Elevator energy recovery system based on lithium carbonate batteries

An energy recovery and lithium carbonate technology, applied in the field of elevator energy recovery, can solve the problems of high price, increased cost, difficulty in popularizing elevator energy systems, etc., and achieve the effects of low conversion efficiency, low capacity cost, and large heat loss

Pending Publication Date: 2018-06-01
SICHUAN CLIMB ELEVATOR +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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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

Method used

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  • Elevator energy recovery system based on lithium carbonate batteries
  • Elevator energy recovery system based on lithium carbonate batteries
  • Elevator energy recovery system based on lithium carbonate batteries

Examples

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Embodiment

[0077] Attached figure 1 (System composition block diagram), a bootstrap elevator energy recovery system based on lithium titanate battery includes: system power supply, system main board, AC contactor, inverter module, three-phase rectifier bridge, auxiliary reference BUCK step-down circuit, Energy recovery BUCK step-down circuit, DC bus contactor, charge and discharge control contactor, energy storage inductor, IGBT module, lithium titanate battery pack, reference voltage filter capacitor, five-party intercom power module. The input three-phase contactor is the input end of the system power supply, the grid power supply is connected to the normally open contact of the three-phase contactor, and the AC output of the inverter module is connected to the normally closed contact of the three-phase contactor, two-phase 380V AC The voltage is connected to the control coil of the three-phase contactor. When the power grid is normally supplied, the three-phase contactor is closed, the ...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/32
CPCH02J3/32
Inventor 陈达兵聂文清余海跃彭兴平金春雨刘波
Owner SICHUAN CLIMB ELEVATOR
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