Controlling a Dispatch Operation of an Energy Storage System

A method of actively controlling a dispatch operation of an energy storage system, the method comprising:

• receiving, by one or more control devices, data indicative of a present dispatch state associated with an energy storage system, the energy storage system comprising battery energy storage units couplable to the energy storage system via respective switching elements, the present dispatch state specifying the battery energy storage units presently coupled to the system;
• identifying, by the one or more control devices, one or more candidate dispatch states associated with the energy storage system, each of the one or more candidate dispatch states being different from the present dispatch state;
• selecting, by the one or more control devices, at least one of the one or more candidate dispatch states as a selected dispatch state based at least in part on a performance model, the performance model modeling the performance of the one or more candidate dispatch states as a function of one or more operating parameters and based at least in part on one or more constraints;
• and
• controlling, by the one or more control devices, operation of the switching elements to couple one or more of the battery energy storage units to the energy storage system based at least in part on the selected dispatch state.

An energy storage system comprising:

• a plurality of battery energy storage units;
• and
• a system controller communicatively coupled to a plurality of contactors used to selectively couple the plurality of battery energy storage units to the energy storage system, the system controller comprising at least one processor and a non-transitory computer-readable medium storing instructions that, when executed by the at least one processor, cause the system controller to perform operations, the operations comprising:
• receiving data indicative of a present dispatch state associated with the energy storage system, the present dispatch state specifying the battery energy storage units presently coupled to the system;
• identifying one or more candidate dispatch states associated with the energy storage system, each of the one or more candidate dispatch state being different from the present dispatch state;
• selecting at least one of the one or more candidate dispatch states as a selected dispatch state based at least in part on a performance model, the performance model modeling the performance of the one or more candidate dispatch states as a function of one or more measured operating parameters;
• and
• controlling operation of the contactors to couple one or more of the battery energy storage units to the energy storage system based at least in part on the selected dispatch state.

A system controller for controlling one or more battery energy storage units in an energy storage system, the system controller comprising at least one processor and a non-transitory computer-readable medium storing instructions that, when executed by the at least one processor, cause the system controller to perform operations, the operations comprising:

• receiving data indicative of a present dispatch state associated with an energy storage system, the energy storage system comprising a plurality of battery energy storage units couplable to the energy storage system via respective switching elements, the present dispatch state specifying the battery energy storage units presently coupled to the system;
• identifying one or more candidate dispatch states associated with the energy storage system, each of the one or more candidate dispatch state being different from the present dispatch state;
• selecting at least one of the one or more candidate dispatch states as a selected dispatch state based at least in part on a performance model, the performance model modeling the performance of the one or more candidate dispatch states as a function of one or more measured operating parameters;
• and
• controlling operation of the switching elements to couple one or more of the battery energy storage units to the energy storage system based at least in part on the selected dispatch state.