the operation of its energy supply system and other equipments connected with it. Three transformer connection schemes that are commonly used in power supply systems for high-speed railways are discussed and compared. The estimating criteria have been derived and represented by simple formulae that can be easily applied to evaluate this voltage unbalance. The results are of value to related engineers and consultants especially during periods of planning and design

Keywords

load (electric); power supplies to apparatus; power system stability; power transformers; railways; traction; design; high-speed railway; matrices; planning; public power system; single-phase loads; stability; traction; transformer connection schemes; voltage unbalances; Design engineering; Power engineering and energy; Power generation economics; Power system harmonics; Power system modeling; Power system planning; Power systems; Rail transportation; Railway engineering; Voltage;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/59.336089

Filename

336089