Estimation of Voltage Sags From a Limited Set of Monitors in Power Systems
| Autor: | Araceli Hernandez, M. Izzeddine, Xavier Zambrano, Rosa M. de Castro |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Engineering
business.industry Busbar 020209 energy Probabilistic logic Energy Engineering and Power Technology 02 engineering and technology Fault (power engineering) Reliability engineering Electric power system Probabilistic method Reliability (semiconductor) Voltage sag 0202 electrical engineering electronic engineering information engineering Electronic engineering Electrical and Electronic Engineering business Voltage |
| Zdroj: | IEEE Transactions on Power Delivery. 32:656-665 |
| ISSN: | 1937-4208 0885-8977 |
| DOI: | 10.1109/tpwrd.2016.2594232 |
| Popis: | This paper proposes a probabilistic method aimed at estimating the voltage sag frequency of nonmonitored sites given the number of sags recorded by a limited set of voltage sag monitors. The proposed method is based on simulating a representative database of feasible pseudomeasurements by using probabilistic values of fault coefficient, fault impedance, fault type, and fault location. This information is processed through Bayesian filtering based on the Bayes' probabilistic theorem. This enables obtaining the most probable voltage sag index at nonmonitored busbars given the index measured at monitored busbars. This statistical estimation of sag indices at locations where there are no monitors constitutes the main contribution of this paper. This study is developed in three power systems: the IEEE 24-busbar reliability test system, the IEEE 118-busbar test system, and the transmission network of Ecuador with 357 busbars. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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