Transient Stability Analysis of Power System Using Improved Least Square Method and Energy Function

DOI

10.2991/eeic-13.2013.79How to use a DOI?

Keywords

power system; wide-area measurement system; parameter identification; energy function; transient stability analysis

Abstract

The wide application of WAMS (Wide Area Measurement System) provided a new thinking for transient stability analysis of power system. Based on real-time measurement information from WAMS, a method to quickly analysis power system transient stability that does not depend on network structure, model and parameters of power system is proposed in this paper. Firstly, the parameters of system are identified online by improved least squares method on basis of that the multi-machine power system is equivalently reduction to one machine infinity bus system. The equilibrium point and stability margin of equivalent system are rapidly computed, and then the stability of system is quickly judged. The simulation results show that the algorithm can accurately judge transient stability of system and has better anti-disturbance ability and robustness. The issue of dependence of transient stability analysis on system model and parameter is solved. The adverse influences of data lose and measurement errors in actual measurement of the WAMS on analysis results are avoided effectively.

Copyright

© 2013, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Dongrong Jiang
AU  - Zhao Li
AU  - Lian Zhang
PY  - 2013/12
DA  - 2013/12
TI  - Transient Stability Analysis of Power System Using Improved Least Square Method and Energy Function
BT  - Proceedings of the 3rd International Conference on Electric and Electronics
PB  - Atlantis Press
SP  - 337
EP  - 340
SN  - 1951-6851
UR  - https://doi.org/10.2991/eeic-13.2013.79
DO  - 10.2991/eeic-13.2013.79
ID  - Jiang2013/12
ER  -