Patent ID: 9566867
Date: 2017-02-14
CPC Classifications: B60L,H02J,Y02E,Y02T,Y04S

Claim:
1. A method for enabling an existing main propulsion battery pack of an electric vehicle at any voltage of 100 V or more to provide energy storage and ancillary services such as frequency regulation to the electric grid by connecting the pack to an existing grid-tied Photo Voltaic inverter of virtually any input characteristics via an Electric Vehicle-Photo Voltaic (EVPV) apparatus comprising a DC-DC converter and an off-board battery charger of power substantially equal to that of the DC-DC converter, both of which said DC-DC converter and off-board battery charger are connected to the battery pack by DC wiring, and both of which are subject to control by a Data Acquisition and Control System (DACS) providing either proportional or on-off power flows into or out of the battery pack to the grid, which EVPV apparatus in turn is connected by permanent DC wiring to the grid-tied inverter and by permanent AC wiring to the grid, to provide remotely controllable, bidirectional power flow from the battery pack to the grid enabling ancillary services to be provided to the grid at the request of the grid Independent System Operator (ISO).