PMU-based model-free approach for short term voltage stability monitoring

Autor:	Umesh Vaidya, Magesh Paramasivam, Venkataramana Ajjarapu, Sambarta Dasgupta
Rok vydání:	2012
Předmět:	Engineering business.industry Phasor Voltage regulator Lyapunov exponent Dynamical system Stability (probability) Electric power system symbols.namesake Power system simulation Computer Science::Systems and Control Control theory symbols business Voltage
Zdroj:	2012 IEEE Power and Energy Society General Meeting.
DOI:	10.1109/pesgm.2012.6345522
Popis:	In this paper, we propose a model-free approach for short term voltage stability monitoring of power system. Our data-driven approach makes use of Phasor Measurement Units (PMU) data to generate the stability certificate for verifying the voltage stability. We employ Lyapunov exponent, a stability tool adapted from ergodic theory of dynamical system, to generate the stability certificate. The time-series voltage data from PMU is used for the online computation of Lyapunov exponent. The proposed method can not only be used to determine the voltage stability of the entire system but can also be used to determine stability/instability contribution of individual buses to the overall system stability. Simulation results are presented on WSCC nine bus system using different load models.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7a88fa77e14c6e48f836f725eacd0ced https://doi.org/10.1109/pesgm.2012.6345522 Zobrazit plný text záznamu