Energy management in microgrids with flexible and interruptible loads

摘要

The reliability of the power supply is increasingly threatened both by natural catastrophes (such as floods, drought, storms, etc.) due to climate change effects and by cyber attacks on the connected power grid. In order to study the response to an outage, we address the problem in a bottom-up manner, starting from a small entity, the microgrid, in which renewable generation, storage and flexible loads are modeled. Using a demand management scheme and a classification into critical and interruptible demand, we investigate the remaining amount of energy required by the microgrid during an outage, reflected in a new metric, the “grid autonomy factor”.