CN105775948B - A kind of elevator starter compensation method - Google Patents
A kind of elevator starter compensation method Download PDFInfo
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- CN105775948B CN105775948B CN201410823112.7A CN201410823112A CN105775948B CN 105775948 B CN105775948 B CN 105775948B CN 201410823112 A CN201410823112 A CN 201410823112A CN 105775948 B CN105775948 B CN 105775948B
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Abstract
The invention discloses a kind of elevator starter compensation method.The elevator includes apparatus for controlling elevator, traction machine, rotary encoder, band-type brake, steel wire rope, car and counterweight；After band-type brake is opened, following steps are carried out：A, apparatus for controlling elevator gives the torque that an amplitude is 0 to traction machine, until rotary encoder output reverse signal, and record preset time td；B, apparatus for controlling elevator gives the torque that an amplitude opposite with rolling direction is TrqA to traction machine, until rotary encoder output reverse signal, and record preset time tu；C, step A and step B n 1 time are repeated, n is that torque exports cycle-index；D, the data according to A step Cs calculate the uneven torque Trqw of car and counterweight, and the STCP starting compensatory torque that an amplitude is Trqw is given to traction machine.The present invention is in the case where that need not increase hardware cost, you can high-precision STCP starting compensatory is realized on conventional lift, and also installation and debugging are convenient, and operational effect is good, has good economic benefit.
Description
Technical field
The invention belongs to elevator control technology field, and in particular to a kind of elevator starter compensation method.
Background technology
Elevator is during day-to-day operation, and when band-type brake opening, elevator starter, car can be because of the weight of cage side and counterweight-side
Amount is uneven and car slipping (rollback or overshoot) phenomenon up or down occurs, so as to influence the boarding comfort of passenger, what is more
Passenger can be made to get a fright.Therefore, before band-type brake opening, it is necessary to a STCP starting compensatory torque is given to traction machine, plays band-type brake
Car stress balance realizes the smooth start of elevator without car slipping phenomenon occurs when opening.
At present in elevator industry, the method for presumption STCP starting compensatory torque mainly has two kinds：
The first, by installing the live load of weighing sensor measurement car in car, estimates cage side and counterweight-side
Weight it is uneven, so as to calculate STCP starting compensatory torque.But when car internal load skewness, weighing sensor
Precision just cannot be guaranteed, STCP starting compensatory torque deviation is occurred.In addition, when guide rail spacing is uneven or car load distribution
When uneven, it may occur that leading for car wherein side occurs larger extruding and increases frictional force between the two between boots and guide rail,
Actually required STCP starting compensatory torque is become big, and then have impact on STCP starting compensatory effect.
Second, high-precision encoder (such as sine and cosine encoder) is installed on the rotor of traction machine, when band-type brake is opened,
Speed control is carried out to motor by pi regulator, it is 0 rapidly to make its speed.Such a method effect is although good, but installation and debugging
It is extremely difficult, and need high-speed sampling and PI to control, its MICROCOMPUTER PROCESSING speed also needs very soon, so that cost input increases
Greatly, economic benefit is relatively low.
The content of the invention
It is an object of the invention to provide a kind of elevator starter compensation method, to solve the deficiencies in the prior art part.
To reach above-mentioned purpose, the present invention adopts the following technical scheme that：
A kind of elevator starter compensation method, the elevator include apparatus for controlling elevator, traction machine, rotary encoder, band-type brake,
Steel wire rope, car and counterweight；After band-type brake is opened, following steps are carried out：
A, apparatus for controlling elevator gives the torque that an amplitude is 0 to traction machine, until rotary encoder output reversion letter
Number, and record preset time td；
B, apparatus for controlling elevator gives the torque that an amplitude opposite with rolling direction is TrqA to traction machine, until rotation
Turn encoder output reverse signal, and record preset time tu；
C, step A and step B n-1 time are repeated, n is torque output cycle-index；
D, the data according to A-C steps calculate the uneven torque Trqw of car and counterweight, and give one to traction machine
Individual amplitude is Trqw STCP starting compensatory torque.
Preferably, the amplitude of the TrqA is more than the torque amplitude that travels at the uniform speed needed for the maximum allowable load of car.
Preferably, the present invention is to carry out step A and step B to traction machine in a pulsating sphere.But traction machine
The umber of pulse operated back and forth can not also be 1.
Preferably, the rotary encoder is incremental rotary encoder.
Further, the present invention can calculate car according to STCP starting compensatory torque Trqw and currently weigh.
The present invention is by using above-mentioned technical proposal, in the case where that need not increase hardware cost, you can in conventional lift
On realize high-precision STCP starting compensatory, and installation and debugging are convenient, and operational effect is good, has good economic benefit.
Brief description of the drawings
Fig. 1 is the implementation principle figure of the present invention.
The present invention is described in further detail in conjunction with drawings and examples.
Embodiment
Now with an electricity for including apparatus for controlling elevator, traction machine, rotary encoder, band-type brake, steel wire rope, car and counterweight
Illustrate a kind of elevator starter compensation method of the present invention exemplified by ladder.Wherein, the rotary encoder is rotated using increment type
Encoder, its output signal includes but is not limited to A phases and B phases, and provides：When A phase phases are ahead of B phase phases, traction machine
Rotating forward, car are up；When A phase phases lag behind B phase phases, traction machine reversion, car are descending.Further, the elevator is in full
Starting state is carried, i.e., cage side is than counterweight-side weight.Meanwhile n=5 is set, TrqA amplitude is needed for the maximum allowable load of car
1.5 times of the torque amplitude that travels at the uniform speed.
As shown in figure 1, after band-type brake opening, elevator starter, apparatus for controlling elevator monitors the rolling direction and car slipping of car
Distance, and carry out following steps：
A, apparatus for controlling elevator gives the torque that an amplitude is 0, the free downward car slipping of car to traction machine.Car is downward
Car slipping inverts traction machine, and control system receives B phase rising edge signals by rotary encoder first, because now A phases are low
Level, therefore can determine whether that B phases are ahead of A phases；Apparatus for controlling elevator receive traction machine hair turn, after elevator downlink information immediately to draging
Draw machine and give a torque TrqA opposite with rolling direction, while record 0 torque reference time td1；
B, for traction machine under torque TrqA effects, the heavier counterweight-side that is changed into of the cage side of script is heavier, and car is from downward
Car slipping is changed into up, and traction machine is changed into rotating forward from reversion, and rotary encoder feeds back B phase trailing edge signals, due to now A phases
For low level, therefore it can determine whether that A phases are ahead of B phases, controller knows that to cancel torque TrqA after traction machine reverse signal (i.e. heavy
0 torque of new output), and record torque TrqA preset times tu1；Now, torque output circulation is completed；
C, because traction machine loses torque TrqA effects, car recovers the cage side state more heavier than counterweight-side, and car is again
Secondary downward car slipping, step A and step B 4 times are so repeated, obtains td2、td3、td4And td5, and tu2、tu3、tu4And tu5；
D, the data according to A-C steps calculate the uneven torque Trqw of car and counterweight, and specific formula for calculation is as follows：
Trqw=TrqA × [(tu1+tu2+tu3+tu4+tu5)-(td1+td2+td3+td4)]÷[tu1+tu2+tu3+tu4+tu5)+
(td1+td2+td3+td4+td5)]
Apparatus for controlling elevator gives a torque Trqw to traction machine as STCP starting compensatory torque, then now cage side and right
The stress balance of heavy side, moreover, traction machine only carrys out back rotation in whole compensation process in a pulsating sphere, its is limited
Turning width makes passenger to perceive, and elevator is able to smooth start, and car slipping phenomenon will not occur, and it is comfortable to realize good starting
Sense.In addition, apparatus for controlling elevator can calculate the live load of car easily according to the uneven torque Trqw.
Claims (5)
1. a kind of elevator starter compensation method, the elevator includes apparatus for controlling elevator, traction machine, rotary encoder, band-type brake, steel
Cord, car and counterweight, it is characterised in that after band-type brake is opened, carry out following steps：
A, apparatus for controlling elevator gives the torque that an amplitude is 0 to traction machine, until rotary encoder output reverse signal, and
Record preset time td；
B, apparatus for controlling elevator gives the torque that an amplitude opposite with rolling direction is TrqA to traction machine, until rotation is compiled
Code device output reverse signal, and record preset time tu；
C, step A and step B n-1 time are repeated, n is torque output cycle-index；
D, the data according to A-C steps calculate the uneven torque Trqw of car and counterweight, and a width is given to traction machine
It is worth the STCP starting compensatory torque for Trqw.
2. a kind of elevator starter compensation method according to claim 1, it is characterised in that the amplitude of the TrqA is more than sedan-chair
The torque amplitude that travels at the uniform speed needed for the maximum allowable load in railway carriage or compartment.
3. a kind of elevator starter compensation method according to claim 1, it is characterised in that to draging in a pulsating sphere
Draw machine and carry out step A and step B.
4. a kind of elevator starter compensation method according to claim 1, it is characterised in that the rotary encoder is increment
Formula rotary encoder.
5. a kind of elevator starter compensation method according to claim 1, it is characterised in that according to STCP starting compensatory torque Trqw
Car is calculated currently to weigh.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410823112.7A CN105775948B (en) | 2014-12-22 | 2014-12-22 | A kind of elevator starter compensation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410823112.7A CN105775948B (en) | 2014-12-22 | 2014-12-22 | A kind of elevator starter compensation method |
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| CN105775948A CN105775948A (en) | 2016-07-20 |
| CN105775948B true CN105775948B (en) | 2018-01-30 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108675070B (en) * | 2018-05-07 | 2021-06-11 | 永大电梯设备（中国）有限公司 | Method for realizing elevator starting compensation |
| WO2020202249A1 (en) * | 2019-03-29 | 2020-10-08 | 三菱電機株式会社 | Elevator control device |
| CN110002298B (en) * | 2019-04-09 | 2021-09-14 | 深圳市海浦蒙特科技有限公司 | Elevator starting control method and system |
| CN110422716B (en) * | 2019-08-07 | 2021-03-23 | 康力电梯股份有限公司 | Automatic detection method for weighing-free starting time of elevator |
| CN110510465B (en) * | 2019-08-09 | 2022-02-18 | 深圳市海浦蒙特科技有限公司 | Forced drive elevator starting control method and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1037123A (en) * | 1988-03-18 | 1989-11-15 | 株式会社日立制作所 | Elevator control gear |
| JP4230139B2 (en) * | 2001-10-23 | 2009-02-25 | 三菱電機株式会社 | Elevator control device |
| CN103771206A (en) * | 2012-10-24 | 2014-05-07 | 日立电梯（中国）有限公司 | Method for compensating starting torque of elevator |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0712911B2 (en) * | 1988-01-20 | 1995-02-15 | 株式会社安川電機 | Control device for hoisting / lowering machine |
| JPH0780652B2 (en) * | 1990-02-28 | 1995-08-30 | 株式会社日立製作所 | Elevator start compensation device |
| JPH09290965A (en) * | 1996-04-26 | 1997-11-11 | Hitachi Ltd | Start compensating device of elevator |
| WO2012124067A1 (en) * | 2011-03-16 | 2012-09-20 | 三菱電機株式会社 | Rope-type gap adjusting device, and elevator control device |
-
2014
- 2014-12-22 CN CN201410823112.7A patent/CN105775948B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1037123A (en) * | 1988-03-18 | 1989-11-15 | 株式会社日立制作所 | Elevator control gear |
| JP4230139B2 (en) * | 2001-10-23 | 2009-02-25 | 三菱電機株式会社 | Elevator control device |
| CN103771206A (en) * | 2012-10-24 | 2014-05-07 | 日立电梯（中国）有限公司 | Method for compensating starting torque of elevator |
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| CN105775948A (en) | 2016-07-20 |
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