Electric towing starting energy storage system

Abstract

The invention discloses an electric towing starting energy storage system which comprises a battery cabinet, seven battery boxes and a high-voltage protection box are assembled in the battery cabinet,each battery box is formed by connecting 20 super-capacitor battery cells in parallel and then connecting 48 groups of super-capacitor battery cells in series, and the high-voltage protection box iscomposed of a fuse, a contactor, a current sensor and a BMS control unit electrical part. The battery box is connected with a battery acquisition unit, the battery acquisition unit is connected with abattery management unit through CAN communication, the battery management unit is connected with a high-voltage protection unit, the high-voltage protection unit is connected with direct-current loadcharging equipment, a self-checking module is arranged in the battery cabinet, and a battery management control logic module is arranged in the battery cabinet. High-power charging and discharging ofstarting and braking feedback of an engine or an auxiliary power supply of equipment are met, the charging and discharging working conditions of ultra-wide environment temperature are met, and the system is small in size and light in weight.

Description

technical field [0001] The invention relates to the technical field of power sources, in particular to an electric traction starting energy storage system. Background technique [0002] Supercapacitor energy storage: The electric double layer structure composed of activated carbon porous electrodes and electrolytes is used to obtain super large capacitance. Unlike batteries that use chemical reactions, the charging and discharging process of supercapacitors is always a physical process, with short charging time and long service life , good temperature characteristics, energy saving and environmental protection. Disadvantages: low energy density, high self-discharge rate. [0003] Lead-acid battery energy storage: It is a kind of battery whose electrodes are made of lead and its oxides, and the electrolyte is sulfuric acid solution. The cycle life is about 1000 times, the efficiency is 80% to 90%, and the cost performance is high. Disadvantages: a) When deep, fast and high-...

AI Technical Summary

Problems solved by technology

Disadvantages: low energy density, high self-discharge rate

Disadvantages: a) When deep, fast and high-power discharge, the available capacity decreases; b) low energy density and short life; c) large volume

Disadvantages: a) expensive; b) the process causes safety problems such as heating and burning, and the battery has high requirements for ambient temperature

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