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Battery Energy Storage Based Frequency Control Scheme for Microgrid

Hridi Juberi, Md. Tanvir Ahmed

Abstract


This paper proposes a battery energy storage system (BESS) based frequency controller featuring micro grid with high level penetration of renewable energy resources (RES). The frequency controller gives an indication about some of the features that assists to enhance the stability of main power grid or more specifically micro grid and also overcome any imbalance in frequency occurring from any disturbance or fluctuation in system. The imbalance may occur due to increasing or decreasing of load. System frequency undergoes instable region due to the mismatch between power generation and demand and under this circumstances micro sources slowly respond to overcome this zigzag situation. To solve this situation a controller has been designed that responds to the frequency deviation within a specified limit or defined range which has been calculated by the implementation of trial and error method. After designing the controller, some cases have been observed by varying the system load in various situation. Simulations and experimental results assesses the proposed control solutions.


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References


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