Recursive parameter estimation of thermostatically controlled loads via unscented Kalman filter
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- 作者：Eric M. Burger ; ericburger@berkeley.edu" class="auth_mail" title="E-mail the corresponding author ; Scott J. Moura
- 关键词：Smart grid ; Unscented Kalman filter ; Online system identification ; Recursive parameter estimation ; Thermostatically controlled loads (TCL) ; Demand response
- 刊名：Sustainable Energy,Grids and Networks
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：8
- 期：Complete
- 页码：12-25
- 全文大小：3724 K
文摘
For thermostatically controlled loads (TCLs) to perform demand response services in real-time markets, online methods for parameter estimation are needed. As the physical characteristics of a TCL change (e.g. the contents of a refrigerator or the occupancy of a conditioned room), it is necessary to update the parameters of the TCL model. Otherwise, the TCL will be incapable of accurately predicting its potential energy demand, thereby decreasing the reliability of a TCL aggregation to perform demand response. In this paper, we investigate the potential of various unscented Kalman filter (UKF) algorithm variations to recursively identify a TCL model that is non-linear in the parameters. Experimental results demonstrate the parameter estimation of two residential refrigerators. Finally, simulation results demonstrate the incorporation of the recursive parameter estimation methods into a model predictive controller for demand response.