Energy saving system of elevator

An energy-saving system and elevator technology, which can be used in systems for storing electrical energy, integration of power network operating systems, information technology support systems, etc. Effect

Active Publication Date: 2010-08-18
NANJING UNIV OF SCI & TECH
View PDF8 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there have been corresponding studies on using supercapacitors as backup power and auxiliary power, but all of them are only using supercapacitors as backup power for the system for emergency use, or as auxiliary power when the elevator is started. obvious

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Energy saving system of elevator
  • Energy saving system of elevator
  • Energy saving system of elevator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0021] The present invention uses a supercapacitor bank as an elevator regenerative braking energy storage device to absorb regenerative braking energy during the braking process (deceleration up or acceleration down) of the elevator sub-system, and the power supply switching control circuit is controlled by the system controller to realize super The capacitor bank and the external AC grid are switched to supply power to the elevator sub-system, and the super capacitor bank can be used as a temporary backup power supply when the external AC grid is unexpectedly powered off to ensure system safety; at the same time, the energy stored in the super capacitor bank It can be fed back to the external AC grid, and the energy feedback control circuit can be used to select between the super capacitor energy storage to supply power to the elevator subsystem and the supe...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an energy saving system of an elevator. In the system, a super capacitor group is utilized as a regenerative braking energy storage device of an elevator sub-system and a power supply source for operating the elevator sub-system, energy is stored in the braking process of operating the elevator sub-system, a power source switching control circuit is controlled by a system controller to realize the switching between the super capacitor group and an external alternating current network for supplying the electricity to the elevator sub-system so as to achieve the purpose of saving energy. The system fully utilizes the characteristics of heavy current discharge of a super capacitor, lowers the requirements on the level of the external alternating current network and can synchronously satisfy a peak value power generated when the elevator sub-system is operated, and the super capacitor presents the advantages of long service life, short charging and discharging time, large capacitance density and the like. The system saves energy and synchronously improves the safety of the elevator operation and has very high social benefit and economic benefit.

Description

technical field [0001] The invention belongs to the field of elevator application and energy saving, in particular to a novel elevator energy saving system which uses a supercapacitor bank to store the regenerative braking energy of an elevator to provide power for the operation of an elevator system or feed back to a power grid. Background technique [0002] With the development of modern technology and the improvement of people's living standards, the use of elevators is becoming more and more popular, especially in modern big cities, high-rise buildings have become the mainstream, and elevators suitable for high-rise buildings are growing rapidly, bringing people's lives Great convenience. At the same time, more and more people have noticed that the use of elevators has an important negative impact, that is, energy consumption. The braking energy generated when the elevator decelerates upwards and accelerates downwards during the operation of the elevator is usually cons...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H02J15/00H02J9/06H02J3/38
CPCY02B70/30Y04S20/20
Inventor 郭健陈庆伟刘博宇吴益飞樊卫华胡维礼王铭明米运洪秦建波杜江鹏
Owner NANJING UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap