Estimation of inherent governor dead-band and regulation using unscented Kalman filter

Bhui, Pratyasa and Senroy, Nilanjan and Singh, Abhinav Kumar and Pal, Bikash C. (2018) Estimation of inherent governor dead-band and regulation using unscented Kalman filter. IEEE Transactions on Power Systems, 33 (4). pp. 3546-3558. ISSN 0885-8950

Full content URL: http://doi.org/10.1109/TPWRS.2017.2765692

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Abstract

The inclusion of the governor droop and dead-band in dynamic models helps to reproduce the measured frequency response accurately and is a key aspect of model validation. Often, accurate and detailed turbine-governor information are not available for various units in an area control centre. The uncertainty in the droop also arise from the nonlinearity due to the governor valves. The droop and deadband are required to tune the secondary frequency bias factors, and to determine the primary frequency reserve. Earlier research on droop estimation did not adequately take into account the effect of dead-band and other nonlinearities. In this paper, unscented Kalman filter is used in conjunction with continuously available measurements to estimate the governor droop and the dead-band width. The effectiveness of the approach is demonstrated through simulations

Keywords:Load frequency control, parameter estimation, unscented Kalman filter, primary frequency response, governor dead-band
Subjects:H Engineering > H660 Control Systems
H Engineering > H360 Electromechanical Engineering
H Engineering > H620 Electrical Engineering
H Engineering > H631 Electrical Power Generation
H Engineering > H630 Electrical Power
Divisions:College of Science > School of Engineering
ID Code:29972
Deposited On:13 Dec 2017 15:58

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