CN108773742A - Method for security protection, electric life controller and elevator device is driven by force - Google Patents
Method for security protection, electric life controller and elevator device is driven by force Download PDFInfo
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- CN108773742A CN108773742A CN201810843267.5A CN201810843267A CN108773742A CN 108773742 A CN108773742 A CN 108773742A CN 201810843267 A CN201810843267 A CN 201810843267A CN 108773742 A CN108773742 A CN 108773742A
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000004804 winding Methods 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 11
- 238000004590 computer program Methods 0.000 claims description 6
- 238000011897 real-time detection Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Elevator Control (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
Elevator device is driven the present invention provides method for security protection, electric life controller and by force, the method includes：When drive elevator enters emergency stop operating mode by force, stop to driving motor outputting drive voltage and to envelope star unit output envelope star signal, while band-type brake instruction is issued to band-type brake control unit；The envelope star unit drives by force the three-phase windings of the driving motor of elevator when receiving envelope star signal described in short circuit.The present invention by exporting envelope star signal when driving elevator by force and entering emergency stop operating mode immediately; and band-type brake instruction is issued simultaneously; electronic seal star control is carried out under motor rotation status, avoiding the elevator stall before band-type brake comes into force leads to problems such as car slipping apart from long, timely, the reliable safeguard protection of realization.
Description
Technical field
The present invention relates to field of elevator control, more specifically to a kind of method for security protection, electric life controller and
It is strong to drive elevator device.
Background technology
Currently, the seen vertical ladder system overwhelming majority is tractive driving formula elevator (hereinafter referred traction electricity in public
Ladder).In towed elevator, traction sheave as driving part, car and counterweight by steel wire hang on the traction sheave.Elevator control
Cabinet driving host processed drives traction sheave, and by the friction traction drive car orbital motion of wheel grooving.It is run in elevator
In the process, if occurring, safety return circuit disconnects or driving class failure, towed elevator can enter emergency stop state, general control sequential
It is：Switch board first stops driving output, then sends out band-type brake instruction, and elevator stops by band-type brake, finally carries out envelope star and (usually adopts
The operation of envelope star is carried out with machinery envelope star contactor).
In addition, also having a kind of vertical ladder system to be called forces driven elevators (hereinafter referred drives by force elevator).The strong drive elevator
The main distinction with towed elevator is no counterweight, that is, relies on the mode of wire rope suspensioning to drive lift car.Relative to traction
Elevator, the strong energy consumption for driving elevator is larger, maximum ladder speed is relatively limited, this also leads to drive by force elevator in the higher applications of floor
It is less.
With the promotion of people's living standard in recent years, a large amount of of villa ladder popularize to strong drive elevator applications space.Not
Villa ladder floor is short, terraced speed is low, and strong drive elevator saves counterweight and not only reduces elevator cost, also can be that the car of installation bigger be risen
Go out space, therefore as the hot spot of each Zhu Ti factories concern.The strong elevator control cabinet that drives is the control for continuing to use towed elevator mostly at present
Cabinet, or restructured according to the switch board of towed elevator, the processing logic under emergency stop operating mode be still first stop driving exporting,
Band-type brake is played again, finally seals star.
However, for driving elevator by force, since unilateral driving force is larger, under emergency stop operating mode, from driving output is stopped to band-type brake
Really action, during which has hundreds of milliseconds of time lift cars to be in runaway condition.This short hundreds of milliseconds are likely to allow car
There is longer car slipping distance, or reach it is higher ladder speed, it is possible to cause safety tongs to work, cause it is oppressive, come not to rescue belts
Just.
Invention content
The technical problem to be solved in the present invention is that there are car slipping distances under emergency stop operating mode for above-mentioned strong drive elevator
Long, ladder speed changes big problem, provides a kind of method for security protection, electric life controller and drives elevator device by force.
The technical solution that the present invention solves above-mentioned technical problem is to provide a kind of method for security protection, is applied to strong drive electricity
The electric life controller of ladder, including：
When drive elevator enters emergency stop operating mode by force, stop sealing to driving motor outputting drive voltage and to envelope star unit output
Star signal, while issuing band-type brake instruction to band-type brake control unit；
The envelope star unit drives by force the three-phase windings of the driving motor of elevator when receiving envelope star signal described in short circuit.
In method for security protection of the present invention, the envelope star unit is integrated in inverter unit, and the envelope star
The control terminal for the power cell that signal is output in the inverter unit simultaneously makes bridge bridge under three-phase in the inverter unit
Arm simultaneously turns on.
In method for security protection of the present invention, the method further includes：
Detection envelope star electric current in real time；
When sealing star open state and the envelope star electric current is more than the first preset value, stop exporting to the inverter unit
It seals star and controls signal.
In method for security protection of the present invention, the method further includes：In envelope star closed state and the envelope star
Envelope star being exported to the inverter unit again when electric current is less than the second preset value and controlling signal, second preset value is less than institute
State the first preset value.
In method for security protection of the present invention, the method further includes：In envelope star open state, detection in real time is sealed
Star electric current, and when the envelope star electric current is more than third preset value, stop exporting envelope star control signal to the inverter unit
And it alarms.
The present invention also provides a kind of electric life controller, including memory and processor, being stored in the memory can be
The computer program run on the processor, the processor realize method as described above when executing the computer program
Step.
The present invention also provides a kind of strong drive elevator devices, including electric life controller as described above.
The present invention also provides a kind of electric life controller, including cabinet and positioned at detection circuit in cabinet, master controller, embrace
Lock control circuit, envelope star circuit and drive control circuit；Wherein：The detection circuit is connected to the master controller, and
When detecting safety return circuit disconnection or electric life controller failure fault-signal is sent to the master controller；The master controller point
Not Lian Jie drive control circuit, envelope star circuit and band-type brake control circuit, and in the fault-signal for receiving the detection circuit
When stop to drive control circuit output drive signal, and export envelope and star signal and issue band-type brake to the band-type brake control circuit
Instruction.
In electric life controller of the present invention, the envelope star circuit is integrated in inverter unit, and the inverter
Unit makes bridge bridge arm under three-phase simultaneously turn on realization envelope star according to the envelope star signal of the master controller.
In electric life controller of the present invention, the electric life controller further includes current detecting unit, the electric current
Detection unit is connected to the output phase line of the inverter unit, and detects the inverter unit output phase line current；It is described
Master controller is connected to the current detecting unit, and adjusts Feng Xingxin according to the phase line current that the current detecting unit measures
Number.
The method for security protection of the present invention and drives by force elevator device at electric life controller, by entering urgency driving elevator by force
When shut-down condition immediately output envelope star signal, and issue simultaneously band-type brake instruction, avoid it is out of control before band-type brake comes into force, realize and
When, reliable safeguard protection.The present invention is also maintained within a certain range using Hysteresis control by star electric current is sealed, and has both ensured have enough
Torque for balance the load again electric life controller can be protected not damaged because electric current is excessive.
Description of the drawings
Fig. 1 is the flow diagram of method for security protection first embodiment of the present invention；
Fig. 2 is the flow diagram of method for security protection second embodiment of the present invention；
Fig. 3 is the schematic diagram of electric life controller embodiment of the present invention；
Fig. 4 is the schematic diagram of another embodiment of electric life controller of the present invention.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Figure 1, being the schematic diagram of method for security protection first embodiment of the present invention, which can apply
In the electric life controller (such as frequency converter) for driving elevator by force, the strong safeguard protection for driving elevator under emergency stop operating mode is realized.This implementation
Example method for security protection include：
Step S11：When driving elevator by force and entering emergency stop operating mode, stop to driving motor outputting drive voltage and to Feng Xingdan
Member output envelope star signal, while issuing band-type brake instruction to band-type brake control unit.
Specifically, emergency stop operating mode can be entered in safety return circuit when any safety switch disconnection by driving elevator by force, can also driven
Enter emergency stop operating mode when dynamic failure, i.e., once driving the electric life controller of elevator by force in any safety switch exception or driving event occurring
When barrier, the driving voltage of driving motor is immediately turned off, and envelope star signal is sent to envelope star unit, while sending out to band-type brake control unit
Band-type brake is sent to instruct.
Step S12：For envelope star unit when receiving envelope star signal, short circuit drives by force the three-phase windings of the driving motor of elevator.
Above-mentioned envelope star operates in the three-phase windings for making driving motor and generates the moment of resistance, reduces the driving motor rotating speed until lift car is slow
Slow car slipping, last band-type brake execution, motor are stopped by locking, lift car.
Above-mentioned method for security protection can really be moved issuing band-type brake instruction (drive elevator by force and emergency stop operating mode occur) to band-type brake
In hundreds of milliseconds made, driving motor rotating speed is reduced by sealing star control, so that the slow car slipping of lift car, substantially increases strong
Drive safety of the elevator in emergency stop operating mode.
To improve the response speed of envelope star control, above-mentioned method for security protection uses electronic seal star, i.e., above-mentioned envelope star unit
The inverter unit being integrated in electric life controller, and seal the control that star signal is output to the power cell in inverter unit
End.Correspondingly, the envelope star signal in step S11 is low and high level signal, by making in inverter unit bridge bridge arm under three-phase
Electronic seal star is realized in conducting.Certainly, in practical applications, traditional machinery envelope star contactor can also be used and carry out envelope star, but its
Not only low-response, sealing envelope star contactor under starlike state has current sound, and the high current that star braid is sealed in being rotated for motor is asked
Topic, no image of Buddha electronic seal star equally carry out Hysteresis control processing.
As shown in Fig. 2, being the schematic diagram of method for security protection second embodiment of the present invention, this method specifically includes following step
Suddenly：
Step S20：Whether detection safety return circuit disconnects or whether occurs to drive class failure in real time, and is disconnected in safety return circuit
(i.e. any safety switch disconnects) or occur to execute step S21 when driving class failure.
Step S21：The strong electric life controller for driving elevator enters elevator emergency shut-down condition, and electric life controller can not be true at this time
The safe and stable operation of strong drive elevator device is protected, therefore is stopped immediately to driving motor outputting drive voltage.
Step S22：Envelope star (i.e. to envelope star unit output envelope star signal) is opened, while band-type brake is issued to band-type brake control unit
Instruction.In the step, preferentially use electronic seal star, since band-type brake has hundreds of milliseconds of action delay, in this period mainly according to
Slow down by electronic seal star, car slipping.
Step S23：Detection envelope star electric current in real time.Since motor is still running at high speed at this time, larger envelope star will produce
Electric current, it is therefore desirable to as far as possible be stablized envelope star electric current in a certain range by the envelope star current hysteresis-band control of carrier frequency rank.
Step S24：Over current fault (example whether currently has occurred according to detected envelope star electric current judgement in step S23
Such as judge to seal whether star electric current is more than 2.5 times of electric machine controller rated current), the over current fault acquiescence sealed during star occurs
Shorted to earth continues to seal star at this time having an aircraft bombing risk.Therefore work as confirmation and over current fault have occurred, directly execute step S25,
It is no to then follow the steps S26.
Step S25：Stop sealing star (such as stopping sending out envelope star signal to inverter unit), and reporting failure etc. to be repaired.
Step S26：Whether judge to seal star electric current more than the first preset value, is executed if being more than the first preset value if envelope star electric current
Step S27, it is no to then follow the steps S28.
Above-mentioned first preset value can be arranged according to the strong design parameter for driving elevator, usually could be provided as electric life controller volume
1.5~1.6 times of constant current, i.e. electric life controller can bear electric current within the scope of this.
Step S27：Envelope star is closed, such as stops exporting envelope star signal to inverter unit, so that three in inverter unit
The power cell of bridge bridge arm disconnects under phase, and return to step S23 continues detection envelope star electric current.
Step S28：Judge to seal whether star electric current is less than the second preset value, be executed if envelope star electric current is less than the second preset value
Step S29, it is no to then follow the steps S23, if envelope star electric current is more than the second preset value and is no more than the first preset value, keep untouched
Starlike state is constant, continues detection envelope star electric current, i.e., keeps envelope star to close in envelope star closed state, and envelope is kept in envelope star open state
Star is opened.
Above-mentioned second preset value can be arranged according to the strong design parameter for driving elevator, usually could be provided as electric life controller volume
1.4~1.5 times of constant current.
Step S29：Envelope star is opened, such as exports envelope star signal to inverter unit again.
From above-mentioned steps S21~S29 it is found that the method for security protection of the present embodiment seals star due to having adjusted in protection sequential
With the sequence of band-type brake, the high-speed cruising of driving motor, unilateral stress cause greatly envelope star electric current larger when envelope star is opened, it is therefore desirable to
To protect electric machine controller, (it is big that machinery envelope star can not be directed to envelope star electric current to cooperation envelope star current hysteresis-band control advancement
Small carry out Hysteresis control).In the case where over current fault does not occur, when envelope star electric current the second preset value and the first preset value it
Between when do not change the starlike state of envelope；When sealing star electric current more than the first preset value, envelope star is closed；It is preset when envelope star electric current is less than second
When value, it is ensured that envelope star is opened.
As shown in figure 3, being the schematic diagram of electric life controller embodiment of the present invention, which can be used for realizing strong
Drive elevator motion control.Electric life controller 3 in the present embodiment may include cabinet and positioned at detection circuit 31, master control in cabinet
Device 32, band-type brake control circuit 33, envelope star circuit 35 and drive control circuit 34 processed, and detection circuit 31, band-type brake control circuit
33, envelope star circuit 35 and drive control circuit 34 are connected respectively to master controller 32.In specific implementation, above-mentioned detection circuit
31, master controller 32, band-type brake control circuit 33, envelope star circuit 35 and drive control circuit 34 can be integrated into same printed circuit
Plate or multiple printed circuit boards.
Detection circuit 31 specifically may include that safety return circuit detection part and driving malfunction detection part, wherein safety return circuit are examined
It surveys part and drives whether the safety switch in each safety component of elevator device is closed in hoistway by force to detect；Driving malfunction test section
Point being then used to detect electric life controller, whether working properly (such as whether electric current, the voltage of detection electric life controller everywhere exceed
Corresponding threshold value etc.).Either safety return circuit disconnects the catastrophic failure of either electric life controller suddenly, and the strong elevator device that drives is
Make continuing to run with for short time that can all there is great risk, electric life controller may require that elevator emergency stop, i.e. detection circuit 31 at this time
When detecting that safety return circuit disconnects (i.e. any safety switch disconnects) or electric life controller failure, generates fault-signal and send
To master controller 32.
Software realization of the master controller 32 in combination with operation on an integrated circuit die, carrys out self-detection circuit receiving
When 31 fault-signal, make to drive by force in elevator device into emergency stop operating mode.Under emergency stop operating mode, master controller 32 stop first to
Driving motor outputting drive voltage, and star is sealed in advance (to the envelope output envelope star signal of star circuit 35, while to band-type brake control circuit 33
The instruction of lower section band-type brake), i.e., in the case where driving motor is not also static, envelope star is first carried out, terraced prompt drop is got off slow car slipping.Most
Band-type brake control circuit 33 controls band-type brake contactor and comes into force afterwards, and driving motor is stopped by locking, lift car.
To improve response speed, control envelope star electric current, above-mentioned envelope star circuit 35 can be used electronic seal star, that is, seal star circuit collection
At in inverter unit, specifically exported from master controller 32 to inverter unit for keeping bridge bridge arm under inverter unit three-phase same
When conduction level make driving motor winding short circuit, and envelope star is realized by inverter unit.Certainly, in practical applications, can also adopt
With envelope star contactor short circuit driving motor winding, but because its response speed is slower, and seal that star process is uncontrollable, and the safety is improved has
Limit.
It, can be in above-mentioned electric life controller 3 to avoid the envelope star electric current of envelope star process generation is excessive from damaging electric life controller 3
One current detection circuit for being connected to master controller 32 of middle increase, the current detection circuit can detect electricity when sealing star and opening
Stream, so that master controller 32 can further calculate acquisition envelope star electric current, and according to the Feng Xing electricity for calculating acquisition according to detection electric current
Stream is maintained within a certain range using Hysteresis control by star electric current is sealed, not only ensured to have enough torque for balance the load but also can protect
Shield electric life controller is not damaged.
Specifically, master controller 32 closes envelope star when sealing star electric current and being more than the first preset value, is less than the in envelope star electric current
Envelope star is opened when two threshold values, does not change the starlike state of envelope when sealing star electric current between the second preset value and the first preset value.Also,
Master controller 32 directly closes envelope star and simultaneously reports an error when sealing star electric current more than third threshold value.
Above-mentioned first preset value, the second preset value, third preset value can according to the strong relevant parameter for driving elevator control cabinet into
Row setting, specifically, above-mentioned first preset value can be 1.5~1.6 times of the rated current of electric life controller 3, the second preset value
Can be 1.4~1.5 times of the rated current of electric life controller 3, third preset value can be the rated current of electric life controller 3
2.5 again.
As shown in figure 4, the present invention also provides a kind of electric life controller, including memory 41 and processor 42, above-mentioned storage
The computer program that can be run on processor 42 is stored in device 41, processor 42 is realized such as when executing the computer program
Shown in Fig. 1, Fig. 2 the step of method.
The present invention also provides a kind of strong drive elevator devices, including electric life controller as described above.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
Subject to.
Claims (10)
1. a kind of method for security protection is applied to the strong electric life controller for driving elevator, which is characterized in that including：
When drive elevator enters emergency stop operating mode by force, stop exporting Feng Xingxin to driving motor outputting drive voltage and to envelope star unit
Number, while issuing band-type brake instruction to band-type brake control unit；
The envelope star unit drives by force the three-phase windings of the driving motor of elevator when receiving envelope star signal described in short circuit.
2. method for security protection according to claim 1, which is characterized in that the envelope star unit is integrated in inverter list
Member, and the control terminal of power cell that is output in the inverter unit of the envelope star signal and make in the inverter unit
Three-phase under bridge bridge arm simultaneously turn on.
3. method for security protection according to claim 2, which is characterized in that the method further includes：
Detection envelope star electric current in real time；
When sealing star open state and the envelope star electric current is more than the first preset value, stop exporting envelope star to the inverter unit
Control signal.
4. method for security protection according to claim 3, which is characterized in that the method further includes：Shape is closed in envelope star
It is exported again to the inverter unit when state and the envelope star electric current are less than the second preset value and seals star control signal, described second
Preset value is less than first preset value.
5. method for security protection according to claim 2, which is characterized in that the method further includes：In envelope star opening state
Star electric current is sealed in state, in real time detection, and when the envelope star electric current is more than third preset value, stops exporting to the inverter unit
Envelope star control signal is simultaneously alarmed.
6. a kind of electric life controller, which is characterized in that including memory and processor, being stored in the memory can be described
The computer program run on processor, which is characterized in that the processor realizes such as right when executing the computer program
It is required that the step of any one of 1 to 5 the method.
7. a kind of strong drive elevator device, which is characterized in that including electric life controller as claimed in claim 6.
8. a kind of electric life controller, which is characterized in that including cabinet and positioned at detection circuit, master controller, band-type brake in cabinet
Control circuit, envelope star circuit and drive control circuit；Wherein：The detection circuit is connected to the master controller, and is examining
When measuring safety return circuit disconnection or electric life controller failure fault-signal is sent to the master controller；The master controller difference
Drive control circuit, envelope star circuit and band-type brake control circuit are connected, and when receiving the fault-signal of the detection circuit
Stop to drive control circuit output drive signal, and exports envelope star signal and issue band-type brake to the band-type brake control circuit and refer to
It enables.
9. electric life controller according to claim 8, which is characterized in that the envelope star circuit is integrated in inverter unit,
And the inverter unit makes bridge bridge arm under three-phase simultaneously turn on realization envelope star according to the envelope star signal of the master controller.
10. electric life controller according to claim 8, which is characterized in that the electric life controller further includes current detecting
Unit, the current detecting unit are connected to the output phase line of the inverter unit, and detect the inverter unit output
Phase line current；The master controller is connected to the current detecting unit, and the phase line measured according to the current detecting unit
Electric current adjustment envelope star signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810843267.5A CN108773742B (en) | 2018-07-27 | 2018-07-27 | Safety protection method, elevator controller and forced-drive elevator system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810843267.5A CN108773742B (en) | 2018-07-27 | 2018-07-27 | Safety protection method, elevator controller and forced-drive elevator system |
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| Publication Number | Publication Date |
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| CN108773742A true CN108773742A (en) | 2018-11-09 |
| CN108773742B CN108773742B (en) | 2024-01-26 |
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| CN201810843267.5A Active CN108773742B (en) | 2018-07-27 | 2018-07-27 | Safety protection method, elevator controller and forced-drive elevator system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112299185A (en) * | 2020-10-29 | 2021-02-02 | 深圳市海浦蒙特科技有限公司 | Elevator emergency operation method, elevator system and storage medium |
| CN115490103A (en) * | 2022-10-25 | 2022-12-20 | 菱王电梯有限公司 | Star sealing control method and device |
| CN115650002A (en) * | 2022-10-25 | 2023-01-31 | 菱王电梯有限公司 | Electronic star sealing device for elevator and composite control method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112299185A (en) * | 2020-10-29 | 2021-02-02 | 深圳市海浦蒙特科技有限公司 | Elevator emergency operation method, elevator system and storage medium |
| CN115490103A (en) * | 2022-10-25 | 2022-12-20 | 菱王电梯有限公司 | Star sealing control method and device |
| CN115650002A (en) * | 2022-10-25 | 2023-01-31 | 菱王电梯有限公司 | Electronic star sealing device for elevator and composite control method |
| CN115490103B (en) * | 2022-10-25 | 2023-11-28 | 菱王电梯有限公司 | Star sealing control method and device |
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