Flywheel-based energy storage on a heave-compensating drawworks

Details Flywheel-based energy storage on a heave-compensating drawworks Flywheel-based energy storage on a heave-compensating drawworks

2011-04-12

2011-04-12

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Generator-fed motor systems having generator control

With flywheel on generator or on motor

C318S161000

Reexamination Certificate

active

07923946

ABSTRACT:
A system for managing energy consumption in a heave-compensating drawworks includes a power supply, a winch drum connected to the power supply so as to receive power from the power supply, a flywheel connected to the winch drum and to the power supply, and a controller connected to the power supply and to the winch drum for passing energy to and from the flywheel during an operation of the winch drum. The flywheel includes a disk rotatably coupled to an AC motor. The power supply includes a first pair of AC motors operatively connected on one side of the winch drum and a second pair of AC motors operatively connected on an opposite side of the winch drum.

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