Voltage Stability Analysis and Online Monitoring Method Based on Fixed-Point Principle and Spectrum Calculation
Fan Li, Fang-zong Wang, Xue-tao Yang, Dun-wen Song
Available Online July 2019.
- https://doi.org/10.2991/eee-19.2019.2How to use a DOI?
- Voltage stability, Thévenin equivalent, Fixed-point principle, Spectral analysis method, Cholesky decomposition
- Accurate voltage stability analysis and online monitoring are essential to ensure a secure operation of the power system. To this end, researchers have proposed a variety of voltage stability indicators and analysis methods, of which, the voltage stability analysis method based on Thévenin equivalent has been widely concerned. However, due to the lack of simple and effective online identification method for Thévenin equivalent parameters, this method is still difficult to apply online. In this paper, the fixed point principle is applied to voltage stability analysis, and a new voltage stability criterion is proposed. Furthermore, in order to determine the physical correspondence between the spectral distribution and each specific load, this paper derives a numerical method for quickly estimating the spectral distribution. Based on the above, this paper proposes a new online analysis and monitoring method for voltage stability. The proposed method was tested on 3-machines and 10-bus system, and compared with the voltage stability analysis method based on Thévenin equivalent. The results show that the proposed method in this paper is effective.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Fan Li AU - Fang-zong Wang AU - Xue-tao Yang AU - Dun-wen Song PY - 2019/07 DA - 2019/07 TI - Voltage Stability Analysis and Online Monitoring Method Based on Fixed-Point Principle and Spectrum Calculation BT - 2nd International Conference on Electrical and Electronic Engineering (EEE 2019) PB - Atlantis Press SP - 5 EP - 14 SN - 2352-5401 UR - https://doi.org/10.2991/eee-19.2019.2 DO - https://doi.org/10.2991/eee-19.2019.2 ID - Li2019/07 ER -