Ingersoll-Rand Energy Systems Corporation

Southern California Gas Company

German Lakov

Randall G Finstad

Mohammed Ebrahim

Sunit Oliver

An engine control system suited for use with an engine that outputs electrical power to a local load and is electrically connected to an electrical grid. The engine generates power at a power output value and the load consumes power at a load value. The engine control system includes a sensor that measures an electrical parameter indicative of a difference between the power output value and the load value, and a master control system that varies the engine power output value to prevent the electrical parameter from reaching zero.

Active anti-islanding system and method

An engine control system suited for use with an engine that outputs electrical power to a local load and is electrically connected to an electrical grid. The engine control system includes a set point control operable to set an engine power output value and a sensor operable to measure an electrical parameter between the engine and the electrical grid. A master control system is operable to maintain the engine electrical power at about the engine power output value. The master control system is also operable to vary the engine power output value to maintain the electrical parameter above a predetermined value.

A microturbine engine that includes a compressor that is operable to provide a flow of compressed air. The compressed air flows through a recuperator where it is preheated before delivery to a combustor. The preheated compressed air mixes with a fuel and is combusted within the combustor to provide a flow of products of combustion. The flow of products of combustion pass through one or more turbines to drive the compressor and a synchronous generator. The synchronous generator is able to synchronize to a priority load, to the utility grid or to both depending on the mode of operation. A control system monitors various engine parameters as well as load and grid parameters to determine the desired mode of operation.

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North Andover, MA, United States of America

German Lakov