Caterpillar Inc.
Energy management system with gensets and energy storage

Abstract:

A micro-grid system for providing power to a load includes a plurality of gensets and energy storage units (ESU) in parallel. An asset management controller is configured to determine a genset cost function for the gensets based on at least an efficient load factor, and determine an ESU cost function based on at least the a discharge power loss (DPL) and a charge power loss (CPL). The AMC assigns a priority to each ESU and each genset based on the cost function and selectively activates the power supplies based on the priority and a power demand of the load and a reserve. The AMC determines an available reserve among activated power supplies then selectively distributes the load among activated power supplies and reserve among the available reserve.