Eaton Intelligent Power Limited

Vincent Edward Wilder

George Arthur Navarro

Goran Mandic

Amit Govind Kolge

Swanand Juvekar

Steven Andrew Moore

Webb Lewis Burgess

An uninterruptible power supply (UPS) is operated to selectively provide energy to a critical load from a grid and an energy storage device and to transfer energy between the energy storage device and the grid. A controller causes the UPS to selectively support bidirectional and unidirectional transfers of energy between the grid and the energy storage device based on a state of charge (SOC) of the energy storage device.

Controllers for uninterruptible power supplies and methods of operating the same

A system includes a DC bus and an auxiliary power source coupled to the DC bus. The system further includes an energy storage device and a modular uninterruptible power supply (UPS) including a first uninterruptible power module (UPM) coupled to the DC bus and configured to provide power to an AC load from the auxiliary power source and a second UPM coupled to the DC bus and the energy storage device and configured to transfer energy between the DC bus and the energy storage device to regulate a voltage on the DC bus.

Fuel cell based uninterruptible power supply systems

A system includes an uninterruptible power supply (UPS) configured to selectively provide power to a critical load from a grid and an energy storage device, and a grid edge controller configured to communicate with a controller of the UPS and to cause the UPS to operate the energy storage as a distributed energy resource (DER) for the grid while preserving autonomous operation of the UPS to serve the critical load. The grid edge controller may be configured, for example, to maintain a critical reserve in the energy storage device that enables the UPS to maintain the critical load, while allowing the energy storage device to also be used for demand management, frequency regulation and other grid-oriented tasks. The grid edge controller may be configured to control the UPS, for example, via an application programming interface (API) of the controller of the UPS.

Grid-edge controllers for uninterruptible power supplies and methods of operating the same

A system includes a plurality of power routing units. Each of the power routing units includes a first AC port, a second AC port, and a static switch configured to couple and decouple the first AC port and the second AC port. Each of the power routing units further includes a DC port and a bidirectional converter circuit coupled between the second AC port and the DC port. The DC ports of the power routing units are coupled in common to a DC bus and the system further includes a control circuit configured to control the power routing units to provide power transfer between at least two of the power routing units via the DC bus.

Uninterruptible power supply systems and methods using interconnected power routing units

A data center power distribution system includes at least one switch configured to couple at least one first power source to a load and at least one converter configured to couple at least one second power source to the load. The system further includes a control circuit configured to implement a state machine that controls the at least one switch and the at least one converter to redundantly provide power to the load using variable source designations for the at least one first power source and the at least one second power source. Variation of the source designations for the at least one first power source and the at least one second power source may vary a priority relationship among the at least one first power source and the at least one second power source responsive to a control input.

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Clayton, NC, United States of America

Vincent Edward Wilder