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A Novel Operation and Control Strategy for a Standalone Hybrid Renewable Power System

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4 Author(s)
Haruni, A.M.O. ; Centre for Renewable Energy & Power Syst. (CREPS), Univ. of Tasmania, Hobart, TAS, Australia ; Negnevitsky, M. ; Haque, M.E. ; Gargoom, A.

This paper proposes a novel operation and control strategy for a renewable hybrid power system for a standalone operation. The proposed hybrid system consists of a wind turbine, a fuel cell, an electrolyzer, a battery storage unit, and a set of loads. The overall control strategy is based on a two-level structure. The top level is the energy management and power regulation system. Depending on wind and load conditions, this system generates reference dynamic operating points to low level individual subsystems. The energy management and power regulation system also controls the load scheduling operation during unfavorable wind conditions under inadequate energy storage in order to avoid a system blackout. Based on the reference dynamic operating points of the individual subsystems, the local controllers control the wind turbine, fuel cell, electrolyzer, and battery storage units. The proposed control system is implemented in MATLAB Simpower software and tested for various wind and load conditions. Results are presented and discussed.

Published in:

Sustainable Energy, IEEE Transactions on  (Volume:4 ,  Issue: 2 )