OPERATING SYSTEM FOR ENERGY STORAGE DEVICE BASED ON KOREAN TYPE POWER CHARGES AND METHOD THEREOF

Korean power rate optimization ESS peak reduction system

This technology relates to an energy storage device operation method and system based on the Korean power rate system. It relates to an energy storage device operation method and system based on the Korean power rate system that can reduce the peak value of the actual power load pattern and the total power bill by controlling the charge and discharge operation of the energy storage device by calculating the optimized charge/discharge ratio of the energy storage device according to the results of comparative analysis of the peak value for predicted demand power and the actual accumulated peak value.

Korea's existing unique power rate system determines the base rate based on the maximum peak load over the past 12 months, making it difficult to substantially reduce electricity costs using energy storage systems (ESS) alone.

To solve these problems, this technology predicts the peak value of power demand for the current month based on past power usage data and compares it with the cumulative peak value of the past few months to calculate the optimal charging/discharging ratio of the ESS. It helps reduce overall electricity costs by simultaneously achieving peak load management and time-based rate reduction.

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Key Features:

• Predict the demand power peak value for the current month based on past power usage data
• Compare and analyze the predicted peak value and the actual cumulative peak value of the past few months
• Calculate the optimal charge/discharge ratio of the energy storage device according to the comparative analysis results, and control the system to reduce the next day's peak load through this
• Apply the Robust Optimization technique that takes into account the error in the predicted load, effectively dealing with the uncertainty of the actual power usage environment response

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This technology was developed through support from the Korea Institute of Energy Technology Evaluation and Planning's smart grid core technology development research project.

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