Title :
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
fDate :
5/1/1997 12:00:00 AM
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;
Journal_Title :
Power Systems, IEEE Transactions on
