CN201071232Y - Elevator control gear with electrical energy feedback function - Google Patents
Elevator control gear with electrical energy feedback function Download PDFInfo
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- CN201071232Y CN201071232Y CNU2007201089658U CN200720108965U CN201071232Y CN 201071232 Y CN201071232 Y CN 201071232Y CN U2007201089658 U CNU2007201089658 U CN U2007201089658U CN 200720108965 U CN200720108965 U CN 200720108965U CN 201071232 Y CN201071232 Y CN 201071232Y
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- energy feedback
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Abstract
The utility model relates to an elevator control device having power feedback function, which comprises a power supply, an elevator variable-frequency speed control braking circuit, a drag motor, an energy storage circuit and an energy consuming circuit, and further includes a power feedback system device, a protection circuit, a start circuit, a DC/AC conversion circuit, a waveform shaping circuit, a synchronous voltage sampling circuit and a harmonic control circuit. Accordingly, power feedback is achieved under the condition of not influencing an elevator operation control system so as to save power and improve operation work condition. The utility model has the advantage of remarkable power-saving benefit, and simple and convenient installation, and the power saving rate reaches 21-40%. The utility model can be widely used for power-saving reconstruction of prior elevator and for controlling new elevator.
Description
Technical field
The utility model relates to a kind of elevator control gear, particularly a kind of elevator control gear with electric energy feedback function.
Background technology
The mechanical energy (containing potential energy, kinetic energy) that elevator underloading in service is up, heavy duty is descending and the flat bed glancing impact produces, become direct current energy to be stored in the electric capacity of frequency conversion rate device DC loop with inverter converts by electrical motor, the electric energy that is transmitted back to cond is many more, capacitance terminal voltage is just high more, electric energy as untimely releasing capacitor storage, will produce the over voltage fault, frequency converter is quit work, elevator can't normally move.At present, domestic most frequency control elevator all adopts the method for the electric energy that stores in the resistance consumption electric capacity to prevent capacitance overvoltage, and (indivedual import elevators are in the configuration of the above power of 55KW, increased the energy absorbing transfer device), the weak point of its existence is, the resistance power consumption is big, not only reduced the efficient of system, a large amount of heats that resistance produces have also worsened the working environment of elevator control cabinet periphery, formed a new potential safety hazard, simultaneously, a lot of energy have been wasted again, the effect that out of reach is energy-conservation.
Summary of the invention
Its purpose of the utility model just is to provide a kind of elevator control gear with electric energy feedback function, has power savings preferably, and has improved the quality of received current effectively, has improved the efficient of system, and safety performance improves, and working environment improves.
The technical scheme that realizes above-mentioned purpose and take, comprise that power supply Ua, Ub, Uc export one the tunnel through elevator variable frequency speed governing braking circuit and connect dragging motor M, another road connects power consumption resistance after energy storage circuit, described elevator control gear also comprises electric energy feedback system device, comprise: protective circuit is connected in parallel on power consumption resistance front end; Start-up circuit, input end connects protective circuit; DC/AC change-over circuit, input end connect the moving circuit of revelation; Waveform shaping circuit, input end connects DC/AC change-over circuit, mouth power connection Ua, Ub, Uc; The synchronizing voltage sample circuit obtains synchronous voltage signal, and the input end power connection is from Ua, Ub, Uc, and input end one tunnel connects the DC/AC change-over circuit, one road welding wave shaping circuit; The harmonic wave control circuit, be connected in parallel on waveform shaping circuit and DC/AC shifting circuit this.
Compared with prior art the utlity model has following advantage:
1, because this device has adopted electric energy feedback system Design of device, thereby have energy-conservation characteristics, general power saving rate can reach 21%-46%, and power savings is particularly outstanding under following situation:
1) the high more elevator of floor, braking is frequent, and is energy-conservation many more;
2) elevator of newly installing and using, machinery inertial is big, and is energy-conservation many more;
3) the fast more elevator of speed, braking is frequent, and is energy-conservation many more;
4) use frequent more elevator, braking is frequent, and is energy-conservation many more.
2, because after this device adopted electric energy feedback system device, the non-resistance heat element, computer room temperature descends, and working environment improves, and can save the consumption of current of air conditioner in machine room, reaches the purpose of economize on electricity.
3, because this device has adopted independently electric energy feedback system device design, thereby in the process that realizes the elevator distribution, installation, extremely easy to use is installed on the elevator power consumption resistance, does not change, do not influence the operation control system of elevator.
4, suitable voltage class is extensive, and 220VAC, 380VAC, 480VAC, 660VAC etc. all can.
Description of drawings
Below in conjunction with accompanying drawing the utility model being done a step describes in detail.
Fig. 1 installs electric theory structure scheme drawing for this.
The specific embodiment
The signal of this device embodiment electricity theory structure, as shown in Figure 1, comprise that power supply Ua, Ub, Uc export one the tunnel through elevator variable frequency speed governing braking circuit and connect dragging motor M, another road connects power consumption resistance after energy storage circuit, described elevator control gear also comprises electric energy feedback system device, comprising:
Protective circuit is connected in parallel on power consumption resistance front end;
Start-up circuit, input end connects protective circuit;
The DC/AC change-over circuit, input end connects start-up circuit;
Waveform shaping circuit, input end connects DC/AC change-over circuit, mouth power connection Ua, Ub, Uc;
The synchronizing voltage sample circuit obtains synchronous voltage signal, and input end power connection Ua, Ub, Uc mouth one tunnel connect the DC/AC change-over circuit, one road welding wave shaping circuit;
The harmonic wave control circuit is connected in parallel between waveform shaping circuit and the DC/AC change-over circuit.
Described electric energy feedback system device also comprises failure diagnosis unit, and input end connects the DC/AC change-over circuit, and mouth connects start-up circuit.
Startup operational voltage value when described start-up circuit is started working is 630V.
Its principle of work is as follows:
When the elevator underloading up, descending and the flat bed glancing impact of heavy duty, dragging motor M is in generating state, the energy storage device dc voltage is raise, when voltage is elevated to 630V (trigger voltage of elevator power consumption resistance is generally about 680V), start-up circuit starts, the DC/AC change-over circuit is started working, obtain synchronous voltage signal by the synchronizing voltage sample circuit, pass on according to synchronous voltage signal DC/AC and to change circuit, direct current (DC) is converted to and electrical network synchronous waveform and the identical alternating current of amplitude, by waveform shaping circuit and harmonic wave control circuit, current shaping is become special quality pure wave synchronizing current, feed back to electrical network, use for other consumer of periphery.
When problems such as overcurrent, overload or faults itself occurring when electric energy feedback system device, the automatic semi-closure signal of failure diagnosis unit, start-up circuit do not start work, and electric energy feedback system device withdraws from the energy-conservation electric work energy of electric energy feedback automatically.
When the voltage of energy storage circuit rose to 680V, original power consumption resistance started automatically, and electric energy feedback system device is in not electricity-saving state.
This device can be used for the transformation of existing elevator, and also supporting applicable to new elevator control cabinet not only can saves energy, can also improve the quality of received current effectively, reaches higher current potential compatibility standard.
Claims (3)
1. elevator control gear with electric energy feedback function, comprise that power supply Ua, Ub, Uc export through elevator variable frequency rate speed governing braking circuit, one the tunnel connects dragging motor M, another road connects power consumption resistance after energy storage circuit, it is characterized in that, described elevator control gear also comprises electric energy feedback system device, comprising:
Protective circuit is connected in parallel on power consumption resistance front end;
Start-up circuit, input end connects protective circuit;
The DC/AC change-over circuit, input end connects start-up circuit;
Waveform shaping circuit, input end connects DC/AC change-over circuit, mouth power connection Ua, Ub, Uc;
The synchronizing voltage sample circuit obtains synchronous voltage signal, and input end power connection Ua, Ub, Uc mouth one tunnel connect the DC/AC change-over circuit, one road welding wave shaping circuit;
The harmonic wave control circuit is connected in parallel between waveform shaping circuit and the DC/AC change-over circuit.
2. a kind of elevator control gear with electric energy feedback function according to claim 1 is characterized in that, described electric energy feedback system device also comprises failure diagnosis unit, and input end connects the DC/AC change-over circuit, and mouth connects start-up circuit.
3. a kind of elevator control gear with electric energy feedback function according to claim 1 and 2 is characterized in that the startup operational voltage value when described start-up circuit is started working is 630V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201089658U CN201071232Y (en) | 2007-04-30 | 2007-04-30 | Elevator control gear with electrical energy feedback function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201089658U CN201071232Y (en) | 2007-04-30 | 2007-04-30 | Elevator control gear with electrical energy feedback function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201071232Y true CN201071232Y (en) | 2008-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201089658U Expired - Fee Related CN201071232Y (en) | 2007-04-30 | 2007-04-30 | Elevator control gear with electrical energy feedback function |
Country Status (1)
| Country | Link |
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| CN (1) | CN201071232Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101638199A (en) * | 2008-07-28 | 2010-02-03 | 上海斯堪亚电气调速设备有限公司 | Integrated device having energy feedback and blackout emergent functions |
| CN101456500B (en) * | 2008-12-31 | 2011-03-23 | 杭州浙大太阳电气有限公司 | Control system for energy feedback-brake unit integrated machine of frequency conversion elevator |
| CN101670966B (en) * | 2009-09-15 | 2011-05-18 | 雷富特节能科技（上海）有限公司 | Energy-saving feedback device of elevator with emergency flat layer |
| CN101746656B (en) * | 2008-12-16 | 2014-06-11 | 中国建筑科学研究院建筑机械化研究分院 | Elevator regenerated electricity utilizing system |
| CN109153538A (en) * | 2016-07-04 | 2019-01-04 | 株式会社日立制作所 | Elevator device |
-
2007
- 2007-04-30 CN CNU2007201089658U patent/CN201071232Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101638199A (en) * | 2008-07-28 | 2010-02-03 | 上海斯堪亚电气调速设备有限公司 | Integrated device having energy feedback and blackout emergent functions |
| CN101746656B (en) * | 2008-12-16 | 2014-06-11 | 中国建筑科学研究院建筑机械化研究分院 | Elevator regenerated electricity utilizing system |
| CN101456500B (en) * | 2008-12-31 | 2011-03-23 | 杭州浙大太阳电气有限公司 | Control system for energy feedback-brake unit integrated machine of frequency conversion elevator |
| CN101670966B (en) * | 2009-09-15 | 2011-05-18 | 雷富特节能科技（上海）有限公司 | Energy-saving feedback device of elevator with emergency flat layer |
| CN109153538A (en) * | 2016-07-04 | 2019-01-04 | 株式会社日立制作所 | Elevator device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080611 Termination date: 20110430 |