Patent ID: 9722426
Date: 2017-08-01
CPC Classifications: H02J,Y04S

Claim:
1. A hybrid energy system, comprising: a step-up transformer; a gas turbine generator (GTG) configured to provide a full-load power output; a storage device configured to store energy; an inverter-rectifier coupled to the storage device and configured to output alternating current (AC); and a hybrid management system coupled to the GTG, storage device and inverter-rectifier and configured to govern a ramp rate of net plant output, wherein the GTG and the storage device are electrically co-located and AC power outputs of the GTG and the inverter-rectifier are AC-coupled on a low side of the step-up transformer and are configured to provide a hybrid operating profile and hybrid transient response from minimum-load to full-load power output, and wherein the hybrid energy system is configured to respond to an increasing desired load transient event when the GTG is initially stopped by discharging a portion of the stored energy capacity while the GTG is starting such that a total hybrid energy system output follows a ramping profile continuously increasing toward the desired load at a hybrid ramp rate that substantially matches a gas-turbine alone ramp rate as if the GTG were running in an on-line mode at the start of the transient event.