Title :
Q impact of load characteristic on dynamic security region of power system
Author :
Cao, Zhenbo ; Xue, Ancheng ; Li, Jin ; Bi, Tianshu
Author_Institution :
Key Lab. of Power Syst. Protection & Dynamic Security Monitoring & Control, North China Electr. Power Univ., Beijing, China
Abstract :
DSR (dynamic security region) is one of the direct methods focusing on the transient stability of power system. This paper focuses on the DSRs of power system with different load models, and explores the characteristic of the DSRs of the power system with constant impedance load and motor load. It deduces the algorithm for DSR of power system described with differential algebraic equation, after introducing the theory of DSR for power system with network-reduction model. And then, it presents the mathematical models for the constant impedance load and motor load. Based on the simulation results, it presents the DSRs for the power system with respect to constant impedance load and motor load, respectively. And furthermore, it compares the characteristic of the DSRs of power system with different loads, and summarizes the impact of different loads characteristic on the DSR.
Keywords :
differential algebraic equations; power system security; power system transient stability; constant impedance load; differential algebraic equation; dynamic security region; impedance load; load characteristic; motor load; network reduction model; power system transient stability; Induction motors; Linear approximation; Power system dynamics; Power system stability; Stability analysis; constant impedance load; differential-algebraic equation; dynamic security region; motor load; transient stability;
Conference_Titel :
Power System Technology (POWERCON), 2010 International Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4244-5938-4
DOI :
10.1109/POWERCON.2010.5666383
