CN105960689B - The mode of resonance power converter transformer of winding method is reduced using leakage magnetic flux - Google Patents

The mode of resonance power converter transformer of winding method is reduced using leakage magnetic flux Download PDF

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Publication number
CN105960689B
CN105960689B CN201480074844.9A CN201480074844A CN105960689B CN 105960689 B CN105960689 B CN 105960689B CN 201480074844 A CN201480074844 A CN 201480074844A CN 105960689 B CN105960689 B CN 105960689B
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mode
transformer
resonance
power converter
line
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CN201480074844.9A
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CN105960689A (en
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赵正珉
韩咏材
郑现丞
李昌荣
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Korea Railroad Research Institute KRRI
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Korea Railroad Research Institute KRRI
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/346—Preventing or reducing leakage fields
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2847—Sheets; Strips
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/42—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P13/00—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

It the present invention relates to the use of the mode of resonance power converter transformer that leakage magnetic flux reduces winding method, in more detail, the leakage magnetic flux for being related to a kind of mode of resonance power converter transformer reduces winding method, for mode of resonance power converter, in order to improve resonant frequency, this method can minimize the leakage magnetic flux of the transformer of resonance circuit.The present invention in order to mode of resonance power converter resonance and after the armature winding line by making to have same shape and secondary windings line insulate respectively, it is set to be wound into a roll barrel shape after being laminated in a manner of mutually opposing, so that the leakage magnetic flux that armature winding line and secondary windings line occur cancels each other out and substantially reduces the leakage magnetic flux of transformer.

Description

The mode of resonance power converter transformer of winding method is reduced using leakage magnetic flux
Technical field
The present invention relates to a kind of leakage of mode of resonance power converter (Resonant power converter) transformer Magnetic flux reduces winding method (Winding method for reducing leakage flux), in more detail, is related to one kind such as The leakage magnetic flux of lower described mode of resonance power converter transformer reduces winding method, for mode of resonance power converter, In order to improve resonant frequency, this method can minimize the leakage magnetic flux of the transformer of resonance circuit.
Background technology
In general, mode of resonance full-bridge (Full-bridge) DC-DC converter (Converter) or half-bridge DC-DC conversion In device, the resonance frequency that the parameter value between the electric capacity (Capacitor) of resonance determines occurs by the leakage inductance (L) for transformer Rate carrys out driving transducer.
However, in the case where the parameter value of resonant element is big, it may occur that by resonant frequency cause resonant frequency reduce or The problem of leakage magnetic flux of transformer supplies substantial amounts of electric current to electric capacity and needs to improve the voltage class of element.
As shown in Fig. 2 for existing high frequency transformer, armature winding line, secondary windings line are repeatedly laminated volume In the case of, magnetic flux and magnetic core are not interlinked (interlinkage), but flux circuit is formed between coil (magnetic flux loop), so as to add the leakage inductance as caused by leakage magnetic flux (Leakage Inductance).
Thus, existing high-voltage large-capacity resonant converter for reduce transformer reactive power need many around Group line number, so as to have the problem of increase leakage magnetic flux, and the resonant frequency of system is certain to reduce, it is therefore desirable to solves this The new technology of problem.
The content of the invention
The technical problem to be solved in the present invention
Above-mentioned in order to solve the problems, such as, the present invention is provided the following mode of resonance power that winding method is reduced using leakage magnetic flux and turned Armature winding line and secondary windings line are fabricated to and are alternately laminated on each other, so that leakage magnetic flux by parallel operation transformer, the transformer Cancel each other out and substantially reduce the leakage magnetic flux of transformer.
Technical scheme
The present invention is to make the armature winding line and secondary windings of same shape for the resonance of mode of resonance power converter Line insulate respectively, it is wound into a roll the structure of barrel shape after being laminated in a manner of mutually opposing afterwards.
According to an embodiment, above-mentioned winding wire is flat board winding wire.
According to an embodiment, above-mentioned transformer is by insulated gate bipolar transistor and diode and split capacitor (Split Capacitor) in the mode of resonance half-bridge DC-DC converter formed, in order to by the way that resonance occurs with leakage inductance to form alternation magnetic , in the case that the leakage inductance of above-mentioned transformer is reduced to less than into a reference value, the both end voltage of above-mentioned split capacitor can be reduced Change.
According to an embodiment, above-mentioned transformer is being made up of insulated gate bipolar transistor and diode and resonant capacitance In mode of resonance full-bridge DC-DC converter, in the case that the leakage inductance of above-mentioned transformer is reduced to less than into a reference value, it can improve and open Close frequency or reduce to the magnitude of current of resonant capacitance charging and reduce capacitance voltage grade.
Beneficial effect
The present invention armature winding line and secondary windings line are fabricated to be alternately laminated on each other, make armature winding line and it is secondary around The leakage magnetic flux (arrow) occurred in group line cancels each other out, so as to have the advantages of leakage magnetic flux for substantially reducing transformer.
According to the present invention, when the parameter hour of inductively or capacitively (inductor) relevant with resonance phenomena, mode of resonance becomes Parallel operation can improve resonant frequency, so that system compact.
According to the present invention, the transformer of hicap can also make leakage inductance minimize and improve resonant frequency.
Brief description of the drawings
Fig. 1 is the figure of the resonant frequency for illustrating existing invention etc..
Fig. 2 for show it is according to existing invention, armature winding line and secondary windings line are repeatedly laminated the figure wound.
Fig. 3 is to show the alternately laminated figure of armature winding line and secondary windings line according to the present invention.
Fig. 4 is to show the mode of resonance power converter that winding method is reduced using leakage magnetic flux according to one embodiment of the invention With the figure of the winding method of transformer.
Fig. 5 is the figure for showing the mode of resonance half-bridge DC-DC converter according to one embodiment of the invention.
Fig. 6 is the figure for showing the mode of resonance full-bridge DC-DC converter according to one embodiment of the invention.
Embodiment
In order to fully understand the present invention, with reference to appended brief description of the drawings the preferred embodiments of the present invention.Embodiments of the invention It can be changed in a variety of manners, the scope of the present invention is not construed as limited to embodiment described further below.This reality Applying example is provided to intactly illustrate the present invention to the common technical staff in this area.Thus, key element in accompanying drawing Shape etc. can be to emphasize explicitly stated to exaggerate expression.It is noted that identical component is possible in each accompanying drawing Illustrated with identical reference.In addition, if the detailed description to known function and structure may obscure the present invention Purport, then will omit detailed description thereof.
As shown in figure 3, in the present invention, in order to mode of resonance power converter resonance and so that the armature winding of transformer 10 The opposed armature winding line 12 of mode and secondary windings line 14 that line 12 and secondary windings line 14 are alternately laminated on each other simultaneously are pasted Afterwards, with bobbin shape wound on iron core 19.
That is, as shown in figure 4, as one embodiment of the invention, make identical for the resonance of mode of resonance power converter After the armature winding line 12 and secondary windings line 14 of shape are laminated or be laminated in a manner of opposite each other, barrel shape is wound into a roll.
The entirety of above-mentioned armature winding line 12 and secondary windings line 14 being made up of copper coin is insulated respectively.
Above-mentioned winding wire 12,14 is flat board winding wire, for example, the copper coin of the insulation of two A4 paper sizes can be overlapped and Use.
And then armature winding line 12 and secondary windings line 14 are fabricated to be alternately laminated on each other, make armature winding line and time The leakage magnetic flux (indicated by an arrow) occurred in level winding wire cancels each other out, so as to substantially reduce the leakage magnetic flux of transformer.
On the other hand, with reference to the mode of resonance half-bridge DC-DC converter of one embodiment of the invention according to Fig. 5, it is by exhausted Edge grid bipolar transistor (insulated gate bipolar mode transistor, IGBT) 22 and the grade structure of diode 26 Into being so that the leakage inductance of split capacitor (Split capacitor) 24 and transformer 10 occurs resonance and makes alternating magnetic field Device.When reducing the leakage inductance of transformer 10 according to the present invention, the both end voltage of split capacitor 24 can be made to change minimum Change.
With reference to the mode of resonance full-bridge DC-DC converter in figure 6 according to one embodiment of the invention, it is by insulated gate bipolar Transistor 22 ' and diode 26 ' and resonant capacitance 24 ' etc. are formed, and the leakage inductance of transformer 10 ' is reduced according to the present invention When, it is possible to increase switching frequency (switching frequency) reduces the magnitude of current to be charged to resonant capacitance, so as to reduce The voltage class of electric capacity.
That is, the present invention forms friendship in order to which resonance occurs with leakage inductance in mode of resonance half-bridge DC-DC converter Varying magnetic field, the both end voltage of above-mentioned split capacitor is made when being reduced to by the leakage inductance of above-mentioned transformer and be less than a reference value (certain value) Change and be less than value in the past, or it is small by being reduced to the leakage inductance of above-mentioned transformer in mode of resonance full-bridge DC-DC converter Switching frequency is higher than conventional value when a reference value or reduce the magnitude of current of the charging to resonant capacitance, so as to reduce electric capacity Voltage class.Here a reference value is the numerical value on the basis of existing invention.
Thus, as shown in Figure 5 and Figure 6, the parameter value hour inductively or capacitively relevant with resonance phenomena in the present invention, energy It is enough to make system compact by improving resonant frequency.
Mode of resonance power converter transformer that winding method is reduced using leakage magnetic flux described above according to the present invention Embodiment only only belong to an example, as long as the common technical staff of the technical field of the invention, then should be clear and definite Can thus it be variously changed and impartial other embodiment.
Thus, it should it is understood that the present invention is not restricted to the form referred in above-mentioned detailed description.Therefore, it is of the invention Actual technical protection scope should be determined with the technological thought in appended patent claims.In addition, it is necessary to understand, this Invention include it is with good grounds appended by the thought and its scope of the invention that defines of claim in all deformations and equalization Thing and sub.
The explanation of reference
10、10’：Transformer 12：Armature winding line
14：Secondary windings line 19：Iron core
22、22’：Insulated gate bipolar transistor IGBT 24：Split capacitor (Split Capacitor)
24’：Resonant capacitance (resonant capacitor) 26,26 '：Diode

Claims (3)

  1. A kind of 1. mode of resonance power converter transformer that winding method is reduced using leakage magnetic flux, it is characterised in that
    The mode of resonance power converter transformer, pass through the armature winding line and secondary windings for making to be made up of flat board winding wire After line insulate respectively, configured in a manner of making armature winding line and secondary windings line superposed on one another, wherein, odd number layer is configured with just Level winding wire, even numbers layer are configured with secondary windings line, and the sense of current of armature winding line and secondary windings line is mutually opposite Mode is configured, and make the armature winding line and secondary windings line centered on transformer core axle, with transformer winding wire Number is wound and formed.
  2. 2. the mode of resonance power converter transformer according to claim 1 that winding method is reduced using leakage magnetic flux, it is special Sign is,
    The mode of resonance power converter is formed as follows with transformer：
    In the mode of resonance half-bridge DC-DC converter being made up of insulated gate bipolar transistor and diode and split capacitor, When resonance current occurs between leakage inductance and split capacitor and alternating magnetic field is produced in transformer, the leakage inductance of transformer is big, In the case that resonance current is big, split capacitor both end voltage can be reduced by accumulating many electric charges in the split capacitor The increase of variation.
  3. 3. the mode of resonance power converter transformer according to claim 1 that winding method is reduced using leakage magnetic flux, it is special Sign is,
    The mode of resonance power converter is formed as follows with transformer：
    , will in the mode of resonance full-bridge DC-DC converter being made up of insulated gate bipolar transistor and diode and resonant capacitance In the case that the leakage inductance of the transformer is reduced to less than a reference value, switching frequency can be improved or reduced and charged to resonant capacitance The magnitude of current, so as to reduce capacitance voltage grade.
CN201480074844.9A 2014-02-03 2014-11-26 The mode of resonance power converter transformer of winding method is reduced using leakage magnetic flux Active CN105960689B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR10-2014-0012315 2014-02-03
KR1020140012315A KR101545735B1 (en) 2014-02-03 2014-02-03 Resonant power transformer with the reduced leakage inductance using new winding method
PCT/KR2014/011400 WO2015115726A1 (en) 2014-02-03 2014-11-26 Transformer for resonant power converter using winding method for reducing leakage flux

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CN105960689A CN105960689A (en) 2016-09-21
CN105960689B true CN105960689B (en) 2017-12-15

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Publication number Priority date Publication date Assignee Title
CN113992033B (en) * 2021-10-29 2023-12-12 京东方科技集团股份有限公司 Driving circuit, dimming glass and motor

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JPH0888906A (en) * 1994-09-14 1996-04-02 Hitachi Ltd Charger for electric railcar
CN101478226A (en) * 2008-05-30 2009-07-08 北京利德华福电气技术有限公司 By-pass circuit for DC electric power preset voltage chain form voltage type inverter power unit
CN102055348A (en) * 2010-12-24 2011-05-11 东南大学 Voltage reducing power electronic transformer for distribution network
CN102498650A (en) * 2009-09-21 2012-06-13 艾思玛太阳能技术股份公司 Starting up a dc/dc converter having a high-frequency transformer
JP2012243880A (en) * 2011-05-17 2012-12-10 Murata Mach Ltd Transformer, non-contact power supply system, and method for manufacturing high-frequency transformer

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JP2001103751A (en) 1999-09-30 2001-04-13 Sony Corp Switching power circuit and isolation converter transformer
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JP2012028642A (en) * 2010-07-26 2012-02-09 Toshiba Corp Transformer
JP5701120B2 (en) * 2011-03-23 2015-04-15 三菱電機株式会社 Magnetic shielding device for transformer
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Publication number Priority date Publication date Assignee Title
JPH0888906A (en) * 1994-09-14 1996-04-02 Hitachi Ltd Charger for electric railcar
CN101478226A (en) * 2008-05-30 2009-07-08 北京利德华福电气技术有限公司 By-pass circuit for DC electric power preset voltage chain form voltage type inverter power unit
CN102498650A (en) * 2009-09-21 2012-06-13 艾思玛太阳能技术股份公司 Starting up a dc/dc converter having a high-frequency transformer
CN102055348A (en) * 2010-12-24 2011-05-11 东南大学 Voltage reducing power electronic transformer for distribution network
JP2012243880A (en) * 2011-05-17 2012-12-10 Murata Mach Ltd Transformer, non-contact power supply system, and method for manufacturing high-frequency transformer

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WO2015115726A1 (en) 2015-08-06
KR20150091730A (en) 2015-08-12
CN105960689A (en) 2016-09-21
KR101545735B1 (en) 2015-08-20

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