CN103373649B - Elevator weighing value diagnosing and revising method - Google Patents
Elevator weighing value diagnosing and revising method Download PDFInfo
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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 field of elevator control, particularly relate to a kind of weighing value for the elevator with meausring apparatus diagnosis modification method.
Background technology
Elevator now generally has a load weighing device to detect the load of lift car, adds to traction motor Driving Torque when elevator starts corresponding to the torque of weighing value, compensates the weight difference because of car and counterweight and the unbalanced moment that produces.When band-type brake is opened, above-mentioned unbalanced moment will be offset by the torque that traction motor produces, and is unlikely to the moment after band-type brake is opened car is impacted.This action is generally referred to as startup and weighs, generally by the torque control unit in elevator device complete above-mentioned startup weigh action thus suppress elevator startup impact.
Fig. 1 illustrates 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 driven on rope sheave; Rectifier three-phase alternating current being become DC current; The DC current that rectifier exports is become the inverter of alternating current by one; A basis produces one from the three plase alternating current that inverter exports and drives driving rope sheave to rotate the traction motor that car and counterweight are moved up and down together; One is placed in car desired location and meausring apparatus for detecting car load; One for detecting the current sensor of traction motor electric current; One for detecting the coder of traction motor rotating speed; A torque control unit, the weighing value that the speed feedback value detected by the given speed value of speed instruction device, coder for computing and meausring apparatus detect, then produces torque current command value; A driver train, for the torque current command value that exports according to torque control unit and current sensor detect the three phasevoltage instruction that calculates motor of torque current feedback value convert the output of inverter thus control the rotation of traction motor.
The functional structure of above-mentioned torque control unit as shown in Figure 2.It is formed primarily of speed controller and weighing value/torque converter.Wherein, speed controller obtains the speed command from apparatus for controlling elevator and the velocity feedback from coder, obtains speed component torque TRQ afterwards as calculated and delivers to adder unit; Weighing value/torque converter obtains the weighing value from meausring apparatus, and WGH is to adder unit for the torque of output loads component; Speed component torque TRQ and sharing part of the load torque WGH is added by adder unit, obtains torque instruction value IQS and sends driver train to.
The functional structure of above-mentioned driver train as shown in Figure 3.It is formed primarily of current controller and pulse signal producer.Wherein, current controller obtains the torque current instruction IQS from above-mentioned torque control unit and the torque current feedback value IQ from current sensor, calculates three phasevoltage command value and passes to pulse signal producer; Pulse signal producer, according to the three phasevoltage command value from current controller, exports the break-make that start pulse signal carrys out high-power electronic device in control inverter, makes inverter export three-phase alternating voltage, drives traction motor running.
When elevator starts, weighing value/torque converter needs before band-type brake is opened, complete sharing part of the load torque calculation.Elevator generally needs the weighing value of car load corresponding to unloaded and semi-load to store respectively in the Installation and Debugging stage, also has elevator also to store fully loaded corresponding weighing value.When the load in car changes in zero load and full-load range, if when the output weighing value approximately linear of meausring apparatus changes, as shown in Figure 4, just can calculate the unbalance load amount UBLD of elevator according to formula 1, then calculate sharing part of the load torque WGH according to UBLD according to formula 2.
According to the weighing value W that the zero load weighing value WN write in the elevator debugging stage, weighing semi-load value WB, elevator nominal payload CAP and current meausring apparatus export, unbalance load amount UBLD can be calculated:
UBLD=(W-WB) × CAP/ (WB-WN)/2 formula (1)
Then according to traction motor constant K, the compensation rate R starting scale gain WGHG, steel rope and cable and unbalance load amount UBLD, then sharing part of the load torque WGH is calculated:
WGH=UBLD × K × WGHG+R formula (2)
Wherein, in the elevator Installation and Debugging stage, start scale gain WGHG to compensate the possible deviation of every platform traction motor constant K by adjustment, its value is defaulted as 1.Steel rope and the compensation rate R of cable compensate sharing part of the load torque WGH according to elevator at the steel rope of the different floor of hoistway and the situation of change of cable.
After sharing part of the load torque WGH has calculated, torque control unit Driving Torque current-order IQS, driver train calculates voltage instruction and drives traction motor to shift to an earlier date the torque of output loads component by control inverter.When band-type brake is opened, speed command is now zero, if the sharing part of the load torque WGH that weighing value/torque converter exports calculates precisely, the compensating torque that traction motor exports in advance just in time can overcome the unbalanced moment of car and counterweight both sides, traction motor just can keep transfixion, the speed component torque TRQ that now speed controller exports is 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 pull traction motor to rotate, and has impact when causing elevator to start.Afterwards, due to the rotation of traction motor, speed controller can compensate deviation (at this moment IQS=WGH+TRQ) between WGH and actual unbalanced moment by automatic output speed component torque TRQ, the Driving Torque enabling traction motor final overcomes the unbalanced moment of car and counterweight both sides, makes traction motor maintain zero-speed motionless.After apparatus for controlling elevator produces speed command, elevator just starts Accelerating running.
For each traction motor, the actual value of above-mentioned constant of the machine K can difference to some extent, in order to compensate this difference, generally needing adjustment gain WGHG, making sharing part of the load torque value WGH accurately can overcome unbalanced moment.In order to accurate sharing part of the load torque value can be obtained, Chinese invention patent application Publication Specification CN1133815A (publication date: on October 23rd, 1996) discloses 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 the torque control unit shown in Fig. 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 being in zero load or fully laden under the prerequisite of shielding weighing value/torque converter output signal, the absolute value of the difference after certain hour between the speed feedback value of elevator and above-mentioned speed command value is less than a predetermined value, present speed component torque value is stored as no-load torque value or full load torque value by weighing value/torque converter, when elevator is in normal operation unloading phase time, weighing value/torque converter, with reference to the no-load torque value of storing when the above-mentioned elevator debugging stage and full load torque value, produces a sharing part of the load torque value calculated according to current weighing value as compensated torque.This method, owing to having stored no-load torque value and the full load torque value of elevator, has not needed the constant K of the traction motor in formula 2 and has started scale gain WGHG, just can calculate sharing part of the load torque WGH.
But in actual use, torque control unit can not ensure that elevator has good startability all the time, one of them important reason is after elevator runs a period of time, meausring apparatus performance can change along with the time, in Fig. 4, zero point of meausring apparatus delivery curve and slope all likely change, the weighing value that meausring apparatus exports can not load condition in accurate response car, causes sharing part of the load torque WGH to calculate inaccurate; In addition, after operation a period of time, the performance of traction motor also may be deteriorated, its constant K can change, even if so the weighing value of meausring apparatus is accurate, the torque current command value IQS finally calculated can not make traction motor produce torque accurately to compensate, car vibrations when elevator can be caused equally to start.In practical operation, professional's regular weighing device is often needed to carry out correcting to ensure the accurate of weighing value, and voltage/torque characteristics that the change that adjustment startup scale gain WGHG offsets traction motor constant recovers original to make traction motor, this considerably increases cost of labor undoubtedly.
For the problem that the performance change because of meausring apparatus causes compensated torque inaccurate, Chinese invention patent application Publication Specification CN1035051C (publication date: February 1 nineteen ninety-five) discloses a kind of elevator control gear, corresponding change is carried out to torque control unit, before weighing value/torque converter, has added a weighing value correction arithmetical device and a weighing value correcting device exactly specifically.Above-mentioned weighing value correction arithmetical device reads the weighing value Vw that meausring apparatus exports when elevator starts, the actual torque exported according to traction motor in car traveling process calculates the weighing value Vc that meausring apparatus should export, and the difference weighing computing value Vc and weighing value Vw is designated as weighing value correction Ve; When elevator starts again, above-mentioned weighing value correcting device is revised current weighing value Vw according to Vw ← Vw+Ve, and weighing value/torque converter completes startup according to revised weighing value Vw assumed (specified) load component torque value and to weigh action.The advantage of this invention does not need additional hardware to revise with regard to the output bias of energy weighing device time to time change, but also there are two place's defects in this corrected Calculation: first, the weighing value correcting device of this invention revises weighing value Vw when next time starting according to the Ve that a upper execution cycle calculates, this correcting mode can only overcome in Fig. 4 weigh curve zero creep on the impact of sharing part of the load torque calculation, if this slope of a curve there occurs change, so when after the load condition of cab changes, elevator starts again, the correction Ve calculated by the last time accurately can not revise current weighing value Vw, the second, this invention performance that can not overcome because of traction motor changes and makes sharing part of the load torque WGH calculate inaccurate impact.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of elevator weighing value diagnosis modification method, it can overcome the problem causing compensated torque inaccurate because meausring apparatus and traction motor performance change simultaneously, reaches the object that can maintain the good startability of elevator without the need to manual intervention.
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 torque current command value and gives described driver train, is driven the running of described traction motor by described driver train by described inverter; The weighing value that when starting according to elevator, described meausring apparatus exports and torque current value have been stored before revising and for the various load state weighing values of assumed (specified) load component torque.
Beneficial effect of the present invention is: farthest ensure that elevator startability.Weighing value diagnosis modification method automatically upgrade zero load/semi-load/fully loaded weighing value, even if weighing value and the change of traction motor constant also can accurately calculate sharing part of the load torque value, ensure that start-up course is steady.Farthest decrease the work capacity of elevator later stage repair and maintenance.Weighing value diagnosis modification method is run automatically by electric life controller, without the need to artificial participation, the meausring apparatus that can save after adopting said method in elevator maintain and protection corrects and starts 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 also can refer to the torque current feedback value that described current sensor detects.
When above-mentioned torque current value equal no-load torque current value that theory calculate goes out, semi-load torque current value or full load torque current value time, stored before the weighing value correction exported with the described meausring apparatus of its correspondence and for the torque of assumed (specified) load component zero load weighing value, weighing semi-load value or be fully loaded with weighing value.
The weighing value exported according to above-mentioned meausring apparatus and described torque current value are extrapolated unloaded weighing value, weighing semi-load value and are fully loaded with weighing value, and revise before stored and for the torque of assumed (specified) load component zero load weighing value, weighing semi-load value and be fully loaded with weighing value.
The weighing value exported according to above-mentioned meausring apparatus and described torque current value extrapolate the value of each coefficient in the function f () of assumed (specified) load component torque.
Accompanying drawing explanation
Fig. 1 is elevator device schematic diagram;
Fig. 2 is the functional structure chart of torque control unit;
Fig. 3 is the functional structure chart of driver train;
Fig. 4 is car load-title magnitude relationship schematic diagram;
Fig. 5 is the weighing value diagnosis corrective action diagram of circuit of the embodiment of the present invention 1;
Fig. 6 is the weighing value diagnosis corrective action diagram of circuit of the embodiment of the present invention 2.
Detailed description of the invention
In order to make principle of the present invention and feature thereof easy to understand more, below in conjunction with detailed description of the invention, set forth the present invention further.
Can obtain according to formula 2, sharing part of the load torque IN=-CAP/2 × K × WGHG+R during elevator no-load, sharing part of the load torque IB=0 × K × WGHG+R=R during semi-load, the sharing part of the load torque IF=CAP/2 × K × WGHG+R of at full load.When elevator internal contracting brake device open and maintain under the control of traction motor at torque control unit zero-speed motionless after, the controller of elevator can judge the load condition in lift car according to torque current command value IQS now: when torque current command value IQS equals IN, judge that now car is interior as unloaded, weighing value is now designated as WN1; When torque current command value IQS equals IB, judge that now car is interior as semi-load, weighing value is now designated as WB1; When torque current command value IQS equals IF, judge that now car is interior as fully loaded, weighing value is now designated as WF1.Torque current feedback value IQ in driver train, due to the control of current controller, its value equals torque current command value IQS substantially, may be used for equally judging elevator lift car load.But for convenience of description, in the present invention, only go to judge elevator lift car load with torque current command value IQS.
When any change does not occur the performance of meausring apparatus and traction motor, above-mentioned weighing value WN1, WB1 and WF1 can be equal at zero load weighing value WN, the weighing semi-load value WB of debug phase storage and fully loaded weighing value WF.
When meausring apparatus changes, meausring apparatus unloaded, semi-load can be different from the zero load weighing value WN, the weighing semi-load value WB that store in the debug phase and weighing semi-load value WF with the weighing value that at full load exports, if also go to calculate unbalance load amount UBLD by formula 1 according to WN, WB and WF, the UBLD obtained can be different with real unbalance load, then the sharing part of the load torque WGH calculated by formula 2 is just inaccurate.But, the curve no matter meausring apparatus exports is that zero creep or slope variation occur, traction motor is corresponding unloaded, the electric current of semi-load and at full load can not change, above-mentioned weighing value WN1, WB1 and WF1 write down more truly can reflect the load condition of car, refresh respectively after the value of WN, WB and WF of debug phase storage when being worth WN1, WB1 and WF1 with weighing, the unbalance load amount UBLD that formula 1 and formula 2 calculate and sharing part of the load torque WGH truly can reflect actual value.
When the performance of traction motor changes, constant of the machine K can change, even if the output valve energy actual response car internal load situation of meausring apparatus now, namely 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 calculates of formula 2 and real unbalanced moment just unequal.But the controller of elevator still can by above-mentioned identical mode, performance regardless of traction motor has unchanged, still think that traction motor is corresponding unloaded, the electric current of semi-load and at full load can not change: when torque current command value IQS equals IN, judge that now car is interior as unloaded, weighing value is now designated as WN1; When torque current command value IQS equals IB, judge that now car is interior as semi-load, weighing value is now designated as WB1; When torque current command value IQS equals IF, judge that now car is interior as fully loaded, weighing value is now designated as WF1.Refresh respectively after the value of WN, WB and WF of debug phase storage when being worth WN1, WB1 and WF1 with weighing, although weighing value WN1, WB1 with WF1 are unloaded with real, semi-load are not identical with the weighing value of at full load, and the unbalance load amount UBLD calculated by formula 1 and real load situation misfit, but accurately can equal the unbalance load moment of elevator by the sharing part of the load torque WGH that formula 2 calculates.Accordingly, the method also can compensate the impact that traction motor performance changes, and improves the startability of elevator.
When the performance of meausring apparatus and traction motor changes simultaneously, aforesaid way can be used equally, by refreshing WN, WB and the WF in debug phase storage, compensate because of both to change the impact brought, the sharing part of the load torque WGH calculated accurately can overcome the unbalance load moment of elevator, improves the startability of elevator.
Because the present invention is the load condition extrapolated according to torque current command value IQS in car, and upgrade the value of WN, WB and the WF in debug phase storage.When elevator adopts other load weigh value of storage to go to calculate unbalance load amount and sharing part of the load torque, such as store 25% load weighing value and 75% load weighing value, as long as calculated the elevator controlling mode of unbalance load amount and sharing part of the load torque by the weighing value of storage different loads situation, when the performance of meausring apparatus or traction motor changes, the weighing value of having stored can be upgraded by the way to improve the startability of elevator.
When weighing value of the present invention diagnosis modification method make use of elevator zero-speed, the inner link of car actual load and torque current command value, upgrades the load weigh value of having stored in the debug phase, offsets the change of weighing value and traction motor constant with this.After the load weigh value upgrading storage, the weighing value exported by meausring apparatus still accurately can calculate the sharing part of the load torque maintained needed for the moment balance of traction motor both sides, even if the delivery curve generation zero creep of meausring apparatus or slope variation or traction motor performance change, the startability that elevator is good also can be ensured.
Embodiment one
For the elevator only writing unloaded weighing value WN and weighing semi-load value WB in the debug phase, its torque control unit can by the load of formula 1 assumed (specified) load component.For the elevator writing 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 in its torque control unit is calculated 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, then press formula 2 assumed (specified) load component torque WGH.
According to formula 2, the theory load component torque value of zero load, semi-load and at full load can be calculated:
When IN=-CAP/2 × K+R is unloaded;
During IB=R semi-load;
IF=CAP/2 × K+R at full load.
When elevator normally runs, apparatus for controlling elevator performs the weighing value diagnosis corrective action flow process shown in Fig. 5 repeatedly according to the computation period of regulation:
Judge which kind of running state elevator is in, then enter corresponding branch flow process:
(1) elevator is in starting state (now elevator is static, carries out startup and to weigh action.Starting state terminates rear elevator and starts Accelerating running)
After band-type brake is opened, in specific time T1, judge whether traction motor is in zero-speed and maintains.When traction motor is in zero-speed maintenance, the moment that now traction motor exports just in time equals the unbalanced moment of elevator.When band-type brake device is just opened, traction motor may rotate because sharing part of the load torque WGH calculates inaccurate, and this needs latency speed controller compensation torque deviation to make traction motor finally be in zero-speed maintenance.
Current electric torque flow command value IQS is judged: if IQS equals unloaded sharing part of the load torque IN, then judge that 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, then judge that 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, then judge that elevator is in fully laden, and current weighing value is saved as fully loaded weighing value WF1; Otherwise, directly terminate.
(2) elevator is in travel condition (now elevator moves to destination from beginning floor.It is zero that travel condition terminates rear elevator speed, and traction motor embraced by band-type brake, and elevator enters halted state)
Directly terminate.
(3) elevator is in halted state
Whether all assignment is complete for zero load weighing value WN1, the weighing semi-load value WB1 of the new preservation of judgement and fully loaded weighing value WF1: if, then use WN1, WB1 and WF1 difference assignment to WN, WB and WF, and the internal memory preserving WN1, WB1 and WF1 is emptied, terminate; If not, then directly terminate.
After renewal WN, WB and WF value, when next elevator starts, the sharing part of the load load UBLD calculated and sharing part of the load torque WGH will closer to actual value, and the startability of elevator will improve.
Embodiment two
In the weighing value diagnosis corrective action flow process of embodiment 1, torque current command value IQS when maintaining according to traction motor zero-speed unloading phase of elevator judges the condition of loading of elevator, so correction stored zero load, semi-load and fully loaded weighing value.In fact, the load in cab just in time seldom occurs for semi-load or fully loaded situation, and this just means that the cycle of weighing value correction is longer, and elevator is probably in the not good state of startability for a long time.
In order to avoid the generation of above-mentioned situation, embodiment 2 symmetrical value diagnosis corrective action flow process has carried out suitable amendment.When elevator normally runs, apparatus for controlling elevator performs the weighing value diagnosis corrective action flow process shown in Fig. 6 repeatedly according to the computation period of regulation:
Judge which kind of running state elevator is in, then enter 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 maintains.When traction motor is in zero-speed maintenance, the moment that now traction motor exports just in time equals the unbalanced moment of elevator, and front torque current instruction value IQS is saved in [current value-weighing value] form together with current weighing value W.
(2) elevator is in travel condition
Directly terminate.
(3) elevator is in halted state
Judge whether the quantity recorded in [current value-weighing value] form is greater than predetermined value N: if Rule of judgment is set up, then obtained and unloaded sharing part of the load torque IN, corresponding zero load weighing value WN1, the weighing semi-load value WB1 of sharing part of the load torque IB and fully loaded sharing part of the load torque IF semi-load and fully loaded weighing value WF1 by mathematical methods such as linear interpolations according to the data recorded in above table, WN, WB and the WF of write before replacing respectively with WN1, WB1 and WF1, above table is emptied, terminates; If Rule of judgment is false, then directly terminate.
Embodiment three
In embodiment 1 and embodiment 2, all need manually to write unloaded weighing value WN, weighing semi-load value WB and fully loaded weighing value WF in the elevator debugging stage by professional, 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 to reduce the work capacity in the elevator debugging stage further, embodiment 3 eliminates the weighing value write step in elevator debugging stage, replaces in the zero load of elevator debugging stage write, semi-load and fully loaded weighing value by the zero load of factory default, semi-load and fully loaded weighing value.When elevator starts normally to run, carry out by the zero load given tacit consent to, semi-load and fully loaded weighing value the unbalance load calculating and the sharing part of the load torque calculation that start action of weighing.Meanwhile, adopt embodiment 1 or the diagnosis of the weighing value described in embodiment 2 corrective action flow process, after elevator uses a period of time, once zero load, semi-load and the correction of fully loaded weighing value are complete, elevator obtains good startability by starting.Afterwards weighing value diagnosis modification method with embodiment 1 or embodiment 2 identical.
Embodiment four
In several embodiment above, when elevator carry out startup weigh action time, torque control unit needs according to current weighing value W, calculates unbalance load UBLD and sharing part of the load torque WGH successively by formula 1,2,3 and 4.Also elevator is had in the mode of function to describe the relation between sharing part of the load torque WGH and weighing value W, that is:
WGH＝f(a1,...,an,W)
Wherein, a1 ..., an is n coefficient of function f ().
Like this, each elevator carry out startup weigh action time, current weighing value W substitutes in above-mentioned function f () by torque control unit, can calculate sharing part of the load torque value WGH.
The emphasis of the present embodiment is each coefficient a1 obtained by the mode of curve according to weighing value and torque current command value in function f () ..., 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 maintains.When traction motor be in zero-speed maintain time, the moment that now traction motor exports just in time equals the unbalanced moment of elevator, in current torque current instruction value IQS is saved to together with current weighing value W [current value-weighing value] form.
(2) elevator is in travel condition
Directly terminate.
(3) elevator is in halted state
Judge whether the quantity recorded in [current value-weighing value] form is greater than predetermined value N: if Rule of judgment is set up, then recalculate n coefficient: a1' in function f () according to the data in above table by curve, ..., an', with a1', ..., the a1 of storage before an' replaces respectively ..., an, then above table is emptied, terminate; If Rule of judgment is false, then directly terminate.
In sum, the present invention can solve elevator run a period of time after weighing value and traction motor constant change the problem causing startability not good.And can see in the control step of detailed description of the invention, the present invention has maximally utilised the original control system of elevator and checking system, farthest reduces the cost that system realizes.
By specific embodiment, content of the present invention has been described in detail above, but these are not construed as limiting the invention.To one skilled in the art, protection scope of the present invention also comprises those various distortion done without departing from the principles of the present invention and improvement.
Claims (5)
1. an 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 torque current command value and gives described driver train, is driven the running of described traction motor by described driver train by described inverter;
It is characterized in that, the weighing value that when starting according to elevator, described meausring apparatus exports and torque current value have been stored before revising and for the various load state weighing values of assumed (specified) load component torque.
2. elevator weighing value diagnosis modification method according to claim 1, is characterized in that, torque current value both can refer to the torque current command value that described torque control unit produces also can refer to the torque current feedback value that described current sensor detects.
3. elevator weighing value diagnosis modification method according to claim 1, it is characterized in that, when described torque current value equal no-load torque current value that theory calculate goes out, semi-load torque current value or full load torque current value time, stored before the weighing value correction exported with the described meausring apparatus of its correspondence and for the torque of assumed (specified) load component zero load weighing value, weighing semi-load value or be fully loaded with weighing value.
4. elevator weighing value diagnosis modification method according to claim 1, it is characterized in that, the weighing value exported according to described meausring apparatus and described torque current value are extrapolated unloaded weighing value, weighing semi-load value and are fully loaded with weighing value, and revise before stored and for the torque of assumed (specified) load component zero load weighing value, weighing semi-load value and be fully loaded with weighing value.
5. elevator weighing value diagnosis modification method according to claim 1, it is characterized in that, the weighing value exported according to described meausring apparatus and described torque current value extrapolate the value of each coefficient in the function f () of assumed (specified) load component torque.
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| 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 |
| JP7165121B2 (en) * | 2019-12-26 | 2022-11-02 | 株式会社日立製作所 | 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0455273A (en) * | 1990-06-22 | 1992-02-21 | Mitsubishi Electric Corp | Control device of elevator |
| FI99108C (en) * | 1994-11-29 | 1997-10-10 | Kone Oy | A method of controlling an elevator |
-
2012
- 2012-04-27 CN CN201210128982.3A patent/CN103373649B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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