SIMULATION MODEL AND SCIENTIFIC COMPUTING OF VEHICLE ELECTRIC POWER SYSTEM

Abstract

Electrical system capacity determination for conventional vehicles can be expensive due to repetitive empirical vehicle-level testing. Electrical system modeling and simulation have been proposed to reduce the amount of physical testing necessary for component selection. To add value to electrical system component selection, the electrical system simulation models must regard the electrical system as a whole. Electrical system simulations are heavily dependent on the battery submodel, which is the most complex component to simulate. Methods for modeling the battery are typically unclear, difficult, time consuming, and expensive.

Present paper discusses about a simple, fast, and effective equivalent circuit model structure for lead-acid batteries was implemented to facilitate the battery model part of the system model. The equivalent circuit model has been described in detail. The battery model was capable of providing accurate simulation results and very fast simulation speed.