CN109921717A - Escalator is exchanged work switches compensation angle method of adjustment and system frequently - Google Patents
Escalator is exchanged work switches compensation angle method of adjustment and system frequently Download PDFInfo
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- CN109921717A CN109921717A CN201711321416.3A CN201711321416A CN109921717A CN 109921717 A CN109921717 A CN 109921717A CN 201711321416 A CN201711321416 A CN 201711321416A CN 109921717 A CN109921717 A CN 109921717A
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Abstract
It exchanges work the present invention relates to a kind of escalator and switches compensation angle method of adjustment and system frequently, escalator is exchanged work switches compensation angle method of adjustment frequently, the following steps are included: carrying out frequency switching of exchanging work to escalator according to relevant parameter, electromechanical shock electric current of the escalator motor in frequency handoff procedure of exchanging work is obtained；Relevant parameter includes currently adjusting corresponding switching compensation angle；When electromechanical shock electric current is greater than electromechanical shock current threshold, compare electromechanical shock electric current and according to the preceding electromechanical shock electric current for once adjusting corresponding switching compensation angle and obtaining；It according to comparison result, determines that adjustment currently adjusts the adjustment mode at corresponding switching compensation angle, is adjusted corresponding switching compensation angle next time；Adjustment mode includes increasing to preset to adjust the angle and reduce default adjust the angle；When obtaining the electromechanical shock electric current less than electromechanical shock current threshold, it is confirmed as the electromechanical shock electric current for being less than electromechanical shock current threshold corresponding switching compensation angle finally to switch compensation angle.
Description
Technical field
The present invention relates to escalator control fields, exchange work more particularly to a kind of escalator and switch the adjustment of compensation angle frequently
Method and system.
Background technique
Currently, in public places escalator using more and more common, for energy conservation and environmental protection, when for a long time, nobody multiplies
When seat, the operation of escalator low speed provides power supply power supply by frequency converter, when occupied, escalator high-speed cruising, and switching
It powers to power frequency supply.
When escalator is switched to power frequency driving operation by frequency conversion drive, escalator is caused to reduce power supply switching
Significantly to shake, conventional method is to monitor the frequency and phase of inverter supply, it is close to the frequency and phase of power frequency supply,
And after switching compensation angle is added in frequency converter output phase, switching power supply completion is exchanged work to be switched frequently.
During realization, inventor has found that at least there are the following problems in traditional technology: the switching compensation of escalator
Angle is different due to the intrinsic difference of every equipment, these intrinsic differences include that escalator motor factor, inverter output terminal have
Reactive filter etc., in practical applications, switching compensation angle is the shake exchanged work when switching frequently according to escalator is artificially experienced,
And it carries out obtained from constantly adjusting.This method, human cost is high, and time-consuming, and regulated efficiency is low, is not easy to push away on a large scale
Extensively.
Summary of the invention
Based on this, it is necessary to aiming at the problem that switching compensation angle adjusts time-consuming low efficiency, provide a kind of escalator and become
Power frequency switching compensation angle method of adjustment and system.
To achieve the goals above, on the one hand, exchange work the embodiment of the invention provides a kind of escalator and switch compensation frequently
Angle method of adjustment, comprising the following steps:
Frequency switching of exchanging work is carried out to escalator according to relevant parameter, obtains escalator motor in frequency handoff procedure of exchanging work
In electromechanical shock electric current；Relevant parameter includes currently adjusting corresponding switching compensation angle；
When electromechanical shock electric current is greater than electromechanical shock current threshold, compare electromechanical shock electric current and according to preceding primary adjustment
The electromechanical shock electric current that corresponding switching compensation angle obtains；
According to comparison result, determines that adjustment currently adjusts the adjustment mode at corresponding switching compensation angle, adjusted next time
Whole corresponding switching compensates angle；Adjustment mode includes increasing to preset to adjust the angle and reduce default adjust the angle；
When obtaining the electromechanical shock electric current less than electromechanical shock current threshold, the electricity of electromechanical shock current threshold will be less than
It is confirmed as finally switching compensation angle in machine dash current corresponding switching compensation angle.
Frequency switching of exchanging work for the first time is carried out to escalator according to relevant parameter in one of the embodiments, is obtained from
Dynamic staircase the electromechanical shock electric current in frequency handoff procedure of exchanging work for the first time the step of in:
Angle is compensated according to default switching, and frequency switching of exchanging work is carried out to escalator；
And
It further include step after escalator is obtained the electromechanical shock electric current in frequency handoff procedure of exchanging work for the first time the step of
It is rapid:
When electromechanical shock electric current of the escalator in frequency handoff procedure of exchanging work for the first time is greater than electromechanical shock current threshold
When, default adjustment angle is increased or decreased to default switching compensation angle, obtains second of adjustment corresponding switching compensation angle.
Relevant parameter further includes that the output voltage frequency of frequency converter, the amendment of frequency converter are defeated in one of the embodiments,
The voltage-phase of voltage-phase and power frequency supply out；
The amendment output voltage phase of frequency converter is the output voltage phase of frequency converter and currently adjusts corresponding switching benefit
Repay the sum of angle.
Frequency switching of exchanging work is carried out to escalator according to relevant parameter in one of the embodiments, obtains escalator
The step of electromechanical shock electric current in frequency handoff procedure of exchanging work includes:
When the voltage-phase of the output voltage frequency of frequency converter, the amendment output voltage phase of frequency converter and power frequency supply is full
When sufficient switching condition, control escalator carries out frequency switching of exchanging work；
It monitors motor of the escalator motor in frequency handoff procedure of exchanging work and exports electric current, electric current is exported according to motor, is obtained
To electromechanical shock electric current of the escalator in frequency handoff procedure of exchanging work；
Wherein, it is predeterminated frequency that switching condition, which is the output voltage frequency of frequency converter, and the amendment output voltage of frequency converter
The absolute value of the difference of the voltage-phase of phase and power frequency supply is less than handoff angle difference threshold value.
In one of the embodiments, according to comparison result, determine that adjustment currently adjusts the tune at corresponding switching compensation angle
Perfect square formula, being adjusted the step of corresponding switching compensates angle next time includes:
When electromechanical shock electric current is greater than according to the preceding electromechanical shock electric current for once adjusting corresponding switching compensation angle acquisition,
Corresponding switching compensation angle is currently adjusted using the adjustment mode opposite with preceding primary adjustment, adjustment；
Or
When electromechanical shock electric current is less than according to the preceding electromechanical shock electric current for once adjusting corresponding switching compensation angle acquisition,
Using with it is preceding once adjust identical ground adjustment mode, adjustment currently adjusts corresponding switching and compensates angle.
The value range adjusted the angle is preset in one of the embodiments, at 1 degree~10 degree.
On the other hand, it exchanges work the embodiment of the invention also provides a kind of escalator and switches compensation angle adjustment system, packet frequently
It includes:
Electromechanical shock electric current acquiring unit in one of the embodiments, for according to relevant parameter to escalator into
Row is exchanged work to be switched frequently, obtains electromechanical shock electric current of the escalator motor in frequency handoff procedure of exchanging work；Relevant parameter includes working as
Preceding adjustment corresponding switching compensation angle；
Electromechanical shock electric current comparing unit is used for when electromechanical shock electric current is greater than electromechanical shock current threshold, more electric
Machine dash current and according to it is preceding once adjust it is corresponding switching compensation angle obtain electromechanical shock electric current；
Adjustment unit determines that the current adjustment of adjustment corresponds to for the comparison result according to electromechanical shock electric current comparing unit
Switching compensation angle adjustment mode, adjusted corresponding switching next time and compensate angle；Adjustment mode includes increasing default adjust
Whole angle and the default adjustment angle of reduction；
Result confirmation unit is adjusted, it, will be small for when obtaining the electromechanical shock electric current less than electromechanical shock current threshold
It is confirmed as finally switching compensation angle in the electromechanical shock electric current of electromechanical shock current threshold corresponding switching compensation angle.
On the one hand, it the embodiment of the invention provides a kind of escalator controller, including memory, processor and is stored in
On memory and the computer program that can run on a processor, processor realizes that above-mentioned escalator is exchanged work frequency when executing program
The step of switching compensation angle method of adjustment.
On the other hand, the embodiment of the invention also provides a kind of computer readable storage medium, it is stored thereon with computer
Program, the computer program realize that above-mentioned escalator is exchanged work and switch the step of compensation angle method of adjustment frequently when being executed by processor
Suddenly.
A technical solution in above-mentioned technical proposal is had the following advantages and beneficial effects:
Escalator of the present invention is exchanged work switches compensation angle method of adjustment and system frequently, according to comprising currently adjusting corresponding cut
The relevant parameter for changing compensation angle carries out frequency switching of exchanging work to escalator, obtains escalator in frequency handoff procedure of exchanging work
Electromechanical shock electric current, according to electromechanical shock electric current and according to the preceding electromechanical shock electricity for once adjusting corresponding switching compensation angle and obtaining
The comparison result of stream is determined to the adjustment mode for currently adjusting corresponding switching compensation angle, to be adjusted correspondence next time
Switching compensate angle, finally obtain corresponding less than the electromechanical shock electric current of electromechanical shock current threshold switching and compensate angle.It is based on
The present invention adjusts switching compensation angle by electromechanical shock electric current, obtains the electromechanical shock within the scope of electromechanical shock current threshold
The corresponding switching compensation angle of electric current simultaneously confirms as finally switching compensation angle, can effectively improve the adjustment at final switching compensation angle
Efficiency, time needed for reducing adjustment.
Detailed description of the invention
Fig. 1 exchanges work for the escalator of an embodiment switches compensation angle method of adjustment flow chart frequently；
Fig. 2 is to obtain escalator in an embodiment to illustrate in the process of the electromechanical shock electric current for frequency handoff procedure of exchanging work
Figure；
Fig. 3 exchanges work for the escalator of an embodiment switches the adjustment flow diagram of compensation angle method of adjustment frequently；
Fig. 4 exchanges work for the escalator of an embodiment switches compensation angle adjustment system schematic frequently.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give preferred embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is make it is more thorough and comprehensive to the disclosure.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
In order to solve the problems, such as that switching compensation angle adjusts time-consuming low efficiency, the present invention provides a kind of escalators to exchange work
Frequency switching compensation angle method of adjustment embodiment, as shown in Figure 1, may comprise steps of:
Step S110 carries out frequency switching of exchanging work to escalator according to relevant parameter, obtains escalator motor and exchanging work
Electromechanical shock electric current in frequency handoff procedure；Relevant parameter includes currently adjusting corresponding switching compensation angle；
Specifically, electromechanical shock electric current of the escalator motor in frequency handoff procedure of exchanging work is that motor output electric current exists
Escalator is exchanged work the maximum value in frequency handoff procedure, is a scalar.Generally when biggish electromechanical shock electric current occurs in motor
When, shake by a relatively large margin can also occur for escalator.
Step S120 compares electromechanical shock electric current when electromechanical shock electric current is greater than or equal to electromechanical shock current threshold
The corresponding electromechanical shock electric current for switching compensation angle and obtaining once is adjusted with according to preceding；
Specifically, electromechanical shock current threshold is a preset value, it is a scalar, for judging that escalator is becoming
Whether the switching compensation angle in power frequency handoff procedure needs to adjust.When electromechanical shock electric current is greater than or equal to electromechanical shock current threshold
It is excessive according to the electromechanical shock electric current obtained including the relevant parameter for currently adjusting corresponding switching compensation angle when value, illustrate phase
The jitter amplitude for the escalator answered is also bigger, needs to be adjusted to currently adjusting corresponding switching compensation angle.
For example, power is the motor of 7.5KW, rated current 18A sets electromechanical shock current threshold as 30A, works as motor
Dash current is greater than 30A, decides that shake of the escalator when frequency of exchanging work switches is excessive；When electromechanical shock electric current be less than 30A,
Decide that escalator being capable of even running when frequency of exchanging work switches.
Step S130 determines that adjustment currently adjusts the adjustment mode at corresponding switching compensation angle, obtains according to comparison result
Corresponding switching compensation angle is adjusted next time；Adjustment mode includes increasing to preset to adjust the angle and reduce default adjust the angle；
Specifically, determination compensates the corresponding of angle to corresponding switching is currently adjusted according to the comparison result of step S120
Specific adjustment mode, corresponding switching compensation angle is currently adjusted according to adjustment mode adjustment, is adjusted correspondence next time
Switching compensate angle.According to front and back, escalator is exchanged work the variation of the electromechanical shock electric current in frequency handoff procedure twice, Ke Yixiang
The corresponding switching of the adjustment answered compensates angle, and the electromechanical shock electric current once adjusted after making again is smaller.
Step S140 will be less than electromechanical shock electricity when obtaining the electromechanical shock electric current less than electromechanical shock current threshold
It is confirmed as finally switching compensation angle in the electromechanical shock electric current corresponding switching compensation angle for flowing threshold value.
Specifically, illustrating that escalator is becoming when obtaining the electromechanical shock electric current less than electromechanical shock current threshold
The operation of power frequency handoff procedure is more steady, and the corresponding switching of electromechanical shock electric current for being less than electromechanical shock current threshold is compensated angle
It is confirmed as finally switching compensation angle, the adjustment at the angle of switching compensation frequently of completing to exchange work to escalator.
Escalator is exchanged work switches compensation angle method of adjustment embodiment frequently, by electromechanical shock electric current and according to preceding primary
The comparison for adjusting the electromechanical shock electric current that corresponding switching compensation angle obtains, according to comparison result, to currently adjusting corresponding cut
It changes compensation angle to be adjusted correspondingly, electromechanical shock electric current is made to rapidly converge to the numberical range less than electromechanical shock current threshold
It is interior, when obtaining the electromechanical shock electric current less than electromechanical shock current threshold, it is confirmed that being less than the electricity of electromechanical shock current threshold
Machine dash current corresponding switching compensation angle is that the method for adjustment final switching finally to be obtained compensates angle.Most egress in this method
The acquisition for changing compensation angle does not depend on manual operation and judgement, reduces human cost, can faster obtain compared to artificial debugging
Final switching compensation angle, the effective regulated efficiency for improving final switching compensation angle, time needed for reducing adjustment.
In a specific embodiment, frequency switching of exchanging work for the first time is carried out to escalator according to relevant parameter, obtained
Escalator the electromechanical shock electric current in frequency handoff procedure of exchanging work for the first time the step of in:
Angle is compensated according to default switching, and frequency switching of exchanging work is carried out to escalator；
And
Escalator is obtained to further comprise the steps of: after the electromechanical shock electric current in frequency handoff procedure of exchanging work for the first time
When electromechanical shock electric current of the escalator in frequency handoff procedure of exchanging work for the first time is greater than or equal to electromechanical shock electricity
When flowing threshold value, default adjustment angle is increased or decreased to default switching compensation angle, obtains the corresponding switching compensation of second of adjustment
Angle.
Specifically, being cut in the frequency of exchanging work that the adjustment process each time to switching compensation angle all includes an escalator
It changes, during carrying out first time adjustment, the corresponding first time that will do it escalator exchanges work to be switched frequently.Escalator into
Row frequency switching of exchanging work for the first time is according to including that default switching compensates the relevant parameter at angle and switches over.Default switching compensation
Angle is to adjust corresponding switching for the first time to compensate angle.
For example, according to including that the default relevant parameter for switching compensation angle carries out frequency switching of exchanging work for the first time to escalator,
Electromechanical shock electric current of the escalator in frequency handoff procedure of exchanging work for the first time is obtained, when in frequency handoff procedure of exchanging work for the first time
When electromechanical shock electric current is greater than or equal to electromechanical shock current threshold, default adjusting angle is increased or decreased to default switching compensation angle
Degree.Using default switching compensation angle adjusted as corresponding switching compensation angle is adjusted for the second time, adjusted for obtaining second
Corresponding escalator is exchanged work the electromechanical shock electric current in frequency handoff procedure for the second time.Cumulative by adjusting number finally obtains
So that the final switching that electromechanical shock electric current is less than electromechanical shock current threshold compensates angle.
In a specific embodiment, relevant parameter further includes the amendment of the output voltage frequency of frequency converter, frequency converter
The voltage-phase of output voltage phase and power frequency supply；
The amendment output voltage phase of frequency converter is the output voltage phase of frequency converter and currently adjusts corresponding switching benefit
Repay the sum of angle.
Specifically, the switching compensation angle in relevant parameter is updated with adjusting each time, the number of other relevant parameters
Value is to exchange work before frequency switches to detect in escalator, when relevant parameter is all satisfied switching condition, carries out the work of escalator
Frequency conversion switching.
In a specific embodiment, escalator exchange work frequency switch before, escalator be by inverter supply, because
The output voltage frequency of this frequency converter is also equal to the frequency of escalator motor operation, and the output voltage frequency of frequency converter passes through
The encoder connecting with escalator motor is controlled to collect.
In a specific embodiment, escalator exchange work frequency switch before, escalator motor be by inverter supply,
Motor output voltage phase is equal to the output voltage phase of frequency converter.Therefore, the process of the output voltage phase of frequency converter is obtained
Including control encoder acquisition displacement motor information, motor side galvanometer acquisition motor export electric current, according to displacement motor information
Electromechanics speed is obtained, electric current is exported according to motor and obtains motor slip angle, according to electromechanics speed and motor slip angle
The electrical speed of motor is obtained, then integrates to obtain the output voltage phase of frequency converter.
In a specific embodiment, the acquisition process of the voltage-phase of power frequency supply includes: to be detected by analog/digital conversion
Any two-way input voltage signal of device acquisition three phase worker power；The input of third road is obtained according to two-way input voltage signal
Voltage signal；CLARK transformation is carried out to three road input voltage signals, obtains be transformed into two-phase rectangular coordinate system two voltages
Amplitude；Two voltage magnitudes in two-phase rectangular coordinate system are divided by, and carry out arctangent computation, obtain the voltage of power frequency supply
Phase.
In a specific embodiment, as shown in Fig. 2, carrying out frequency switching of exchanging work to escalator according to relevant parameter,
The step of obtaining electromechanical shock electric current of the escalator in frequency handoff procedure of exchanging work include:
Step S210, when the output voltage frequency of frequency converter, the amendment output voltage phase of frequency converter and power frequency supply
When voltage-phase meets switching condition, control escalator carries out frequency switching of exchanging work；
Step S220 monitors motor of the escalator motor in frequency handoff procedure of exchanging work and exports electric current, defeated according to motor
Electric current out obtains electromechanical shock electric current of the escalator in frequency handoff procedure of exchanging work；
Wherein, it is predeterminated frequency that switching condition, which is the output voltage frequency of frequency converter, and the amendment output voltage of frequency converter
The absolute value of the difference of the voltage-phase of phase and power frequency supply is less than handoff angle difference threshold value.
Specifically, when the output voltage frequency of frequency converter is equal to predeterminated frequency, and the amendment output voltage phase of frequency converter
When position and the absolute value of the difference of the voltage-phase of power frequency supply are less than handoff angle difference threshold value, switching command is assigned, control becomes
Frequency operation contactor disconnects, and power frequency operation contactor closure controls motor output end connection while assigning switching command
Current sensor, start real-time monitoring escalator motor motor export electric current, from assign switching command begin to pass through it is default
Handoff procedure duration after, assert that switching is over, obtain multiple motors output that escalator is exchanged work in frequency handoff procedure
Current values determine that maximum value is electromechanical shock electric current in above-mentioned multiple motor output current values.
Wherein, handoff angle difference threshold value is a preset value.
Preferably, handoff angle difference threshold value is set as 1 degree, and predeterminated frequency is set as 50.5HZ.
Wherein, handoff procedure duration is a preset time, the timing since when assigning switching command, and process is preset
After handoff procedure duration, assert that the frequency switching of exchanging work of escalator has been completed.
Preferably, the value range of switching time is at 100 milliseconds~300 milliseconds.
When the frequency of exchanging work of escalator switches, it is automatic that switching compensation angle is added participation with the output voltage phase of frequency converter
Can staircase carry out exchanging work in the switching condition of switching frequently, therefore the size for switching compensation angle can influence the change of escalator work
The size of electromechanical shock electric current in frequency handoff procedure.
In a specific embodiment, according to comparison result, determine that adjustment currently adjusts corresponding switching compensation angle
Adjustment mode, being adjusted the step of corresponding switching compensates angle next time includes:
When electromechanical shock electric current is greater than according to the preceding electromechanical shock electric current for once adjusting corresponding switching compensation angle acquisition,
Corresponding switching compensation angle is currently adjusted using the adjustment mode opposite with preceding primary adjustment, adjustment；
Or
When electromechanical shock electric current is less than according to the preceding electromechanical shock electric current for once adjusting corresponding switching compensation angle acquisition,
Using with it is preceding once adjust identical ground adjustment mode, adjustment currently adjusts corresponding switching and compensates angle.
Specifically, being greater than in electromechanical shock electric current according to the preceding motor punching for once adjusting corresponding switching compensation angle and obtaining
It is current to adjust if the preceding adjustment mode for once adjusting corresponding switching compensation angle adjusts the angle to increase to preset when hitting electric current
The adjustment mode at corresponding switching compensation angle is to reduce default adjust the angle；If the preceding tune for once adjusting corresponding switching compensation angle
Perfect square formula is to reduce default adjustment angle, then the adjustment mode for currently adjusting corresponding switching compensation angle presets adjusting angle to increase
Degree.
When electromechanical shock electric current is less than according to the preceding electromechanical shock electric current for once adjusting corresponding switching compensation angle acquisition,
If the preceding adjustment mode for once adjusting corresponding switching compensation angle adjusts the angle to increase to preset, corresponding switching is currently adjusted
The adjustment mode for compensating angle is also to increase default adjustment angle；If the preceding adjustment mode for once adjusting corresponding switching compensation angle is
Default adjustment angle is reduced, then the adjustment mode for currently adjusting corresponding switching compensation angle is also to reduce default adjustment angle.
Electricity is obtained according to electromechanical shock electric current and the preceding electromechanical shock electric current for once adjusting corresponding switching compensation angle acquisition
The variation tendency of machine dash current takes corresponding adjustment to corresponding switching compensation angle is currently adjusted, can make electromechanical shock
Electric current faster converges in the numberical range less than electromechanical shock current threshold, further increases the adjustment at switching compensation angle
Efficiency reduces adjustment duration.
In a specific embodiment, the value range adjusted the angle is preset at 1 degree~20 degree.
In a specific embodiment, the exchange work differential seat angle threshold value of frequency switching of escalator takes 1 degree, presets frequency
Rate uses 50.5HZ.Default adjust the angle uses 3 degree.Default switching compensation angle uses 80 degree.
Specifically, one escalator exchange work with above-mentioned parameter and switch the process of compensation angle adjustment, such as Fig. 3 frequently
Shown, step can be such that
Step S310 becomes according to the first time that the relevant parameter for including default switching compensation angle (80 degree) carries out escalator
Power frequency switching, obtain escalator for the first time exchange work frequency switching electromechanical shock electric current；
Step S320 is adjusted to i.e. default switching compensation angle (80 degree) in corresponding switching compensation angle is adjusted for the first time,
Default switching compensation angle is increased into default adjustment angle (3 degree) for (80 degree), obtains second of adjustment corresponding switching compensation angle (83
Degree)；
Step S330 is helped automatically according to the relevant parameter including adjusting corresponding switching compensation angle (83 degree) for the second time
Ladder exchange work for the second time frequency switch, obtain escalator exchange work for the second time frequency switching electromechanical shock electric current；
Step S340, escalator exchange work for the second time frequency switching electromechanical shock electric current than escalator for the first time exchange work frequency
The electromechanical shock electric current of switching is big, to the adjustment mode for adjusting corresponding switching compensation angle (83 degree) for the second time and adjustment for the first time
Adjustment mode reduce default adjustment angle (3 degree) on the contrary, (83 degree) of corresponding switching compensation angle will be adjusted for the second time, obtain the
Corresponding switching compensation angle (80 degree) is adjusted three times；
Step S350 is helped automatically according to the relevant parameter for adjusting corresponding switching compensation angle (80 degree) including third time
Ladder third time exchange work frequency switch, obtain escalator third time exchange work frequency switching electromechanical shock electric current；
Step S360, escalator third time exchange work frequency switching electromechanical shock electric current exchange work for the second time than escalator frequency
The electromechanical shock electric current of switching is small, adjusts to the adjustment mode for adjusting corresponding switching compensation angle (80 degree) for the third time with second
Adjustment mode it is identical, (80 degree) of corresponding switching compensation angle will be adjusted for the third time and reduce default adjustment angle (3 degree), obtain the
Corresponding switching compensation angle (77 degree) of four adjustment；
Step S370 is helped automatically according to the relevant parameter for including corresponding switching compensation angle (77 degree) of the 4th adjustment
The 4th time of ladder is exchanged work to be switched frequently, obtains the electromechanical shock electric current of escalator the 4th time frequency switching of exchanging work；
The electromechanical shock electric current of step S380, escalator the 4th time frequency switching of exchanging work are less than electromechanical shock current threshold,
Confirm that (77 degree) of the 4th adjustment corresponding switching compensation angle compensates angle for final switching, completes frequency of exchanging work to this escalator
The adjustment at the switching compensation angle of switching.
(77 degree) of compensation angle will finally be switched to be applied in the power frequency switching of this escalator, it can be made in frequency of exchanging work
The held stationary operation of switching front and back.
The frequency switching method of exchanging work of this escalator, includes the following steps:
Obtain output voltage frequency, the voltage-phase of power frequency supply and the output voltage phase of frequency converter of frequency converter；
When the output voltage frequency of frequency converter is equal to predeterminated frequency 50.5HZ, it will finally switch compensation angle (77 degree) and become
The output voltage phase of frequency device is added, and obtains the amendment output voltage phase of frequency converter；
When the absolute value of the difference of the voltage-phase of the amendment output voltage phase and power frequency supply of frequency converter is less than commuting angle
When spending poor 1 degree of threshold value, switching command is assigned, makes to control the disconnection of converting operation contactor, power frequency operation contactor closure.
The electromechanical shock electric current in frequency handoff procedure that can keep exchanging work to escalator carries out real-time monitoring, passes through motor
The value monitoring escalator of dash current exchange work frequently, and whether the jitter conditions of switching and escalator there is exception.
In a specific embodiment, the acquisition at final switching compensation angle can also be obtained by following manner:
With 15 degree for interval, 24 switchings compensation angle for obtaining from 0 degree to 360 degree；
It is exchanged work by these compensation angles progress escalators and is switched frequently respectively, obtained corresponding 24 escalators and exchange work frequently
The electromechanical shock electric current of handoff procedure；
The smallest electromechanical shock electric current is obtained by comparing, confirms the smallest electromechanical shock electric current corresponding switching compensation angle
Finally to switch compensation angle.
It is exchanged work based on above-mentioned escalator and switches the technical solution of compensation angle method of adjustment frequently, the embodiment of the present invention also provides
A kind of escalator is exchanged work frequency switching compensation angle adjustment system, as shown in Figure 4, comprising:
Electromechanical shock electric current acquiring unit 410 is obtained for carrying out frequency switching of exchanging work to escalator according to relevant parameter
Electromechanical shock electric current of the escalator motor in frequency handoff procedure of exchanging work；Relevant parameter includes currently adjusting corresponding switching to mend
Repay angle；
Electromechanical shock electric current comparing unit 420, for comparing when electromechanical shock electric current is greater than electromechanical shock current threshold
Electromechanical shock electric current and according to it is preceding once adjust it is corresponding switching compensation angle obtain electromechanical shock electric current；
Adjustment unit 430 determines that adjustment is current and adjusts for the comparison result according to electromechanical shock electric current comparing unit 420
The adjustment mode at whole corresponding switching compensation angle, is adjusted corresponding switching compensation angle next time；Adjustment mode includes increasing
It is default to adjust the angle and reduce default adjust the angle；
Result confirmation unit 440 is adjusted, for inciting somebody to action when obtaining the electromechanical shock electric current less than electromechanical shock current threshold
It is confirmed as finally switching compensation angle in switching compensation corresponding less than the electromechanical shock electric current of electromechanical shock current threshold angle.
Escalator exchanges work frequency switching compensation angle adjustment system by exchanging work in frequency handoff procedure to a preceding escalator
Electromechanical shock electric current and this escalator exchange work the comparison of the electromechanical shock electric current in frequency handoff procedure, realize and switching mended
This adjustment for repaying angle obtains motor of the escalator in frequency handoff procedure of exchanging work in electromechanical shock electric current acquiring unit 410
Dash current；Electromechanical shock electric current comparing unit 420 compares electromechanical shock electric current and once adjusts corresponding switching benefit according to preceding
Repay the electromechanical shock electric current of angle acquisition；It is adjusted in adjustment unit 430 according to the comparison result of electromechanical shock electric current comparing unit 420
It is whole currently to adjust corresponding switching compensation angle, corresponding switching compensation angle is adjusted next time；Finally in adjustment result confirmation
Unit 440 obtains switching compensation corresponding less than the electromechanical shock electric current of electromechanical shock current threshold angle, and then has determined final
Switching compensation angle, completes the adjustment at switching compensation angle.The efficiency for obtaining final switching compensation angle is improved, when making to adjust required
Between substantially shorten
Electromechanical shock electric current acquiring unit 410 in one of the embodiments, be also used to according to relevant parameter to automatic
Staircase carries out frequency switching of exchanging work for the first time, obtains electromechanical shock electric current of the escalator in frequency handoff procedure of exchanging work for the first time
In step, angle is compensated according to default switching, frequency switching of exchanging work is carried out to escalator；
Adjustment unit 430 is also used to when electromechanical shock electric current of the escalator in frequency handoff procedure of exchanging work for the first time is big
When electromechanical shock current threshold, default adjustment angle is increased or decreased to default switching compensation angle, obtains second of adjustment pair
The switching compensation angle answered.
Each unit module it should be noted that escalator of the present invention is exchanged work in frequency switching compensation angle adjustment system, can
The corresponding each process step realizing above-mentioned escalator and exchanging work in frequency switching compensation angle method of adjustment, details are not described herein again.
In one embodiment, a kind of escalator controller is also provided, which includes memory, place
The computer program managing device and storage on a memory and can running on a processor, wherein processor is realized when executing program
It exchanges work such as any one escalator in the various embodiments described above and switches compensation angle method of adjustment frequently.
The escalator controller, when processor executes program, by realizing as any one in the various embodiments described above
Kind escalator is exchanged work switches compensation angle method of adjustment frequently, so as to pass through the electromechanical shock electric current for detecting escalator motor
Constantly adjustment switching compensation angle, the corresponding switching of electromechanical shock electric current finally obtained within the scope of electromechanical shock current threshold are mended
It repays angle and confirms as finally switching compensation angle, can effectively improve the regulated efficiency at final switching compensation angle, reduce adjustment institute
The time needed.
In addition, those of ordinary skill in the art will appreciate that realize above-described embodiment method in all or part of the process,
That relevant hardware can be instructed to complete by computer program, program can be stored in a non-volatile computer can
It reads in storage medium, in the embodiment of the present invention, which be can be stored in the storage medium of computer system, and by the meter
At least one processor in calculation machine system executes, to realize including frequency switching compensation angle adjustment of exchanging work such as above-mentioned respectively dynamic staircase
The process of the embodiment of method.
In one embodiment, a kind of storage medium is also provided, computer program is stored thereon with, wherein the program quilt
It realizes to exchange work such as any one escalator in the various embodiments described above when processor executes and switches compensation angle method of adjustment frequently.Its
In, storage medium can for magnetic disk, CD, read-only memory (Read-Only Memory, ROM) or random storage memory
Body (Random Access Memory, RAM) etc..
The computer storage medium, the computer program of storage include that above-mentioned respectively dynamic staircase such as is exchanged work by realizing
The process of the embodiment of frequency switching compensation angle method of adjustment, so as to pass through the electromechanical shock electric current of detection escalator motor
Constantly adjustment switching compensation angle, the corresponding switching of electromechanical shock electric current finally obtained within the scope of electromechanical shock current threshold are mended
It repays angle and confirms as finally switching compensation angle, can effectively improve the regulated efficiency at final switching compensation angle, reduce adjustment institute
The time needed.
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield all should be considered as described in this specification.
Only several embodiments of the present invention are expressed for above embodiments, and the description thereof is more specific and detailed, but can not
Therefore limitations on the scope of the patent of the present invention are interpreted as.It should be pointed out that for those of ordinary skill in the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
- The frequency switching compensation angle method of adjustment 1. a kind of escalator is exchanged work, which is characterized in that comprising steps ofFrequency switching of exchanging work is carried out to escalator according to relevant parameter, obtains escalator motor in the frequency handoff procedure of exchanging work In electromechanical shock electric current；The relevant parameter includes currently adjusting corresponding switching compensation angle；When the electromechanical shock electric current is greater than electromechanical shock current threshold, the electromechanical shock electric current and according to preceding primary Adjust the electromechanical shock electric current that corresponding switching compensation angle obtains；According to the comparison result, determines the adjustment adjustment mode for currently adjusting corresponding switching compensation angle, obtain next Secondary adjustment corresponding switching compensation angle；The adjustment mode includes increasing to preset to adjust the angle and reduce default adjust the angle；When obtaining the electromechanical shock electric current less than the electromechanical shock current threshold, described the electromechanical shock electric current will be less than It is confirmed as finally switching compensation angle in the electromechanical shock electric current of threshold value corresponding switching compensation angle.
- The frequency switching compensation angle method of adjustment 2. escalator according to claim 1 is exchanged work, which is characterized in that according to correlation Parameter switches the escalator frequency that exchange work for the first time, obtains the escalator and exchanges work frequency handoff procedure in the first time In electromechanical shock electric current the step of in:Angle is compensated according to default switching, and frequency switching of exchanging work is carried out to the escalator；AndThe escalator is obtained also to wrap after the step of first time exchanging work the electromechanical shock electric current in frequency handoff procedure Include step:When the escalator is greater than electromechanical shock electric current in the first time electromechanical shock electric current in frequency handoff procedure of exchanging work When threshold value, the default adjustment angle is increased or decreased to default switching compensation angle, obtains that second of adjustment is corresponding to cut Change compensation angle.
- The frequency switching compensation angle method of adjustment 3. escalator according to claim 1 is exchanged work, which is characterized in thatThe relevant parameter further includes the output voltage frequency of frequency converter, the amendment output voltage phase of frequency converter and power frequency electric The voltage-phase in source；The amendment output voltage phase of the frequency converter is the output voltage phase of frequency converter and described currently adjusts corresponding cut Change the sum of compensation angle.
- The frequency switching compensation angle method of adjustment 4. escalator according to claim 3 is exchanged work, which is characterized in that according to correlation Parameter carries out frequency switching of exchanging work to escalator, obtains electromechanical shock of the escalator in the frequency handoff procedure of exchanging work The step of electric current includes:When the electricity of the output voltage frequency of the frequency converter, amendment the output voltage phase and the power frequency supply of the frequency converter When pressure phase meets switching condition, control escalator carries out frequency switching of exchanging work；Motor output electric current of the escalator motor in the frequency handoff procedure of exchanging work is monitored, is exported according to the motor Electric current obtains the electromechanical shock electric current of the escalator in the frequency handoff procedure of exchanging work；Wherein, it is predeterminated frequency that the switching condition, which is the output voltage frequency of the frequency converter, and the amendment of the frequency converter The absolute value of the difference of the voltage-phase of output voltage phase and the power frequency supply is less than handoff angle difference threshold value.
- The frequency switching compensation angle method of adjustment 5. escalator according to claim 1 is exchanged work, which is characterized in that the basis The comparison result determines the adjustment adjustment mode for currently adjusting corresponding switching compensation angle, is adjusted next time pair Answer switching compensation angle the step of include:The electromechanical shock electricity that corresponding switching compensation angle obtains once is adjusted before the electromechanical shock electric current is greater than the basis When stream, corresponding switching is currently adjusted using the adjustment mode opposite with preceding primary adjustment, adjustment and compensates angle；OrThe electromechanical shock electricity that corresponding switching compensation angle obtains once is adjusted before the electromechanical shock electric current is less than the basis When stream, using with it is preceding once adjust identical ground adjustment mode, adjustment currently adjusts corresponding switching compensation angle.
- 6. escalator according to any one of claims 1 to 5 is exchanged work, frequency switching compensation angle method of adjustment, feature exist In the value range of the default adjustment angle is at 1 degree~20 degree.
- The frequency switching compensation angle adjustment system 7. a kind of escalator is exchanged work characterized by comprisingElectromechanical shock electric current acquiring unit, for carrying out frequency switching of exchanging work to escalator according to relevant parameter, acquisition is helped automatically Electromechanical shock electric current of the terraced motor in the frequency handoff procedure of exchanging work；The relevant parameter includes currently adjusting corresponding switching Compensate angle；Electromechanical shock electric current comparing unit, for comparing institute when the electromechanical shock electric current is greater than electromechanical shock current threshold State electromechanical shock electric current and according to the preceding electromechanical shock electric current for once adjusting corresponding switching compensation angle and obtaining；Adjustment unit determines for the comparison result according to the electromechanical shock electric current comparing unit and adjusts the current adjustment The adjustment mode at corresponding switching compensation angle is adjusted corresponding switching compensation angle next time；The adjustment mode includes increasing Add default adjustment angle and reduces default adjust the angle；Result confirmation unit is adjusted, for when obtaining the electromechanical shock electric current less than the electromechanical shock current threshold, by institute Switching compensation corresponding less than the electromechanical shock electric current of electromechanical shock current threshold angle is stated to be confirmed as finally switching compensation angle.
- The frequency switching compensation angle adjustment system 8. escalator according to claim 7 is exchanged work, which is characterized in thatThe electromechanical shock electric current acquiring unit, for according to relevant parameter to escalator carry out for the first time exchange work frequency cut It changes, the escalator is obtained in the step of first time exchanging work the electromechanical shock electric current in frequency handoff procedure, according to pre- If switching compensation angle carries out frequency switching of exchanging work to the escalator；The adjustment unit, for exchanging work the electromechanical shock electric current in frequency handoff procedure when the escalator in the first time When greater than electromechanical shock current threshold, the default adjustment angle is increased or decreased to default switching compensation angle, obtains the Secondary adjustment corresponding switching compensation angle.
- 9. a kind of escalator controller, including memory, processor and storage can be run on a memory and on a processor Computer program, which is characterized in that the processor realizes that claims 1 to 6 is described in any item when executing described program Step.
- 10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program The step of any one of claims 1 to 6 the method is realized when being executed by processor.
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