Understanding transients: a conceptual interpretation

Author

Wang, Zhang ; Fan, Ji-Yuan ; Shao, Yu-Huai

Author_Institution

Dept. of Electr. Eng., Taiyuan Univ. of Technol., China

Volume

12

Issue

2

fYear

1997

fDate

5/1/1997 12:00:00 AM

Firstpage

521

Lastpage

526

Abstract

This paper provides a conceptual interpretation and a complementary understanding about power system transients through qualitative analysis. It introduces a few intuitive concepts by analyzing the transients of a two-winding transformer and a synchronous generator under a short circuit condition. A 90°-lagging rule of thumb is also introduced to describe the d- and q-axes voltage equations of a synchronous generator. Using the introduced concepts, the transient mechanism can be well understood with clear physical meanings of every term, including the various time constants, in the solution formulas

Keywords

machine theory; power system transients; power transformers; short-circuit currents; synchronous generators; transient analysis; 90°-lagging rule of thumb; conceptual interpretation; d-axis voltage equations; intuitive concepts; power system transients; q-axis voltage equations; qualitative analysis; short circuit condition; synchronous generator; time constants; two-winding transformer; Circuits; Differential equations; Power engineering and energy; Power system analysis computing; Power system dynamics; Power system transients; Steady-state; Synchronous generators; Thumb; Transient analysis;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/59.589591

Filename

589591