CN104030145A - Escalator variable frequency control device and method - Google Patents
Escalator variable frequency control device and method Download PDFInfo
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- CN104030145A CN104030145A CN201410237136.4A CN201410237136A CN104030145A CN 104030145 A CN104030145 A CN 104030145A CN 201410237136 A CN201410237136 A CN 201410237136A CN 104030145 A CN104030145 A CN 104030145A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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Abstract
The invention discloses an escalator variable frequency control device. The escalator variable frequency control device comprises a variable frequency operation loop and a power frequency operation loop, a three-phase alternating current is connected with the variable frequency operation loop and the power frequency operation loop through a switch DZ1, the variable frequency operation loop is formed by sequentially connecting a wire inlet switch KM1, a frequency converter and a wire outlet switch KM2, the power frequency operation loop is formed by connecting a forward-rotating switch KM3 and a reverse-rotating switch KM4 in parallel, and the forward-rotating switch KM3 and the reverse-rotating switch KM4 are interlock switches. The escalator variable frequency control device saves energy and is high in reliability.
Description
Technical field
The invention belongs to Motor Control Field, be specifically related to a kind of frequency converting controller for moving staircase and method thereof.
Background technology
At present escalator and moving sidewalk in hotel, the place application such as market, subway, Railway station, office building, guild hall, airport is more, making things convenient for customers and improve service quality etc., aspect has played considerable effect.But the particularity due to its use occasion, part staircase is the state in unmanned idle running often, this will waste a large amount of electric energy, also makes staircase component (as motor, drop-gear box, handrail etc.) produce unnecessary mechanical wear and mechanical fatigue damage simultaneously.The escalator of general domestic installation adopts single speed alternating current dynamo as main frame more, and sprocket chain strip transmission, is furnished with brake motor, and step command speed is mostly 0.5m/s.Even this staircase without passenger with time still with specified speed, ceaselessly move, there is like this shortcomings such as power consumption is large, mechanical wear is serious, service life is low.
Summary of the invention
For the defect existing in prior art, the invention provides a kind of frequency converting controller for moving staircase and method thereof.
A frequency converting controller for moving staircase, described converter plant comprises converting operation loop and power frequency operation loop, three plase alternating current is connected with power frequency operation loop with converting operation loop by switch DZ1; Described converting operation loop is comprised of the service entrance switch KM1 being linked in sequence, frequency converter and outlet switch KM2; Described power frequency operation loop comprises forward K switch M3 and the reversal switch KM4 being connected in parallel, and described forward K switch M3 and reversal switch KM4 are interlock switch; Described power frequency loop and described frequency conversion loop are connected in parallel, and switch to another road when described power frequency loop or arbitrary the breaking down in described frequency conversion loop.
Optionally, by frequency converter, drive motor is carried out to frequency control, specifically comprises:
Frequency converter receives after the detection signal of staircase entrance photoelectric testing sensor, with first frequency driving motor, move, time meter starts the first timing period timing, within the first timing period, with first frequency driving motor, move, if again do not receive the detection signal of opto-electronic pickup within the first timing period, the first timing period finished rear frequency converter and is switched to second frequency operation, if within the first timing period, again receive the detection signal of opto-electronic pickup, time meter reclocking;
After the first timing period finished, the operation of frequency converter output second frequency driving motor, time meter starts the second timing period timing, if again do not receive the detection signal of opto-electronic pickup within the second timing period, to finish rear frequency converter out of service the second timing period, enters readiness for action, if within the second timing period, again receive the detection signal of opto-electronic pickup, stop the second timing period timing, frequency converter moves with first frequency driving motor;
When readiness for action, if receive the detection signal of staircase entrance photoelectric testing sensor, frequency converter moves with first frequency driving motor.
Optionally, frequency converter comprises central processing unit, driver element and inverter, and central processing unit is carried out frequency control by drive unit drives inverter to drive motor.
Optionally, the running state of described frequency converter record trouble previous moment staircase, according to forward K switch M3 or the reversal switch KM4 in the closed described power frequency operation of the running state of fault previous moment staircase loop.
Optionally, described frequency converter comprises braking resistor, described frequency converter receives the outside button of creeping, the anxious input that stops button, direction key and start-stop button, after the push button signalling that receives the button of creeping, transducer drive motor moves with the 3rd frequency, after the push button signalling that receives direction key, change the rotation of electrical motor, after receiving the push button signalling of start-stop button, start or stop electrical motor operation, when receiving anxious stopping after the push button signalling of button, stop driving motor operation, driving motor band-type brake is closed simultaneously.
A kind of staircase method for controlling frequency conversion, frequency converter receives after the detection signal of staircase entrance photoelectric testing sensor, with first frequency driving motor, move, time meter starts the first timing period timing, within the first timing period, with first frequency driving motor, move, if again do not receive the detection signal of opto-electronic pickup within the first timing period, the first timing period finished rear frequency converter and is switched to second frequency operation, if within the first timing period, again receive the detection signal of opto-electronic pickup, time meter reclocking;
After the first timing period finished, the operation of frequency converter output second frequency driving motor, time meter starts the second timing period timing, if again do not receive the detection signal of opto-electronic pickup within the second timing period, to finish rear frequency converter out of service the second timing period, enters readiness for action, if within the second timing period, again receive the detection signal of opto-electronic pickup, stop the second timing period timing, frequency converter moves with first frequency driving motor;
When readiness for action, if receive the detection signal of staircase entrance photoelectric testing sensor, frequency converter moves with first frequency driving motor.
Compared with prior art, a technical scheme in technique scheme has the following advantages or beneficial effect: energy-conservation, reliability is high, reduce the wastage, life-saving.
Further, by staircase is adopted to variable frequency control, reduced energy consumption, can reduce energy consumption with low cruise when no one takes simultaneously, when having guest to take advantage of staircase, staircase automatic smoothing is transitioned into normal speed to improve conveying efficiency; By adopting frequency conversion and power frequency to backup each other, switch mutually the reliability that has improved system.
accompanying drawing explanation
Fig. 1 is the structural representation of frequency-converting control device of the present invention;
Fig. 2 is the structural representation of frequency converter of the present invention;
Fig. 3 is the diagram of circuit of variable frequency control of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, further set forth the present invention.Should be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Embodiment 1
Refer to Fig. 1, staircase converter plant of the present invention comprises frequency converter, power frequency operation K switch M3, KM4 and drive motor, three plase alternating current R, S, T is that converter plant is powered by switch DZ1, converter plant comprises converting operation loop and power frequency operation loop, converting operation loop is by the K switch M1 being linked in sequence, frequency converter, K switch M2 forms, outlet 1 tunnel of switch DZ1 connects frequency converter through K switch M1, another road and power frequency operation K switch M3, KM4 connects, frequency converter is connected with the outlet of K switch M1, the outlet of frequency converter connects drive motor by K switch M2, power frequency operation loop comprises K switch M3, the KM4 being connected in parallel, K switch M3, KM4 are interlock switch, the outlet of K switch M3, KM4 connects drive motor, and motor forward, reversion operation can be controlled by K switch M3 and KM4 in the two ends of K switch M3, KM4 parallel connection and frequency converter.Power frequency loop and frequency conversion loop are connected in parallel, and switch to another road when any road outlet fault, for example, when frequency converter et out of order, automatically switch to the operation of power frequency loop, and staircase is with power frequency operation.
Below frequency converter of the present invention is described further, Fig. 2 shows the constructional drawing of frequency converter, frequency converter comprises central processing unit, driver element and inverter, central processing unit is carried out frequency control by drive unit drives inverter to drive motor, Central Processing Unit (CPU) receives outside detection signal and key-press input, according to the outward sign receiving, accordingly driver element, band-type brake, fault alarm and power frequency and K switch M3, KM4 is controlled.
Particularly, in the entrance of staircase, be provided with opto-electronic pickup, the signal that frequency converter produces according to opto-electronic pickup, when having people to take, the speed operation of staircase to set; When nobody takes, staircase slows down or is out of service.
Refer to Fig. 3, the optical signal of meeting blocking light electric transducer when people enters staircase from staircase mouth, thereby cause the variation of output voltage or the electric current of opto-electronic pickup, frequency converter can move with first frequency driving motor after receiving the signal of this variation, thereby be the rotating speed that central processing unit can drive the pwm pulse raising electrical motor that inverter output duty cycle is larger, make staircase Accelerating running.Further, in central processing unit, be provided with time meter, frequency converter receives and can start time meter after the signal that opto-electronic pickup detects and start the first timing period timing, within the first timing period with first frequency driving motor high-speed cruising, staircase high-speed cruising, if pass through elevator without passenger again within the first timing period, the first timing period finished rear frequency converter and will automatically switch to second frequency operation, if within the first timing period, have passenger again to touch opto-electronic pickup, time meter is by reclocking.After the first timing period finished, frequency converter can be exported the operation of second frequency driving motor, thereby be the rotating speed that central processing unit can drive the PWM reduction electrical motor that inverter output duty cycle is less, time meter starts the second timing period timing simultaneously, if pass through elevator without passenger again within the second timing period, the second timing period finished rear frequency converter by out of service, thereby stop drive motor running, in readiness for action, if within the second timing period, there is passenger again to trigger opto-electronic pickup, finish the second timing period timing, frequency converter is with first frequency driving motor high-speed cruising, when readiness for action, if passenger again trigger opto-electronic pickup frequency converter with first frequency driving motor high-speed cruising.In this way just can be so that when having guest to take advantage of staircase, staircase automatic smoothing is transitioned into normal speed to improve conveying efficiency, after staircase zero load, can be transitioned into lower-speed state by automatic smoothing again, at lower-speed state, after operation a period of time, can stop drive motor operation, to entering staircase to passenger again having been detected, thus staircase just can adopt soon-slowly-stop cycle mode to move.For example after photoelectric detection probe detects last passenger to enter staircase 60 seconds, staircase transfers the operation of 0.1m/s slow train to, out of service through 30 seconds staircases again, until detecting next bit passenger, photoelectric detection probe prepares to enter, staircase automatic steady accelerates to the fast vehicle speed of 0.5m/s.
Central processing unit can also receive outside key-press input signal, for example central processing unit can receive the button of creeping, suddenly stop button, direction key, the input of start-stop button etc., after the push button signalling that receives the button of creeping, frequency converter can move with the 3rd frequency by drive motor, at this operation scheme motor, will move with low speed, after the signal that receives direction key, the hand of rotation of electrical motor will change, thereby change the service direction of staircase, after pressing start-stop button, staircase will start or stop accordingly, anxious while stopping button when pressing, central processing unit can stop driving motor operation, drive band-type brake closure to make staircase so that speed is out of service faster simultaneously.
Further, in order to consume excess energy descending and that braking procedure produces, on frequency converter, add braking resistor R, can be so that motor stops faster by braking resistor R.
In order to improve the reliability of device, when detecting converting operation loop fault, system can automatically switch to power frequency operation loop, particularly, when central processing unit receives after breakdown signal, service entrance switch KM1 or outlet switch KM2 that central processing unit can stop driving inverter work or making inverter disconnect, thereby stop adopting the mode driving motor of frequency conversion, and record the running state of fault previous moment staircase, such as staircase rotation direction, speed etc.After disconnecting converting operation loop, central processing unit can be according to forward K switch M3 or the reversal switch KM4 in the closed power frequency operation of the running state of fault previous moment staircase loop, for example, when fault previous moment staircase just moves at forward, central processing unit is understood closed KM3, otherwise closed KM4, KM3 and KM4 are the switch of interlocking, have so just avoided closed forward K switch M3 and reversal switch KM4 simultaneously.
Embodiment 2
A kind of staircase method for controlling frequency conversion, frequency converter receives after the detection signal of staircase entrance photoelectric testing sensor, with first frequency driving motor, move, time meter starts the first timing period timing, within the first timing period, with first frequency driving motor, move, if again do not receive the detection signal of opto-electronic pickup within the first timing period, the first timing period finished rear frequency converter and is switched to second frequency operation, if within the first timing period, again receive the detection signal of opto-electronic pickup, time meter reclocking; After the first timing period finished, the operation of frequency converter output second frequency driving motor, time meter starts the second timing period timing, if again do not receive the detection signal of opto-electronic pickup within the second timing period, to finish rear frequency converter out of service the second timing period, enters readiness for action, if within the second timing period, again receive the detection signal of opto-electronic pickup, stop the second timing period timing, frequency converter moves with first frequency driving motor; When readiness for action, if receive the detection signal of staircase entrance photoelectric testing sensor, frequency converter moves with first frequency driving motor.
For the aforesaid embodiment that respectively installs, for simple description, therefore it is all expressed as to a series of module combination, but those skilled in the art should know, the present invention is not subject to the restriction of described module combination, because according to the present invention, certain module can adopt other modules to carry out; Secondly, those skilled in the art also should know, said apparatus embodiment all belongs to preferred embodiment, and related module might not be that the present invention is necessary.
Above the present invention is described in detail, has applied specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.
Claims (6)
1. a frequency converting controller for moving staircase, is characterized in that, described converter plant comprises converting operation loop and power frequency operation loop, and three plase alternating current is connected with power frequency operation loop with converting operation loop by switch DZ1; Described converting operation loop is comprised of the service entrance switch KM1 being linked in sequence, frequency converter and outlet switch KM2; Described power frequency operation loop comprises forward K switch M3 and the reversal switch KM4 being connected in parallel, and described forward K switch M3 and reversal switch KM4 are interlock switch; Described power frequency loop and described frequency conversion loop are connected in parallel, and switch to another road when described power frequency loop or arbitrary the breaking down in described frequency conversion loop.
2. frequency-converting control device according to claim 1, is characterized in that, by frequency converter, drive motor is carried out to frequency control, specifically comprises:
Frequency converter receives after the detection signal of staircase entrance photoelectric testing sensor, with first frequency driving motor, move, time meter starts the first timing period timing, within the first timing period, with first frequency driving motor, move, if again do not receive the detection signal of opto-electronic pickup within the first timing period, the first timing period finished rear frequency converter and is switched to second frequency operation, if within the first timing period, again receive the detection signal of opto-electronic pickup, time meter reclocking;
After the first timing period finished, the operation of frequency converter output second frequency driving motor, time meter starts the second timing period timing, if again do not receive the detection signal of opto-electronic pickup within the second timing period, to finish rear frequency converter out of service the second timing period, enters readiness for action, if within the second timing period, again receive the detection signal of opto-electronic pickup, stop the second timing period timing, frequency converter moves with first frequency driving motor;
When readiness for action, if receive the detection signal of staircase entrance photoelectric testing sensor, frequency converter moves with first frequency driving motor.
3. frequency-converting control device according to claim 1, is characterized in that, frequency converter comprises central processing unit, driver element and inverter, and central processing unit is carried out frequency control by drive unit drives inverter to drive motor.
4. frequency-converting control device according to claim 1, it is characterized in that, the running state of described frequency converter record trouble previous moment staircase, according to forward K switch M3 or the reversal switch KM4 in the closed described power frequency operation of the running state of fault previous moment staircase loop.
5. frequency-converting control device according to claim 1, it is characterized in that, described frequency converter comprises braking resistor, described frequency converter receives the outside button of creeping, suddenly stop button, direction key, input with start-stop button, after the push button signalling that receives the button of creeping, transducer drive motor moves with the 3rd frequency, after the push button signalling that receives direction key, change the rotation of electrical motor, after receiving the push button signalling of start-stop button, start or stop electrical motor operation, when receiving anxious stopping after the push button signalling of button, stop driving motor operation, driving motor band-type brake is closed simultaneously.
6. a staircase method for controlling frequency conversion, it is characterized in that, frequency converter receives after the detection signal of staircase entrance photoelectric testing sensor, with first frequency driving motor, move, time meter starts the first timing period timing, within the first timing period, with first frequency driving motor, move, if again do not receive the detection signal of opto-electronic pickup within the first timing period, the first timing period finished rear frequency converter and is switched to second frequency operation, if within the first timing period, again receive the detection signal of opto-electronic pickup, time meter reclocking,
After the first timing period finished, the operation of frequency converter output second frequency driving motor, time meter starts the second timing period timing, if again do not receive the detection signal of opto-electronic pickup within the second timing period, to finish rear frequency converter out of service the second timing period, enters readiness for action, if within the second timing period, again receive the detection signal of opto-electronic pickup, stop the second timing period timing, frequency converter moves with first frequency driving motor;
When readiness for action, if receive the detection signal of staircase entrance photoelectric testing sensor, frequency converter moves with first frequency driving motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410237136.4A CN104030145B (en) | 2014-05-30 | 2014-05-30 | Frequency converting controller for moving staircase and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410237136.4A CN104030145B (en) | 2014-05-30 | 2014-05-30 | Frequency converting controller for moving staircase and method thereof |
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| CN104030145A true CN104030145A (en) | 2014-09-10 |
| CN104030145B CN104030145B (en) | 2016-09-28 |
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| CN201410237136.4A Expired - Fee Related CN104030145B (en) | 2014-05-30 | 2014-05-30 | Frequency converting controller for moving staircase and method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444649A (en) * | 2015-01-08 | 2015-03-25 | 徐州建机工程机械有限公司 | Lift electronic control system and lift |
| CN104868744A (en) * | 2015-05-27 | 2015-08-26 | 江苏亨通光纤科技有限公司 | Dual-motor single variable-frequency drive in drive system and control method thereof |
| CN105099335A (en) * | 2015-08-19 | 2015-11-25 | 佘宏武 | Control device and conveyer system comprising same |
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| JPH0930764A (en) * | 1995-07-13 | 1997-02-04 | Takenaka Komuten Co Ltd | Escalator system |
| JP3584309B2 (en) * | 1998-03-12 | 2004-11-04 | 株式会社日立製作所 | Passenger conveyor |
| CN1592714A (en) * | 2002-10-16 | 2005-03-09 | 三菱电机株式会社 | Controller for passenger moving walkway |
| CN101012041A (en) * | 2007-01-31 | 2007-08-08 | 武汉捷能自动化技术有限公司 | Escalator energy-saving control process and apparatus |
| CN201190075Y (en) * | 2007-10-31 | 2009-02-04 | 苏州新达电扶梯部件有限公司 | Drive control system of escalator or moving sidewalk |
| CN201415910Y (en) * | 2009-04-13 | 2010-03-03 | 杭州思佳电气技术有限公司 | Escalator controller |
| CN201882759U (en) * | 2010-11-25 | 2011-06-29 | 西子奥的斯电梯有限公司 | Intelligent speed control system for escalator or moving sidewalk |
-
2014
- 2014-05-30 CN CN201410237136.4A patent/CN104030145B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0930764A (en) * | 1995-07-13 | 1997-02-04 | Takenaka Komuten Co Ltd | Escalator system |
| JP3584309B2 (en) * | 1998-03-12 | 2004-11-04 | 株式会社日立製作所 | Passenger conveyor |
| CN1592714A (en) * | 2002-10-16 | 2005-03-09 | 三菱电机株式会社 | Controller for passenger moving walkway |
| CN101012041A (en) * | 2007-01-31 | 2007-08-08 | 武汉捷能自动化技术有限公司 | Escalator energy-saving control process and apparatus |
| CN201190075Y (en) * | 2007-10-31 | 2009-02-04 | 苏州新达电扶梯部件有限公司 | Drive control system of escalator or moving sidewalk |
| CN201415910Y (en) * | 2009-04-13 | 2010-03-03 | 杭州思佳电气技术有限公司 | Escalator controller |
| CN201882759U (en) * | 2010-11-25 | 2011-06-29 | 西子奥的斯电梯有限公司 | Intelligent speed control system for escalator or moving sidewalk |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444649A (en) * | 2015-01-08 | 2015-03-25 | 徐州建机工程机械有限公司 | Lift electronic control system and lift |
| CN104868744A (en) * | 2015-05-27 | 2015-08-26 | 江苏亨通光纤科技有限公司 | Dual-motor single variable-frequency drive in drive system and control method thereof |
| CN105099335A (en) * | 2015-08-19 | 2015-11-25 | 佘宏武 | Control device and conveyer system comprising same |
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| CN104030145B (en) | 2016-09-28 |
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