Tazvinga, HenericaZhu, BingXia, Xiaohua2015-06-262015-06-262014-10Tazvinga, H, Zhu, B & Xia, X 2014, 'Energy dispatch strategy for a photovoltaic-wind-diesel-battery hybrid power system', Solar Energy, vol. 108, pp. 412-420.0038-092X (print)1471-1257 (online)10.1016/j.solener.2014.07.025http://hdl.handle.net/2263/45791In this paper, an energy dispatch model that satisfies the load demand, taking into account the intermittent nature of the solar and wind energy sources and variations in demand, is presented for a solar photovoltaic–wind–diesel–battery hybrid power supply system. Model predictive control techniques are applied in the management and control of such a power supply system. The emphasis in this work is on the co-ordinated management of energy flow from the battery, wind, photovoltaic and diesel generators when the system is subject to disturbances. The results show that the advantages of the approach become apparent in its capability to attenuate and its robustness against uncertainties and external disturbances. When compared with the open loop model, the closed-loop model is shown to be more superior owing to its ability to predict future system behavior and compute appropriate corrective control actions required to meet variations in demand and radiation. Diesel consumption is generally shown to be more in winter than in summer. This work thus presents a more practical solution to the energy dispatch problem.en© 2014 Elsevier Ltd. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Solar Energy. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Solar Energy, vol. 108, pp. 412-420, 2014. doi : 10.1016/j.solener.2014.07.025Energy managementDisturbanceIntermittent natureHybrid energy systemOptimization schemePostprint Article