Simulating Pulsed Power Load Compensation using Lithium-ion Battery Systems

The progression and proliferation of electrochemical energy storage systems in the automotive sector is paving the way for batteries to become characterized for both high energy and power density. Thus there is an opportunity to exploit these characteristics for a common use energy storage system for warship power systems that require high energy to improve system steady state performance, and high power to compensate anticipated weapon loads such as laser directed energy weapons. The feasibility of a Lithium-ion NMC based energy storage system used in commercial applications to facilitate laser pulsed load demands is explored in this paper using time-domain simulation methods. The paper discusses the parameter extraction procedure for the battery simulation model and associated DC-DC converter control system. Results verify the ability of the battery and control system to meet anticipated laser load demands.