Abstract:

This article is based on the hybrid energy storage system of electric vehicles, combined with its control technology for in-depth analysis. Based on its different characteristics, this design analysis is carried out. The hardware design of the energy storage system mainly involves CAN communication circuit design, etc; The main control chip in the composite energy storage system in this design is selected as the DSPTMS320F2812 chip, and the software design includes multiple stages such as the design of the supercapacitor voltage acquisition program. Experimental tests have found that effective control of motor speed during discharge tests in various modes can enable supercapacitors and batteries to switch to corresponding operating modes, ultimately verifying the design characteristics of this system.

Key words: energy storage system, electric vehicles, control technology, bidirectional DC/DC converter