Phasor-Measurement-Based State Estimation for Synchrophasor Data Quality Improvement and Power Transfer Interface Monitoring

Autor:	Joe H. Chow, Brent Blanchard, Deepak Maragal, George Stefopoulos, Bruce Fardanesh, Scott G. Ghiocel, Michael Razanousky, David B. Bertagnolli
Rok vydání:	2014
Předmět:	Engineering Data consistency business.industry Phasor Energy Engineering and Power Technology State vector Visualization Electric power system Data quality Electronic engineering Global Positioning System Maximum power transfer theorem Electrical and Electronic Engineering business
Zdroj:	IEEE Transactions on Power Systems. 29:881-888
ISSN:	1558-0679 0885-8950
DOI:	10.1109/tpwrs.2013.2284098
Popis:	Validation and data quality improvement of phasor data through state estimation is the first step in ensuring that the synchrophasor data is useful for applications in monitoring, visualization, and control. This paper presents a phasor-measurement-based state estimator (PSE) for improving data consistency by identifying angle biases and current scaling errors in the phasor data using the augmented state vector approach. These errors can arise from issues with the Global Positioning Signal (GPS), timing circuits, instrument channels, and/or data channel scaling. The PSE is demonstrated using several sets of disturbance data from the Central New York Power System. The PSE can also provide estimates of line parameters and transformer tap ratios with sufficient measurement redundancy. Finally, the PSE allows the computation of interface power flows for disturbance and stability monitoring.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::80e8454ca47e734cea7e5a87455043a5 https://doi.org/10.1109/tpwrs.2013.2284098 Zobrazit plný text záznamu