Estimation of inherent governor dead-band and regulation using unscented Kalman filter
Estimation of inherent governor dead-band and regulation using unscented Kalman filter
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 dead-band 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.
governor dead-band, Load frequency control, parameter estimation, primary frequency response, unscented Kalman filter
3546-3558
Bhui, Pratyasa
40af4ae6-4f0c-4639-911d-4038a81822ee
Senroy, Nilanjan
b4565b4f-78eb-4a88-8af9-9d8c29238a4d
Singh, Abhinav K.
6df7029f-21e3-4a06-b5f7-da46f35fc8d3
Pal, Bikash C.
c062978e-53eb-4d5d-ace8-746ccafa5fb0
1 July 2018
Bhui, Pratyasa
40af4ae6-4f0c-4639-911d-4038a81822ee
Senroy, Nilanjan
b4565b4f-78eb-4a88-8af9-9d8c29238a4d
Singh, Abhinav K.
6df7029f-21e3-4a06-b5f7-da46f35fc8d3
Pal, Bikash C.
c062978e-53eb-4d5d-ace8-746ccafa5fb0
Bhui, Pratyasa, Senroy, Nilanjan, Singh, Abhinav K. and Pal, Bikash C.
(2018)
Estimation of inherent governor dead-band and regulation using unscented Kalman filter.
IEEE Transactions on Power Systems, 33 (4), .
(doi:10.1109/TPWRS.2017.2765692).
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 dead-band 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.
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More information
Accepted/In Press date: 16 October 2017
e-pub ahead of print date: 25 October 2017
Published date: 1 July 2018
Keywords:
governor dead-band, Load frequency control, parameter estimation, primary frequency response, unscented Kalman filter
Identifiers
Local EPrints ID: 430933
URI: http://eprints.soton.ac.uk/id/eprint/430933
ISSN: 0885-8950
PURE UUID: 5b1e4251-8f3f-45ce-9af8-5621d8037411
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Date deposited: 17 May 2019 16:30
Last modified: 18 Mar 2024 03:52
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Contributors
Author:
Pratyasa Bhui
Author:
Nilanjan Senroy
Author:
Abhinav K. Singh
Author:
Bikash C. Pal
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