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Elevator energy recovery ensuring system

A technology of energy recovery and energy feedback, applied in the direction of AC network load balancing, etc., can solve the problems of failure to optimize the operation of the economy, failure to consider the economy, etc., to achieve economic operation, meet emergency power supply guarantees, and stable and reliable power quality Effect

Active Publication Date: 2013-12-11
NAT ENG RES CENT OF ADVANCED ENERGY STORAGE MATERIALS SHEN ZHEN LTD CO
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AI Technical Summary

Problems solved by technology

In the prior art, devices including energy storage subsystems such as UPS or EPS are used as backup power supply methods to improve the emergency power supply guarantee of elevators, but they often fail to consider economic needs and fail to optimize their operation economically.

Method used

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  • Elevator energy recovery ensuring system
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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0031] refer to figure 1 , The elevator energy recovery and utilization guarantee system consists of three parts: elevator energy feedback subsystem, energy storage subsystem, and management subsystem.

[0032]The elevator energy feedback subsystem includes an elevator traction motor, a rectifier bridge, an inverter bridge, and a one-way DC / DC. The busbar is electrically connected, the DC busbar is electrically connected to the braking resistor through the switch K3, the DC busbar is electrically connected to the unidirectional DC / DC through the switch K2, the rectifier bridge is electrically connected to the AC power distribution cabinet through the switch K1, and the AC power distribution cabinet is connected through the switch K0 External mains power; the elevator energy feedback subsystem is mainly used to realize the normal energy supply...

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Abstract

An elevator energy recovery ensuring system comprises an elevator energy feedback subsystem, an energy storage subsystem and a management subsystem. Energy fed back by an elevator is stored in the energy storage subsystem, operation of the energy storage subsystem is economically optimized, the purpose that elevator energy is completely recycled is achieved, emergency power supply guarantee is provided, and economic operation of the whole system can be achieved.

Description

technical field [0001] The invention relates to an elevator energy recovery and utilization guarantee system, in particular to an elevator energy recovery and utilization guarantee system for recovering and utilizing elevator braking energy. Background technique [0002] The process of urbanization has given birth to the development of real estate, the number of urban buildings has increased significantly, there are more and more high-rise buildings, and the use of elevators has become popular. As the power equipment of the building, the elevator consumes a large amount of electric energy, which further aggravates the contradiction of urban electricity shortage. [0003] The elevator's ascent and descent actions are realized by the elevator traction motor. The power supply principle of the traction motor is usually to rectify the mains power into DC through the rectifier bridge, and then convert the DC into AC through the inverter bridge to supply the traction motor. There ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/32
Inventor 刘宏兵周树良张克宁张传利胡顺华夏敏王宏
Owner NAT ENG RES CENT OF ADVANCED ENERGY STORAGE MATERIALS SHEN ZHEN LTD CO
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