Patent ID: 7184903

Claim:
A power grid control system, comprising: a transmission and distribution electrical power grid having a plurality of network islands, the network islands having a plurality of linear and non-linear loads; a plurality of control sensors in communication with the power grid to monitor the electrical characteristics of the power grid; a plurality of controlled relays in electrical communication with the plurality of non-linear loads; a battery energy storage system in electrical communication with a main power source and a network island; and a first restoration controller in electrical communication with the plurality of control sensors, controlled relays, and with the battery energy storage system, the first restoration controller to receive control signals from the plurality of control sensors, and in response to detecting an irregularity in the power grid, automatically actuating the battery energy storage system to maintain nominal voltage and frequency to the linear loads, and disconnecting selected controlled relays to disconnect power to a calculated percentage of the non-linear loads.