Caterpillar Inc.
Load distribution for dissimilar generator sets

Abstract:

An electrical power system includes a plurality of generator sets (gensets) having different response capabilities which are connected to a common bus that is coupled to an electrical load. The gensets may be operatively associated with one or more electronic controllers. Each genset has an operational range applied to it and a power target set for it. In the event of a change in the power demand by the electrical load, the operational ranges and the power target setting are changed according to the response capabilities of the individual gensets. To facilitate the change, the faster responding genset can operate intermittently according to various methods to generate additional power to compensate for the power deficiency of the slower responding genset as it adjusts to its changed settings.