Systems and methods to optimize lifespan and efficiency in energy storage systems

Abstract

An energy storage system includes an energy conversion system (PCS) and a plurality of energy storage nodes. The energy storage nodes include a battery storage element and a control subsystem for receiving battery data from the battery storage element. The energy storage system also includes a control system coupled to the energy storage nodes and configured to receive or store a required power flow. The control system is configured to receive or store the power flow required for an electrical application.The control system is configured to dispatch the required power flow through the plurality of energy storage nodes based on at least two of the following factors: (1) a lifetime cost of the battery storage element; (2) a lifetime cost of the PCS; and (3) an operating efficiency of the battery storage element and the PCS.