Patent ID: 6140803
Filing Date: 2000-10-31
Classification: H02J,H02P

Abstract:
A method for operating a synchronous machine with a power system, which synchronous machine is driven by a prime mover and is operable with the power system through an electrical breaker, the method comprising the steps of:placing the breaker in an open condition;driving the prime mover for modifying the rate of change of rotational speed of the synchronous machine to a first rotational speed;changing the speed of the prime mover for advancing the speed of the synchronous machine toward a synchronizing speed useful with the power system;monitoring a rate of change in the speed of the synchronous machine;adjusting the rate of change of speed to a desired rate of change of speed for timely approaching the synchronizing speed;bringing the changing speed into a range of speeds proximate the synchronizing speed; andclosing the breaker when the speed of the synchronous machine is within the desired range of speeds for placing the synchronous machine in operation within the power system.