CN1475421A - Elevator control device - Google Patents
Elevator control device Download PDFInfo
- Publication number
- CN1475421A CN1475421A CNA031294847A CN03129484A CN1475421A CN 1475421 A CN1475421 A CN 1475421A CN A031294847 A CNA031294847 A CN A031294847A CN 03129484 A CN03129484 A CN 03129484A CN 1475421 A CN1475421 A CN 1475421A
- Authority
- CN
- China
- Prior art keywords
- traction motor
- elevator control
- control gear
- elevator
- position deviation
- Prior art date
- 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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Abstract
An elevator controller is composed of two towing motors, two counterweights, two inverters, encoder, current transformer, and controller which consists of one or more microprocessors to control two inverters and two towing motors for smooth running of elevator. Its advantages are use of low-power motor and low-capacity power module, and no or very-low-speed rotation of the rope wheel of the cage.
Description
Technical field
The present invention relates to a kind of elevator control gear.
Background technology
Elevator device all adopts single traction motor to drag elevator cage operation at present, and there is following shortcoming in this mode in the high speed elevator; (1) traction motor that needs high capacity, big moment to export; (2) inverter needs high-capacity power model; When (3) adopting 2: 1 traction ratios, the car diversion sheave is because high-speed operation can bring noise; When (4) grave accident taking place, elevator can not move, and salvage work carries out difficulty.
Summary of the invention
The purpose of this invention is to provide a kind of elevator control gear, it can make the capacity of traction motor unit diminish, and uses the power model of low capacity, and the car diversion sheave can not turn round or slowly run with the utmost point once in a while when normal operation, and enforcement salvage work is very convenient.
For achieving the above object, with reference to figure 1, elevator control gear of the present invention comprises traction motor 1,2, counterweight 7,8, inverter 9,10, coder 11,12, current transformer 13,14,15,16, controller 17.Controller 17 is made up of one or more microprocessors, carry out the calculating of vector variable voltage variable frequency according to the impulse singla of coder 11,12 and the electric current of two traction motors 1,2, output two independent pwm pulse signal, control two cover inverters, drive two traction motors, drag the elevator smooth running.
Elevator control gear of the present invention can be eliminated two asynchronous cumulative departures that cause of traction motor operation automatically; When two counterweight relative vertical position deviations exceed allowed band, can be according to the size of position deviation amount, the safety condition permission selected different modes to eliminate position deviation when the flat bed of lift car required with operation, when any traction motor can not move, can control another traction motor slow running, passenger in the car is implemented rescue.
Description of drawings
Fig. 1 is the constructional drawing of elevator control gear of the present invention.
The specific embodiment
At 1 shown in Fig. 1, the 2nd, traction motor, 3, the 4th, traction sheave, the 5th, the car diversion sheave, the 6th, lift car, 7, the 8th, counterweight, 9, the 10th, inverter, 11, the 12nd, coder, 13,14,15, the 16th, detect motor U separately, the current transformer of V phase current, the 17th, controller, it is a core component of the present invention, is made up of one or many places microprocessor, according to the requirement of elevator range ability and the correction of counterweight position deviation, produce two different traction motors 1, the instruction of 2 speed patterns, detect coder 11,12 signals are measured traction motor 1,2 electric current, reasonable distribution traction motor 1,2 torque command, carry out vector variable voltage variable frequency control computing on this basis, output two independent pwm pulse signal removes to trigger inverter 9,10, control traction motor 1 in real time, 2 moment output drags elevator smooth running up and down.
Under normal circumstances, the speed pattern instruction that controller 17 produces for traction motor 1,2 is identical, feedback according to coder 11,12 summation current transformers 13,14,15,16, two required moments of motor of reasonable distribution, carry out the computing of vector converter transformation, produce the operation of pwm signal control motor.The electric parameter of traction motor 1,2 (as resistance R, inductance L and the magnetic flux phi etc. of motor stator winding) deviation can cause that two motor operations are asynchronous, but because the driving governor of two motors is to be integrated on the controller 17, it is this that asynchronous to cause the rotation of car diversion sheave 5 be extremely small, in an entire run process, (comprise the starting acceleration, at the uniform velocity stop) with deceleration, car diversion sheave 5 can automatically restore to original position, and the cumulative departure that asynchronous operation causes can be eliminated automatically.
Under some abnormal condition, two counterweights 7,8 can produce relative displacement in vertical direction, when this displacement surpasses to a certain degree, must carry out location correction to counterweight 7,8.The present invention is according to the position offset of the detected counterweight 7,8 of corresponding counterweight position detecting device, can take following three kinds of modes to revise operation: (1) is according to position deviation, in the deceleration of elevator section, drive traction motor 1,2 operations with different speed commands and eliminate position deviation; (2) adopt identical speed, traction motor 1,2 moves with equidirectional; (3) traction motors are out of service, and another motor is revised operation.Specifically take which kind of mode to depend on safety condition permission when the langding accuracy of size, the lift car 6 of position deviation amount requires and moves.
When major failure takes place, damage as DC-to-AC converter 9 or 10, coder 11 or 12 does not have output signal, and motor short circuits etc. when elevator has only a traction motor, just can not be restarted operation, and the passenger just might be trapped in the lift car, and rescue is inconvenient.And the present invention is owing to there are two traction motors 1,2, any one can both individual operation, when a traction motor can not move, another traction motor can be that 2: 1 modes turn round with traction ratio just, this brings great convenience to installation and maintenance and rescue.
Claims (5)
1. elevator control gear, comprise traction motor, counterweight, inverter, current transformer, coder, controller, it is characterized in that: a controller of forming by one or more microprocessors, use vector variable voltage variable frequency technology, control two cover inverters simultaneously, drive two towing machines, drag elevator smooth running up and down.
2. elevator control gear as claimed in claim 1, it is characterized in that: when two counterweight relative vertical position deviations exceed allowed band, can be according to position deviation, the driving traction motor moves with different speed eliminates position deviation, and the steadily normal operation of lift car.
3. elevator control gear as claimed in claim 1 is characterized in that: when two counterweight relative vertical position deviations exceed allowed band, can drive two traction motors and move with equidirectional, to eliminate position deviation.
4. elevator control gear as claimed in claim 1 is characterized in that: when two counterweight relative vertical position deviations exceeded allowed band, it was out of service to control a traction motor, drove another motor and revised operation at a slow speed, to eliminate position deviation.
5. elevator control gear as claimed in claim 1 is characterized in that; When any traction motor can not move owing to breaking down, can another traction motor slow running of drive controlling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031294847A CN1289376C (en) | 2003-06-24 | 2003-06-24 | Elevator control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031294847A CN1289376C (en) | 2003-06-24 | 2003-06-24 | Elevator control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1475421A true CN1475421A (en) | 2004-02-18 |
| CN1289376C CN1289376C (en) | 2006-12-13 |
Family
ID=34153550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031294847A Expired - Fee Related CN1289376C (en) | 2003-06-24 | 2003-06-24 | Elevator control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1289376C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101618827B (en) * | 2008-07-01 | 2014-02-05 | 上海三菱电梯有限公司 | Lift control device and control method thereof |
| CN105253755A (en) * | 2015-11-25 | 2016-01-20 | 佛山住友富士电梯有限公司 | Novel double-counterweight elevator |
| CN105293224A (en) * | 2015-12-02 | 2016-02-03 | 金陵科技学院 | Intelligent control system and method for elevator |
| CN109956375A (en) * | 2017-12-22 | 2019-07-02 | 株式会社日立制作所 | Elevator control gear and elevator control method |
-
2003
- 2003-06-24 CN CNB031294847A patent/CN1289376C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101618827B (en) * | 2008-07-01 | 2014-02-05 | 上海三菱电梯有限公司 | Lift control device and control method thereof |
| CN105253755A (en) * | 2015-11-25 | 2016-01-20 | 佛山住友富士电梯有限公司 | Novel double-counterweight elevator |
| CN105293224A (en) * | 2015-12-02 | 2016-02-03 | 金陵科技学院 | Intelligent control system and method for elevator |
| CN109956375A (en) * | 2017-12-22 | 2019-07-02 | 株式会社日立制作所 | Elevator control gear and elevator control method |
| CN109956375B (en) * | 2017-12-22 | 2021-06-18 | 株式会社日立制作所 | Elevator control device and elevator control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1289376C (en) | 2006-12-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20061213 Termination date: 20190624 |
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| CF01 | Termination of patent right due to non-payment of annual fee |