期刊
ENERGY CONVERSION AND MANAGEMENT
卷 102, 期 -, 页码 104-110出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.enconman.2015.01.015
关键词
Conflicting; Variable nature; Energy management; Hybrid energy system; Dispatch strategy
资金
- National Research Foundation of South Africa
- Energy Efficiency and Demand Side Management Hub
This paper presents an optimal energy management model of a solar photovoltaic-diesel-battery hybrid power supply system for off-grid applications. The aim is to meet the load demand completely while satisfying the system constraints. The proposed model minimizes fuel and battery wear costs and finds the optimal power flow, taking into account photovoltaic power availability, battery bank state of charge and load power demand. The optimal solutions are compared for cases when the objectives are weighted equally and when a larger weight is assigned to battery wear. A considerable increase in system operational cost is observed in the latter case owing to the increased usage of the diesel generator. The results are important for decision makers, as they depict the optimal decisions considered in the presence of trade-offs between conflicting objectives. (c) 2015 Elsevier Ltd. All rights reserved.
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