CN108054927A - A kind of automatic seeking frequency method for intermediate frequency power supply - Google Patents
A kind of automatic seeking frequency method for intermediate frequency power supply Download PDFInfo
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- CN108054927A CN108054927A CN201711420469.0A CN201711420469A CN108054927A CN 108054927 A CN108054927 A CN 108054927A CN 201711420469 A CN201711420469 A CN 201711420469A CN 108054927 A CN108054927 A CN 108054927A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0038—Circuits or arrangements for suppressing, e.g. by masking incorrect turn-on or turn-off signals, e.g. due to current spikes in current mode control
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0048—Circuits or arrangements for reducing losses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The embodiment of the invention discloses a kind of automatic seeking frequency method for intermediate frequency power supply, including：According to the running frequency of default frequency adjustable strategies adjust automatically target intermediate frequency power supply；The output current value of real-time sampling target intermediate frequency power supply；Obtain the maximum current value in output current value；Lock the optimized operation frequency that the corresponding running frequency of maximum current value is target intermediate frequency power supply.The variation of real-time tracking electric current during automatic seeking frequency so as to calculate the optimum operation frequency of intermediate frequency power supply, can search out the resonant frequency of intermediate frequency power supply, control intermediate frequency power supply is run with the optimized operation frequency, so that its operational efficiency is maximum exactly.
Description
Technical field
The present invention relates to technical field of automatic control, more particularly to a kind of automatic seeking frequency side for intermediate frequency power supply
Method.
Background technology
It is given birth in Metal Melting, heat preservation, sintering, welding, quenching, tempering, diathermanous, molten metal elite, heat treatment and crystal
Intermediate frequency power supply can be used in a variety of applications such as long.
Intermediate frequency power supply is a kind of static frequency-conversion device, and three phase worker power is transformed into single phase poaer supply.Its operation principle
For using three-phase full-bridge controlled rectifier by AC rectification into direct current, after the flat ripple of reactor, become DC power supply, then
Through half-bridge converter, by DC inverter into the single-phase mid-frequency electric current of certain frequency (generally 1000 to 8000Hz).Work as intermediate frequency
The load of power supply for inductance and capacitance in parallel or series when, there are resonant frequency, when running frequency is near resonant frequency,
Capacitive and perceptual basic neutralisation, are mainly shown as resistance characteristic, efficiency is maximum at this time.
Therefore, the operation of intermediate frequency power supply how is controlled, efficiency is maximum when making its operation, is that those skilled in the art need at present
Technical problems to be solved.
The content of the invention
The object of the present invention is to provide a kind of automatic seeking frequency method for intermediate frequency power supply, the fortune of intermediate frequency power supply can be controlled
Row, efficiency is maximum when making its operation.
In order to solve the above technical problems, the present invention provides following technical solutions：
A kind of automatic seeking frequency method for intermediate frequency power supply, including：
According to the running frequency of default frequency adjustable strategies adjust automatically target intermediate frequency power supply；
The output current value of target intermediate frequency power supply described in real-time sampling；
Obtain the maximum current value in the output current value；
Lock the optimized operation frequency that the corresponding running frequency of the maximum current value is the target intermediate frequency power supply.
Preferably, the running frequency according to default frequency adjustable strategies adjust automatically target intermediate frequency power supply, including：
Preset the upper limit value and lower limiting value of the running frequency of the target intermediate frequency power supply；
Determine the self-regulation mode of the running frequency of the target intermediate frequency power supply, and it is true according to the self-regulation mode
Determine the adjustment starting point of running frequency；
According to the self-regulation mode, the fortune of target intermediate frequency power supply described in adjust automatically by the adjustment starting point
Line frequency.
Preferably, it is described determine the target intermediate frequency power supply running frequency self-regulation mode, and according to it is described from
Dynamic adjustment modes determine the adjustment starting point of running frequency, including：
The self-regulation mode for determining the running frequency of the target intermediate frequency power supply is frequency increments pattern；
Determine the lower limiting value of the running frequency of the target intermediate frequency power supply for adjustment starting point.
Preferably, the output current value of target intermediate frequency power supply described in the real-time sampling, including：
The target intermediate frequency power supply of current operation frequency is interrupted by default timer；
The virtual value of the output current of the target intermediate frequency power supply several times is gathered in real time；
Calculate the average value of the virtual value of the output current of the target intermediate frequency power supply under current operation frequency.
Preferably, the maximum current value obtained in the output current value, including：
Judge the virtual value of the output current of the target intermediate frequency power supply under the current operation frequency average value whether
More than the current value of default backup；
If so, the current value of the backup is updated to the defeated of the target intermediate frequency power supply under the current operation frequency
Go out the average value of the virtual value of electric current, and record current operation frequency；
The current operation frequency is increased into default delta value and carries out current operation frequency update, and is back to step
Suddenly：The target intermediate frequency power supply of current operation frequency is interrupted by default timer；
If it is not, then judging whether the current operation frequency reaches the upper limit value；
If the current operation frequency reaches the upper limit value, it is determined that the current value of the backup is the maximum current
Value；
If the current operation frequency is not up to the upper limit value, step is gone to：The current operation frequency is increased
Default delta value carries out current operation frequency update.
Preferably, it is described determine the target intermediate frequency power supply running frequency self-regulation mode, and according to it is described from
Dynamic adjustment modes determine the adjustment starting point of running frequency, including：
The self-regulation mode for determining the running frequency of the target intermediate frequency power supply is frequency decline mode；
Determine the upper limit value of the running frequency of the target intermediate frequency power supply for adjustment starting point.
Preferably, the output current value of target intermediate frequency power supply described in the real-time sampling, including：
The target intermediate frequency power supply of current operation frequency is interrupted by default timer；
The virtual value of the output current of the target intermediate frequency power supply several times is gathered in real time；
Calculate the average value of the virtual value of the output current of the target intermediate frequency power supply under current operation frequency.
Preferably, the maximum current value obtained in the output current value, including：
Judge the virtual value of the output current of the target intermediate frequency power supply under the current operation frequency average value whether
More than the current value of default backup；
If so, the current value of the backup is updated to the defeated of the target intermediate frequency power supply under the current operation frequency
Go out the average value of the virtual value of electric current, and record current operation frequency；
The current operation frequency is reduced into default delta value and carries out current operation frequency update, and is back to step
Suddenly：The target intermediate frequency power supply of current operation frequency is interrupted by default timer；
If it is not, then judging whether the current operation frequency reaches the lower limiting value；
If the current operation frequency reaches the lower limiting value, it is determined that the current value of the backup is the maximum current
Value；
If the current operation frequency is not up to the lower limiting value, step is gone to：The current operation frequency is reduced
Default delta value carries out current operation frequency update.
Preferably, it is described that the target intermediate frequency power supply of current operation frequency is interrupted by default timer, be：
The target intermediate frequency power supply of current operation frequency is interrupted by the timer that the cycle is 20 μ s.
Preferably, it is described that the target intermediate frequency power supply of current operation frequency is interrupted by default timer, be：
The target intermediate frequency power supply of current operation frequency is interrupted by the timer that the cycle is 20 μ s.
Compared with prior art, above-mentioned technical proposal has the following advantages：
A kind of automatic seeking frequency method for intermediate frequency power supply that the embodiment of the present invention is provided, including：According to default frequency
The running frequency of rate adjustable strategies adjust automatically target intermediate frequency power supply；The output current value of real-time sampling target intermediate frequency power supply；It obtains
Take the maximum current value in output current value；Lock the optimal fortune that the corresponding running frequency of maximum current value is target intermediate frequency power supply
Line frequency.The variation of real-time tracking electric current during automatic seeking frequency, can so as to calculate the optimum operation frequency of intermediate frequency power supply
The resonant frequency of intermediate frequency power supply is searched out exactly, and control intermediate frequency power supply is run with the optimized operation frequency, so that it runs
Efficiency is maximum.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the automatic seeking frequency method flow chart provided in an embodiment of the present invention for intermediate frequency power supply；
Fig. 2 is the running frequency of intermediate frequency power supply provided in an embodiment of the present invention and the relation schematic diagram of output current；
Fig. 3 is the automatic seeking frequency method flow chart for intermediate frequency power supply that another embodiment of the present invention provides；
Fig. 4 is the automatic seeking frequency method flow chart for intermediate frequency power supply that further embodiment of this invention provides.
Specific embodiment
The core of the present invention is to provide a kind of automatic seeking frequency method for intermediate frequency power supply, can control the fortune of intermediate frequency power supply
Row, efficiency is maximum when making its operation.
It is understandable in order to which the above objects, features and advantages of the present invention is enable to become apparent, below in conjunction with the accompanying drawings to this hair
Bright specific embodiment is described in detail.
Detail is elaborated in the following description in order to fully understand the present invention.But the present invention can with it is a variety of not
The other manner of this description is same as to implement, those skilled in the art can do similar without violating the connotation of the present invention
It promotes.Therefore the limitation of the invention from following public specific embodiment.
It please refers to Fig.1 and Fig. 2, Fig. 1 is the automatic seeking frequency method flow provided in an embodiment of the present invention for intermediate frequency power supply
Figure；Fig. 2 is the running frequency of intermediate frequency power supply provided in an embodiment of the present invention and the relation schematic diagram of output current.
The embodiment provides a kind of automatic seeking frequency method for intermediate frequency power supply, including：
S11：According to the running frequency of default frequency adjustable strategies adjust automatically target intermediate frequency power supply.
In the present embodiment, according to the running frequency of default frequency adjustable strategies adjust automatically target intermediate frequency power supply,
Including：Preset the upper limit value and lower limiting value of the running frequency of target intermediate frequency power supply；Determine the operation frequency of target intermediate frequency power supply
The self-regulation mode of rate, and determine according to self-regulation mode the adjustment starting point of running frequency；According to self-regulation mode,
The running frequency of adjust automatically target intermediate frequency power supply by adjustment starting point.
S12：The output current value of real-time sampling target intermediate frequency power supply；
S13：Obtain the maximum current value in output current value；
S14：Lock the optimized operation frequency that the corresponding running frequency of maximum current value is target intermediate frequency power supply.
In the present embodiment, the relation between the running frequency and output current of intermediate frequency power supply is as shown in Fig. 2, running frequency
When f is gradually incremented by, output current I is gradually reduced after progressively increasing to peak value.When output current reaches peak value, the output current value
Corresponding running frequency is the resonant frequency of intermediate frequency power supply, that is, optimal frequency.The present embodiment is according to above-mentioned operation frequency
The relation of rate and output current acquires the optimized operation frequency of intermediate frequency power supply indirectly by implementing the size of sampled output current
Rate.
In the present embodiment, a frequency adjustable strategies are pre-set, and according to the frequency adjustable strategies come adjust automatically
The running frequency of intermediate frequency power supply, so as to gather the corresponding output current value of each running frequency.So-called self-regulation mode
The setting frequency direction of automatic seeking frequency and frequency variable increment are generally referred in the present embodiment；Upper limit value and lower limiting value
It sets, sets the frequency range of automatic seeking frequency.Automatic seeking frequency can be realized according to above-mentioned automatic seeking frequency parameter, automatic seeking frequency is tied
Beam can search out resonant frequency, the i.e. optimal operation frequency of intermediate frequency power supply according to the relation curve of running frequency and output current
Rate.
Real-time tracking and record running frequency and corresponding output current value, can find exactly during automatic seeking frequency
To the resonant frequency of intermediate frequency power supply, so as to draw the optimum operation frequency of intermediate frequency power supply, control intermediate frequency power supply is with the optimized operation
Frequency is run, so that its operational efficiency is maximum.
It please refers to Fig.3, Fig. 3 is the automatic seeking frequency method flow for intermediate frequency power supply that another embodiment of the present invention provides
Figure.
In the present embodiment, as shown in figure 3, including for the automatic seeking frequency method of intermediate frequency power supply：
S31：Preset the upper limit value and lower limiting value of the running frequency of target intermediate frequency power supply.
It determines the self-regulation mode of the running frequency of target intermediate frequency power supply, and operation frequency is determined according to self-regulation mode
The adjustment starting point of rate.According to self-regulation mode, the operation frequency of adjust automatically target intermediate frequency power supply by adjustment starting point
Rate.
Wherein it is determined that the self-regulation mode of the running frequency of target intermediate frequency power supply, and determined according to self-regulation mode
The adjustment starting point of running frequency, including：
S32：The self-regulation mode for determining the running frequency of target intermediate frequency power supply is frequency increments pattern.
S33：Determine the lower limiting value of the running frequency of target intermediate frequency power supply for adjustment starting point.
Further, the output current value of real-time sampling target intermediate frequency power supply：
S34：The target intermediate frequency power supply of current operation frequency is interrupted by default timer.
S35：The virtual value of the output current of target intermediate frequency power supply several times is gathered in real time.
S36：The average value of the virtual value of the output current of target intermediate frequency power supply under current operation frequency is calculated, will be gathered
The virtual value of output current several times of current operation frequency add up, and by obtained accumulated value divided by the running frequency
Under current sample number.
Further, the maximum current value in output current value is obtained：
S37：Judge whether the average value of the virtual value of the output current of target intermediate frequency power supply under current operation frequency is more than
The current value of default backup.Wherein, the initial value of the current value of backup can be that user is pre-set, such as according to history number
According to or the selections such as personal experience setting a value.
S38：If the average value of the virtual value of the output current of target intermediate frequency power supply is more than default under current operation frequency
The current value of backup is then updated to the effective of the output current of target intermediate frequency power supply under current operation frequency by the current value of backup
The average value of value, and record current operation frequency.
S39：Current operation frequency is increased into default delta value and carries out current operation frequency update, and is back to step
Rapid S34：The target intermediate frequency power supply of current operation frequency is interrupted by default timer.
S310：If the average value of the virtual value of the output current of target intermediate frequency power supply is less than default under current operation frequency
The current value of backup, then judge whether current operation frequency reaches upper limit value.
S311：If current operation frequency reaches upper limit value, it is determined that the current value of backup is maximum current value.Then
Perform step S14：Lock the optimized operation frequency that the corresponding running frequency of maximum current value is target intermediate frequency power supply.Control intermediate frequency
Power supply is run with the optimized operation frequency.
If current operation frequency is not up to upper limit value, step S39 is gone to：Current operation frequency is increased into default variable
Increment size carries out current operation frequency update.
In the present embodiment, the target intermediate frequency power supply of current operation frequency is interrupted by default timer, it is excellent
It elects as：The target intermediate frequency power supply of current operation frequency is interrupted by the timer that the cycle is 20 μ s.
The running frequency of intermediate frequency power supply is generally higher, and the cycle is shorter, so timer is introduced in the present embodiment,
The timer of 20 μ s described above carrys out real-time sampling output current, the sampling output electricity as much as possible on the premise of needs are met
Flow valuve by carrying out multiple repairing weld to the corresponding output current value of same running frequency and calculating average value, is subject to realization more
True calculating.In order to obtain maximum output current value, so needing constantly to change the running frequency of intermediate frequency power supply, remember simultaneously
Corresponding output current value and running frequency value are recorded, to search out the corresponding running frequency value of maximum output current value, in this reality
It applies in mode and is searched with frequency increments patterns.
It please refers to Fig.4, Fig. 4 is the automatic seeking frequency method flow for intermediate frequency power supply that another embodiment of the invention provides
Figure.
In the present embodiment, as shown in figure 4, including for the automatic seeking frequency method of intermediate frequency power supply：
S41：Preset the upper limit value and lower limiting value of the running frequency of target intermediate frequency power supply.
It determines the self-regulation mode of the running frequency of target intermediate frequency power supply, and operation frequency is determined according to self-regulation mode
The adjustment starting point of rate.According to self-regulation mode, the operation frequency of adjust automatically target intermediate frequency power supply by adjustment starting point
Rate.
Wherein it is determined that the self-regulation mode of the running frequency of target intermediate frequency power supply, and determined according to self-regulation mode
The adjustment starting point of running frequency, including：
S42：The self-regulation mode for determining the running frequency of target intermediate frequency power supply is frequency decline mode.
S43：Determine the upper limit value of the running frequency of target intermediate frequency power supply for adjustment starting point.
Further, the output current value of real-time sampling target intermediate frequency power supply：
S44：The target intermediate frequency power supply of current operation frequency is interrupted by default timer.
S45：The virtual value of the output current of target intermediate frequency power supply several times is gathered in real time.
S46：Calculate the average value of the virtual value of the output current of target intermediate frequency power supply under current operation frequency.It will gather
The virtual value of output current several times of current operation frequency add up, and by obtained accumulated value divided by the running frequency
Under current sample number.
Further, the maximum current value in output current value is obtained：
S47：Judge whether the average value of the virtual value of the output current of target intermediate frequency power supply under current operation frequency is more than
The current value of default backup.
S48：If the average value of the virtual value of the output current of target intermediate frequency power supply is more than default under current operation frequency
The current value of backup is then updated to the effective of the output current of target intermediate frequency power supply under current operation frequency by the current value of backup
The average value of value, and record current operation frequency.
S49：Current operation frequency is reduced into default delta value and carries out current operation frequency update, and is back to step
Rapid S44：The target intermediate frequency power supply of current operation frequency is interrupted by default timer.
S410：If the average value of the virtual value of the output current of target intermediate frequency power supply is less than default under current operation frequency
The current value of backup, then judge whether current operation frequency reaches lower limiting value.
S411：If current operation frequency reaches lower limiting value, it is determined that the current value of backup is maximum current value.Then
Perform step S14：Lock the optimized operation frequency that the corresponding running frequency of maximum current value is target intermediate frequency power supply.Control intermediate frequency
Power supply is run with the optimized operation frequency.
If current operation frequency is not up to lower limiting value, step S49 is gone to：Current operation frequency is reduced into default variable
Increment size carries out current operation frequency update.
In the present embodiment, the target intermediate frequency power supply of current operation frequency is interrupted by default timer, is：
The target intermediate frequency power supply of current operation frequency is interrupted by the timer that the cycle is 20 μ s.
The running frequency of intermediate frequency power supply is generally higher, and the cycle is shorter, so timer is introduced in the present embodiment,
The sampled output current value as much as possible on the premise of needs are met, by the corresponding output current value of same running frequency
It carries out multiple repairing weld and calculates average value, to realize more accurate calculate.In order to obtain maximum output current value, so needing
The running frequency of intermediate frequency power supply constantly changed, while record corresponding output current value and running frequency value, to search out
The corresponding running frequency value of maximum output current value, in the present embodiment unlike a upper embodiment, this embodiment party
Formula is searched with frequency decline mode.
In conclusion the automatic seeking frequency method provided by the present invention for intermediate frequency power supply, during automatic seeking frequency in real time
The variation of follow current so as to calculate the optimum operation frequency of intermediate frequency power supply, can search out the humorous of intermediate frequency power supply exactly
Vibration frequency, control intermediate frequency power supply is run with the optimized operation frequency, so that its operational efficiency is maximum.
It a kind of is described in detail above to provided by the present invention for the automatic seeking frequency method of intermediate frequency power supply.Herein
In apply specific case the principle of the present invention and embodiment be set forth, the explanation of above example is only intended to sides
Assistant solves the present invention and its core concept.It should be pointed out that for those skilled in the art, this is not being departed from
On the premise of inventive principle, can also to the present invention some improvement and modification can also be carried out, these improvement and modification also fall into the present invention
In scope of the claims.
Claims (10)
1. a kind of automatic seeking frequency method for intermediate frequency power supply, which is characterized in that including：
According to the running frequency of default frequency adjustable strategies adjust automatically target intermediate frequency power supply；
The output current value of target intermediate frequency power supply described in real-time sampling；
Obtain the maximum current value in the output current value；
Lock the optimized operation frequency that the corresponding running frequency of the maximum current value is the target intermediate frequency power supply.
It is 2. according to the method described in claim 1, it is characterized in that, described according to default frequency adjustable strategies adjust automatically mesh
The running frequency of intermediate frequency power supply is marked, including：
Preset the upper limit value and lower limiting value of the running frequency of the target intermediate frequency power supply；
It determines the self-regulation mode of the running frequency of the target intermediate frequency power supply, and determines to transport according to the self-regulation mode
The adjustment starting point of line frequency；
According to the self-regulation mode, the operation frequency of target intermediate frequency power supply described in adjust automatically by the adjustment starting point
Rate.
3. the according to the method described in claim 2, it is characterized in that, running frequency for determining the target intermediate frequency power supply
Self-regulation mode, and determine according to the self-regulation mode adjustment starting point of running frequency, including：
The self-regulation mode for determining the running frequency of the target intermediate frequency power supply is frequency increments pattern；
Determine the lower limiting value of the running frequency of the target intermediate frequency power supply for adjustment starting point.
4. the according to the method described in claim 3, it is characterized in that, output electricity of target intermediate frequency power supply described in the real-time sampling
Flow valuve, including：
The target intermediate frequency power supply of current operation frequency is interrupted by default timer；
The virtual value of the output current of the target intermediate frequency power supply several times is gathered in real time；
Calculate the average value of the virtual value of the output current of the target intermediate frequency power supply under current operation frequency.
5. the according to the method described in claim 4, it is characterized in that, maximum current obtained in the output current value
Value, including：
Judge whether the average value of the virtual value of the output current of the target intermediate frequency power supply under the current operation frequency is more than
The current value of default backup；
If so, the current value of the backup is updated to the output electricity of the target intermediate frequency power supply under the current operation frequency
The average value of the virtual value of stream, and record current operation frequency；
The current operation frequency is increased into default delta value and carries out current operation frequency update, and is back to step：
The target intermediate frequency power supply of current operation frequency is interrupted by default timer；
If it is not, then judging whether the current operation frequency reaches the upper limit value；
If the current operation frequency reaches the upper limit value, it is determined that the current value of the backup is the maximum current value；
If the current operation frequency is not up to the upper limit value, step is gone to：The current operation frequency is increased default
Delta value carry out current operation frequency update.
6. the according to the method described in claim 2, it is characterized in that, running frequency for determining the target intermediate frequency power supply
Self-regulation mode, and determine according to the self-regulation mode adjustment starting point of running frequency, including：
The self-regulation mode for determining the running frequency of the target intermediate frequency power supply is frequency decline mode；
Determine the upper limit value of the running frequency of the target intermediate frequency power supply for adjustment starting point.
7. the according to the method described in claim 6, it is characterized in that, output electricity of target intermediate frequency power supply described in the real-time sampling
Flow valuve, including：
The target intermediate frequency power supply of current operation frequency is interrupted by default timer；
The virtual value of the output current of the target intermediate frequency power supply several times is gathered in real time；
Calculate the average value of the virtual value of the output current of the target intermediate frequency power supply under current operation frequency.
8. the method according to the description of claim 7 is characterized in that maximum current obtained in the output current value
Value, including：
Judge whether the average value of the virtual value of the output current of the target intermediate frequency power supply under the current operation frequency is more than
The current value of default backup；
If so, the current value of the backup is updated to the output electricity of the target intermediate frequency power supply under the current operation frequency
The average value of the virtual value of stream, and record current operation frequency；
The current operation frequency is reduced into default delta value and carries out current operation frequency update, and is back to step：
The target intermediate frequency power supply of current operation frequency is interrupted by default timer；
If it is not, then judging whether the current operation frequency reaches the lower limiting value；
If the current operation frequency reaches the lower limiting value, it is determined that the current value of the backup is the maximum current value；
If the current operation frequency is not up to the lower limiting value, step is gone to：The current operation frequency is reduced default
Delta value carry out current operation frequency update.
9. method according to claim 4 or 5, which is characterized in that it is described by default timer to currently run frequency
The target intermediate frequency power supply of rate is interrupted, and is：
The target intermediate frequency power supply of current operation frequency is interrupted by the timer that the cycle is 20 μ s.
10. the method according to claim 7 or 8, which is characterized in that it is described by default timer to currently run frequency
The target intermediate frequency power supply of rate is interrupted, and is：
The target intermediate frequency power supply of current operation frequency is interrupted by the timer that the cycle is 20 μ s.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633264A (en) * | 2018-12-13 | 2019-04-16 | 深圳市英威腾电气股份有限公司 | A kind of intermediate frequency power supply seeks frequency method, device and equipment |
| CN109633484A (en) * | 2018-12-13 | 2019-04-16 | 深圳市英威腾电气股份有限公司 | A kind of phase-lock technique of intermediate frequency power supply, device and equipment |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2208752Y (en) * | 1994-10-17 | 1995-09-27 | 王钟秀 | Medium-frequency power source output device |
| CN101269370A (en) * | 2007-03-22 | 2008-09-24 | 深圳市艾柯森自动化设备有限公司 | Digital ultrasonic generator |
| EP2226925A1 (en) * | 2009-03-02 | 2010-09-08 | Schwering & Hasse Elektrodraht GmbH | Indirect voltage link a.c. converter and method for manufacturing the same |
| CN101925208A (en) * | 2010-06-03 | 2010-12-22 | 湘潭科创机电有限公司 | Maximum power factor control method of intermediate frequency power supply induction heating apparatus |
| CN101964506A (en) * | 2010-09-13 | 2011-02-02 | 东南大学 | High voltage high powder double-tuned method for electric deicing of overhead power transmission line |
| CN102755931A (en) * | 2011-12-21 | 2012-10-31 | 厦门锐传科技有限公司 | Variable-frequency medium-frequency power supply for electrostatic dust collection |
| CN202696475U (en) * | 2012-08-13 | 2013-01-23 | 天津腾飞钢管有限公司 | Temperature adjustment system of intermediate-frequency power supply |
| CN103001599A (en) * | 2011-09-15 | 2013-03-27 | 华润矽威科技（上海）有限公司 | LC resonance frequency searching circuit and LC resonance frequency searching method |
| CN103117559A (en) * | 2013-03-08 | 2013-05-22 | 深圳市英威腾电气股份有限公司 | Method, device and inverter for improving grid-tied electric energy quality |
| CN105305966A (en) * | 2015-09-14 | 2016-02-03 | 佛山市铬维科技有限公司 | Ultrasonic processing machine tool based automatic frequency sweeping device and frequency sweeping method |
| CN205232038U (en) * | 2015-12-16 | 2016-05-11 | 深圳Tcl数字技术有限公司 | Variable frequency power supply circuit and TV set |
-
2017
- 2017-12-25 CN CN201711420469.0A patent/CN108054927A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2208752Y (en) * | 1994-10-17 | 1995-09-27 | 王钟秀 | Medium-frequency power source output device |
| CN101269370A (en) * | 2007-03-22 | 2008-09-24 | 深圳市艾柯森自动化设备有限公司 | Digital ultrasonic generator |
| EP2226925A1 (en) * | 2009-03-02 | 2010-09-08 | Schwering & Hasse Elektrodraht GmbH | Indirect voltage link a.c. converter and method for manufacturing the same |
| CN101925208A (en) * | 2010-06-03 | 2010-12-22 | 湘潭科创机电有限公司 | Maximum power factor control method of intermediate frequency power supply induction heating apparatus |
| CN101964506A (en) * | 2010-09-13 | 2011-02-02 | 东南大学 | High voltage high powder double-tuned method for electric deicing of overhead power transmission line |
| CN103001599A (en) * | 2011-09-15 | 2013-03-27 | 华润矽威科技（上海）有限公司 | LC resonance frequency searching circuit and LC resonance frequency searching method |
| CN102755931A (en) * | 2011-12-21 | 2012-10-31 | 厦门锐传科技有限公司 | Variable-frequency medium-frequency power supply for electrostatic dust collection |
| CN202696475U (en) * | 2012-08-13 | 2013-01-23 | 天津腾飞钢管有限公司 | Temperature adjustment system of intermediate-frequency power supply |
| CN103117559A (en) * | 2013-03-08 | 2013-05-22 | 深圳市英威腾电气股份有限公司 | Method, device and inverter for improving grid-tied electric energy quality |
| CN105305966A (en) * | 2015-09-14 | 2016-02-03 | 佛山市铬维科技有限公司 | Ultrasonic processing machine tool based automatic frequency sweeping device and frequency sweeping method |
| CN205232038U (en) * | 2015-12-16 | 2016-05-11 | 深圳Tcl数字技术有限公司 | Variable frequency power supply circuit and TV set |
Non-Patent Citations (1)
| Title |
|---|
| 李齐文: "超声波铸造振动系统热模态和宽频频率跟踪的实现及其试验研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑 B022-104》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633264A (en) * | 2018-12-13 | 2019-04-16 | 深圳市英威腾电气股份有限公司 | A kind of intermediate frequency power supply seeks frequency method, device and equipment |
| CN109633484A (en) * | 2018-12-13 | 2019-04-16 | 深圳市英威腾电气股份有限公司 | A kind of phase-lock technique of intermediate frequency power supply, device and equipment |
| CN109633484B (en) * | 2018-12-13 | 2021-06-29 | 深圳市英威腾电气股份有限公司 | Phase locking method, device and equipment of intermediate frequency power supply |
| CN109633264B (en) * | 2018-12-13 | 2021-07-06 | 深圳市英威腾电气股份有限公司 | Frequency searching method, device and equipment of intermediate frequency power supply |
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