	US 11,936,184 B2
	Systems and methods for operating hybrid power system by combining prospective and real-time optimizations
Suresh Baddam Reddy, Peoria, IL (US); and Dimple Raja Prathapaneni, Samanathnam (IN)
Assigned to Caterpillar Inc., Peoria, IL (US)
Filed by Caterpillar Inc., Peoria, IL (US)
Filed on Aug. 19, 2021, as Appl. No. 17/406,486.
Prior Publication US 2023/0059990 A1, Feb. 23, 2023
Int. Cl. H02J 3/00 (2006.01); G06Q 50/06 (2012.01); H02J 3/38 (2006.01)

CPC H02J 3/003 (2020.01) [G06Q 50/06 (2013.01); H02J 3/381 (2013.01)]

18 Claims

1. A method of operating a hybrid power system, comprising:

obtaining a load forecast for the hybrid power system;

obtaining a power availability forecast and an energy cost forecast for each power asset group of a plurality of power asset groups, wherein the plurality of power asset groups includes a genset group, and one or more of an (i) energy storage system group, a (ii) photovoltaic group, or a (iii) power grid connection;

performing at least one prospective optimization to determine scheduled active power commands for the plurality of power asset groups that optimize an operating cost of the hybrid power system, wherein an operating cost associated with the genset group is determined by a summation across each genset for individual energy cost, maintenance cost, and start/stop frequency penalty;

tracking an on-line load of the hybrid power system;

tracking an on-line power availability and an on-line energy cost for the plurality of power asset groups;

performing at least one on-line optimization to determine on-line active power commands for the plurality of asset power groups that (i) account for variance between the load forecast and the on-line load, (ii) account for variance between the power availability forecast and the on-line power availability, and (iii) optimize the operating cost of the hybrid power system; and

operating the plurality of power asset groups based on the scheduled active power commands and the on-line active power commands.