Measurement of synchronous machine parameters using Kalman filter based fuzzy logic estimator |
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Authors: | HM Al-Hamadi KM EL-Naggar |
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Affiliation: | 1. Information Science Department, CFW, Kuwait University, Odyliyah Campus, PO Box 5969, Safat 13060, Kuwait;2. Electrical Engineering Department, College of Technological Studies, PO Box 42325, Shuwaikh 70654, Kuwait |
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Abstract: | This paper presents a new Kalman filter/fuzzy logic approach for estimating synchronous machine parameters from short circuit tests. The technique uses on-line noisy measurements of the short circuit current for estimating direct axis reactances, and time constant synchronous machine parameters. The approach is based on expressing short circuit current as a discrete time linear dynamic system model suitable for the Kalman filter to estimate the parameters. Fuzzy rule-based logic is used to tune-up measurement noise levels by adjusting the covariance matrix. The results show a better convergence using fuzzy logic than those solely using the Kalman filter. |
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Keywords: | Estimation Kalman filter Fuzzy logic Synchronous machine parameters Short circuit test |
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