期刊
SUSTAINABLE ENERGY GRIDS & NETWORKS
卷 21, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.segan.2019.100280
关键词
Renewable energy sources; Energy management strategy; Switched nonlinear system; Lyapunov function method
This paper presents a novel strategy for output power control of a hybrid energy system, composed of renewable energy sources (wind and photovoltaic), a battery bank and a variable load. Developing an energy management strategy, the hybrid energy system is described here as a switched nonlinear system with unknown parameters. Then, an adaptive control strategy is proposed to satisfy the total power demand in different conditions, under arbitrary switching. The proposed control law only depends on angular speed and current, without requiring the wind measurements. The analytical stability proof is given, based on the common Lyapunov function method. The simulation results are also presented and discussed to demonstrate the performance of the proposed method, for a typical hybrid energy system. (c) 2019 Elsevier Ltd. All rights reserved.
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