Static Voltage Stability Analysis of Power System Using the Combination of P-V Curve and the Modal Analysis

DOI

10.2991/ipemec-15.2015.70How to use a DOI?

Keywords

Voltage Stability; P-V Curve; Modal Analysis; Weak Area

Abstract

Acorrding to the poor effect of traditional voltage stability method in the actual power network, a new method, combination of the P-V curve and modal analysis, was put forward. First, Kp(power reserve coefficient) was calculated to measure the power system static voltage stability margin through P-V curve. Then, on the basis of that, the modal method was used to get a detailed analysis. The participation factors under the minimum singular value of each node were calculated to find out the weak area, the key branch and key generators of the power system. These results may guide operators to note the weak areas, timely adjust the power flow, and arrange reactive power compensation and so on after a major disturbance. The study of a large power grid, with the help of the PSD-Vsap, a static voltage stability program, verifies the validity and practicability of the method.

Copyright

© 2015, 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/).

Download article (PDF)

TY  - CONF
AU  - Wang-Qing Mao
AU  - Qi Yang
AU  - Ming-Yu Yang
AU  - Shuang Zhang
AU  - Feng Gao
AU  - Yun-ting Song
PY  - 2015/05
DA  - 2015/05
TI  - Static Voltage Stability Analysis of Power System Using the Combination of P-V Curve and the Modal Analysis
BT  - Proceedings of the 2015 International Power, Electronics and Materials Engineering Conference
PB  - Atlantis Press
SP  - 361
EP  - 366
SN  - 2352-5401
UR  - https://doi.org/10.2991/ipemec-15.2015.70
DO  - 10.2991/ipemec-15.2015.70
ID  - Mao2015/05
ER  -