KR20120005689A - Collector device for electric vehicle with active cancellation of emf - Google Patents

Collector device for electric vehicle with active cancellation of emf Download PDF

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KR20120005689A
KR20120005689A KR1020100066274A KR20100066274A KR20120005689A KR 20120005689 A KR20120005689 A KR 20120005689A KR 1020100066274 A KR1020100066274 A KR 1020100066274A KR 20100066274 A KR20100066274 A KR 20100066274A KR 20120005689 A KR20120005689 A KR 20120005689A
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South Korea
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current collector
emf
current
coil
collector
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KR1020100066274A
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Korean (ko)
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KR101169035B1 (en
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서남표
조동호
조규형
장순흥
임춘택
허진
김윤호
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한국과학기술원
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
    • B60L5/005—Current collectors for power supply lines of electrically-propelled vehicles without mechanical contact between the collector and the power supply line
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/01—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for shielding from electromagnetic fields, i.e. structural association with shields
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/91—Electric vehicles
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

PURPOSE: A collector device for an electric vehicle with active cancellation of EMF is provided to prevent the rapid increase of the EMP by generating power from the current collector of a moving body. CONSTITUTION: In a collector device for an electric vehicle with active cancellation of EMF, a collection core(310) is separated from a power supply by a certain interval. Two collection coils(321,322) are installed in the collection core in a loop shape. An induction current is induced from a power supply unit and is flowed in the two collection coils. Two EMF active cancel coils(331,332) are connected to one end of each collection coil.

Description

ＥＭＦ 능동상쇄 기능을 구비하는 집전장치{COLLECTOR DEVICE FOR ELECTRIC VEHICLE WITH ACTIVE CANCELLATION OF EMF}COLLECTOR DEVICE FOR ELECTRIC VEHICLE WITH ACTIVE CANCELLATION OF EMF}

본 발명은 EMF 능동상쇄 기능을 구비하는 집전장치에 관한 것으로서, 더욱 상세하게는 2차 측의 집전코일과 반대 방향으로 집전코일을 되감아 주어 2차 코일에 흐르는 전류와 반대 방향으로 전류를 흘려 줌으로써 EMF를 감소시키는 능동차폐 기능을 포함하는 EMF 능동상쇄 기능을 구비하는 집전장치에 관한 것이다.The present invention relates to a current collector having an EMF active canceling function, and more particularly, by rewinding the current collector coil in a direction opposite to the current collector coil on the secondary side and flowing a current in a direction opposite to the current flowing in the secondary coil. The present invention relates to a current collector having an EMF active canceling function including an active shielding function to reduce the EMF.

주행중인 이동체에 자기유도방식으로 전력을 공급하는 급전선로는 급전장치만 동작시킬 경우 기준 측정 위치에서 측정하더라도 우수한 EMF 특성을 나타낸다. 그러나 집전장치를 배치하고 집전장치에서 소비전력을 발생시킬 경우 선로 주변에서의 EMF는 급격하게 증가된다. 이때 발생하는 EMF의 세기는 2차 측의 소비전류량에 비례해서 증가하게 되며 집전장치에서 부하에 전력을 전달해 줄 경우 집전장치 주변에서의 EMF가 매우 크게 나타나는 문제점이 있었다.A feeder line that supplies power to a moving vehicle in a self-guided manner exhibits excellent EMF characteristics even when the feeder is operated at the reference measurement position. However, when the current collector is arranged and power consumption is generated in the current collector, the EMF around the track increases rapidly. In this case, the intensity of the generated EMF increases in proportion to the amount of current consumption on the secondary side, and when the current collector delivers power to the load, there is a problem in that the EMF around the current collector is very large.

또한 1쌍의 집전코일을 1개의 능동상쇄코일만으로 상쇄할 경우 서로 위상이 맞지 않아 EMF가 제대로 상쇄되지 않는 문제점이 있었다.In addition, when canceling a pair of current collector coils with only one active offset coil, the phases do not coincide with each other, and thus there is a problem in that the EMF is not canceled properly.

본 발명은 이와 같은 문제점을 해결하기 위해 창안된 것으로서, 급전장치의 동작과 함께 이동체의 집전장치에서 소비전력을 발생시켜, 집전장치에서 부하에 전력을 전달해 주더라도 EMF가 급격하게 증가하는 것을 막을 수 있게 되어, 더욱 안전하고 효율적인 이동체의 운행을 가능하게 하는데 그 목적이 있다.The present invention was devised to solve such a problem, and generates power consumption in the current collector of the moving body together with the operation of the power feeding device, thereby preventing the EMF from rapidly increasing even if the current collector delivers power to the load. The purpose is to enable safer and more efficient operation of the moving object.

또한 1쌍의 집전코일 각각에 별개의 EMF 능동상쇄코일을 감아주어 각각 위상에 맞게 독립적으로 EMF 상쇄가 이루어지도록 함으로써 EMF 상쇄효과를 최대화되도록 하는데 그 목적이 있다.In addition, the purpose is to maximize the EMF offset effect by winding a separate EMF active offset coil to each of the pair of current collector coil so that the EMF offset is made independently according to the phase.

이와 같은 목적을 달성하기 위하여 본 발명에 따른 이동체의 진행경로를 따라 설치된 급전장치로부터 자기유도방식으로 전력을 공급받으면서 EMF 능동상쇄 기능을 갖는, 이동체에 설치된 집전장치는, 이동체 하단에 급전장치와 일정간격 이격되어 설치되는 집전코어; 급전장치로부터 유도된 유도전류가 흐르도록 상기 집전코어에 루프형태로 설치된 2 개의 집전코일; 및 상기 각 집전코일의 일단에 연결되어 상기 각 집전코일 주위에 그 집전코일과 반대방향의 전류가 흐르도록 감은 2 개의 EMF 능동상쇄코일을 포함한다.In order to achieve the above object, a current collector installed on a mobile body having an EMF active offset function while being supplied with power in a self-guided manner from a power feeding device installed along a traveling path of the mobile body according to the present invention, a power supply device at a lower portion of the mobile body and a constant Current collector cores spaced apart from each other; Two current collecting coils installed in a loop shape on the current collecting core so that an induced current derived from a power feeding device flows; And two EMF active offset coils connected to one end of each current collector coil and wound around each current collector coil so that a current in a direction opposite to the current collector coil flows.

상기 집전코어는, 평판형 구조일 수 있다.The current collector core may have a flat plate structure.

상기 집전코어는, 평판형 구조 위에 양측면 또는 중앙에 평판과 수직한 코어 벽(wall)을 더 구비할 수 있다.The current collecting core may further include a core wall perpendicular to the flat plate on both sides or the center of the flat plate structure.

상기 집전코일은, 상기 집전코어 아래에 설치될 수 있다.The current collector coil may be installed under the current collector core.

상기 EMF 능동상쇄코일은, 상기 집전코어 위에 설치될 수 있다.The EMF active offset coil may be installed on the current collector core.

상기 EMF 능동상쇄 기능을 구비하는 집전장치는, 상기 EMF 능동상쇄코일 위에 소정의 폭을 가지는 측면 집전코어를 더 포함할 수 있다.The current collector having the EMF active canceling function may further include a side current collector core having a predetermined width on the EMF active canceling coil.

상기 급전장치가 이동체 진행경로를 따라 일정한 간격을 두고 배치된 복수 개의 자극을 구비하는 경우 상기 집전장치는, 상기 2 개의 집전코일이 상기 이동체의 전후방향으로 배치되도록 이동체에 설치될 수 있다.When the power feeding device includes a plurality of magnetic poles disposed at regular intervals along a moving path of the moving body, the current collecting device may be installed in the moving body such that the two current collecting coils are disposed in the front and rear directions of the moving body.

상기 급전장치가 이동체 진행경로를 따라 서로 나란하게 연장되는 복수 개의 자극을 구비하는 경우, 상기 집전장치는, 상기 2 개의 집전코일이 상기 이동체의 좌우방향으로 배치되도록 이동체에 설치될 수 있다.When the power feeding device has a plurality of magnetic poles extending in parallel with each other along a moving path of the moving body, the current collecting device may be installed in the moving body such that the two current collecting coils are disposed in the left and right directions of the moving body.

상기 EMF 능동상쇄 기능을 구비하는 집전장치는, EMF 감쇄를 위해 상기 집전코어, 상기 집전코일 및 상기 EMF 능동상쇄코일 전체를 덮는 도체판을 더 포함할 수 있다.The current collector having the EMF active canceling function may further include a conductor plate covering the current collector core, the current collector coil, and the entire EMF active offset coil to attenuate the EMF.

상기 집전코일은, 이동체에 설치된 배터리와 연결되어 이동체의 주행 중에 상기 배터리를 충전하기 위한 전원을 공급할 수 있다.The current collector coil may be connected to a battery installed in the mobile body to supply power for charging the battery while the mobile body is traveling.

본 발명의 다른 측면에 따르면, 이동체에 설치된 집전장치에서 EMF 상쇄코일을 이용하여 EMF를 차폐하는 장치는, 급전장치로부터 유도된 유도전류가 흐르는 2 개의 집전코일; 상기 각 집전코일의 일단에 연결되어 상기 각 집전코일 주위에 그 집전코일과 반대방향의 전류가 흐르도록 감은 2 개의 EMF 능동상쇄코일; 및 상기 각 집전코일 및 EMF 능동상쇄코일에 흐르는 전류를 직류전류로 변환시키는 2 개의 정류기를 포함한다.According to another aspect of the invention, the device for shielding the EMF by using the EMF offset coil in the current collector installed on the moving body, two current collector coils through which induced current flows from the power supply device; Two EMF active offset coils connected to one end of each current collector coil and wound around the current collector coils so that a current in a direction opposite to the current collector coils flows; And two rectifiers for converting the current flowing through each current collector coil and the EMF active canceling coil into a DC current.

본 발명에 의하면, 급전장치의 동작과 함께 이동체의 집전장치에서 소비전력을 발생시켜, 집전장치에서 부하에 전력을 전달해 주더라도 EMF가 급격하게 증가하는 것을 막을 수 있게 되어, 더욱 안전하고 효율적인 이동체의 운행을 가능하게 하는데 그 목적이 있다.According to the present invention, it is possible to prevent the sudden increase of the EMF even when the power supply device is operated to generate power consumption in the current collector of the mobile body and deliver power to the load from the current collector. Its purpose is to enable operation.

또한 1쌍의 집전코일 각각에 별개의 EMF 능동상쇄코일을 감아주어 각각 위상에 맞게 독립적으로 EMF 상쇄가 이루어지도록 함으로써 EMF 상쇄효과를 최대화되도록 하는 효과가 있다.In addition, a separate EMF active offset coil is wound around each of the pair of current collector coils so that the EMF offset can be independently performed according to the phase, thereby maximizing the EMF offset effect.

도 1은 이동체에 자기유도 방식으로 전력을 공급하는 듀얼타입 급전장치와 이로부터 집전하는 이동체에 설치된 집전장치의 평면도 및, 급전장치의 정면도.
도 2는 이동체에 자기유도 방식으로 전력을 공급하는 I자형 급전장치와 이로부터 집전하는 이동체에 설치된 집전장치의 평면도 및, 급전장치의 정면도.
도 3은 집전장치에서 EMF 능동상쇄코일을 이용하여 EMF를 감소시키는 방식을 구현한 일 실시예에 대한 사시도 및 정면도.
도 4는 집전장치에서 EMF 능동상쇄코일을 이용하여 EMF를 감소시키는 방식을 구현한 다른 실시예에 대한 사시도 및 정면도.1 is a plan view of a dual type power feeding device for supplying power to a moving body in a self-inducing manner and a current collecting device installed on the moving body collecting current therefrom, and a front view of the power feeding device.
2 is a plan view of an I-shaped power feeding device for supplying electric power to the moving body in a magnetic induction manner and a current collecting device installed on the moving object collecting current therefrom, and a front view of the power feeding device;
3 is a perspective view and a front view of an embodiment implementing a method of reducing the EMF by using the EMF active offset coil in the current collector.
4 is a perspective view and a front view of another embodiment of implementing a method of reducing the EMF using the EMF active offset coil in the current collector.

이하 첨부된 도면을 참조로 본 발명의 바람직한 실시 예를 상세히 설명하기로 한다. 이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다. 따라서, 본 명세서에 기재된 실시예와 도면에 도시된 구성은 본 발명의 가장 바람직한 일 실시예에 불과할 뿐이고 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형예들이 있을 수 있음을 이해하여야 한다.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

도 1은 이동체에 자기유도 방식으로 전력을 공급하는 듀얼타입 급전장치(110)와 이로부터 집전하는 이동체에 설치된 집전장치(120)의 평면도(10) 및, 급전장치(110)의 정면도(20)이다.1 is a plan view 10 of a dual type power feeding device 110 for supplying electric power to a moving body in a magnetically inductive manner, a current collecting device 120 installed on a moving object that collects therefrom, and a front view 20 of the power feeding device 110. )to be.

급전장치(110)는 온라인 전기자동차의 경우 도로에 매설되어 설치되나, 지상 이동체의 경우는 지상 레일을 따라 설치될 수 있고, 수중 이동체의 경우는 수중 레일을 따라 설치될 수도 있다. 본 도면의 경우는 급전장치(110)가 도로(21)에 매설된 경우의 실시예를 나타낸다.The power feeding device 110 is installed on the road in the case of an on-line electric vehicle, but in the case of the ground moving body may be installed along the ground rail, in the case of the underwater moving body may be installed along the underwater rail. In the case of this figure, an example in which the power feeding device 110 is embedded in the road 21 is shown.

듀얼타입이란 서로 반대방향의 전류가 흐르는 급전선(111,112)을 중심으로 두 쌍의 자극쌍(114와 115, 115와 116)에서 각각 자기장이 발생되도록 한 구조로서, 이동체 진행경로를 따라 서로 나란하게 연장되는 복수 개의 자극(114,115,116)을 구비하는 급전코어(113) 및, 전류가 흐름으로써 급전코어(113)의 자극(114,115,116)을 통하여 자기장을 발생시키기 위한 급전선(111,112)을 구비한다. 듀얼타입의 경우에는 전술한 바와 같이 두 개의 급전선(111,112)에 반대방향의 전류가 흐르게 된다. 이하에서 '급전코어'라는 용어는, 본 도면의 급전코어(113) 및 자극(114,115,116)을 일체로 하여 칭하는 용어로 쓰기로 한다.The dual type is a structure in which magnetic fields are generated in two pairs of magnetic pole pairs 114, 115, 115, and 116, respectively, centering on feed lines 111 and 112 in which currents flow in opposite directions, and extend parallel to each other along a moving path. The power supply core 113 includes a plurality of magnetic poles 114, 115, and 116, and a feed line 111, 112 for generating a magnetic field through the magnetic poles 114, 115, and 116 of the power supply core 113 as a current flows. In the dual type, as described above, the current flows in the opposite direction to the two feed lines 111 and 112. Hereinafter, the term 'feeding core' is used as a term that refers to the feeding core 113 and the magnetic poles 114, 115, and 116 integrally in this drawing.

집전장치(120)는 이동체 하단에 급전장치(110)와 일정간격 이격되어 설치된다. 평판형의 집전코어(123)와, 집전코어(123) 아래에 루프형태로 감겨지며 이동체의 배터리와 연결되어 전기자동차의 주행 중에 상기 배터리를 충전하기 위한 전원을 공급하는 집전코일(121, 122), 집전 중 발생하는 EMF를 상쇄하기 위해 상기 집전코일(121,122) 주위에 상기 집전코일(121,122)과 반대 방향의 전류가 흐르도록 감겨진 EMF 능동상쇄코일(124,125)을 포함한다. 이와 같이 두 개의 집전코일 루프(121,122)의 전류방향과 반대방향의 전류를 차폐코일(124,125)에 흐르게 하는 능동상쇄 방식으로 집전 중 발생하는 EMF를 감소시키게 된다.The current collector 120 is installed at a lower distance from the power supply device 110 at a lower portion of the movable body. The current collector coils 123 and 122 wound in a loop shape under the flat current collector core 123 and the current collector core 123 and connected to a battery of a moving body to supply power for charging the battery while the electric vehicle is running. The EMF active offset coils 124 and 125 are wound around current collector coils 121 and 122 so as to cancel an EMF generated during current collection. As described above, the EMF generated during the current collection is reduced by an active cancellation method in which currents in the opposite directions to the current directions of the two current coil loops 121 and 122 flow through the shielding coils 124 and 125.

집전코어(123)는, 평판형 구조 위에 양측면 또는 중앙에 평판과 수직한 코어 벽(wall)을 더 구비할 수도 있다.The current collector core 123 may further include a core wall perpendicular to the plate on both sides or in the center on the plate-like structure.

듀얼타입 급전장치가 설치된 이동경로를 주행하는 이동체에 있어서, 상기 2 개의 집전코일은 도 1과 같이 상기 이동체의 좌우방향으로 배치되도록 이동체에 설치되게 된다.
In a moving body traveling a moving path provided with a dual-type power feeding device, the two current collector coils are installed in the moving body to be arranged in the left and right directions of the moving body as shown in FIG.

도 2는 이동체에 자기유도 방식으로 전력을 공급하는 I자형 급전장치(210)와 이로부터 집전하는 이동체에 설치된 집전장치(220)의 평면도(30) 및, 급전장치(210)의 정면도(40)이다.2 is a plan view 30 of an I-shaped power feeding device 210 for supplying electric power in a magnetically inductive manner to a moving object and a current collecting device 220 installed on the moving object that collects therefrom, and a front view 40 of the power feeding device 210. )to be.

'I자형'이라는 명칭을 사용한 이유는 급전코어(210)를 이동체 진행경로에 수직인 단면으로 자른 단면을 나타내는 정면도의 형상이 'I'자형이기 때문이다. 정면도(40)를 참조하면, 정면도(210)에서 급전코어(자극)(212)의 단면 형태가 'I'자형인 것이 명백히 도시되어 있다.The reason for using the name 'I-shape' is that the shape of the front view showing the cross section of the feed core 210 cut into a cross section perpendicular to the moving path of the moving object is' I'-shaped. Referring to the front view 40, it is clearly shown in the front view 210 that the cross-sectional shape of the feed core (stimulus) 212 is 'I' shaped.

상기 급전장치(210)는 이동체 진행경로를 따라 일정한 간격을 두고 배치된 복수 개의 자극(magnetic pole)(212)을 구비하며, 각 자극(212)에 자력선의 N극, S극이 교대로 발생할 수 있도록 자극(212) 주위에 급전선(211)이 배치된다. 이를 위해 두 급전선(211)에는 서로 반대방향의 전류가 흐르게 된다.The power supply device 210 includes a plurality of magnetic poles 212 disposed at regular intervals along a moving path of the moving body, and the N poles and the S poles of the magnetic force lines may be alternately generated at each magnetic pole 212. The feed line 211 is disposed around the magnetic pole 212 so that it is. To this end, currents in opposite directions flow through the two feed lines 211.

이와 같이 하여 급전장치의 폭은 10cm 이하로 줄어들 수 있는데, 이렇게 하더라도 도로에 매설된 급전장치의 자극(212) 윗 단부와 차량하부에 설치된 집전장치(220) 사이의 간격, 즉 공극간격을 20cm 이상으로 하는데는 아무런 문제가 없다. 측면에서 보면 급전선의 가설방향이 도로 진행방향과 거의 같아서 급전선과 급전코어가 도로진행방향으로 거의 같이 매설되는 형태를 가진다(매설되는 급전장치의 경우의 실시예). 그런데, 이렇게 급전장치의 폭이 줄어들더라도 전달되는 전력이 급전선로의 폭에 정비례하여 감소하지는 않는다. 급전선로의 면적 감소보다 전력감소가 작다면 그만큼 비용 대 효과의 측면에서는 유리해진다.In this way, the width of the power feeding device may be reduced to 10 cm or less. Even if this occurs, the gap between the upper end of the pole 212 of the power feeding device embedded in the road and the current collector 220 installed in the lower part of the vehicle, that is, the gap gap is 20 cm or more. There is no problem in doing so. When viewed from the side, the construction direction of the feeder line is almost the same as the road progression direction, so that the feeder line and the feeder core are almost embedded in the road progression direction (an embodiment of the embedding feeder). However, even if the width of the feeder is reduced in this way, the power delivered is not directly proportional to the width of the feedline. If the power reduction is smaller than the area of the feeder line, it is advantageous in terms of cost-effectiveness.

본 도면의 경우는 I자형 집전장치에서 자극(212)의 면적을 넓히기 위해 자극(212)을 이동체 진행방향으로 길게 한 경우의 실시예를 나타내는 도면이다. 이렇게 하면 급전장치(210)에서 나온 자속이 공극간격의 2배 이상 넓은 집전모듈의 폭에 의해 집속이 되어 자기회로 저항이 줄어들게 된다. 즉, 급전장치의 폭(215)이 좁더라도 도로진행방향으로 자극의 길이를 길게 해주면 원활히 전력전달이 이루어질 수 있다.In the case of this figure, it is an example of the case where the magnetic pole 212 is extended in the moving direction of the moving body in order to increase the area of the magnetic pole 212 in the I-shaped current collector. In this case, the magnetic flux emitted from the power supply device 210 is focused by the width of the current collecting module that is two times larger than the gap, thereby reducing the magnetic circuit resistance. That is, even if the width 215 of the power feeding device is narrow, the length of the magnetic pole in the road progression direction can be smoothly delivered to the power.

추가적으로 전력전달 효율을 더 높이기 위해 필요한 경우 급전장치의 폭을 10~20cm 정도로 다소 더 넓힐 수도 있다. 하지만, 앞서 언급한 것처럼 급전장치의 폭을 넓히는 데 따른 전력전달 용량 증가는 크지 않으며, 코어의 포화 자속밀도를 낮추는데 유효할 뿐이다.In addition, the feeder may be slightly wider, perhaps 10-20 cm, if necessary to increase power delivery efficiency. However, as mentioned above, the increase in power transfer capacity due to the widening of the feeder is not significant, and is only effective for reducing the saturation magnetic flux density of the core.

집전장치(220)는 도 1을 참조하여 전술한 바와 같이, 이동체 하단에 급전장치(210)와 일정간격 이격되어 설치된다. 평판형의 집전코어(223)와, 집전코어(223) 아래에 루프형태로 감겨지며 이동체의 배터리와 연결되어 전기자동차의 주행 중에 상기 배터리를 충전하기 위한 전원을 공급하는 집전코일(221,222), 집전 중 발생하는 EMF를 상쇄하기 위해 상기 집전코일(221,222) 주위에 상기 집전코일(221,222)과 반대 방향의 전류가 흐르도록 감겨진 EMF 능동상쇄코일(224,225)을 포함한다. 이와 같이 두 개의 집전코일 루프(221,222)의 전류방향과 반대방향의 전류를 EMF 능동상쇄코일(224,225)에 흐르게 하는 능동상쇄 방식으로 집전 중 발생하는 EMF를 감소시키게 된다.As described above with reference to FIG. 1, the current collector 220 is spaced apart from the power feeding device 210 by a predetermined interval at a lower end of the movable body. The current collector coils 221 and 222 which are wound in a loop shape under the flat current collector core 223 and the current collector core 223 and are connected to the battery of the moving body to supply power for charging the battery while the electric vehicle is running. The EMF active offset coils 224 and 225 are wound around the current collector coils 221 and 222 so as to cancel an EMF. As described above, the EMF generated during the current collection is reduced in an active offset scheme in which currents in the opposite directions to the current directions of the two current coil loops 221 and 222 flow through the EMF active offset coils 224 and 225.

집전코어(223)는, 평판형 구조 위에 양측면 또는 중앙에 평판과 수직한 코어 벽(wall)을 더 구비할 수도 있다.The current collector core 223 may further include a core wall perpendicular to the plate on both sides or in the center on the plate-like structure.

I형 급전장치가 설치된 이동경로를 주행하는 이동체는, 상기 2 개의 집전코일이 도 2와 같이 상기 이동체의 전후방향으로 배치되도록 이동체에 설치되게 된다.
The movable body traveling along the movement path provided with the I-type power feeding device is installed in the movable body such that the two current collector coils are arranged in the front-back direction of the movable body as shown in FIG.

도 3은 집전장치에서 EMF 능동상쇄코일을 이용하여 EMF를 감소시키는 방식을 구현한 일 실시예에 대한 사시도(50) 및 정면도(60)이다.3 is a perspective view 50 and a front view 60 of an embodiment in which the EMF is reduced by using the EMF active offset coil in the current collector.

집전코어(310) 아래에 두 집전코일(321,322)이 설치되어 있고 각 집전코일 일단에 연결되어 상기 집전코일에서 발생하는 EMF를 상쇄시키는 방향으로 집전코일 주위를 감고 있는 EMF 능동상쇄코일(331,332)이 도시되어 있다. 상기 각 집전코일(321,322) 및 EMF 능동상쇄코일(331,332)에 흐르는 전류를 직류전류로 변환시키는 2 개의 정류기(341,342)도 도시되어 있다.Two current collector coils 321 and 322 are installed below the current collector core 310 and are connected to one end of each current collector coil, and the EMF active offset coils 331 and 332 are wound around the current collector coil in a direction to cancel the EMF generated from the current collector coils. Is shown. Also shown are two rectifiers 341 and 342 for converting the currents flowing through the current collector coils 321 and 322 and the EMF active offset coils 331 and 332 into direct current.

집전코일(321,322)과 EMF 능동상쇄코일(331,332)의 턴수비는 코일의 구조 및 형상에 따라 적절하게 정해질 수 있다. 집전출력에 영향을 주지 않는 범위 내에서 EMF를 최대한 감소시키도록 턴수비를 정하는 것이 바람직하다.The turn ratio of the current collector coils 321 and 322 and the EMF active cancellation coils 331 and 332 may be appropriately determined according to the structure and shape of the coil. It is desirable to set the turn ratio so that the EMF is reduced as much as possible without affecting the current output.

1쌍의 집전코일을 1개의 EMF 능동상쇄코일만으로 상쇄할 경우, 양 집전코일에 흐르는 위상이 다르게 되면, 서로의 위상이 맞지 않아 EMF가 제대로 상쇄되지 않게 된다. 이에 따라 본 발명에서는 도 3과 같이 1쌍의 집전코일(321,322) 각각에 별개의 EMF 능동상쇄코일(331,332)을 감아주어 각각 위상에 맞게 독립적으로 EMF 상쇄가 이루어지도록 함으로써 EMF 상쇄효과를 최대화되도록 하였다.When a pair of current collector coils are canceled by only one EMF active canceling coil, if the phases flowing in both current collector coils are different, the phases of the current collectors are not matched with each other and the EMF is not canceled properly. Accordingly, in the present invention, as shown in FIG. 3, the EMF active offset coils 331 and 332 are wound around each of the pair of current collector coils 321 and 322 so that the EMF offsets are independently performed according to the phases. .

또한 EMF 능동상쇄코일(331,332)이 집전코어(310)의 밑을 지나면 유기되는 전압이 상쇄되어 출력전압이 낮아지지만, 정면도(60)와 같이 EMF 능동상쇄코일(331,332)이 집전코어(310)의 위를 지나도록 하면 전압강하가 거의 발생하지 않는 효과가 있게 된다.In addition, when the EMF active offset coils 331 and 332 pass under the current collector core 310, the induced voltage is canceled to lower the output voltage. However, as shown in the front view 60, the EMF active offset coils 331 and 332 are current collector core 310. Passing above will have the effect that little voltage drop occurs.

이와 같이 구성한 후, 집전판 전체를 알미늄이나 구리 등의 도체판으로 덮으면 추가로 EMF가 감쇄하는 효과가 있다.
After this configuration, if the entire current collector plate is covered with a conductive plate such as aluminum or copper, the EMF further attenuates.

도 4는 집전장치에서 EMF 능동상쇄코일을 이용하여 EMF를 감소시키는 방식을 구현한 다른 실시예에 대한 사시도(70) 및 정면도(80)이다.4 is a perspective view 70 and a front view 80 of another embodiment of a method of reducing an EMF using an EMF active offset coil in a current collector.

도 3의 경우와 전체적으로 유사하나, EMF 능동상쇄코일(331,332)의 위에 측면 집전코어(350)를 소정의 폭(통상 10cm)으로 덮은 경우를 나타낸다. 이는 정면도(80)에서, 양측의 측면 집전코어(350)가 'in' 방향의 전류가 흐르는 EMF 능동상쇄코일(331,332)의 위에 위치한 상태로서 도시되어 있다. 이렇게 할 경우, EMF 상쇄효과가 20~30% 개선된다. 정면도(80)의 양측에 도시된 측면 집전코어(350)는, 편의상 사시도(70)의 절단선(71)에 의해 절단하여 약간 띄운 상태로 도시하였다.
Although similar to the case of FIG. 3, it shows the case where the side current collector core 350 covered the predetermined width (normally 10cm) on the EMF active offset coils 331 and 332. This is illustrated in the front view 80, the side current collector core 350 on both sides is located above the EMF active offset coils 331 and 332 through which current in the 'in' direction flows. Doing so improves the EMF offset effect by 20-30%. The side current collector cores 350 shown on both sides of the front view 80 are shown in a state of being slightly cut off by the cutting line 71 of the perspective view 70 for convenience.

110: 듀얼타입 급전장치
120: 듀얼타입 급전장치 경로 위를 주행하는 이동체에 설치된 집전장치
210: I형 급전장치
220: I형 급전장치 경로 위를 주행하는 이동체에 설치된 집전장치
310: 집전코어
321,322: 집전코일
331,332: EMF 능동상쇄코일
341,342: 정류기
350: 측면 집전코어110: dual type feeder
120: current collector installed on the moving object traveling on the path of the dual type feeder
210: I-type feeder
220: current collector installed on the moving object traveling on the I-type feeder path
310: Collector Core
321,322: current collector coil
331,332: EMF active offset coil
341,342: rectifier
350: side current collector core

Claims (11)

이동체의 진행경로를 따라 설치된 급전장치로부터 자기유도방식으로 전력을 공급받으면서 EMF 능동상쇄 기능을 갖는, 이동체에 설치된 집전장치로서,
이동체 하단에 급전장치와 일정간격 이격되어 설치되는 집전코어;
급전장치로부터 유도된 유도전류가 흐르도록 상기 집전코어에 루프형태로 설치된 2 개의 집전코일; 및
상기 각 집전코일의 일단에 연결되어 상기 각 집전코일 주위에 그 집전코일과 반대방향의 전류가 흐르도록 감은 2 개의 EMF 능동상쇄코일
을 포함하는, EMF 능동상쇄 기능을 구비하는 집전장치.A current collector installed in a moving body having an EMF active canceling function while receiving power in a magnetic induction manner from a power feeding device installed along a moving path of the moving body,
A current collector core installed at a lower distance from the power feeding device at the bottom of the movable body;
Two current collecting coils installed in a loop shape on the current collecting core so that an induced current derived from a power feeding device flows; And
Two EMF active offset coils connected to one end of each current collector coil and wound around each current collector coil so that a current in a direction opposite to the current collector coil flows.
Containing a current collector having an EMF active offset function. 청구항 1에 있어서,
상기 집전코어는,
평판형 구조인 것
을 특징으로 하는 EMF 능동상쇄 기능을 구비하는 집전장치.The method according to claim 1,
The current collector core,
Having a flat structure
Collector having an EMF active offset function, characterized in that. 청구항 1에 있어서,
상기 집전코어는,
평판형 구조 위에 양측면 또는 중앙에 평판과 수직한 코어 벽(wall)을 더 구비하는 것
을 특징으로 하는 EMF 능동상쇄 기능을 구비하는 집전장치.The method according to claim 1,
The current collector core,
Further comprising a core wall perpendicular to the plate on either side or center on the plate-like structure
Collector having an EMF active offset function, characterized in that. 청구항 1에 있어서,
상기 집전코일은,
상기 집전코어 아래에 설치되는 것
을 특징으로 하는 EMF 능동상쇄 기능을 구비하는 집전장치.The method according to claim 1,
The current collector coil,
To be installed below the current collector core
Collector having an EMF active offset function, characterized in that. 청구항 1에 있어서,
상기 EMF 능동상쇄코일은,
상기 집전코어 위에 설치되는 것
을 특징으로 하는 EMF 능동상쇄 기능을 구비하는 집전장치.The method according to claim 1,
The EMF active offset coil,
Being installed on the current collector core
Collector having an EMF active offset function, characterized in that. 청구항 1에 있어서,
상기 EMF 능동상쇄코일 위에 소정의 폭을 가지는 측면 집전코어를 더 포함하는 것
을 특징으로 하는 EMF 능동상쇄 기능을 구비하는 집전장치.The method according to claim 1,
It further comprises a side current collector core having a predetermined width on the EMF active offset coil
Collector having an EMF active offset function, characterized in that. 청구항 1에 있어서,
상기 급전장치가 이동체 진행경로를 따라 일정한 간격을 두고 배치된 복수 개의 자극을 구비하는 경우 상기 집전장치는,
상기 2 개의 집전코일이 상기 이동체의 전후방향으로 배치되도록 이동체에 설치되는 것
을 특징으로 하는 EMF 능동상쇄 기능을 구비하는 집전장치.The method according to claim 1,
When the power feeding device has a plurality of magnetic poles arranged at regular intervals along the moving path, the current collector is
The two current collector coils are installed in the movable body so as to be disposed in the front-rear direction of the movable body
Collector having an EMF active offset function, characterized in that. 청구항 1에 있어서,
상기 급전장치가 이동체 진행경로를 따라 서로 나란하게 연장되는 복수 개의 자극을 구비하는 경우, 상기 집전장치는,
상기 2 개의 집전코일이 상기 이동체의 좌우방향으로 배치되도록 이동체에 설치되는 것
을 특징으로 하는 EMF 능동상쇄 기능을 구비하는 집전장치.The method according to claim 1,
When the power feeding device includes a plurality of magnetic poles extending in parallel with each other along a moving path of the moving body,
The two current collector coils are installed in the movable body so as to be disposed in the left and right directions of the movable body
Collector having an EMF active offset function, characterized in that. 청구항 1에 있어서,
EMF 감쇄를 위해 상기 집전코어, 상기 집전코일 및 상기 EMF 능동상쇄코일 전체를 덮는 도체판
을 더 포함하는 것을 특징으로 하는 EMF 능동상쇄 기능을 구비하는 집전장치.The method according to claim 1,
Conductor plate covering the current collector core, the current collector coil, and the entire EMF active offset coil to reduce EMF
A current collector having an EMF active offset function, further comprising a. 청구항 1에 있어서,
상기 집전코일은,
이동체에 설치된 배터리와 연결되어 이동체의 주행 중에 상기 배터리를 충전하기 위한 전원을 공급하는 것
을 특징으로 하는 EMF 능동상쇄 기능을 구비하는 집전장치.The method according to claim 1,
The current collector coil,
Supplying power for charging the battery while the vehicle is being driven in connection with a battery installed in the vehicle
Collector having an EMF active offset function, characterized in that. 이동체에 설치된 집전장치에서 EMF 상쇄코일을 이용하여 EMF를 차폐하는 장치로서,
급전장치로부터 유도된 유도전류가 흐르는 2 개의 집전코일;
상기 각 집전코일의 일단에 연결되어 상기 각 집전코일 주위에 그 집전코일과 반대방향의 전류가 흐르도록 감은 2 개의 EMF 능동상쇄코일; 및
상기 각 집전코일 및 EMF 능동상쇄코일에 흐르는 전류를 직류전류로 변환시키는 2 개의 정류기
를 포함하는 EMF 능동상쇄코일을 이용한 EMF 차폐 장치.
A device for shielding an EMF using an EMF offset coil in a current collector installed on a mobile body,
Two current collecting coils, in which an induced current derived from a power feeding device flows;
Two EMF active offset coils connected to one end of each current collector coil and wound around the current collector coils so that a current in a direction opposite to the current collector coils flows; And
Two rectifiers for converting the current flowing through each current collector coil and the EMF active offset coil into a direct current
EMF shielding device using an EMF active offset coil comprising a.
KR1020100066274A 2010-07-09 2010-07-09 Collector device for electric vehicle with active cancellation of emf KR101169035B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101482599B1 (en) * 2013-08-16 2015-01-14 한국과학기술원 coreless pickup device
WO2015122611A1 (en) * 2014-02-12 2015-08-20 주식회사 대창 Wireless charging apparatus
KR101879938B1 (en) * 2016-06-29 2018-07-18 한국기술교육대학교 산학협력단 Power Supply device for electric vehicle using lines of generating reverse magnetic field
KR20220003986A (en) 2020-07-02 2022-01-11 주식회사 와이파워원 Pickup apparatus using multi pickup coil for wireless charging of electric vehicle and industrial equipment

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003274507A (en) * 2002-03-12 2003-09-26 Railway Technical Res Inst Inductive collector coil device
KR100944113B1 (en) * 2009-02-27 2010-02-24 한국과학기술원 Power supply system and method for electric vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101482599B1 (en) * 2013-08-16 2015-01-14 한국과학기술원 coreless pickup device
WO2015122611A1 (en) * 2014-02-12 2015-08-20 주식회사 대창 Wireless charging apparatus
KR101879938B1 (en) * 2016-06-29 2018-07-18 한국기술교육대학교 산학협력단 Power Supply device for electric vehicle using lines of generating reverse magnetic field
KR20220003986A (en) 2020-07-02 2022-01-11 주식회사 와이파워원 Pickup apparatus using multi pickup coil for wireless charging of electric vehicle and industrial equipment

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