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Abstract: Responding to the increase in the production of electric energy from renewable resources has become a new development theme for the energy supply network. Today's power systems need to maintain a stable supply-demand balance at all times, manage the supply grid more flexibly, and ensure optimal levels of energy efficiency. Battery Energy Storage System (BESS) have received significant observation over the last decade because of their role in grid modernization. Currently, energy storage plays an important part in grid modernization to provide a number of services, such as peak shaving. In this research, BESS for peak shaving of utility grid MWh storage applications, Chauk township distribution system (located in Magway division of central Myanmar) is studied. A novel Fuzzy Logic Control (FLC) algorithm is developed based on the load characteristic of the grid and takes into account the usable energy from the batteries during the operation of the BESS based on their State-of-Charge (SOC) and determined the amount of power delivered to the grid. Experiments have been carried out to evaluate the performance of the Fuzzy Logic Control (FLC) algorithm.

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