期刊
ENERGY
卷 114, 期 -, 页码 40-51出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2016.07.156
关键词
Street lighting; Renewable energy; Energy management; Smart cities
资金
- National Development Agency, Hungary [KTIA KMR 12-1-2012-0031]
- Hungarian Scientific Research Fund (OTKA) [113038]
- Janos Bolyai Research Fellowship [BO/00217/16/6]
The paper investigates the application of solar energy in public lighting for realizing a street lighting sub grid with positive yearly energy balance. The focus is given to the central controller, which ensures the adaptive behavior of the overall system and provides smart city services to the end users, via its web based user interface. A functionality of the controller of special interest is the optimization of the energy management of the system, i.e., determining when to sell and buy electricity to/from the grid, in order to minimize the cost of electricity (or to maximize the profit) subject to a given, time-of-use variable energy tariff. This requires precise forecasts of the energy produced and consumed, as well as appropriate robust optimization techniques that guarantee that the system bridges potential power outages of moderate duration in island mode. The algorithms implemented in the controller are presented in detail, together with the evaluation of the operation of a deployed. physical prototype with 191 luminaries over a horizon of six months, based on the monitoring data collected by the proposed controller. (C) 2016 Elsevier Ltd. All rights reserved.
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