Method for controlling an energy storage system

摘要

A method for controlling an energy storage system. The same battery system shall support multiple services at the same time. During a planning phase, the multiple services to be provided are determined, based on the market situation and the capabilities of the energy storage system, and prioritized according to predefined criteria. During an operation phase, the power and energy status of the energy storage system is periodically monitored, and compared against the power and energy demands of the multiple services, in order to determine whether at each time instance, the multiple services can indeed be supported at the same time. In case power and/or energy limits are exceeded by the multiple services, at least one service is interrupted to allow the operation of the energy storage system to be within power/energy limits again. The interrupted service(s) is resumed when the power/energy limits are met.

主权项

1. A method for controlling an energy storage system connected to an electric grid, the method comprising:
determining at least two different energy services according to which the energy storage system is to be operated; prioritizing the two different energy services based on at least one predefined criterion; operating the same energy storage system in parallel according to the two different energy services to provide, from the energy storage system to the electric grid, total power associated with the two different energy services; and decreasing provision of low-priority power associated with at least one out of the two different energy services in an ascending order of priority to adjust the total power to predefined power limits of the energy storage system, in case that the total power does not lie within the predefined power limits.