KR101545735B1 - Resonant power transformer with the reduced leakage inductance using new winding method - Google Patents

Resonant power transformer with the reduced leakage inductance using new winding method Download PDF

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KR101545735B1
KR101545735B1 KR1020140012315A KR20140012315A KR101545735B1 KR 101545735 B1 KR101545735 B1 KR 101545735B1 KR 1020140012315 A KR1020140012315 A KR 1020140012315A KR 20140012315 A KR20140012315 A KR 20140012315A KR 101545735 B1 KR101545735 B1 KR 101545735B1
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South Korea
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transformer
winding
power converter
resonant
capacitor
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KR1020140012315A
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Korean (ko)
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KR20150091730A (en
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조정민
한영재
정현승
이창영
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한국철도기술연구원
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Priority to KR1020140012315A priority Critical patent/KR101545735B1/en
Priority to CN201480074844.9A priority patent/CN105960689B/en
Priority to PCT/KR2014/011400 priority patent/WO2015115726A1/en
Priority to BR102014032150-0A priority patent/BR102014032150B1/en
Priority to US14/579,959 priority patent/US20150222188A1/en
Publication of KR20150091730A publication Critical patent/KR20150091730A/en
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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
    • 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
    • H01F27/28—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

Abstract

본 발명은 공진형 전력변환기용 변압기의 누설자속저감 권선법에 관한 것으로서, 보다 상세하게는 공진형 전력변환기에 있어 공진주파수를 상승시키기 위해 공진회로에 이용되는 변압기의 누설자속을 최소화하고자 한 공진형 전력변환기용 변압기의 누설자속저감 권선법에 관한 것이다.
본 발명은 공진형 전력변환기의 공진을 위해 동일한 형상의 1차측과 2차측 권선을 각각 절연시킨 후 상호 대향하도록 적층시킨 후 두루마리 형상으로 돌려 감아서, 1차측과 2차측 권선에서 발생되는 누설자속이 서로 상쇄되어 변압기의 누설자속을 현저하게 줄일 수 있도록 되어 있다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a leakage magnetic flux reduction winding method of a transformer for a resonance type power converter, and more particularly, to a resonance type power converter having a resonance type in which a leakage flux of a transformer used in a resonance circuit is minimized To a leakage flux reduction winding method of a transformer for a power converter.
In order to resonate the resonance type power converter, the primary side and the secondary side winding of the same shape are insulated from each other, laminated so as to face each other, and then wound in a rolled shape so that the leakage flux generated in the primary side and the secondary side winding So that the leakage magnetic flux of the transformer can be remarkably reduced.

Description

누설자속저감 권선법을 이용한 공진형 전력변환기용 변압기{RESONANT POWER TRANSFORMER WITH THE REDUCED LEAKAGE INDUCTANCE USING NEW WINDING METHOD}BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a transformer for a resonance type power converter using a leakage magnetic flux reduction winding method,

본 발명은 공진형 전력변환기용 변압기의 누설자속저감 권선법에 관한 것으로서, 보다 상세하게는 공진형 전력변환기에 있어 공진주파수를 상승시키기 위해 공진회로에 이용되는 변압기의 누설자속을 최소화하고자 한 공진형 전력변환기용 변압기의 누설자속저감 권선법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a leakage magnetic flux reduction winding method of a transformer for a resonance type power converter, and more particularly, to a resonance type power converter having a resonance type in which a leakage flux of a transformer used in a resonance circuit is minimized To a leakage flux reduction winding method of a transformer for a power converter.

일반적으로 공진형 Full-bridge DC to DC 컨버터나 Half Bridge DC to DC 컨버터의 경우 변압기의 누설인덕턴스(L)와 공진을 위한 커패시터(C)간의 파라미터 값에 의해 결정된 공진주파수로 컨버터를 구동한다.Generally, in a resonant full-bridge DC to DC converter or a half-bridge DC to DC converter, the converter is driven at a resonance frequency determined by the parameter value between the leakage inductance (L) of the transformer and the capacitor (C) for resonance.

그러나, 공진 소자의 파라미터값이 큰 경우 공진주파수 에 의해 공진주파수가 낮아지거나, 변압기의 누설자속이 커패시터에 대량의 전류를 공급하여 소자의 전압레벨을 상승시켜야 하는 문제점이 발생되었다.However, when the parameter value of the resonance element is large, the resonance frequency is lowered due to the resonance frequency, or the leakage flux of the transformer supplies a large amount of current to the capacitor to raise the voltage level of the element.

도 2에서 보는 바와 같이, 기존 고주파용 변압기의 경우 1,2차측 권선을 여러 차례 적층하여 감는 경우 자속이 코어와 쇄교하지 않고 코일간에 자속루프를 형성하여 누설자속에 의한 누설인덕턴스(Leakage Inductance)가 증가하였다.As shown in FIG. 2, in the case of a conventional high frequency transformer, when the first and second windings are wound several times, the magnetic flux does not link with the core but forms a magnetic flux loop between the coils and the leakage inductance Respectively.

따라서 종래의 고전압 대용량 공진형 컨버터는 변압기의 무효전력을 감소시키기 위해 많은 권선수가 필요하여 누설자속이 증가되는 문제점이 있었고, 시스템의 공진주파수가 낮아질 수 밖에 없어서, 이를 해결할 수 있는 새로운 기술이 필요하게 되었다.Therefore, in the conventional high-voltage large capacity resonance type converter, there is a problem that a large number of windings are required to reduce the reactive power of the transformer, thereby increasing the leakage flux, and the resonance frequency of the system is inevitably lowered. .

상술한 문제점을 해결하기 위하여 본 발명은 1차측 권선과 2차측 권선이 서로 교번하여 적층되도록 제작하여, 누설자속이 서로 상쇄되어 변압기의 누설자속을 현저하게 줄일 수 있는 누설자속저감 권선법을 이용한 공진형 전력변환기용 변압기를 제공할 수 있다.In order to solve the above-described problems, the present invention provides a method of manufacturing a resonance circuit using a leakage magnetic flux reduction winding method in which a primary winding and a secondary winding are alternately laminated so that leakage magnetic fluxes cancel each other, Type power converter can be provided.

본 발명은 공진형 전력변환기의 공진을 위해 동일한 형상의 1차측과 2차측 권선을 각각 절연시킨 후 상호 대향하도록 적층시킨 후 두루말이 형상으로 돌려 감은 구조이다.In order to resonate the resonant power converter, the primary winding and the secondary winding of the same shape are insulated from each other, laminated so as to face each other, and then rotated in the form of a thread.

일실시예에 있어서, 상기 권선은 평판 권선이다.In one embodiment, the windings are flat plate windings.

일실시예에 있어서, 상기 변압기는, IGBT와 다이오드 및 스플릿 캐패시터(Split Capacitor)로 이루어진 공진형 Half Bridge DC to DC 컨버터에서, 누설 인덕턴스와 공진을 발생시켜 교번자계를 생성시키기 위하여, 상기 변압기의 누설인덕턴스를 기준치 보다 감소시키는 경우 상기 스플릿 캐패시터의 양단 전압 변동을 감소시킨다.In one embodiment, the transformer is a resonant half bridge DC to DC converter comprising an IGBT, a diode, and a split capacitor. In order to generate an alternating magnetic field by generating leakage inductance and resonance, When the inductance is reduced from the reference value, the voltage variation across the split capacitor is reduced.

일실시예에 있어서, 상기 변압기는, IGBT와 다이오드 및 공진 캐패시터로 이루어진 공진형 Full Bridge DC to DC 컨버터에서, 상기 변압기의 누설인덕턴스를 기준치 보다 감소시키는 경우 스위칭 주파수를 높일 수 있거나 또는 공진 커패시터에 충전되는 전류량을 감소시켜 커패시터 전압레벨을 낮출 수 있다.In one embodiment, the transformer is a resonant full bridge DC to DC converter comprising an IGBT, a diode, and a resonant capacitor. When the leakage inductance of the transformer is reduced below a reference value, the switching frequency can be increased or the resonant capacitor can be charged So that the capacitor voltage level can be lowered.

본 발명에 따르면 1차측 권선과 2차측 권선이 서로 교번하여 적층되도록 제작하여, 1차측과 2차측 권선에서 발생되는 누설자속(화살표)이 서로 상쇄되어 변압기의 누설자속을 현저하게 줄일 수 있는 장점이 있다.According to the present invention, the primary winding and the secondary winding are alternately laminated so that leakage magnetic fluxes (arrows) generated in the primary winding and the secondary winding are offset from each other, thereby remarkably reducing the leakage magnetic flux of the transformer have.

본 발명에 따르면 공진형 컨버터는 공진현상과 관련된 커패시터나 인덕터의 파라미터가 작을 경우 공진주파수를 상승시켜 시스템을 소형화할 수 있다.According to the present invention, when the parameters of the capacitor and the inductor related to the resonance phenomenon are small, the resonance type converter can increase the resonance frequency and miniaturize the system.

본 발명에 따르면 대용량 시스템의 변압기도 누설인덕턴스를 최소화하여 공진주파수를 증가시킬 수 있는 장점이 있다.According to the present invention, the transformer of a large-capacity system also has an advantage that the resonance frequency can be increased by minimizing the leakage inductance.

도 1은 종래 발명에 따른 공진주파수 등을 설명하기 위한 도면이다.
도 2는 종래 발명에 따라 1,2차측 권선을 여러 차례 적층하여 감는 것을 보여주는 도면이다.
도 3은 본 발명에 따른 1,2차측 권선을 교번하여 적층하는 것을 보여주는 개념도이다.
도 4는 본 발명의 일실시예에 따른 누설자속저감 권선법을 이용한 공진형 전력변환기용 변압기의 권선법을 보여주는 도면이다.
도 5는 본 발명의 일실시예에 따른 공진형 Half Bridge DC to DC 컨버터를 보여주는 도면이다.
도 6은 본 발명의 일실시예에 따른 공진형 Full Bridge DC to DC 컨버터를 보여주는 도면이다.1 is a view for explaining a resonant frequency and the like according to the prior art.
FIG. 2 is a view showing winding of the primary and secondary windings several times in accordance with the conventional invention.
FIG. 3 is a conceptual diagram showing the alternate lamination of primary and secondary windings according to the present invention.
4 is a view showing a winding method of a transformer for a resonance type power converter using a leakage magnetic flux reduction winding method according to an embodiment of the present invention.
5 is a view illustrating a resonant half bridge DC to DC converter according to an embodiment of the present invention.
6 is a view illustrating a resonant full bridge DC to DC converter according to an embodiment of the present invention.

본 발명을 충분히 이해하기 위해서 본 발명의 바람직한 실시예를 첨부 도면을 참조하여 설명한다. 본 발명의 실시예는 여러 가지 형태로 변형될 수 있으며, 본 발명의 범위가 아래에서 상세히 설명하는 실시예로 한정되는 것으로 해석되어서는 안 된다. 본 실시예는 당업계에서 평균적인 지식을 가진 자에게 본 발명을 보다 완전하게 설명하기 위하여 제공되는 것이다. 따라서 도면에서의 요소의 형상 등은 보다 명확한 설명을 강조하기 위해서 과장되어 표현될 수 있다. 각 도면에서 동일한 부재는 동일한 참조부호로 도시한 경우가 있음을 유의하여야 한다. 또한, 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 공지 기능 및 구성에 대한 상세한 기술은 생략된다.
For a better understanding of the present invention, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. The embodiments of the present invention may be modified into various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. The present embodiments are provided to enable those skilled in the art to more fully understand the present invention. Therefore, the shapes and the like of the elements in the drawings can be exaggeratedly expressed to emphasize a clearer description. It should be noted that in the drawings, the same members are denoted by the same reference numerals. Further, detailed descriptions of well-known functions and configurations that may be unnecessarily obscured by the gist of the present invention are omitted.

도 3에서 보는 바와 같이, 본 발명은 공진형 전력변환기의 공진을 위해 변압기(10)의 1차측 권선(12)과 2차측 권선(14)이 서로 교번하여 적층되도록 1차측과 2차측 권선(12, 14)을 대향시켜 접착한 후 철심 코어(19)에 두루마리 형상으로 돌려 감는다.3, in order to resonate the resonant power converter, the primary winding 12 and the secondary winding 12 are alternately stacked so that the primary winding 12 and the secondary winding 14 of the transformer 10 are alternately stacked. And 14 are opposite to each other, and wound round the core core 19 in a rolled shape.

즉, 도 4에서 보는 바와 같이 본 발명의 일실시예로서, 공진형 전력변환기의 공진을 위해 동일한 형상의 1차측과 2차측 권선(12, 14)을 적층 또는 상호 대향하도록 적층한 후 두루마리 형상으로 돌려 감는다.That is, as shown in FIG. 4, as an embodiment of the present invention, primary and secondary windings 12 and 14 of the same shape are laminated or mutually opposed for resonance of the resonant power converter, Turn back.

전체적으로 동판으로 이루어진 상기 1차측과 2차측 권선(12, 14)은 각각 절연시킨다.The primary side and secondary side windings 12 and 14, which are made of a copper plate as a whole, are insulated from each other.

상기 권선들(12, 14)은 평판 권선으로서, 예를 들어 A4 용지 사이즈의 절연된 동판 두 장을 겹쳐 사용할 수 있다.The windings 12 and 14 are flat-plate windings, for example, two sheets of insulated copper foil of A4 paper size can be used in a superimposed manner.

따라서 1차측 권선(12)과 2차측 권선(14)이 서로 교번하여 적층되도록 제작하여, 1차측과 2차측 권선에서 발생되는 누설자속(화살표 표시)이 서로 상쇄되어 변압기의 누설자속을 현저하게 줄일 수 있다.
Accordingly, the primary windings 12 and the secondary windings 14 are alternately laminated so that the leakage magnetic fluxes (arrows) generated in the primary winding and the secondary winding cancel each other out so that the leakage magnetic flux of the transformer is remarkably reduced .

한편, 도 5의 본 발명의 일실시예에 따른 공진형 Half Bridge DC to DC 컨버터를 보면, IGBT(22; insulated gate bipolar mode transistor)와 다이오드(26) 등으로 이루어져 있으며, 스플릿 캐패시터(24)와 변압기(10)의 누설 인덕턴스와 공진을 발생시켜 교번자계를 만드는 장치로써, 본 발명에 따라 변압기(10)의 누설인덕턴스를 감소시키는 경우 스플릿 캐패시터(24)의 양단 전압 변동을 최소화 시킬 수 있다.5, the resonant type half bridge DC to DC converter includes an insulated gate bipolar mode transistor (IGBT) 22 and a diode 26. The split capacitor 24, The leakage inductance and resonance of the transformer 10 are generated to generate an alternating magnetic field. When the leakage inductance of the transformer 10 is reduced according to the present invention, the variation of voltage across the split capacitor 24 can be minimized.

도 6의 본 발명의 일실시예에 따른 공진형 Full Bridge DC to DC 컨버터를 보면, IGBT(22')와 다이오드(26')와 공진 캐패시터(24') 등으로 이루어져 있으며, 본 발명에 따라 변압기(10')의 누설인덕턴스를 감소시키는 경우 스위칭 주파수를 높일 수 있거나 또는 공진 커패시터에 충전되는 전류량을 감소시켜 커패시터 전압레벨을 낮출 수 있다.The resonant full bridge DC to DC converter according to an embodiment of the present invention shown in FIG. 6 includes an IGBT 22 ', a diode 26' and a resonant capacitor 24 ' The switching frequency can be increased or the amount of current charged in the resonant capacitor can be reduced to lower the capacitor voltage level when the leakage inductance of the capacitor 10 'is reduced.

다시 말해, 본 발명은 공진형 Half Bridge DC to DC 컨버터에서 누설 인덕턴스와 공진을 발생시켜 교번자계를 생성시키기 위하여, 상기 변압기의 누설인덕턴스를 기준치(일정치) 보다 감소시키는 경우 상기 스플릿 캐패시터의 양단 전압 변동을 종래 보다 감소시키거나, 공진형 Full Bridge DC to DC 컨버터에서, 상기 변압기의 누설인덕턴스를 기준치 보다 감소시키는 경우 스위칭 주파수를 종래 보다 높일 수 있거나 또는 공진 커패시터에 충전되는 전류량을 감소시켜 커패시터 전압레벨을 낮출 수 있다. 여기에서 기준치는 종래 발명을 기준으로 한 수치이다.In other words, in order to generate an alternating magnetic field by generating leakage inductance and resonance in a resonant type half bridge DC to DC converter, when the leakage inductance of the transformer is reduced from a reference value (constant value), both ends of the split capacitor In a resonant full bridge DC to DC converter, if the leakage inductance of the transformer is reduced below the reference value, the switching frequency can be made higher than in the past, or the amount of current charged in the resonant capacitor can be reduced to reduce the capacitor voltage level . Here, the reference value is based on the conventional invention.

따라서, 도 5와 도 6에서 보는 바와 같이 본 발명은 공진현상과 관련된 커패시터나 인덕터의 파라미터가 작을 경우 공진주파수를 상승시켜 시스템을 소형화할 수 있다.
Therefore, as shown in FIG. 5 and FIG. 6, when the parameters of the capacitor and the inductor related to the resonance phenomenon are small, the resonance frequency can be increased to miniaturize the system.

이상에서 설명된 본 발명의 누설자속저감 권선법을 이용한 공진형 전력변환기용 변압기의 실시예는 예시적인 것에 불과하며, 본 발명이 속한 기술분야의 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 잘 알 수 있을 것이다. The embodiments of the transformer for a resonance type power converter using the leakage flux reduction winding method of the present invention described above are merely illustrative and those skilled in the art will appreciate that various modifications and equivalent It will be appreciated that other embodiments are possible.

그러므로 본 발명은 상기의 상세한 설명에서 언급되는 형태로만 한정되는 것은 아님을 잘 이해할 수 있을 것이다. 따라서 본 발명의 진정한 기술적 보호 범위는 첨부된 특허청구범위의 기술적 사상에 의해 정해져야 할 것이다. 또한, 본 발명은 첨부된 청구범위에 의해 정의되는 본 발명의 정신과 그 범위 내에 있는 모든 변형물과 균등물 및 대체물을 포함하는 것으로 이해되어야 한다.Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

10, 10' : 변압기
12 : 1차측 권선
14 : 2차측 권선
19 : 코어
22, 22' : IGBT
24 : Split Capacitor(스플릿 캐패시터)
24' : resonant capacitor(공진 캐패시터)
26, 26' : (다이오드)10, 10 ': Transformer
12: Primary winding
14: Secondary winding
19: core
22, 22 ': IGBT
24: Split capacitor (Split capacitor)
24 ': resonant capacitor (resonant capacitor)
26, 26 ': (diode)

Claims (4)

공진형 전력변환기용 변압기에 있어서, 1차측 권선과 2차측 권선을 각각 절연시킨 후 1차측 권선과 2차측 권선이 서로 포개지도록 교대로 배치되되, 홀수층에는 1차측 권선이 배치되는 한편 짝수층에는 2차측 권선이 배치되고, 상기 1차측 권선과 2차측 권선이 변압기 코어를 중심축으로 하여 변압기 권선수 만큼 돌려 감아 이루어진 것을 특징으로 하는 누설자속저감 권선법을 이용한 공진형 전력변환기용 변압기.
In a transformer for a resonant power converter, primary winding and secondary winding are insulated from each other, and the primary winding and the secondary winding are alternately stacked. The primary winding is disposed on the odd-numbered layer and the primary winding is disposed on the even- Wherein the primary side winding and the secondary side winding are wound around the transformer core as a center axis so as to be wound around the transformer winding.
제1항에 있어서,
상기 권선은 평판 권선인 것을 특징으로 하는 누설자속저감 권선법을 이용한 공진형 전력변환기용 변압기.The method according to claim 1,
Wherein the winding is a flat plate winding. The transformer for a resonance type power converter using the leakage magnetic flux reduction winding method. 제1항에 있어서,
상기 공진형 전력변환기용 변압기는,
IGBT와 다이오드 및 스플릿 캐패시터로 이루어진 공진형 Half Bridge DC to DC 컨버터에서, 누설 인덕턴스와 스플릿 캐패시터간에 공진 전류를 발생시켜 변압기에 교번자계 발생시, 변압기의 누설인덕턴스가 크고, 공진전류가 큰 경우 상기 스플릿 캐패시터에 전하를 축적시켜 스플릿 캐패시터 양단 전압 변동이 커지는 것을 감소시키도록 이루어진 것을 특징으로 하는, 누설자속저감 권선법을 이용한 공진형 전력변환기용 변압기.The method according to claim 1,
The transformer for a resonant power converter includes:
In a resonant half bridge DC to DC converter composed of an IGBT, a diode, and a split capacitor, when a resonance current is generated between a leakage inductance and a split capacitor to generate an alternating magnetic field in the transformer, if the leakage inductance of the transformer is large and the resonance current is large, So that the variation of the voltage across the split capacitor is reduced. The transformer for resonance type power converter using the leakage magnetic flux reduction winding method. 제1항에 있어서,
상기 공진형 전력변환기용 변압기는,
IGBT와 다이오드 및 공진 캐패시터로 이루어진 공진형 Full Bridge DC to DC 컨버터에서, 상기 변압기의 누설인덕턴스를 기준치 보다 감소시키는 경우 스위칭 주파수를 높일 수 있거나 또는 공진 커패시터에 충전되는 전류량을 감소시켜 커패시터 전압레벨을 낮추도록 이루어진 것을 특징으로 하는, 누설자속저감 권선법을 이용한 공진형 전력변환기용 변압기.The method according to claim 1,
The transformer for a resonant power converter includes:
In a resonant full bridge DC to DC converter comprising an IGBT, a diode and a resonant capacitor, when the leakage inductance of the transformer is reduced below a reference value, the switching frequency can be increased or the amount of current charged in the resonant capacitor is reduced to lower the capacitor voltage level And a transformer for a resonance type power converter using a leakage magnetic flux reduction winding method.
KR1020140012315A 2014-02-03 2014-02-03 Resonant power transformer with the reduced leakage inductance using new winding method KR101545735B1 (en)

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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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Publication number Priority date Publication date Assignee Title
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001103751A (en) 1999-09-30 2001-04-13 Sony Corp Switching power circuit and isolation converter 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

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0888906A (en) * 1994-09-14 1996-04-02 Hitachi Ltd Charger for electric railcar
TWI343586B (en) * 2006-07-21 2011-06-11 Delta Electronics Inc Power source transforming device and transformer thereof
KR20090056197A (en) * 2007-11-30 2009-06-03 한국전기연구원 Step-down high frequency transformer, its manufacturing method and dc-dc converter using this
CN101478226B (en) * 2008-05-30 2012-07-25 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
EP2299572A1 (en) * 2009-09-21 2011-03-23 SMA Solar Technology AG Starting a DC/DC converter with high-frequency transformer
JP2012028642A (en) * 2010-07-26 2012-02-09 Toshiba Corp Transformer
CN102055348A (en) * 2010-12-24 2011-05-11 东南大学 Voltage reducing power electronic transformer for distribution network
JP5701120B2 (en) * 2011-03-23 2015-04-15 三菱電機株式会社 Magnetic shielding device for transformer
JP2013062399A (en) * 2011-09-14 2013-04-04 Minebea Co Ltd Transformer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001103751A (en) 1999-09-30 2001-04-13 Sony Corp Switching power circuit and isolation converter 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

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
공진형 DC/DC 컨버터를 이용한 자기부상열차용 보조전원장치 경량화 기술개발(2013년도 한국철도학회 춘계학술대회 논문집, 조정민 외3인, 페이지1115-1120, 2013.5월 발행)*
단일극성 펄스폭 변조 방식의 고효율 공진형 풀 브릿지 DC/DC 컨버터(한국정보기술학회지 제11권 제5호, 정강률 외2인, 페이지9-18, 2013.5월 발행)*

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