CN103373649A - Elevator weighing value diagnosing and revising method - Google Patents
Elevator weighing value diagnosing and revising method Download PDFInfo
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- CN103373649A CN103373649A CN2012101289823A CN201210128982A CN103373649A CN 103373649 A CN103373649 A CN 103373649A CN 2012101289823 A CN2012101289823 A CN 2012101289823A CN 201210128982 A CN201210128982 A CN 201210128982A CN 103373649 A CN103373649 A CN 103373649A
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Abstract
The invention discloses an elevator weighing value diagnosing and revising method. By means of the elevator weighing value diagnosing and revising method, parameters involved in torque calculation of sharing parts of load can be automatically revised according to weighing values and torque current values output by a weighing device when an elevator is started. After the parameters are revised, the elevator is started again, and torque of the sharing parts of the load can be calculated by a torque control device on the basis of the revised parameters, so that a drag motor can generate torques in advance to accurately compensate imbalanced moment between a lift car and a counter weight after a band-type brake is opened. By means of the elevator weighing value diagnosing and revising method, influence on torque calculation of the sharing parts of the load can be avoided when the weighing device, the drag motor and the like change, and starting performance of the elevator can be ensured when cost is not increased.
Description
Technical field
The present invention relates to the elevator control field, particularly relate to a kind of for the weighing value diagnosis modification method with the elevator of meausring apparatus.
Background technology
Elevator now generally has the load that a load weighing device detects lift car, add to traction motor output torque corresponding to the torque of weighing value, compensates the unbalanced moment that the weight difference because of car and counterweight produces when elevator starts.When band-type brake was opened, above-mentioned unbalanced moment will be offset by the torque that traction motor produces, and the moment that is unlikely to after band-type brake is opened is impacted car.This action generally is referred to as to start weighs, and impacts thereby generally finish the above-mentioned startup startup that action suppresses elevator of weighing by the torque control unit in the elevator device.
Fig. 1 has showed a kind of general elevator device, and this elevator device has: a car; A counterweight; One drives rope sheave; One connects car and counterweight and is wound on the steel rope that drives on the rope sheave; A rectifier that three-phase alternating current is become DC current; DC current with rectifier output becomes the inverter of alternating current; Basis produces one from the three plase alternating current of inverter output and drives and drive rope sheave and rotate together the traction motor that car and counterweight are moved up and down; One places the car desired location and for detection of the meausring apparatus of car load; Current sensor for detection of the traction motor electric current; Coder for detection of the traction motor rotating speed; A torque control unit is used for the weighing value that speed feedback value that computing detects by the given speed value of speed instruction device, coder and meausring apparatus detect, and then produces the torque current command value; A driver train, thus be used for according to the torque current command value of torque control unit output and current sensor detect the three phasevoltage instruction that calculates motor of torque current value of feedback come the rotation of the output control traction motor of conversion inverter.
The functional structure of above-mentioned torque control unit as shown in Figure 2.It mainly is made of speed controller and weighing value/torque converter.Wherein, speed controller obtains to obtain afterwards as calculated speed component torque TRQ and to deliver to adder unit from the speed command of apparatus for controlling elevator with from the velocity feedback of coder; Weighing value/torque converter obtains the weighing value from meausring apparatus, and WGH is to adder unit for the torque of output loads component; Adder unit obtains speed component torque TRQ and the sharing part of the load torque WGH addition torque instruction value IQS and sends driver train to.
The functional structure of above-mentioned driver train as shown in Figure 3.It mainly is made of current controller and pulse signal producer.Wherein, current controller obtains to calculate the three phasevoltage command value and to pass to pulse signal producer from the torque current instruction IQS of above-mentioned torque control unit with from the torque current value of feedback IQ of current sensor; Pulse signal producer is according to the three phasevoltage command value from current controller, and the output start pulse signal comes the break-make of high-power electronic device in the control inverter, makes inverter output three-phase alternating voltage, drives the traction motor running.
When elevator started, weighing value/torque converter need to be finished sharing part of the load torque calculation before band-type brake is opened.Elevator generally need to car load under unloaded and semi-load, corresponding weighing value stored respectively, also have elevator also to store and be fully loaded with corresponding weighing value in the Installation and Debugging stage.When the load in the car changes in unloaded and full-load range, when if the output weighing value approximately linear of meausring apparatus changes, as shown in Figure 4, just can calculate according to formula 1 the unbalance load amount UBLD of elevator, calculate sharing part of the load torque WGH according to UBLD according to formula 2 again.
Weighing value W according to the unloaded weighing value WN that writes in the elevator debugging stage, weighing semi-load value WB, elevator nominal payload CAP and the output of current meausring apparatus can calculate unbalance load amount UBLD:
UBLD=(W-WB) * CAP/ (WB-WN)/2 formula (1)
Then according to compensation rate R and the unbalance load amount UBLD of traction motor constant K, the gain of startup scale WGHG, steel rope and cable, calculate again sharing part of the load torque WGH:
WGH=UBLD * K * WGHG+R formula (2)
Wherein, in the elevator Installation and Debugging stage, start scale gain WGHG to compensate every deviation that the traction motor constant K is possible by adjusting, its value is defaulted as 1.The compensation rate R of steel rope and cable compensates sharing part of the load torque WGH according to elevator at the steel rope of the different floors of hoistway and the situation of change of cable.
After sharing part of the load torque WGH calculates and finishes, torque control unit output torque current instruction IQS, driver train calculates voltage instruction and drives traction motor by control inverter and shifts to an earlier date the torque of output loads component.When band-type brake is opened, the speed command of this moment is zero, if the sharing part of the load torque WGH of weighing value/torque converter output calculates precisely, the compensating torque that traction motor is exported in advance just in time can overcome the unbalanced moment of car and counterweight both sides, traction motor just can keep transfixion, this moment, the speed component torque TRQ of speed controller output was zero, and torque current command value IQS equals WGH; If WGH calculates inaccurate, the output torque of traction motor just can not overcome the unbalanced moment of car and counterweight both sides, and unbalanced moment can spur traction motor and rotate, and impact is arranged when causing elevator to start.Afterwards, because the rotation of traction motor, the automatic output speed component torque TRQ of speed controller meeting compensates the deviation (at this moment IQS=WGH+TRQ) between WGH and the actual unbalanced moment, make the final output torque of traction motor can overcome the unbalanced moment of car and counterweight both sides, it is motionless to make traction motor keep zero-speed.After apparatus for controlling elevator produced speed command, elevator just began Accelerating running.
For each traction motor, the actual value of said motor constant K is difference to some extent, in order to compensate this difference, generally needs to adjust gain WGHG, makes sharing part of the load torque value WGH can accurately overcome unbalanced moment.In order to access accurate sharing part of the load torque value, Chinese invention patent application Publication Specification CN1133815A (open day: on October 23rd, 1996) disclose a kind of driving compensation apparatus for elevator and method thereof, it has increased a speed command newly and has produced mechanism on the basis of torque control unit shown in Figure 2, and use following torsion compensation process: in the elevator debugging stage, produce mechanism by above-mentioned speed command and determine that a speed value gives speed controller, torque control unit drives the elevator that is in zero load or fully laden under the prerequisite of shielding weighing value/torque converter output signal, through behind the certain hour when the absolute value of the speed feedback value of elevator and the difference between the above-mentioned speed command value during less than a predetermined value, by weighing value/torque converter storage present speed component torque value as no-load torque value or full load torque value; When elevator is in when unloading phase in normal when operation, weighing value/torque converter produces a sharing part of the load torque value that calculates according to current weighing value as compensated torque with reference to no-load torque value and the full load torque value of storing during the stage at above-mentioned elevator debugging.This method just can calculate sharing part of the load torque WGH because no-load torque value and the full load torque value of having stored elevator do not needed the constant K of the traction motor in the formula 2 and started scale gain WGHG.
But in actual use, torque control unit can not guarantee that elevator has good startability all the time, one of them important reason is after elevator moves a period of time, the meausring apparatus performance can change along with the time, the zero point of meausring apparatus delivery curve and slope all might change among Fig. 4, the load condition of the weighing value of meausring apparatus output in can not the accurate response car, it is inaccurate to cause sharing part of the load torque WGH to calculate; In addition, after operation a period of time, the performance of traction motor also may variation, its constant K can change, even the weighing value of meausring apparatus is accurate so, the torque current command value IQS that finally calculates can not make traction motor produce accurately torque compensates, the car vibrations in the time of can causing equally elevator to start.In practical operation, often need the professional regularly meausring apparatus to be proofreaied and correct to guarantee the accurate of weighing value, and adjust startup scale gain WGHG and offset the variation of traction motor constant so that traction motor recovers original voltage/torque characteristics, this has increased cost of labor undoubtedly greatly.
Cause the inaccurate problem of compensated torque for the performance variation because of meausring apparatus, Chinese invention patent application Publication Specification CN1035051C (open day: February 1 nineteen ninety-five) disclose a kind of elevator control gear, torque control unit has been carried out corresponding change, is exactly to have increased a weighing value correction arithmetical device and a weighing value correcting device in weighing value/torque converter front specifically.Above-mentioned weighing value correction arithmetical device reads the weighing value Vw of meausring apparatus output when elevator starts, actual torque according to traction motor output in the car traveling process calculates the weighing value Vc that meausring apparatus should be exported, and the difference of weighing computing value Vc and weighing value Vw is designated as weighing value correction Ve; When elevator started again, above-mentioned weighing value correcting device was revised current weighing value Vw according to Vw ← Vw+Ve, and weighing value/torque converter is finished according to revised weighing value Vw assumed (specified) load component torque value and started the action of weighing.The advantage of this invention is not need additional hardware just can revise the output bias of meausring apparatus time to time change, but also there are two place's defectives in this corrected Calculation: first, weighing value Vw when the Ve that the weighing value correcting device of this invention calculates according to a upper execution cycle revises and starts next time, this correcting mode can only overcome the zero creep of weighing curve among Fig. 4 to the impact of sharing part of the load torque calculation, if variation has occured in this slope of a curve, when elevator starts again after the load condition of cab changes so, the correction Ve that is calculated by the last time can not accurately revise current weighing value Vw; The second, this invention can not overcome performance because of traction motor and change and make sharing part of the load torque WGH calculate inaccurate impact.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of elevator weighing value diagnosis modification method, it can overcome simultaneously because meausring apparatus and traction motor performance change and causes the inaccurate problem of compensated torque, reaches to need not the purpose that manual intervention can be kept the good startability of elevator.
For solving above technical matters, the invention provides a kind of elevator weighing value diagnosis modification method, wherein, described elevator comprises traction motor, rectifier, inverter, torque control unit, driver train, meausring apparatus, current sensor and coder; Above-mentioned torque control unit produces the torque current command value and gives described driver train, is driven the running of described traction motor by described inverter by described driver train; The weighing value of described meausring apparatus output and torque current value are revised the parameter that participates in sharing part of the load torque calculation when starting according to elevator.
Beneficial effect of the present invention is: farthest guaranteed the elevator startability.Weighing value diagnosis modification method upgrades zero load/semi-load/is fully loaded with the weighing value automatically, also can accurately calculate sharing part of the load torque value even weighing value and traction motor constant change, and guarantees that start-up course is steady.Farthest reduced the work capacity of elevator later stage repair and maintenance.Weighing value diagnosis modification method moves, need not artificial participation automatically by electric life controller, adopts the meausring apparatus that can save behind the said method in the elevator maintain and protection to proofread and correct and start the adjustment work of gain factor.
Above-mentioned torque current value both can refer to the torque current command value that described torque control unit produces, and also can refer to the torque current value of feedback that described current sensor detects.
When above-mentioned torque current value equals no-load torque current value that theory calculates, semi-load torque current value or during the full load torque current value, stored and be used for unloaded weighing value, weighing semi-load value or the fully loaded weighing value of assumed (specified) load component torque before the weighing value correction with the described meausring apparatus output of its correspondence.
Weighing value and described torque current value according to above-mentioned meausring apparatus output are extrapolated unloaded weighing value, weighing semi-load value and fully loaded weighing value, and have stored and be used for unloaded weighing value, weighing semi-load value and the fully loaded weighing value of the torque of assumed (specified) load component before revising.
The value of each coefficient in the function f () of extrapolating the torque of assumed (specified) load component according to weighing value and the described torque current value of the output of above-mentioned meausring apparatus.
Description of drawings
Fig. 1 is the elevator device scheme drawing;
Fig. 2 is the functional structure chart of torque control unit;
Fig. 3 is the functional structure chart of driver train;
Fig. 4 is that car load-weighing value concerns scheme drawing;
Fig. 5 is the weighing value diagnosis corrective action diagram of circuit of the embodiment of the invention 1;
Fig. 6 is the weighing value diagnosis corrective action diagram of circuit of the embodiment of the invention 2.
The specific embodiment
In order to make more easy to understand of principle of the present invention and feature thereof, below in conjunction with the specific embodiment, further set forth the present invention.
Can obtain the sharing part of the load torque IN=-CAP/2 * K during elevator no-load * WGHG+R, the sharing part of the load torque IB=0 * K during semi-load * WGHG+R=R, the sharing part of the load torque IF=CAP/2 * K of at full load * WGHG+R according to formula 2.When the elevator internal contracting brake device open and the control of traction motor at torque control unit under keep zero-speed motionless after, the controller of elevator can be judged according to the torque current command value IQS of this moment the load condition in the lift car: when torque current command value IQS equals IN, judge to be zero load in car this moment, the weighing value of this moment is designated as WN1; When torque current command value IQS equals IB, judge to be semi-load in the car that the weighing value of this moment is designated as WB1 this moment; When torque current command value IQS equals IF, judge that car is interior as fully loaded at this moment, the weighing value of this moment is designated as WF1.Torque current value of feedback IQ in the driver train, because the control of current controller, its value equals torque current command value IQS substantially, can be used for judging equally elevator lift car load.But for convenience of description, in the present invention, only remove to judge elevator lift car load with torque current command value IQS.
When the performance of meausring apparatus and traction motor any variation did not occur, above-mentioned weighing value WN1, WB1 and WF1 can be equal to unloaded weighing value WN, weighing semi-load value WB and the fully loaded weighing value WF that stores in the debug phase.
When meausring apparatus changes, meausring apparatus is understood different in the weighing value of unloaded, semi-load and at full load output with the unloaded weighing value WN, the weighing semi-load value WB that store in the debug phase and weighing semi-load value WF, if also by formula 1 remove to calculate unbalance load amount UBLD according to WN, WB and WF, the UBLD that obtains can be different with real unbalance load, and by formula 2 sharing part of the load torque WGH that calculate are just inaccurate again.But, no matter the curve of meausring apparatus output is that zero creep or slope variation occur, the electric current of the corresponding zero load of traction motor, semi-load and at full load can not change, above-mentioned weighing value WN1, the WB1 that writes down and WF1 more can truly reflect the load condition of car, after the value that refreshes respectively the WN, the WB that store in the debug phase and WF with weighing value WN1, WB1 and WF1, the unbalance load amount UBLD that formula 1 and formula 2 calculate and sharing part of the load torque WGH can truly reflect actual value.
When the performance of traction motor changes, constant of the machine K can change, even load condition in the output valve of the meausring apparatus of this moment energy actual response car, be that the unbalance load amount UBLD that calculates of formula 1 is identical with actual value, but the sharing part of the load torque WGH that formula 2 calculates is just unequal with real unbalanced moment.But the controller of elevator still can be by above-mentioned identical mode, no matter the performance of traction motor has unchanged, think that still the electric current of the corresponding zero load of traction motor, semi-load and at full load can not change: when torque current command value IQS equals IN, judge to be zero load in car this moment, the weighing value of this moment is designated as WN1; When torque current command value IQS equals IB, judge to be semi-load in the car that the weighing value of this moment is designated as WB1 this moment; When torque current command value IQS equals IF, judge that car is interior as fully loaded at this moment, the weighing value of this moment is designated as WF1.After the value that refreshes respectively the WN, the WB that store in the debug phase and WF with weighing value WN1, WB1 and WF1, although weighing value WN1, WB1 are not identical with the weighing value of real zero load, semi-load and at full load with WF1, and by formula the 1 unbalance load amount UBLD that calculates and real load situation misfit, but by formula 2 sharing part of the load torque WGH that calculate can accurately equal the unbalance load moment of elevator.Accordingly, the method also can compensate the impact that the traction motor performance changes, and improves the startability of elevator.
When the performance of meausring apparatus and traction motor changes simultaneously, can use aforesaid way equally, by refreshing WN, WB and the WF that stores in the debug phase, the impact that compensation brings because both change, the sharing part of the load torque WGH that calculates can accurately overcome the unbalance load moment of elevator, improves the startability of elevator.
Because the present invention extrapolates load condition in the car according to torque current command value IQS, and be updated in WN, WB that the debug phase stores and the value of WF.When elevator adopts other load weighing value of storage to go to calculate unbalance load amount and sharing part of the load torque, for example store 25% load weighing value and 75% load weighing value, so long as calculate the elevator mode of unbalance load amount and sharing part of the load torque by the weighing value of storing the different loads situation, when the performance of meausring apparatus or traction motor changes, can upgrade by the way the startability that the weighing value of having stored is improved elevator.
The inner link of car actual load and torque current command value was upgraded the load weighing value of having stored in the debug phase when weighing value diagnosis modification method of the present invention had utilized the elevator zero-speed, offset the variation of weighing value and traction motor constant with this.After upgrading the load weighing value of storing, still can accurately be calculated by the weighing value of meausring apparatus output and to keep the required sharing part of the load torque of traction motor both sides moment balance, even the delivery curve generation zero creep of meausring apparatus or slope variation or traction motor performance change, also can guarantee the startability that elevator is good.
Embodiment one
For the elevator that only writes unloaded weighing value WN and weighing semi-load value WB in the debug phase, the by formula 1 assumed (specified) load component load of its torque control unit.For the elevator that writes unloaded weighing value WN, weighing semi-load value WB and fully loaded weighing value WF in the debug phase, the sharing part of the load load calculation in its torque control unit is as follows:
UBLD=(W-WB) * CAP/ (WB-WN)/2, W＜WB formula (3)
Or UBLD=(W-WB) * CAP/ (WF-WB)/2, W 〉=WB formula (4)
After calculating sharing part of the load load UBLD, 2 assumed (specified) load component torque WGH by formula again.
According to formula 2, can calculate the theory load component torque value of zero load, semi-load and at full load:
When IN=-CAP/2 * K+R is unloaded;
IB=R is during semi-load;
IF=CAP/2 * K+R at full load.
When elevator normally moved, apparatus for controlling elevator computation period was according to the rules carried out weighing value diagnosis corrective action flow process shown in Figure 5 repeatedly:
Judge which kind of running state elevator is in, and then enters corresponding branch flow process:
(1) elevator be in starting state (this moment elevator static, start the action of weighing.Elevator began Accelerating running after starting state finished)
After band-type brake is opened, in specific time T1, judge whether traction motor is in zero-speed and keeps.When traction motor was in zero-speed and keeps, the moment of traction motor output this moment just in time equaled the unbalanced moment of elevator.Traction motor may be because sharing part of the load torque WGH calculates inaccurate and rotate when the band-type brake device has just been opened, and this needs latency speed controller compensation torque deviation to make traction motor finally be in zero-speed to keep.
Current electric torque flow command value IQS is judged: if IQS equals unloaded sharing part of the load torque IN, judge that then elevator is in light condition, and current weighing value is saved as unloaded weighing value WN1; If IQS equals sharing part of the load torque semi-load IB, judge that then elevator is in half cargo condition, and current weighing value is saved as weighing semi-load value WB1; If IQS equals fully loaded sharing part of the load torque IF, judge that then elevator is in fully laden, and current weighing value is saved as fully loaded weighing value WF1; Otherwise, directly finish.
(2) elevator be in travel condition (this moment elevator move to destination from initial floor.Elevator speed was zero after travel condition finished, and band-type brake is embraced traction motor, and elevator enters halted state)
Directly finish.
(3) elevator is in halted state
Whether all assignment is complete to judge new unloaded weighing value WN1, the weighing semi-load value WB1 that preserves and fully loaded weighing value WF1: if, then use WN1, WB1 and WF1 difference assignment to WN, WB and WF, and the internal memory that will preserve WN1, WB1 and WF1 empties end; If not, then directly finish.
After upgrading WN, WB and WF value, when next elevator started, the sharing part of the load load UBLD that calculates and sharing part of the load torque WGH will be more near actual values, and the startability of elevator will improve.
Embodiment two
In the weighing value diagnosis corrective action flow process of embodiment 1, the torque current command value IQS when the traction motor zero-speed is kept the unloading phase of according to elevator judges the condition of loading of elevator, and then revises zero load, semi-load and the fully loaded weighing value of having stored.In fact, the load in the cab is just in time for semi-load or fully loaded situation seldom occur, and this cycle that just means the correction of weighing value is longer, and elevator probably is in the not good state of startability for a long time.
For fear of the generation of above-mentioned situation, embodiment 2 symmetrical value diagnosis corrective action flow processs have been carried out suitable modification.When elevator normally moved, apparatus for controlling elevator computation period was according to the rules carried out weighing value diagnosis corrective action flow process shown in Figure 6 repeatedly:
Judge which kind of running state elevator is in, and then enters corresponding branch flow process:
(1) elevator is in starting state
After band-type brake is opened, in specific time T1, judge whether traction motor is in zero-speed and keeps.When traction motor was in zero-speed and keeps, the moment of traction motor output this moment just in time equaled the unbalanced moment of elevator, and front torque current instruction value IQS and current weighing value W are saved in [current value-weighing value] form together.
(2) elevator is in travel condition
Directly finish.
(3) elevator is in halted state
Judge that the quantity that records in [current value-weighing value] form is whether greater than predetermined value N: if Rule of judgment is set up, then cross the mathematical methods such as linear interpolation according to the data communication device that records in the above table and obtain corresponding unloaded weighing value WN1, weighing semi-load value WB1 and the fully loaded weighing value WF1 with unloaded sharing part of the load torque IN, semi-load sharing part of the load torque IB and fully loaded sharing part of the load torque IF, replace respectively WN, WB and the WF that writes before with WN1, WB1 and WF1, above table is emptied, finish; If Rule of judgment is false, then directly finish.
Embodiment three
In embodiment 1 and embodiment 2, all need to manually write unloaded weighing value WN, weighing semi-load value WB and fully loaded weighing value WF by the professional in the elevator debugging stage, after this, apparatus for controlling elevator is according to formula 1,2,3 and 4 assumed (specified) load component load UBLD and sharing part of the load torque WGH.
In order further to reduce the work capacity in the elevator debugging stage, embodiment 3 has cancelled the weighing value write step in elevator debugging stage, zero load, semi-load and fully loaded weighing value that the zero load of giving tacit consent to dispatching from the factory, semi-load and the replacement of fully loaded weighing value write in the elevator debugging stage.When elevator begins normally to move, start unbalance load calculating and the sharing part of the load torque calculation of the action of weighing with zero load, semi-load and the fully loaded weighing value of acquiescence.Meanwhile, adopt embodiment 1 or embodiment 2 described weighing value diagnosis corrective action flow processs, after elevator uses a period of time, in case zero load, semi-load and the correction of fully loaded weighing value are complete, elevator will begin to obtain good startability.Weighing value diagnosis modification method afterwards is with identical at embodiment 1 or embodiment 2.
Embodiment four
In the above among several embodiment, when elevator starts when weighing action, torque control unit need to according to current weighing value W, by formula 1,2,3 and 4 calculate unbalance load UBLD and sharing part of the load torque WGH successively.Also there is elevator to describe relation between sharing part of the load torque WGH and the weighing value W in the mode of function, that is:
WGH＝f(a1，...，an，W)
Wherein, a1 ..., an is n coefficient of function f ().
Like this, each elevator starts when weighing action, and torque control unit can be calculated sharing part of the load torque value WGH with in the current weighing value W above-mentioned function f of substitution ().
The emphasis of present embodiment is to obtain each coefficient a1 in the function f () according to weighing value and torque current command value by the mode of curve ..., an.
(1) elevator is in starting state
After band-type brake is opened, in specific time T1, judge whether traction motor is in zero-speed and keeps.When traction motor was in zero-speed and keeps, the moment of traction motor output this moment just in time equaled the unbalanced moment of elevator, and current torque current command value IQS and current weighing value W are saved in [current value-weighing value] form together.
(2) elevator is in travel condition
Directly finish.
(3) elevator is in halted state
Judge that the quantity that records in [current value-weighing value] form is whether greater than predetermined value N: if Rule of judgment is set up, then cross curve according to the data communication device in the above table and recalculate n coefficient: a1 ' in the function f (), ..., an ' uses a1 ', ..., the a1 that stores before an ' replaces respectively ..., an, then above table is emptied, finish; If Rule of judgment is false, then directly finish.
In sum, the present invention can solve that weighing value and traction motor constant change the not good problem of startability that causes after elevator operation a period of time.And can see that in the control step of the specific embodiment the present invention has maximally utilised the original control system of elevator and checking system, farthest reduced the cost that system realizes.
More than by specific embodiment content of the present invention is had been described in detail, but these are not to be construed as limiting the invention.To one skilled in the art, protection scope of the present invention also comprises various distortion and the improvement that those have been done in the situation that does not break away from the principle of the invention.
Claims (5)
1. an elevator weighing value is diagnosed modification method, and wherein, described elevator comprises traction motor, rectifier, inverter, torque control unit, driver train, meausring apparatus, current sensor and coder;
Above-mentioned torque control unit produces the torque current command value and gives described driver train, is driven the running of described traction motor by described inverter by described driver train;
It is characterized in that the weighing value of described meausring apparatus output and torque current value are revised the parameter that participates in sharing part of the load torque calculation when starting according to elevator.
2. elevator weighing value diagnosis modification method according to claim 1 is characterized in that the torque current value both can refer to the torque current command value that described torque control unit produces, and also can refer to the torque current value of feedback that described current sensor detects.
3. elevator weighing value according to claim 1 is diagnosed modification method, it is characterized in that, when described torque current value equals no-load torque current value that theory calculates, semi-load torque current value or during the full load torque current value, stored and be used for unloaded weighing value, weighing semi-load value or the fully loaded weighing value of assumed (specified) load component torque before the weighing value correction with the described meausring apparatus output of its correspondence.
4. elevator weighing value according to claim 1 is diagnosed modification method, it is characterized in that, weighing value and described torque current value according to described meausring apparatus output are extrapolated unloaded weighing value, weighing semi-load value and fully loaded weighing value, and have stored and be used for unloaded weighing value, weighing semi-load value and the fully loaded weighing value of the torque of assumed (specified) load component before revising.
5. elevator weighing value according to claim 1 diagnosis modification method is characterized in that, the value of each coefficient in the function f () of extrapolating the torque of assumed (specified) load component according to weighing value and the described torque current value of described meausring apparatus output.
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| CN105523455A (en) * | 2015-11-02 | 2016-04-27 | 康力电梯股份有限公司 | Elevator weighing device |
| CN106672717A (en) * | 2015-11-11 | 2017-05-17 | 上海三菱电梯有限公司 | Elevator load torque current correction method and device and elevator control method |
| WO2018083739A1 (en) * | 2016-11-01 | 2018-05-11 | 三菱電機株式会社 | Elevator device and calibration method for weighing device |
| CN108675070A (en) * | 2018-05-07 | 2018-10-19 | 永大电梯设备（中国）有限公司 | A kind of elevator starts the implementation method of compensation |
| CN109850712A (en) * | 2019-04-02 | 2019-06-07 | 上海三菱电梯有限公司 | A kind of auto-correction method of elevator meausring apparatus |
| CN110316629A (en) * | 2018-03-30 | 2019-10-11 | 上海三菱电梯有限公司 | Elevator meausring apparatus auto-correction method |
| CN111731957A (en) * | 2020-08-10 | 2020-10-02 | 苏州汇川技术有限公司 | Method and device for compensating starting force of elevator and elevator |
| CN113044693A (en) * | 2019-12-26 | 2021-06-29 | 株式会社日立制作所 | Elevator control device and elevator control method |
| CN114261860A (en) * | 2021-12-30 | 2022-04-01 | 日立电梯（中国）有限公司 | Active inhibition method for elevator car vibration |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0455273A (en) * | 1990-06-22 | 1992-02-21 | Mitsubishi Electric Corp | Control device of elevator |
| CN1133815A (en) * | 1995-02-10 | 1996-10-23 | Lg电子株式会社 | Driving compensation apparatus for elevator and method thereof |
| JPH10509682A (en) * | 1994-11-29 | 1998-09-22 | コネ オサケ ユキチュア | Elevator control method |
| US6286628B1 (en) * | 1999-01-28 | 2001-09-11 | Lg Otis Elevator Company | Non-linear load detection and compensation for elevators |
-
2012
- 2012-04-27 CN CN201210128982.3A patent/CN103373649B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0455273A (en) * | 1990-06-22 | 1992-02-21 | Mitsubishi Electric Corp | Control device of elevator |
| JPH10509682A (en) * | 1994-11-29 | 1998-09-22 | コネ オサケ ユキチュア | Elevator control method |
| CN1133815A (en) * | 1995-02-10 | 1996-10-23 | Lg电子株式会社 | Driving compensation apparatus for elevator and method thereof |
| US6286628B1 (en) * | 1999-01-28 | 2001-09-11 | Lg Otis Elevator Company | Non-linear load detection and compensation for elevators |
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| CN105314486B (en) * | 2014-08-04 | 2017-11-24 | 上海三菱电梯有限公司 | The assay method of elevator brake brake force |
| CN105314486A (en) * | 2014-08-04 | 2016-02-10 | 上海三菱电梯有限公司 | Measurement method for braking force of elevator brake |
| CN105523455A (en) * | 2015-11-02 | 2016-04-27 | 康力电梯股份有限公司 | Elevator weighing device |
| CN106672717B (en) * | 2015-11-11 | 2019-04-02 | 上海三菱电梯有限公司 | The bearing calibration of elevator load torque current and device and elevator control method |
| CN106672717A (en) * | 2015-11-11 | 2017-05-17 | 上海三菱电梯有限公司 | Elevator load torque current correction method and device and elevator control method |
| CN109890740B (en) * | 2016-11-01 | 2020-11-06 | 三菱电机株式会社 | Elevator device and method for correcting scale device |
| JPWO2018083739A1 (en) * | 2016-11-01 | 2019-03-22 | 三菱電機株式会社 | Elevator apparatus and calibration method of balance apparatus |
| CN109890740A (en) * | 2016-11-01 | 2019-06-14 | 三菱电机株式会社 | The bearing calibration of lift appliance and scale device |
| WO2018083739A1 (en) * | 2016-11-01 | 2018-05-11 | 三菱電機株式会社 | Elevator device and calibration method for weighing device |
| CN110316629A (en) * | 2018-03-30 | 2019-10-11 | 上海三菱电梯有限公司 | Elevator meausring apparatus auto-correction method |
| CN110316629B (en) * | 2018-03-30 | 2021-10-08 | 上海三菱电梯有限公司 | Automatic correction method for elevator weighing device |
| CN108675070A (en) * | 2018-05-07 | 2018-10-19 | 永大电梯设备（中国）有限公司 | A kind of elevator starts the implementation method of compensation |
| 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 |
| CN109850712A (en) * | 2019-04-02 | 2019-06-07 | 上海三菱电梯有限公司 | A kind of auto-correction method of elevator meausring apparatus |
| CN109850712B (en) * | 2019-04-02 | 2022-04-12 | 上海三菱电梯有限公司 | Automatic correction method for elevator weighing device |
| CN113044693A (en) * | 2019-12-26 | 2021-06-29 | 株式会社日立制作所 | Elevator control device and elevator control method |
| CN111731957A (en) * | 2020-08-10 | 2020-10-02 | 苏州汇川技术有限公司 | Method and device for compensating starting force of elevator and elevator |
| CN114261860A (en) * | 2021-12-30 | 2022-04-01 | 日立电梯（中国）有限公司 | Active inhibition method for elevator car vibration |
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