Energy storage systems for electrical microgrids with pulsed power loads

DWPI Title: Electrical microgrid, has controller that adjusts control input duty cycle of bus interface converter to control injected current at bus to mitigate load transient from pulsed power load and maintain desired load voltage at bus
Abstract: Pulsed power loads (PPLs) are highly non-linear and can cause significant stability and power quality issues in an electrical microgrid. According to the present invention, many of these issues can be mitigated by an Energy Storage System (ESS) that offsets the PPL. The ESS can maintain a constant bus voltage and decouple the generation sources from the PPL. For example, the ESS specifications can be obtained with an ideal, band-limited hybrid battery and flywheel system.
Use: Electrical microgrid.
Advantage: Electrical microgrid provide trade-offs between bus voltage harmonic content and the energy storage system capacity and bandwidth.
Novelty: The electrical microgrid comprises a pulsed power load that provides a load transient to a bus of the electrical microgrid. A bus interface converter has a control input duty cycle that provides an injected current at the bus. An energy storage system that injects a current to the bus interface converter. A controller that adjusts the control input duty cycle of the bus interface converter to control the injected current at the bus to mitigate the load transient from the pulsed power load and maintain a desired load voltage at the bus. The energy storage system includes a supercapacitor, a flywheel, and a battery.
Filed: 9/30/2020
Application Number: US17038187A
Tech ID: SD 15092.1
This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.
Data from Derwent World Patents Index, provided by Clarivate
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