Title :
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
fDate :
8/1/1994 12:00:00 AM
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;
Journal_Title :
Power Systems, IEEE Transactions on
