Patent ID: 11962156
Assignee: CATERPILLAR INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 16:
17. A hybrid power system, comprising:
a plurality of power asset groups that includes a genset group and one or more of an energy storage system group, a photovoltaic group, or a power grid connection; and
a controller that includes:
at least one memory storing instructions; and
at least one processor operatively connected to the memory, and configured to execute the instructions to perform operations, including:
obtaining load data for the hybrid power system;
obtaining power availability data and energy cost data for each power asset in each power asset group of the plurality of power asset groups; and
determining active power commands for each power asset by performing at least one optimization, such that the determined active power commands optimize a total operating cost of the hybrid power system, wherein:
the determined active power commands include one or more of a power on or start command, a power off or stop command, a continue command, an idle command, a charge command, or a discharge command;
the at least one optimization is based on at least one cost function that accounts for asset degradation, asset maintenance cost, asset operation efficiency cost, and the energy cost data; and
the at least one optimization is constrained by a plurality of constraints based on the load data, the power availability data, and characteristics of the power assets; and

operating each power asset based on the determined active power commands, wherein operating a respective genset in the genset group based on the determined active power commands includes:
determining whether an operating condition of the hybrid power system has been stable fora predetermined threshold period; and
upon determining that the hybrid power system has been stable for the predetermined threshold period:
 waiting for a predetermined period of time; and
 after waiting for the predetermined period of time, starting or stopping operation of the respective genset.