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Feedback device of energy-saving elevator

A feedback device and elevator technology, applied in circuit devices, photovoltaic power generation, electrical components, etc., can solve problems such as user inconvenience, unavailability of electric energy, and elevators that cannot be used normally.

Inactive Publication Date: 2015-06-24
王玉洁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the elevator cannot be used normally, causing inconvenience to the user
After the DC power generated by the photovoltaic array of the existing solar elevator is used by the elevator system, the remaining power cannot be used, resulting in waste of power

Method used

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  • Feedback device of energy-saving elevator

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Experimental program
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Effect test

Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings.

[0013] Such as figure 1 As shown, a feedback device for an energy-saving elevator includes a DC filter capacitor 1, the DC filter capacitor 1 is connected to the inverter bridge 2, the inverter bridge 2 is connected to the three-phase inductor 4, and the three-phase inductor 4 is connected to the EM filter 5 , EM worker filter 5 is connected with contactor 6. The DC filter capacitor 1 is also connected to the input voltage sampling unit 3 , the input voltage sampling unit 3 is connected to the microcontroller 7 , and the microcontroller 7 is connected to the inverter bridge 2 and the contactor 6 respectively.

[0014] The microcontroller 7 is a single-chip microcomputer.

[0015] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than limit the protection scope of the present inve...

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PUM

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Abstract

The invention discloses a feedback device of an energy-saving elevator. The feedback device is characterized by comprising a DC filter capacitor, wherein the DC filter capacitor is connected with an inverter bridge, the inverter bridge is connected with a three-phase inductor, the three-phase inductor is connected with an EMI filter, and the EMI filter is connected with a contactor. The feedback device inverts remaining DC electric energy left after DC electric energy produced by a photovoltaic array of the elevator is consumed by the elevator into three-phase AC and feeds back the three-phase AC to a power grid, and the defect that the remaining electric energy left after DC electric energy produced by a photovoltaic array of an existing elevator is consumed by an elevator system can not be utilized and is wasted is overcome.

Description

technical field [0001] The invention belongs to the field of photovoltaic industry, and particularly relates to a feedback device for an energy-saving elevator. Background technique [0002] At present, in today's increasingly tense energy environment, there are often cases of power cuts in local areas. As a result, the elevator cannot be used normally, causing inconvenience to the user. After the DC power generated by the photovoltaic array of the existing solar elevator is used by the elevator system, the remaining power cannot be utilized, resulting in waste of power. Contents of the invention [0003] In order to overcome the above disadvantages, the purpose of the present invention is to provide a feedback device for an energy-saving elevator. [0004] Technical scheme of the present invention is: [0005] An energy-saving elevator feedback device, characterized in that it includes a DC filter capacitor (1), the DC filter capacitor (1) is connected to an inverter b...

Claims

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Application Information

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IPC IPC(8): H02J3/38
CPCH02J3/383Y02E10/56
Inventor 王玉洁
Owner 王玉洁