Development energy management strategy to optimize battery operation in islanding microgrid using zero one integer programming

摘要

On solar energy microgrid,during the islanding condition and no solar radiation, at night, it only use the battery as a source of energy. This condition raises another problem of how to manage battery operation of each generation to maintain the continuity of the power distribution to each load so that each generation is still able to distribute power without load shedding due to insufficient of energy supply from the battery or if load shedding is done, it must be done at the most minimum. To solve the aforementioned problem, energy management strategy to manage power sharing between PV generation in PV-microgrid is developed, which will manage the usage of back-up battery operation on each distributed generation in order to maintain the continuity of power distribution or to minimize the amount of load shedding, by using the zero one integer programming. The result of the research shown that implementation of the load shedding optimization mechanism using zero-one integer programming on the aforementioned problem, can increase the PDI (Power Distribution Index) from 86,65% to 95,75% at 5 generation simulation, with power sharing method based on Equal Inverter Output Power Operation Mode. Meanwhile, power sharing method based on Equal Battery Level Operation Mode, the implementation of load shedding optimization increases PDI from 95,86% to 99,20%.