Patent ID: 11888418
Assignee: HAMILTON SUNDSTRAND CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A method of controlling a plurality of motor drives connected in parallel to drive a common load, the method comprising:
performing, at each motor drive, a proportional integral function on an input command signal utilising a local measured signal of the motor drive and a global input signal indicative of the behaviour of the one or more other motor drives,
wherein the global input signal is incorporated into the proportional integral function with the input command signal and the local measured signal to provide a local control signal for each motor drive;
wherein the input command signal is a common signal provided to all of the motor drives from a central controller and the global input signal is provided to all motor drives from the central controller and is derived from a local reference from each motor drive.