CN201190055Y - Elevator group controller - Google Patents
Elevator group controller Download PDFInfo
- Publication number
- CN201190055Y CN201190055Y CNU200820091887XU CN200820091887U CN201190055Y CN 201190055 Y CN201190055 Y CN 201190055Y CN U200820091887X U CNU200820091887X U CN U200820091887XU CN 200820091887 U CN200820091887 U CN 200820091887U CN 201190055 Y CN201190055 Y CN 201190055Y
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- Prior art keywords
- elevator
- frequency conversion
- bus
- group
- energy
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
Abstract
The utility model relates to an elevator group control device which comprises a plurality of elevator controllers, and each elevator controller comprises frequency conversion driving circuits for driving an elevator motor to rotate and a frequency conversion driving control unit for controlling the output of the frequency conversion driving circuit output, each frequency conversion driving circuit converts the alternating current of a power network into the direct current through a rectifying device and transmits the direct current to an inversion device through a direct current bus, an output terminal of the inversion device is connected with the elevator motor, and all the direct current buses in the frequency conversion driving circuits are connected in parallel. The utility model realizes the energy sharing in the elevator group. In addition, the utility model realizes the energy conservation and the rating reducing use of relative devices in the normal dispatching situation of the elevator by combining the structural characteristics of the elevator group.
Description
Technical field
The utility model relates to elevator control gear, more particularly, relates to a kind of elevator multiple control device.
Background technology
Elevator is a kind of instrument common in the modern society.Along with building up of a flickering skyscraper, common elevator can not satisfy operating needs.In order to realize that the high efficiency elevator dispatching distributes, promote the carrying capacity of elevator, more conditions needs group's logic control of elevator.
Usually, group's logic control of elevator is meant that same building carries out the uniform dispatching distribution with interior with the elevator more than, thereby improves the carrying capacity of elevator.Fig. 1 is the functional block diagram that group logic control realizes.Whether the position of each elevator in group's logic control elevator group, state (move and direction etc.), building be with the calling situation of interior each stop etc., judge, thereby form current only elevator dispatching scheme according to transport capacity in the unit time, passenger's wait time, a plurality of principles such as energy-conservation then.As shown in Figure 1, realize group's logic control of elevator by a plurality of elevator control units and group control device.During above-mentioned elevator group control was used, the group control device was used for the operation assignment logic of elevator is carried out comprehensive judgment processing, and each elevator control unit is identical with the single elevator control device of common control.
In above-mentioned elevator control gear, the frequency conversion drive of each elevator control unit partly adopts the structure of AC-DC-AC, and as shown in Figure 2, its rectification link is unidirectional, can only absorb energy from electrical network, and is converted into direct current.There is two states in each frequency conversion drive part in running process of elevator:
1, motor-operated running state: the DC link of frequency conversion drive part absorbs energy by rectifying device 21 from electrical network, and outputs to electrical motor by dc bus 23 and inverter 22, the driving motor operation;
2, generator operation state: the DC link of frequency conversion drive part absorbs feedback energy by inverter 22 from electrical motor, is depleted on brake unit and the resistance.
At this moment, every elevator has three kinds of states: halted state, motor-operated running state, generator operation state.When reality is used, in the group control group elevator that is in generator operation and motor-operated running state may be arranged simultaneously, like this, the energy of generation that is in the elevator of generating state directly is depleted on the braking resistor, and the elevator that is in motor-operated running state needs from electrical network to absorb energy, thereby has caused energy dissipation.
The utility model content
The technical problems to be solved in the utility model is that the defective at the energy dissipation in the existing elevator group control provides a kind of elevator multiple control device.
The technical scheme that its technical matters that solves the utility model adopts is: construct a kind of elevator multiple control device, comprise a plurality of electric life controllers, wherein each described electric life controller comprises frequency conversion drive loop that drives the elevator motor rotation and the Frequency Drive Control unit of controlling the output of described frequency conversion drive loop, each described frequency conversion drive loop is transformed to direct current (DC) and by dc bus described direct current (DC) is transferred to inverter by the alternating current of rectifying device with electrical network, the mouth of described inverter connects elevator motor, and the dc bus in all frequency conversion drive loops is connected in parallel.
In elevator multiple control device described in the utility model, each described electric life controller comprises group logic control element, and described group's logic control element is connected to the control output end of described Frequency Drive Control unit.
In elevator multiple control device described in the utility model, each described electric life controller comprises the elevator control unit that is used to control elevator door switch and/or floor demonstration, and described elevator control unit is connected with described group's logic control element and Frequency Drive Control unit.
In elevator multiple control device described in the utility model, each described electric life controller comprises energy absorption device, and the input end of described energy absorption device is connected to described dc bus.
In elevator multiple control device described in the utility model, described energy absorption device is direct catabiotic brake equipment, and the input end of described brake equipment is connected to described dc bus.
In elevator multiple control device described in the utility model, described energy absorption device is an energy back feed device, and the input end of described energy back feed device is connected to described dc bus, and mouth is connected to electrical network.Elevator multiple control device of the present utility model links together the dc bus of all elevators in the elevator group control, makes this group control device realize that energy is shared.In addition, this group control device has realized that in conjunction with the constructional feature of elevator group the energy-conservation and related device derate under the elevator normal consistency situation is used.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the functional block diagram that existing elevator group logic control realizes;
Fig. 2 is the structural representation in frequency conversion drive loop;
Fig. 3 is the structural representation of the utility model elevator multiple control device embodiment;
Fig. 4 is the structural representation of Fig. 3 middle controller.
The specific embodiment
The utility model according to the characteristics of elevator group control, from the angle of energy distribution, has changed the topological structure of group control on the basis of traditional group control logic.
As shown in Figure 3, be the structural representation of the utility model elevator multiple control device embodiment.This device comprises a plurality of electric life controllers 31, and these a plurality of electric life controllers 31 are respectively applied for the operation of an elevator of control, for example rising of elevator/following degradation.Wherein the input end of each electric life controller 31 is connected to electrical network, mouth is connected to the electrical motor that drives the elevator operation.
Each electric life controller 31 comprises frequency conversion drive loop 33 and controller 32, and wherein frequency conversion drive loop 33 is used to drive the rotation of elevator motor, and controller 32 comprises the Frequency Drive Control unit of the output that is used to control frequency conversion drive loop 33.The structure of AC-DC-AC is adopted in frequency conversion drive loop 33, is the forceful electric power loop (general domestic voltage class is for exchanging 380V) in the elevator device.The input end in each frequency conversion drive loop 33 is connected to electrical network, mouth is connected to elevator motor, it is transformed to direct current (DC) and by dc bus direct current (DC) is transferred to inverter by the alternating current of rectifying device with electrical network, and the mouth of inverter connects elevator motor, thereby drives the elevator motor operation.
In the present embodiment, the dc bus in all frequency conversion drive loops 31 is connected in parallel, and has realized that the energy of DC link in each elevator is shared.Because each elevator has three kinds of states: halted state, motor-operated running state, generator operation state, and may comprise the elevator that is in motor-operated running state and generator operation state simultaneously in the whole elevator group.When elevator is in generator operation, i.e. potential energy is converted into kinetic energy in the elevator decline process, and it raises DC bus-bar voltage by 33 feedbacks of frequency conversion drive loop, and this part energy will be delivered in other elevator control loops by the mode that is total to dc bus.Like this, realized in the whole apparatus for controlling elevator that energy shares, the energy that the elevator that is in generating state feeds back to dc bus can directly offer other elevators that are in motoring condition and use.
Above-mentioned elevator multiple control device, because having realized the energy of DC link shares, the rectifying part of each elevator (be the rectifying device in the frequency conversion drive loop, it is converted into direct current (DC) with alternating current from electrical network, promptly absorbs energy from electrical network) has also realized the uniform load distribution.In the control system such as non-common bus, when elevator is in motor-operated running state, its needed electric current obtains from the rectification link of self fully, and the elevator rectification link of other halted states or generator operation state then no current is passed through.When the DC link of each apparatus for controlling elevator links together, the whole energy consumption of system (electronic energy consumption-generating energy consumption) can be from the absorption energy of the rectifying part equilibrium of each apparatus for controlling elevator, the rectifying part of each elevator provides electric current to significantly reduce like this, thereby improved the derate of rectifying part power device, it is increased the service life.
As shown in Figure 4, the controller 32 among Fig. 3 can comprise group logic control element 321, elevator control unit 322 and Frequency Drive Control unit 323 when realizing.Wherein above-mentioned three unit interconnect.
Group's logic control element 321 is used for position, state (whether move and direction etc.), building according to each elevator in the elevator group with the calling situation of interior each floor etc., judge according to transport capacity in the unit time, passenger's wait time, a plurality of principles such as energy-conservation, dispatch distribution.This group logic control element 321 outputs to connected Frequency Drive Control unit 323 with control signal, thereby realizes the scheduling of elevator.Elevator control unit 322 is used to control elevator door switch and/or floor shows.Frequency Drive Control unit 323 is used to control the output in frequency conversion drive loop 33, thus the operation of control elevator.
In addition, also can comprise auxiliary peripheral hardware in the above-mentioned elevator multiple control device, finish elevator and normally move that these auxiliary peripheral hardwares include but not limited to energy back feed device, operation contactless switch, band-type brake contactless switch etc. with auxiliary.Wherein the input end of energy back feed device is connected to dc bus, mouth is connected to electrical network, when energy that the energy that feeds back to dc bus from the potential energy of elevator in the elevator group absorbs from electrical network greater than elevator, DC bus-bar voltage will raise gradually, after reaching predetermined threshold (for example 710V), energy back feed device startup work is with this part energy feedback grid.When specific implementation, energy back feed device can be concentrated, promptly use an energy back feed device in a group control device.
The utility model is compared with traditional group control system, in the constant situation of carriage lift efficient, and profit Characteristics with group control have realized energy saving.
Claims (6)
1, a kind of elevator multiple control device, comprise a plurality of electric life controllers, wherein each described electric life controller comprises frequency conversion drive loop that drives the elevator motor rotation and the Frequency Drive Control unit of controlling the output of described frequency conversion drive loop, each described frequency conversion drive loop is transformed to direct current (DC) and by dc bus described direct current (DC) is transferred to inverter by the alternating current of rectifying device with electrical network, the mouth of described inverter connects elevator motor, it is characterized in that the dc bus in all frequency conversion drive loops is connected in parallel.
2, elevator multiple control device according to claim 1 is characterized in that, each described electric life controller comprises group logic control element, and described group's logic control element is connected to the control output end of described Frequency Drive Control unit.
3, elevator multiple control device according to claim 2, it is characterized in that, each described electric life controller comprises the elevator control unit that is used to control elevator door switch and/or floor demonstration, and described elevator control unit is connected with described group's logic control element and Frequency Drive Control unit.
4, elevator multiple control device according to claim 1 is characterized in that, each described electric life controller comprises energy absorption device, and the input end of described energy absorption device is connected to described dc bus.
5, elevator multiple control device according to claim 4 is characterized in that, described energy absorption device is direct catabiotic brake equipment, and the input end of described brake equipment is connected to described dc bus.
6, elevator multiple control device according to claim 4 is characterized in that, described energy absorption device is an energy back feed device, and the input end of described energy back feed device is connected to described dc bus, and mouth is connected to electrical network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820091887XU CN201190055Y (en) | 2008-01-23 | 2008-01-23 | Elevator group controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820091887XU CN201190055Y (en) | 2008-01-23 | 2008-01-23 | Elevator group controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201190055Y true CN201190055Y (en) | 2009-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820091887XU Expired - Lifetime CN201190055Y (en) | 2008-01-23 | 2008-01-23 | Elevator group controller |
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| Country | Link |
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| CN (1) | CN201190055Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103121609A (en) * | 2013-03-10 | 2013-05-29 | 苏州大学 | Elevator group control method |
| CN106744224A (en) * | 2016-12-29 | 2017-05-31 | 上海隆电气有限公司 | A kind of two frequency converters of control for escalator |
-
2008
- 2008-01-23 CN CNU200820091887XU patent/CN201190055Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103121609A (en) * | 2013-03-10 | 2013-05-29 | 苏州大学 | Elevator group control method |
| CN103121609B (en) * | 2013-03-10 | 2014-07-16 | 苏州大学 | Elevator group control method |
| CN106744224A (en) * | 2016-12-29 | 2017-05-31 | 上海隆电气有限公司 | A kind of two frequency converters of control for escalator |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160225 Address after: Wuzhong District Wuzhong Economic Development Zone, Suzhou City, Jiangsu province 215000 Wang Xiang Shan Industrial Park Road on the north side of friends Patentee after: Suzhou Huichuan Technology Co.,Ltd. Patentee after: Shenzhen Inovance Technology Co., Ltd. Address before: Suzhou Industrial Park Suzhou city Jiangsu province 215006 Tong Road No. 25 Tak Industrial Park Building 3 Huichuan Patentee before: Suzhou Monarch Control Technology Co., Ltd. Patentee before: Shenzhen Inovance Technology Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20090204 |
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| CX01 | Expiry of patent term |