CN203048376U - Energy controlling device for operation of elevator - Google Patents
Energy controlling device for operation of elevator Download PDFInfo
- Publication number
- CN203048376U CN203048376U CN2013200605842U CN201320060584U CN203048376U CN 203048376 U CN203048376 U CN 203048376U CN 2013200605842 U CN2013200605842 U CN 2013200605842U CN 201320060584 U CN201320060584 U CN 201320060584U CN 203048376 U CN203048376 U CN 203048376U
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- Prior art keywords
- energy
- elevator
- frequency converter
- isolation diode
- capacitor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Elevator Control (AREA)
- Inverter Devices (AREA)
Abstract
The utility model relates to an energy controlling device for operation of an elevator. The energy controlling device for operation of the elevator is composed of a frequency converter and an energy feedback device. The frequency converter is composed of a rectifier bridge DT, an inverter bridge IGBT1 and a capacitor C1 arranged in a direct current link. The energy feedback device comprises an intelligent power module IGBT2, an isolation diode DI, an isolation diode D2, an energy capacitor C2 and a filter FC. The energy controlling device for operation of the elevator can effectively recycle and control regenerated energy produced when the elevator operates by detecting voltage of the energy storing capacitor C1 of the direct link of the frequency converter in real time. When the detected voltage of the capacitor is higher than a threshold, the feedback device works. An inverter arranged in the energy controlling device can invert direct current voltage into three-phase alternating current voltage which is afterwards fed back to a power grid. Excessive energy is recycled to achieve the effects of saving energy and protecting environment.
Description
Technical field
The utility model relates to a kind of elevator energy in service amount control device.
Background technology
Have maximum mechanical kinetic energy after elevator startup operation reaches command speed, elevator will progressively slow down till the elevator stop motion before arriving destination layer, is the process that elevator traction machine discharges mechanical kinetic energy.Elevator still is a potential energy load.Car and counterbalancing piece just have of poor quality, produce mechanical potential (the elevator heavy duty is descending and underloading is up) when making the elevator operation.
Elevator unnecessary mechanical energy in service (containing potential energy and kinetic energy) becomes direct current energy to be stored in the electric capacity in the frequency converter DC loop by towing machine with inverter converts, cause capacitance voltage to raise gradually.The electric energy that is transmitted back in the electric capacity is more many, and capacitance voltage is just more high.Electric energy as untimely releasing capacitor stores will produce the overvoltage fault, causes frequency converter to quit work, and elevator can't normally move.
At present, domestic most frequency control elevator all adopts the method for store electrical energy in the braking resistor consumption electric capacity to prevent the electric capacity overvoltage.But the resistance power consumption has not only reduced the efficient of system, and a large amount of heats that resistance produces have also worsened the environment of machine room.
Summary of the invention
The purpose of this utility model is to solve regenerated energy handling problem in the running process of elevator, and a kind of device that can reclaim elevator regenerated energy feedback grid is provided---and elevator is in service can amount control device.
The utility model, constituted by frequency converter and energy back feed device, described frequency converter is by rectifier bridge DT, inverter bridge IGBT1 and the capacitor C 1 that is arranged in the DC link constitute, described energy back feed device comprises Intelligent Power Module IGBT2, isolation diode Dl and D2, reservoir capacitance C2 and filter FC, described isolation diode Dl and D2 are connected to the input end of Intelligent Power Module IGBT2, reservoir capacitance C2 is connected between two input ends of Intelligent Power Module IGBT2, the positive pole of isolation diode Dl connects the positive pole in the frequency converter DC link, and the negative pole of isolation diode D2 connects the negative pole in the frequency converter DC link.
The utility model, when elevator is in generating state, the vdc that is stored in frequency converter cond C1 is higher than when setting threshold values, is three plase alternating current through isolation diode Dl and D2, reservoir capacitance C2, Intelligent Power Module IGBT2 inversion, handles feedback grid behind the harmonic wave through filter FC.
The utility model, described energy back feed device arranges contactless switch KM1, and three plase alternating current is handled harmonic wave by contactless switch KM1 feedback grid through filter FC.When IGBT2 worked, KM1 is closed to be connected, and the alternating current feedback grid is arranged, and when IGBT2 does not work, disconnected a buffer action during no alternating current feedback.
The utility model is recycled excess energy, reaches effects of energy conservation and environmental protection.Its principle of work is that energy back feed device is higher than threshold values by detecting the voltage of the reservoir capacitance C1 of frequency converter DC link in real time when detecting capacitance voltage, feedback device work, inversion device by in installing becomes three-phase alternating voltage with vdc another mistake, feeds back to electrical network; Be lower than threshold values when detecting capacitance voltage, feedback device is not worked.
When the utility model, circuit connect, feedback device input end DC+/DC-connect respectively the dc output end of frequency converter+/-; Ac input end R, S, T that feedback device mouth R, S, T connect frequency converter respectively get final product.
Technical characterictic of the present utility model shows: elevator is in operational process, and towing machine is operated in the conversion of electronic power consumption state and generating state always; The utility model with a kind of new solution, has been recycled the regenerated energy that the elevator generating state produces rationally and effectively, can reach the effect of energy-conservation 20%-40%.In addition, because the brakeless resistance heating element, computer room temperature descends, and can save the consumption of current of air conditioner in machine room and cooling system.In many occasions, the consumption of current of saving air-conditioning and cooling system tends to bring bigger power savings.
Description of drawings
Fig. 1 is schematic circuit diagram of the present utility model.Fig. 2 is energy back feed device principle sketch.
Among the figure: 1, frequency converter; 2, energy back feed device; M, traction motor; IGBT1, inverter bridge; IGBT2, Intelligent Power Module (being the feedback device inversion unit); DT, rectifier bridge; C1, frequency converter DC link electric capacity; C2, feedback device electric capacity; FC, filter KM1, contactless switch; D1, D2, feedback device isolation diode, VT1-6, inversion device (inverter bridge of being formed by 6 insulated gate bipolar transistors).Arrow A and B are depicted as the energy flow direction.
The specific embodiment
A kind of elevator energy in service amount control device, constituted by frequency converter 1 and energy back feed device 2, described frequency converter 1 is by rectifier bridge DT, inverter bridge IGBT1 and the capacitor C 1 that is arranged in the DC link constitute, described energy back feed device 2 comprises Intelligent Power Module IGBT2, isolation diode Dl and D2, reservoir capacitance C2 and filter FC, described isolation diode Dl and D2 are connected to the input end of Intelligent Power Module IGBT2, reservoir capacitance C2 is connected between two input ends of Intelligent Power Module IGBT2, the positive pole of isolation diode Dl connects the positive pole in the frequency converter DC link, and the negative pole of isolation diode D2 connects the negative pole in the frequency converter DC link.Intelligent Power Module IGBT2 mainly is made up of VT1-VT6.When elevator is in generating state, the vdc that is stored in frequency converter cond C1 is higher than when setting threshold values, be three plase alternating current through isolation diode Dl and D2, reservoir capacitance C2, Intelligent Power Module IGBT2 inversion, handle feedback grid behind the harmonic wave through filter FC.Described energy back feed device arranges contactless switch KM1, and three plase alternating current is handled harmonic wave by contactless switch KM1 feedback grid through filter FC.
Present embodiment, IGBT2 Intelligent Power Module are the most key parts, and it can be the direct current energy inversion three phase current and the loopback electrical network synchronous with AC network effectively.Diode Dl and D2 are the necessary elements of guaranteeing the elevator energy feedback device safe operation.Effectively prevent by the DC link charging of feedback device to frequency converter.High-order harmonic filtering device FC mainly contains inductance L and capacitor C is formed, and the higher harmonic current that can stop the IGBT2 Intelligent Power Module to produce effectively enters electrical network, therefore can improve the Electro Magnetic Compatibility of energy back feed device.
In addition, the control circuit that is constituted by single chip microcomputer, programmable logic chip, peripheral signal sampler etc., control Intelligent Power Module IGBT2 that can be orderly works under PWM (pulse duration modulation) state, guarantees direct current energy feedback timely and realizes regeneration smoothly.
Claims (2)
1. an elevator is in service can amount control device, it is characterized in that: constituted by frequency converter (1) and energy back feed device (2), described frequency converter is by rectifier bridge DT, inverter bridge IGBT1 and the capacitor C 1 that is arranged in the DC link constitute, described energy back feed device comprises Intelligent Power Module IGBT2, isolation diode Dl and D2, reservoir capacitance C2 and filter FC, described isolation diode Dl and D2 are connected to the input end of Intelligent Power Module IGBT2, reservoir capacitance C2 is connected between two input ends of Intelligent Power Module IGBT2, the positive pole of isolation diode Dl connects the positive pole in the frequency converter DC link, and the negative pole of isolation diode D2 connects the negative pole in the frequency converter DC link.
2. elevator according to claim 1 is in service can amount control device, and it is characterized in that: described energy back feed device arranges contactless switch KM1, and three plase alternating current is handled harmonic wave by contactless switch KM1 feedback grid through filter FC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200605842U CN203048376U (en) | 2013-02-01 | 2013-02-01 | Energy controlling device for operation of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200605842U CN203048376U (en) | 2013-02-01 | 2013-02-01 | Energy controlling device for operation of elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203048376U true CN203048376U (en) | 2013-07-10 |
Family
ID=48731355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200605842U Expired - Lifetime CN203048376U (en) | 2013-02-01 | 2013-02-01 | Energy controlling device for operation of elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203048376U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106241523A (en) * | 2016-08-30 | 2016-12-21 | 成都英格瑞德电气有限公司 | A kind of lift appliance of energy storing and electricity generating |
| CN106276437A (en) * | 2016-08-30 | 2017-01-04 | 成都英格瑞德电气有限公司 | A kind of efficiently energy-saving device of elevator |
-
2013
- 2013-02-01 CN CN2013200605842U patent/CN203048376U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106241523A (en) * | 2016-08-30 | 2016-12-21 | 成都英格瑞德电气有限公司 | A kind of lift appliance of energy storing and electricity generating |
| CN106276437A (en) * | 2016-08-30 | 2017-01-04 | 成都英格瑞德电气有限公司 | A kind of efficiently energy-saving device of elevator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |
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| CX01 | Expiry of patent term |