Journal
ANNALS OF OPERATIONS RESEARCH
Volume 303, Issue 1-2, Pages 197-216Publisher
SPRINGER
DOI: 10.1007/s10479-019-03444-3
Keywords
Micro-grid; Control; Lookahead policies; Building
Categories
Funding
- CPS Energy
- University of Texas at San Antonio
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This paper proposes an efficient data-driven building electricity management system integrating BES and photovoltaic panels, and uses various strategies to control the MG system. Results show that the lookahead policy with stochastic forecasts performs best.
This paper presents an efficient data-driven building electricity management system that integrates a battery energy storage (BES) and photovoltaic panels to support decision-making capabilities. In this micro-grid (MG) system, solar panels and power grid supply the electricity to the building and the BES acts as a buffer to alleviate the uncertain effects of solar energy generation and the demands of the building. In this study, we formulate the problem as a Markov decision process and model the uncertainties in the MG system, using martingale model of forecast evolution method. To control the system, lookahead policies with deterministic/stochastic forecasts are implemented. In addition, wait-and-see, greedy and updated greedy policies are used to benchmark the performance of lookahead policies. Furthermore, by varying the charging/discharging rate, we obtain the different battery size (E-s) and transmission line power capacity (P-max) accordingly, and then we investigate how the different E-s and P-max affect the performance of control policies. The numerical experiments demonstrate that the lookahead policy with stochastic forecasts performs better than the lookahead policy with deterministic forecasts when the E-s and P-max are large enough, and the lookahead policies outperform the greedy and updated policies in all case studies.
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