CN202449702U - Photovoltaic energy-saving elevator - Google Patents
Photovoltaic energy-saving elevator Download PDFInfo
- Publication number
- CN202449702U CN202449702U CN2012200205436U CN201220020543U CN202449702U CN 202449702 U CN202449702 U CN 202449702U CN 2012200205436 U CN2012200205436 U CN 2012200205436U CN 201220020543 U CN201220020543 U CN 201220020543U CN 202449702 U CN202449702 U CN 202449702U
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- energy
- elevator
- frequency converter
- photovoltaic
- electric
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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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Abstract
The utility model discloses a photovoltaic energy-saving elevator which comprises a frequency converter for driving an elevator main body to move up and down, wherein a main motor of the elevator is connected with an output end of the frequency converter; an energy storage unit is connected with a direct current bus bar of the frequency converter; when the running potential energy of the elevator is converted into electric energy through the main motor, the electric energy from the direct current bus bar of the frequency converter is received by the energy storage unit; and the energy storage unit is also connected with a solar charging unit which is used for converting solar energy into the electric energy. By adopting the energy storage unit connected with the direct current bus bar of the frequency converter according to the utility model, the electric energy converted from the potential energy of the elevator originally consumed on a braking resistor is utilized and the solar energy is converted into the electric energy and stored in the energy storage unit through a photovoltaic cell panel, so that the energy use ratio of the elevator is increased and the energy-saving and environment-friendly effect of an elevator power supply system is further promoted by virtue of the natural solar energy. The photovoltaic energy-saving elevator is widely applied to the field of energy conservation of the elevator.
Description
Technical field
The utility model relates to the elevator energy-saving technology, especially a kind of photovoltaic energy-conserving elevator.
Background technology
The elevator that uses on the market now all is through mains-supplied, and elevator is a kind of traction system that has counterbalancing, according to conservation of energy theorem; The car of elevator is in the process of operation up and down; It is underloadings that some times are always arranged, and just has unnecessary potential energy to be converted into electric energy when up, and some time is heavy duty or fully loaded; Be converted into electric energy with regard to having unnecessary kinetic energy when descending, the regenerating braking energy that produces under these two kinds of situations must discharge.Owing to do not have delivery pathways, have only through the elevator drive main body to be converted into the control system that electric energy gets into elevator, and original electric system electric power storage ability be very limited, can not unrestrictedly bear the accumulation of electric energy.In order to protect lift facility safety, only discharge.Traditional way is to let electric current flow through high-performance resistance, electric energy is converted into heat energy, thereby electric energy is burnt in vain.
Some elevator companies are also arranged at present at the research and development Solar-energy elevator both at home and abroad, it mainly is to utilize conversion of solar energy to be the power supply of electric energy as elevator, and instead of part city electric energy reaches the purpose of part energy-conserving and environment-protective.Mainly be to utilize storage battery to be connected to its electrically-charged solar-energy photo-voltaic cell, the direct current (DC) of storage battery output is exported through power output terminal after becoming alternating current through inverter.Defectives such as the electric power storage battery exists charging in intervals long, and service life is short, and the battery of damage is big for environment pollution.
The utility model content
The technical matters that the utility model will solve is: a kind of photovoltaic energy-conserving elevator is provided, and this energy-conserving elevator can store the electric energy of elevator potential energy converting and energy and the electric energy of solar energy converting in the lump, reaches energy-conservation purpose.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted is:
A kind of photovoltaic energy-conserving elevator; Comprise the frequency converter that drives the up-downgoing of elevator body; The mouth of frequency converter is connected with the main motor of elevator; The dc bus of said frequency converter is connected with an energy-storage units, and energy-storage units receives from the electric energy on the frequency changer direct current bus when main motor is electric energy with the potential energy converting and energy of elevator operation, and it is the solar charging electric unit of electric energy with solar energy converting that said energy-storage units also is connected with one.
Further as preferred embodiment, said energy-storage units comprises a DC/DC changer and a closed-center system, and said closed-center system is connected with the dc bus of frequency converter through a DC/DC changer.
Further as preferred embodiment, said closed-center system is storage battery or ultracapacitor.
Further as preferred embodiment, the dc bus of said frequency converter also is connected with the braking resistor that consumes dump energy through a brake module.
Further as preferred embodiment, said solar recharging unit comprises the 2nd DC/DC changer and photovoltaic battery panel, and said photovoltaic battery panel passes to closed-center system with the electric energy of conversion through the 2nd DC/DC changer.
The beneficial effect of the utility model is: the utility model is through adopting and frequency changer direct current bus bonded assembly energy-storage units; To consume the electrical usage of the elevator potential energy converting and energy on braking resistor originally on the one hand; Be electric energy with solar energy converting also on the other hand and be stored in the energy-storage units through photovoltaic battery panel; Improved the energy utilization efficiency of elevator like this, and further promoted the effect of elevator supply energy saving of system environmental protection by natural solar power.
Description of drawings
Be described further below in conjunction with the specific embodiment of accompanying drawing the utility model:
Fig. 1 is the structured flowchart of the utility model photovoltaic energy-conserving elevator;
Fig. 2 is the schematic circuit diagram of the utility model photovoltaic energy-conserving elevator embodiment.
The specific embodiment
The utility model elevator has increased by a two-way energy recovery unit in the traditional elevator electric power system: the unnecessary power storage that on the one hand elevator master motor is produced is in energy-storage units, and the energy at energy-storage units under the condition of electric power system energy shortage feeds back on the dc bus of electric power system on the other hand.In addition, energy-storage units also is connected with a unidirectional electrically-charged solar charging electric unit.
See figures.1.and.2; A kind of photovoltaic energy-conserving elevator comprises the frequency converter 1 that drives the up-downgoing of elevator body, and the input end of frequency converter 1 is connected with the alternating current of civil power; The rectification unit of alternating current in frequency converter 1 becomes direct current (DC); And high power capacity electric capacity, inverter in frequency converter 1 convert alternating current into, and the controller of frequency converter 1 makes it to be superposed to the alternating current of near sinusoidal ripple through the amplitude and the pulsewidth of control output square wave; Drive and exchange main motor 2, correspondent voltage and running frequency are provided for main motor 2.The dc bus of said frequency converter 1 is connected with an energy-storage units 3; Energy-storage units 3 receives from the electric energy on frequency converter 1 dc bus when main motor 2 is electric energy with the potential energy converting and energy of elevator operation; For example; In elevator was descending, the electric energy that main motor 2 produces can be recovered to energy-storage units 3 through dc bus; It is the solar charging electric unit 4 of electric energy with solar energy converting that said energy-storage units 3 also is connected with one.
As embodiment preferred, said energy-storage units 3 comprises a DC/DC changer 31 and closed-center system 32, and said closed-center system 32 is connected with the dc bus of frequency converter 1 through a DC/DC changer 31.
Preferably, said closed-center system 32 is storage battery or ultracapacitor.Ultracapacitor reclaims the electric energy that main motor produces when elevator is descending, energy stored is fed back in the frequency converter 1 of elevator when waiting ascending for elevator again, rather than slatterns through braking resistor as traditional elevator.
Preferably, said solar charging electric unit 4 comprises the 2nd DC/DC changer 41 and photovoltaic battery panel 42, and said photovoltaic battery panel 42 passes to closed-center system 32 with the electric energy of conversion through the 2nd DC/DC changer 41.The 2nd DC/DC changer 41 provides actv. power generation conditions on the one hand photovoltaic battery panel 42; Be saved to closed-center system 32 to the transformation of electrical energy of photovoltaic battery panel 42 conversions to suitable voltage on the other hand.
If the DC/DC converter using is non-isolation type DC/DC changer, voltage difference is unfavorable for control otherwise dutycycle is too for a short time apart from can not be too big between the voltage three of DC bus-bar voltage/closed-center system energy-storage battery voltage/photovoltaic battery panel; Suggestion rated voltage separately differs in 5 times: give an example DC bus-bar voltage with practical application: 310V; Energy-storage battery voltage: 60V; Photovoltaic battery panel voltage: 12V.
Like this, closed-center system 32 can be realized the store energy of two aspects, the one, charge into closed-center system 32 after the DC bus-bar voltage energy conversion with elevator potential energy generating lifting; The 2nd, give closed-center system 32 chargings photovoltaic battery panel 42 electricity.The energy of storage discharges and supplies the main motor 2 of frequency converter 1 driving under the condition of the dc bus needs of frequency converter 1 in the closed-center system 32.No longer as traditional elevator, consume, but store recycling through the mode of braking resistor with heat.
Further as preferred embodiment, the dc bus of said frequency converter 1 also is connected with the braking resistor 52 that consumes dump energy through a brake module 51.Braking resistor 52 consumes the energy that closed-center system 32 can not in time reclaim through the control of brake module 51 through heating, to guarantee that elevator normally moves.
More than be that preferable enforcement to the utility model specifies; But the utility model is created and is not limited to said embodiment; Those of ordinary skill in the art can also make all equivalent variations or replacement under the prerequisite of the utility model spirit, distortion that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (5)
1. photovoltaic energy-conserving elevator; Comprise the frequency converter (1) that drives the up-downgoing of elevator body; The mouth of frequency converter (1) is connected with the main motor (2) of elevator; It is characterized in that: the dc bus of said frequency converter (1) is connected with an energy-storage units (3); Energy-storage units (3) receives from the electric energy on frequency converter (1) dc bus when main motor (2) is electric energy with the potential energy converting and energy of elevator operation, and it is the solar charging electric unit (4) of electric energy with solar energy converting that said energy-storage units (3) also is connected with one.
2. a kind of photovoltaic energy-conserving elevator according to claim 1; It is characterized in that: said energy-storage units (3) comprises a DC/DC changer (31) and closed-center system (32), and said closed-center system (32) is connected with the dc bus of frequency converter (1) through a DC/DC changer (31).
3. a kind of photovoltaic energy-conserving elevator according to claim 2 is characterized in that: said closed-center system (32) is storage battery or ultracapacitor.
4. according to each described a kind of photovoltaic energy-conserving elevator of claim 1 to 3, it is characterized in that: the dc bus of said frequency converter (1) also is connected with the braking resistor (52) that consumes dump energy through a brake module (51).
5. a kind of photovoltaic energy-conserving elevator according to claim 4; It is characterized in that: said solar charging electric unit (4) comprises the 2nd DC/DC changer (41) and photovoltaic battery panel (42), and said photovoltaic battery panel (42) passes to closed-center system (32) with the electric energy of conversion through the 2nd DC/DC changer (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200205436U CN202449702U (en) | 2012-01-17 | 2012-01-17 | Photovoltaic energy-saving elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200205436U CN202449702U (en) | 2012-01-17 | 2012-01-17 | Photovoltaic energy-saving elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202449702U true CN202449702U (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200205436U Expired - Fee Related CN202449702U (en) | 2012-01-17 | 2012-01-17 | Photovoltaic energy-saving elevator |
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| CN (1) | CN202449702U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072854A (en) * | 2013-01-15 | 2013-05-01 | 福建省特种设备检验研究院 | Elevator energy-saving device based on solar technology and operation control method thereof |
| CN103441521A (en) * | 2013-08-31 | 2013-12-11 | 深圳先进储能材料国家工程研究中心有限公司 | Elevator energy recovery ensuring system |
| CN105692368A (en) * | 2016-04-08 | 2016-06-22 | 天津天为电梯有限公司 | Scenery energy-saved elevator control device |
| CN105991059A (en) * | 2015-01-29 | 2016-10-05 | 乐金电子研发中心(上海)有限公司 | Inverter system and method of reducing capacitance of inverter DC bus |
| CN106655262A (en) * | 2016-11-25 | 2017-05-10 | 上海工程技术大学 | Elevator energy recycling wireless charging system and method |
| CN110224421A (en) * | 2019-06-18 | 2019-09-10 | 北京索德电气工业有限公司 | Distributed energy storage elevator control system and topological structure |
-
2012
- 2012-01-17 CN CN2012200205436U patent/CN202449702U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072854A (en) * | 2013-01-15 | 2013-05-01 | 福建省特种设备检验研究院 | Elevator energy-saving device based on solar technology and operation control method thereof |
| CN103072854B (en) * | 2013-01-15 | 2014-08-13 | 福建省特种设备检验研究院 | Elevator energy-saving device based on solar technology and operation control method thereof |
| CN103441521A (en) * | 2013-08-31 | 2013-12-11 | 深圳先进储能材料国家工程研究中心有限公司 | Elevator energy recovery ensuring system |
| CN103441521B (en) * | 2013-08-31 | 2015-05-20 | 深圳先进储能材料国家工程研究中心有限公司 | Elevator energy recovery ensuring system |
| CN105991059A (en) * | 2015-01-29 | 2016-10-05 | 乐金电子研发中心(上海)有限公司 | Inverter system and method of reducing capacitance of inverter DC bus |
| CN105692368A (en) * | 2016-04-08 | 2016-06-22 | 天津天为电梯有限公司 | Scenery energy-saved elevator control device |
| CN105692368B (en) * | 2016-04-08 | 2017-09-01 | 天津天为电梯有限公司 | A kind of honourable energy-conserving elevator control device |
| CN106655262A (en) * | 2016-11-25 | 2017-05-10 | 上海工程技术大学 | Elevator energy recycling wireless charging system and method |
| CN106655262B (en) * | 2016-11-25 | 2019-01-18 | 上海工程技术大学 | A kind of elevator energy recycling wireless charging system |
| CN110224421A (en) * | 2019-06-18 | 2019-09-10 | 北京索德电气工业有限公司 | Distributed energy storage elevator control system and topological structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20190117 |
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| CF01 | Termination of patent right due to non-payment of annual fee |