Power management system and power management method

Abstract

Provided is a power management system including an inverter and a computing device. The inverter is operatively coupled to a photovoltaic array, a power grid, and a battery. The computing device is configured to control the inverter to operate in one of the rule-based control mode and the scheduling mode based on a cost evaluation table, collect measurement data periodically from the inverter, calculate a first future cost corresponding to the rule-based control mode and a second future cost corresponding to the scheduling mode based on the measurement data, and update the cost evaluation table based on the first future cost and the second future cost. The cost evaluation table is configured to store, for each of a plurality of time intervals, a cost value corresponding to each of the operating modes.

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