Elevator energy recovery system based on lithium carbonate batteries

Abstract

The invention discloses an elevator energy recovery system based on lithium carbonate batteries, comprising a first buck circuit which is in communication connection with a system control motherboardto realize energy recovery, a lithium carbonate battery pack S1 which is connected in series to the output end of the first buck circuit and used for storing energy, and a second buck circuit which assists in adjusting a reference voltage output by S1. In the second buck circuit, the reference voltage is stabilized by a capacitor C1 connected in series with one end of the lithium carbonate batterypack so that the voltage of a DC bus connected with the lithium carbonate battery pack is raised and stabilized within a predetermined voltage value range. The invention provides an elevator energy recovery system based on lithium carbonate batteries. The cost of the system is reduced by reducing the string number of the energy storage devices of the energy storage unit to less than half of thatin the existing elevator energy recovery system scheme.

Description

Technical field [0001] The invention relates to the field of elevator energy recovery, more specifically, to an elevator energy recovery system based on a lithium titanate battery Background technique [0002] With the continuous development of urban construction, the number of high-rise buildings is growing rapidly, and multiple elevators will be installed in each building. Due to the high utilization rate of elevators, its power consumption is also high. And because of the continuous development of science and technology in various fields, the demand for energy is increasing rapidly, but the resources of natural energy are very limited. Therefore, energy conservation and secondary utilization technologies in various fields have become very hot topics in recent years. [0003] In the elevator field, modern elevators all work in traction mode. The principle is that one end of the wire rope hung on the traction sheave is connected to the car, and the other end of the wire rope is ...

AI Technical Summary

Problems solved by technology

The price when it finally reaches the user is even higher, which is also the main reason why the elevator energy system is difficult to popularize in the realization of the project

[0008] For a 20KW / 30KW elevator system or a project with a higher number of floors, the elevator energy recovery system needs to be equipped with a larger number of supercapacitors, so its cost will basically increase proportionally

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