CN109921718A - 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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- CN109921718A CN109921718A CN201711321418.2A CN201711321418A CN109921718A CN 109921718 A CN109921718 A CN 109921718A CN 201711321418 A CN201711321418 A CN 201711321418A CN 109921718 A CN109921718 A CN 109921718A
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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, include: that frequency switching of exchanging work is carried out to escalator according to relevant parameter, obtains escalator in the vibration acceleration of frequency switching moment of exchanging work；Relevant parameter includes currently adjusting corresponding switching compensation angle；When the absolute value of vibration acceleration is greater than or equal to vibration acceleration threshold, compare the absolute value of vibration acceleration and according to the preceding absolute value for once adjusting the vibration acceleration that corresponding switching compensation angle obtains；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 vibration acceleration of the absolute value less than vibration acceleration threshold, finally switching is confirmed as at the vibration acceleration corresponding switching compensation angle that absolute value is less than vibration acceleration threshold and compensates 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 vibration exchanged work when switching frequently according to escalator is artificially experienced
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 promote on a large scale.
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 in the vibration of frequency switching moment of exchanging work
Dynamic acceleration；Relevant parameter includes currently adjusting corresponding switching compensation angle；
When the absolute value of vibration acceleration is greater than or equal to vibration acceleration threshold, compare the absolute value of vibration acceleration
With the absolute value according to the preceding vibration acceleration for once adjusting corresponding switching compensation angle acquisition；
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 vibration acceleration of the absolute value less than vibration acceleration threshold, absolute value is less than vibration acceleration threshold
It is confirmed as finally switching compensation angle in the vibration acceleration of value 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 vibration acceleration for frequency switching moment 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 is further comprised the steps of: after escalator is obtained the vibration acceleration for frequency switching moment of exchanging work for the first time the step of
Add when escalator is greater than or equal to vibration in the absolute value of the vibration acceleration for frequency switching moment of exchanging work for the first time
When threshold speed, default adjustment angle is increased or decreased to default switching compensation angle, the corresponding switching of second of adjustment is obtained and mends
Repay 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
Include: in the step of vibration acceleration for frequency switching moment of exchanging work
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 obtains first speed of service and escalator of the escalator before frequency of exchanging work switches and switches it in frequency of exchanging work
Second speed of service afterwards；
According to the switching time of first speed of service, second speed of service and frequency switching of exchanging work, obtains escalator and becoming
The vibration acceleration of power frequency switching moment；
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:
It is greater than in the absolute value of vibration acceleration according to the preceding vibration acceleration for once adjusting corresponding switching compensation angle and obtaining
When the absolute value of degree, corresponding switching is currently adjusted using the adjustment mode opposite with preceding primary adjustment, adjustment and compensates angle；
Or
It is less than in the absolute value of vibration acceleration according to the preceding vibration acceleration for once adjusting corresponding switching compensation angle and obtaining
When the absolute value of degree, using with it is preceding once adjust identical ground adjustment mode, adjustment currently adjusts corresponding switching compensation 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:
Vibration acceleration acquiring unit obtains automatic for carrying out frequency switching of exchanging work to escalator according to relevant parameter
Staircase is in the vibration acceleration of frequency switching moment of exchanging work；Relevant parameter includes currently adjusting corresponding switching compensation angle；
Vibration acceleration comparing unit is greater than or equal to vibration acceleration threshold for the absolute value in vibration acceleration
When, compare the absolute value of vibration acceleration and according to the exhausted of the preceding vibration acceleration for once adjusting corresponding switching compensation angle acquisition
To value；
It is corresponding to determine that adjustment currently adjusts for the comparison result according to vibration acceleration comparing unit for adjustment unit
The adjustment mode at switching compensation angle is adjusted corresponding switching compensation angle next time；Adjustment mode includes increasing default adjustment
Angle and the default adjustment angle of reduction；
Result confirmation unit is adjusted, it, will be absolute when obtaining vibration acceleration of the absolute value less than vibration acceleration threshold
It is confirmed as finally switching compensation angle in the vibration acceleration corresponding switching compensation angle that value is less than vibration acceleration threshold.
Vibration acceleration acquiring unit in one of the embodiments, for according to relevant parameter to escalator into
Row frequency of exchanging work for the first time switches, obtain escalator the vibration acceleration for frequency switching moment of exchanging work for the first time the step of in, root
Frequency switching of exchanging work is carried out to escalator according to default switching compensation angle；
Adjustment unit, for being greater than when escalator in the absolute value of the vibration acceleration for frequency switching moment of exchanging work for the first time
Or when being equal to vibration acceleration threshold, default adjustment angle is increased or decreased to default switching compensation angle, obtains second of adjustment
Corresponding switching compensates 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 the vibration of frequency switching moment of exchanging work
Dynamic acceleration, according to the absolute value of vibration acceleration and according to the preceding vibration acceleration for once adjusting corresponding switching compensation angle and obtaining
The comparison result of the absolute value of degree is determined to the adjustment mode for currently adjusting corresponding switching compensation angle, to obtain next time
Corresponding switching compensation angle is adjusted, absolute value switching corresponding less than the vibration acceleration of vibration acceleration threshold is finally obtained and mends
Repay angle.Based on the present invention, switching compensation angle is adjusted by vibration acceleration, obtains absolute value within the scope of vibration acceleration threshold
Vibration acceleration corresponding switching compensation angle and confirm as finally switching compensation angle, can effectively improve final switching compensation
The regulated efficiency at angle, 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 diagram frequently；
Fig. 2 is the flow diagram for obtaining vibration of the escalator in frequency switching moment of exchanging work in an embodiment and accelerating；
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 and cuts in frequency of exchanging work
Change the vibration acceleration at moment；Relevant parameter includes currently adjusting corresponding switching compensation angle；
Specifically, the speed of service that vibration acceleration of the escalator in frequency switching moment of exchanging work is escalator is becoming
The variable quantity of power frequency switching moment can embody speed of service variation of the escalator before and after frequency of exchanging work switches, to embody
Vibration Condition of the escalator when frequency of exchanging work switches.It all include each time once helping automatically to the adjustment process at switching compensation angle
The frequency of exchanging work of ladder switches, and frequency switching all corresponding switching compensation angles of exchanging work each time, according to front and back, escalator is exchanged work twice
The variation of the vibration acceleration value of frequency switching moment can adjust corresponding switching compensation angle accordingly.
Step S120 compares vibration and accelerates when the absolute value of vibration acceleration is greater than or equal to vibration acceleration threshold
The absolute value of degree and according to it is preceding once adjust it is corresponding switching compensation angle obtain vibration acceleration absolute value；
Specifically, vibration acceleration threshold is a preset value, for judging escalator in frequency switching moment of exchanging work
Vibration whether within the allowable range.For example, vibration acceleration threshold is 30gal, indicate that vibration acceleration is being greater than -30gal
And be less than 30gal in the range of be the value within the scope of vibration acceleration threshold.When the absolute value of vibration acceleration is greater than or waits
When vibration acceleration threshold, illustrate to be added according to the vibration for including the relevant parameter acquisition for currently adjusting corresponding switching compensation angle
Velocity amplitude is excessive, needs to be adjusted to currently adjusting corresponding switching compensation angle.
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, once adjusting what corresponding switching compensation angle obtained according to the absolute value of vibration acceleration and according to preceding
The comparison result of the absolute value of vibration acceleration, determination compensate corresponding switching is currently adjusted the corresponding adjustment mode at angle,
Corresponding switching compensation angle is currently adjusted according to adjustment mode adjustment, is adjusted corresponding switching compensation angle next time.
Absolute value is less than vibration when obtaining vibration acceleration of the absolute value less than vibration acceleration threshold by step S140
It is confirmed as finally switching compensation angle in the vibration acceleration of dynamic acceleration rate threshold corresponding switching compensation angle.
Specifically, illustrating that escalator exists when obtaining vibration acceleration of the absolute value less than vibration acceleration threshold
Exchange work frequency switching moment vibration within the allowable range, absolute value is less than to the vibration acceleration pair of vibration acceleration threshold
The switching answered compensates angle and 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 frequency switching compensation angle method of adjustment embodiment, by absolute value to vibration acceleration and according to
The comparison of the preceding absolute value for once adjusting the vibration acceleration that corresponding switching compensation angle obtains, according to comparison result, to current
It adjusts corresponding switching compensation angle to be adjusted correspondingly, rapidly converges to the absolute value of vibration acceleration and be less than vibration acceleration
It spends in the numberical range of threshold value, when obtaining vibration acceleration of the absolute value less than vibration acceleration threshold, it is confirmed that absolute value
Switching compensation corresponding less than the vibration acceleration of vibration acceleration threshold angle is the method for adjustment final switching finally to be obtained
Compensate angle.Finally the acquisition at switching compensation angle does not depend on manual operation and judgement in this method, reduces human cost, compares people
It can faster obtain switching compensation angle finally for debugging, the effective regulated efficiency for improving final switching compensation angle is reduced and adjusted
The whole required time.
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 vibration acceleration for frequency switching moment 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 vibration acceleration for frequency switching moment of exchanging work for the first time
Add when escalator is greater than or equal to vibration in the absolute value of the vibration acceleration for frequency switching moment of exchanging work for the first time
When threshold speed, default adjustment angle is increased or decreased to default switching compensation angle, the corresponding switching of second of adjustment is obtained and mends
Repay 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, the first time that will do it escalator during carrying out first time adjustment exchanges work to be switched frequently.Escalator carries out first
Secondary frequency switching of exchanging work is switched over according to including the relevant parameter at default switching compensation angle.Default switching compensation angle is the
Once adjust corresponding switching compensation angle.
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, it is obtained from
Dynamic staircase is in the vibration acceleration of frequency switching moment of exchanging work for the first time, when the vibration acceleration for frequency switching moment of exchanging work for the first time
When absolute value is greater than or equal to vibration acceleration threshold, default adjustment angle is increased or decreased to default switching compensation angle.It will adjust
Default switching compensation angle after whole as adjusting corresponding switching compensation angle for the second time, for obtain adjust for the second time it is corresponding certainly
Dynamic staircase is exchanged work the vibration acceleration of frequency switching moment for the second time.When the exchange work for the second time vibration of frequency switching moment of escalator adds
When the absolute value of speed is more than or equal to vibration acceleration threshold, adjusting corresponding first time more for the first time exchanges work frequency switching moment
Vibration acceleration absolute value and adjust for the second time corresponding frequency switching moment of exchanging work for the second time vibration acceleration it is absolute
Value, adjusted for the second time according to comparison result it is corresponding switching compensation angle adjustment, by adjusting number it is cumulative it is final must
To so that the final switching that the absolute value of vibration acceleration is less than vibration acceleration 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 one of the embodiments, before escalator exchanges work frequency switching, escalator is become by inverter supply
The output voltage frequency of frequency device is also equal to the frequency of escalator motor operation, is connect by control with escalator motor
Encoder collects.
In one of the embodiments, 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
It include: control encoder acquisition displacement motor information, motor side galvanometer acquisition motor output electric current；According to displacement motor information
Obtain electromechanics speed；Electric current, which is exported, according to motor obtains motor slip angle；According to electromechanics speed and motor slip angle
Obtain the electrical speed of motor；It integrates to obtain motor output voltage phase further according to the electrical speed of motor, to obtain frequency conversion
The output voltage phase of device.
The acquisition process of the voltage-phase of power frequency supply includes: to be detected by analog/digital conversion in one of the embodiments,
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,
Escalator, which is obtained, in the step of vibration acceleration for frequency switching moment of exchanging work includes:
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 obtains first speed of service and escalator of the escalator before frequency of exchanging work switches and is exchanging work
Second speed of service after frequency switching；
Step S230 is obtained automatic according to the switching time of first speed of service, second speed of service and frequency switching of exchanging work
Staircase is in the vibration acceleration of frequency switching moment 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, control connects with escalator motor
First displacement information of the encoder acquisition escalator motor connect, obtains escalator motor to the first displacement information differential
Switch front motor speed, the of escalator is obtained according to the switching front motor speed of motor and current escalator transmission ratio
One speed of service, assigns switching command later, and control converting operation contactor disconnects, power frequency operation contactor closure, from assigning
After switching command begins to pass through preset switching time, assert that switching is over, control the volume connecting with escalator motor
The second displacement information of code device acquisition escalator motor, after obtaining the switching of escalator motor to second displacement information differential
Motor speed obtains second speed of service of escalator according to motor speed after switching and current escalator transmission ratio.
According to first speed of service, second speed of service and exchange work frequency switching switching time, by second speed of service with
The difference of first speed of service obtains escalator in the vibration acceleration of frequency switching moment of exchanging work divided by switching time.
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, switching time is a preset value, starts timing when assigning switching command, by preset switching time
Afterwards, assert that the frequency switching of exchanging work of escalator has been completed.
Preferably, the value range of switching time is at 100 milliseconds~200 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 the judgement switched frequently of exchanging work, therefore the size for switching compensation angle can influence escalator work frequency conversion switching
The size of the vibration acceleration at moment.
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:
It is greater than in the absolute value of vibration acceleration according to the preceding vibration acceleration for once adjusting corresponding switching compensation angle and obtaining
When the absolute value of degree, corresponding switching is currently adjusted using the adjustment mode opposite with preceding primary adjustment, adjustment and compensates angle；
Or
It is less than in the absolute value of vibration acceleration according to the preceding vibration acceleration for once adjusting corresponding switching compensation angle and obtaining
When the absolute value of degree, using with it is preceding once adjust identical ground adjustment mode, adjustment currently adjusts corresponding switching compensation angle.
Specifically, the absolute value in vibration acceleration once adjusts what corresponding switching compensation angle obtained greater than according to preceding
When the absolute value of vibration acceleration, if the preceding adjustment mode for once adjusting corresponding switching compensation angle presets adjusting angle to increase
Degree adjusts the adjustment mode at corresponding switching compensation angle currently then to reduce default adjust the angle；If it is preceding once adjust it is corresponding
The adjustment mode at switching compensation angle is to reduce to preset to adjust the angle, then the adjustment mode for currently adjusting corresponding switching compensation angle is
Increase default adjust the angle.
It is less than in the absolute value of vibration acceleration according to the preceding vibration acceleration for once adjusting corresponding switching compensation angle and obtaining
When the absolute value of degree, if the preceding adjustment mode for once adjusting corresponding switching compensation angle adjusts the angle to increase to preset, currently
The adjustment mode for adjusting corresponding switching compensation angle is also to increase default adjustment angle；If preceding once adjust corresponding switching compensation
The adjustment mode at angle is also to reduce default adjustment angle, then the adjustment mode for currently adjusting corresponding switching compensation angle is pre- to reduce
If adjusting the angle.
It is obtained according to the absolute value of vibration acceleration and the preceding vibration acceleration for once adjusting corresponding switching compensation angle acquisition
To the variation tendency of the absolute value of vibration acceleration, corresponding adjustment is taken to corresponding switching compensation angle is currently adjusted, it can
It converges to the absolute value of vibration acceleration faster in the numberical range less than vibration acceleration threshold, further increases and cut
The regulated efficiency at compensation angle is changed, adjustment duration is reduced.
In a specific embodiment, the value range adjusted the angle is preset at 1 degree~10 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 5 degree.Default switching compensation angle uses 30 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 (30 degree) carries out escalator
Power frequency switching, obtain escalator for the first time exchange work frequency switching vibration acceleration；
Step S320 is adjusted to i.e. default switching compensation angle (30 degree) in corresponding switching compensation angle is adjusted for the first time,
Default switching compensation angle (30 degree) is subtracted into default adjustment angle (5 degree), obtains second of adjustment corresponding switching compensation angle (25
Degree)；
Step S330 is helped automatically according to the relevant parameter including adjusting corresponding switching compensation angle (25 degree) for the second time
Ladder exchange work for the second time frequency switch, obtain escalator exchange work for the second time frequency switching vibration acceleration；
Step S340, escalator exchange work for the second time frequency switching vibration acceleration absolute value than escalator for the first time
Exchange work frequency switching vibration acceleration absolute value it is big, to adjust for the second time it is corresponding switching compensation angle (25 degree) adjustment mode
With the adjustment mode of first time adjustment on the contrary, will adjust (25 degree) of corresponding switching compensation angle for the second time increases default adjust the angle
(5 degree) obtain third time and adjust corresponding switching compensation angle (30 degree)；
Step S350 is helped automatically according to the relevant parameter for adjusting corresponding switching compensation angle (30 degree) including third time
Ladder third time exchange work frequency switch, obtain escalator third time exchange work frequency switching vibration acceleration；
Step S360, escalator third time exchange work frequency switching vibration acceleration absolute value than escalator second
Exchange work frequency switching vibration acceleration absolute value it is small, to adjust for the third time it is corresponding switching compensation angle (30 degree) adjustment mode
It is identical as the adjustment mode of second of adjustment, (30 degree) of corresponding switching compensation angle will be adjusted for the third time increases default adjust the angle
(5 degree) obtain corresponding switching compensation angle (35 degree) of the 4th adjustment；
Step S370 is helped automatically according to the relevant parameter for including corresponding switching compensation angle (35 degree) of the 4th adjustment
The 4th time of ladder is exchanged work to be switched frequently, obtains the vibration acceleration of escalator the 4th time frequency switching of exchanging work；
The absolute value of step S380, the vibration acceleration of escalator the 4th time frequency switching of exchanging work are less than vibration acceleration threshold
Value confirms that (35 degree) of the 4th adjustment corresponding switching compensation angle compensates angle for final switching, completes to become this escalator
The adjustment at the switching compensation angle of power frequency switching.
(35 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 (35 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.
In a specific embodiment, the exchange work vibration acceleration of frequency switching moment of escalator is supervised in real time
It surveys, monitors that escalator exchange work the Vibration Condition of frequency switching and whether escalator goes out by the value of vibration acceleration
It is now abnormal.
In a specific embodiment, the acquisition at final switching compensation angle can also be obtained by following manner:
With 5 degree for interval, 72 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 72 escalators and exchange work frequently
The vibration acceleration of switching moment；
Compare the absolute value for obtaining the smallest vibration acceleration, the smallest vibration acceleration of the absolute value of confirmation is corresponding to be cut
Changing compensation angle is that final switching compensates 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:
Vibration acceleration acquiring unit 410 is obtained from for carrying out frequency switching of exchanging work to escalator according to relevant parameter
Staircase is moved in the vibration acceleration of frequency switching moment of exchanging work；Relevant parameter includes currently adjusting corresponding switching compensation angle；
Vibration acceleration comparing unit 420 is greater than or equal to vibration acceleration threshold for the absolute value in vibration acceleration
When value, compare the absolute value of vibration acceleration and according to the preceding vibration acceleration for once adjusting corresponding switching compensation angle acquisition
Absolute value；
Adjustment unit 430 determines the current adjustment of adjustment for the comparison result according to vibration acceleration comparing unit 420
The adjustment mode at corresponding switching compensation angle is adjusted corresponding switching compensation angle next time；Adjustment mode includes increasing in advance
If adjusting the angle and reducing default adjust the angle；
Result confirmation unit 440 is adjusted, it, will be exhausted when obtaining vibration acceleration of the absolute value less than vibration acceleration threshold
The vibration acceleration corresponding switching compensation angle that value is less than vibration acceleration threshold is confirmed as finally switching compensation angle.
Escalator exchanges work frequency switching compensation angle adjustment system by exchanging work frequency switching moment to a preceding escalator
The absolute value of vibration acceleration and this escalator exchange work frequency switching moment vibration acceleration absolute value comparison, realize
Adjustment to switching compensation angle obtains escalator in the vibration of frequency switching moment of exchanging work in vibration acceleration acquiring unit 410
Acceleration；Vibration acceleration comparing unit 420 compares the absolute value of vibration acceleration and once adjusts corresponding switching according to preceding
Compensate the absolute value for the vibration acceleration that angle obtains；In adjustment unit 430, according to the comparison of vibration acceleration comparing unit 420
As a result, adjustment currently adjusts corresponding switching compensation angle, corresponding switching compensation angle is adjusted next time；Finally tied in adjustment
Fruit confirmation unit 440 obtains absolute value switching compensation corresponding less than the vibration acceleration of vibration acceleration threshold angle, and then really
Determine final switching compensation angle, completes the adjustment at switching compensation angle.The efficiency for obtaining final switching compensation angle is improved, makes to adjust
The required time substantially shortens
Vibration acceleration acquiring unit 410 in one of the embodiments, be also used to according to relevant parameter to helping automatically
The ladder frequency that exchange work for the first time switches, and obtains escalator the vibration acceleration for frequency switching moment of exchanging work for the first time the step of
In, angle is compensated according to default switching, frequency switching of exchanging work is carried out to escalator；
Adjustment unit 430, be also used to when escalator frequency switching moment of exchanging work for the first time vibration acceleration it is absolute
When value is greater than or equal to vibration acceleration threshold, default adjustment angle is increased or decreased to default switching compensation angle, obtains second
Secondary adjustment corresponding switching compensation angle.
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 of escalator is exchanged work frequency switching compensation angle method of adjustment, is compensated so as to constantly adjust switching by detection vibration acceleration
Angle finally obtains the corresponding switching compensation angle of vibration acceleration of the absolute value within the scope of vibration acceleration threshold and confirms as
Final switching compensation angle, can effectively improve the regulated efficiency at final switching compensation angle, the time needed for reducing adjustment.
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 constantly adjust switching compensation by detection vibration acceleration
Angle finally obtains the corresponding switching compensation angle of vibration acceleration of the absolute value within the scope of vibration acceleration threshold and confirms as
Final switching compensation angle, can effectively improve the regulated efficiency at final switching compensation angle, the time needed for reducing adjustment.
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, the escalator is obtained and exchanges work frequency switching moment described Vibration acceleration；The relevant parameter includes currently adjusting corresponding switching compensation angle；The vibration acceleration absolute value be greater than or equal to vibration acceleration threshold when, the vibration acceleration it is exhausted To value and according to the preceding absolute value for once adjusting the vibration acceleration 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 vibration acceleration of the absolute value less than the vibration acceleration threshold, the absolute value is less than the vibration It is confirmed as finally switching compensation angle in the vibration acceleration of acceleration rate threshold 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 carries out frequency switching of exchanging work for the first time to escalator, obtains the escalator and exchanges work frequency switching moment in the first time Vibration acceleration the step of in:Angle is compensated according to default switching, and frequency switching of exchanging work is carried out to the escalator；AndObtain the escalator the first time exchange work frequency switching moment vibration acceleration the step of after further include step It is rapid:When the escalator the first time exchange work frequency switching moment vibration acceleration absolute value be greater than or equal to vibration When dynamic acceleration rate threshold, the default adjustment angle is increased or decreased to the default switching compensation angle, obtains second of adjustment Corresponding switching compensates 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 the escalator in the vibration acceleration of the frequency switching moment of exchanging work The step of include: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；First speed of service and the escalator of the escalator before the frequency of exchanging work switches are obtained described Second speed of service exchanged work after switching frequently；According to the switching time of first speed of service, second speed of service and the frequency switching of exchanging work, obtain described Vibration acceleration of the escalator in the frequency switching moment 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 vibration that corresponding switching compensation angle obtains once is adjusted before the absolute value of the vibration acceleration is greater than the basis When the absolute value of acceleration, corresponding switching is currently adjusted using the adjustment mode opposite with preceding primary adjustment, adjustment and compensates angle；OrThe vibration that corresponding switching compensation angle obtains once is adjusted before the absolute value of the vibration acceleration is less than the basis When the absolute value of acceleration, 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~10 degree.
- The frequency switching compensation angle adjustment system 7. a kind of escalator is exchanged work characterized by comprisingVibration acceleration acquiring unit obtains described automatic for carrying out frequency switching of exchanging work to escalator according to relevant parameter Vibration acceleration of the staircase in the frequency switching moment of exchanging work；The relevant parameter includes currently adjusting corresponding switching compensation Angle；Vibration acceleration comparing unit is greater than or equal to vibration acceleration threshold for the absolute value in the vibration acceleration When, the absolute value of the vibration acceleration and according to it is preceding once adjust it is corresponding switching compensation angle obtain vibration acceleration Absolute value；Adjustment unit determines the adjustment current adjustment pair for the comparison result according to the vibration acceleration comparing unit The adjustment mode at the switching compensation angle answered is adjusted corresponding switching compensation angle next time；The adjustment mode includes increasing It is default to adjust the angle and reduce default adjust the angle；Result confirmation unit is adjusted, for inciting somebody to action when obtaining vibration acceleration of the absolute value less than the vibration acceleration threshold The vibration acceleration corresponding switching compensation angle that the absolute value is less than the vibration acceleration threshold, which is confirmed as finally switching, mends Repay angle.
- The frequency switching compensation angle adjustment system 8. escalator according to claim 7 is exchanged work, which is characterized in thatThe vibration acceleration acquiring unit, for carrying out frequency switching of exchanging work for the first time to escalator according to relevant parameter, Obtain the escalator the first time exchange work frequency switching moment vibration acceleration the step of in, according to default switching mend It repays angle and frequency switching of exchanging work is carried out to the escalator；The adjustment unit, for when the escalator the first time exchange work frequency switching moment vibration acceleration it is exhausted When being greater than or equal to vibration acceleration threshold to value, the default adjusting angle is increased or decreased to the default switching compensation angle Degree obtains second of 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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