Importance

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Abstract

An electric power generation plant has at least two synchronous machines and a source of mechanical power (torque), coupleable such that one or more of the synchronous machines can be operated as a generator while one or more is operated as a synchronous condenser. Field exciters, controlled shaft couplings, starters and switching sequences control starting, restarting and switching into simultaneous operation as generators, as condensers, or as one or more generators and condensers synchronously coupled to one another along a drive train. The disclosed configurations include modifications of existing generator installations such as decommissioned plants, such as by controllably coupling a second synchronous machine to a drive train, for use as a condenser for power factor control when needed or as an added source of generator capacity during times of high demand.

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First Claim