LITHIUM POLYMER BATTERY MODEL AND DIGITAL SIMULATOR FOR ELECTRICAL POWER SYSTEM ANALYSIS IN ELECTRICAL PROPULSION SUBMARINE

摘要

PURPOSE: A lithium polymer battery model and a digital simulator for analyzing an electric power system for an electrical propulsion submarine are provided to analyze the property of the electric power system without actually using a lithium polymer battery by simulating the property of the lithium polymer battery according to an operation condition. CONSTITUTION: A battery capacity operation module(130) receives a battery current and a battery temperature from an electric circuit module(120). The battery capacity operation module operates the battery capacity changed according to the battery discharge current by receiving the number of batteries and inputs the operated battery capacity to a battery voltage operation module(110). A charge and discharge control module(140) prevents the over charge and over discharge and controls the switching between a charge mode and a discharge mode.