WO2017195909A1 - Offshore wave power generation apparatus having wireless power transmission function - Google Patents

Offshore wave power generation apparatus having wireless power transmission function Download PDF

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Publication number
WO2017195909A1
WO2017195909A1 PCT/KR2016/004813 KR2016004813W WO2017195909A1 WO 2017195909 A1 WO2017195909 A1 WO 2017195909A1 KR 2016004813 W KR2016004813 W KR 2016004813W WO 2017195909 A1 WO2017195909 A1 WO 2017195909A1
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WIPO (PCT)
Prior art keywords
power transmission
power
generator
wireless power
guide post
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PCT/KR2016/004813
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French (fr)
Korean (ko)
Inventor
이준호
이병송
이승환
김재희
이경표
박찬배
정신명
Original Assignee
한국철도기술연구원
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Priority to PCT/KR2016/004813 priority Critical patent/WO2017195909A1/en
Publication of WO2017195909A1 publication Critical patent/WO2017195909A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • 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
    • H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Definitions

  • the present invention relates to an offshore wave power generator having a wireless power transmission function, and more particularly, to a power cable connected to a ground substation facility by adopting a structure for wirelessly transmitting generated power generated by wave power at sea.
  • the present invention relates to a wave power generator that transmits stably.
  • wave power generation is a power generation method that converts the up-and-down motion of a wave into mechanical rotational or axial motion through an energy converter and then into electrical energy.
  • the main configuration of such a wave power generation system is as shown in FIG.
  • the floating cylinder (1) floating on the sea surface moves up and down along the center column (2) as the wave moves up and down, and the center column (2) of the floating cylinder (1) is mechanically toothed.
  • the generator 3 engaged in the gear state generates electric power by converting the rotary motion into electrical energy according to the vertical motion of the floating cylinder 1.
  • the power generated by the generator (3) transfers power to the main power cable (5) below the sea level through the flexible cable (4) and the center pillar (2) connected to the generator (3).
  • the conventional wave power generation system as described above should be operated on the sea surface, and should have a strong resistance to salty seawater.
  • the flexibility of the flexible cable 4 should be ensured despite frequent contact with salty seawater.
  • the present invention is to solve these problems, the present invention adopts a structure for wirelessly transmitting the generated power generated by the wave in the sea to the wave power generator for transmitting to the power cable connected to the ground substation facility
  • the purpose is to provide.
  • the present invention transmits the power generated from the generator through a fixed power cable, so that the power cable can be prevented from being damaged, and the power cable is prevented from being exposed to salt water. It is an object of the present invention to provide a marine wave power generation apparatus having a wireless power transmission function capable of preventing damage, improving power generation efficiency of a generator, and stably transmitting power.
  • the present invention to solve this technical problem
  • a guide post installed vertically upward from the sea bottom;
  • a floating plant provided to be movable up and down along the guide post to move up and down according to the vertical movement of the wave;
  • a generator installed in the floating plant and generating power when the floating plant is elevated;
  • Wireless power transmission means provided with a transmission coil for transmitting the generated power of the generator; It provides a marine wave power generation apparatus having a wireless power transmission function, characterized in that consisting of; wireless power receiving means having a pickup coil in which electromotive force is induced by the magnetic flux generated in the power transmission coil.
  • the floating plant is characterized in that the guide hole for guiding the guide post in the vertical direction in the center is formed.
  • a rack is formed along one side of the guide post in a longitudinal direction, and the pinion gear meshed with the rack is integrally coupled to the rotating shaft of the generator installed in the floating plant.
  • the inside of the guide post is connected to the pickup coil, characterized in that the power cable for transmitting the generated power to the ground substation facility is built.
  • the high frequency inverter is further installed between the generator and the power transmission coil.
  • an iron core for power transmission is installed in the power transmission coil
  • an iron core for pickup is installed in the pickup coil.
  • a gearbox is installed on the rotating shaft of the generator.
  • the output unit of the generator is characterized in that the battery is further installed.
  • the generator when the floating plant is elevated in accordance with the vertical movement of the wave along the guide post installed vertically upward from the sea bottom, the generator is driven by using the primary power transmission coil and the secondary pickup coil. By transmitting and receiving power wirelessly, the power cable is not exposed to seawater, thereby ensuring flexibility.
  • the power cable is installed to be sealed in the guide post in the generator, damage to the power cable due to external physical force can be prevented, thereby increasing power generation efficiency of the generator and stably transmitting power.
  • 1 is a view showing for explaining the structure of a conventional general wave power generator.
  • FIG. 2 is a view showing the structure of a marine wave power generator having a wireless power transmission function according to an embodiment of the present invention.
  • FIG. 3 is a control block diagram of a marine wave power generator having a wireless power transmission function according to an embodiment of the present invention.
  • FIG. 4 is a control block diagram of a marine wave power generator having a wireless power transmission function according to another embodiment of the present invention.
  • FIG. 5 is a control block diagram of a marine wave power generation apparatus having a wireless power transmission function according to another embodiment of the present invention.
  • FIG. 6 is a control block diagram of a marine wave power generation apparatus having a wireless power transmission function according to another embodiment of the present invention.
  • FIG. 7 is a control block diagram of the marine wave power generation apparatus having a wireless power transmission function according to another embodiment of the present invention.
  • the present invention is a wave power generation apparatus 100 for generating power by using wave power at sea, and transmitting the generated generated power wirelessly.
  • the present invention includes a guide post 110 installed vertically upward from the sea bottom surface 10, and a floating plant 120 provided to be able to move up and down along the guide post 110 to move up and down according to the vertical movement of the waves.
  • the generator 130 for generating power generated when the floating plant 120 is elevated, and a power transmission coil 142 for transmitting the generated power of the generator 130 is provided
  • the wireless power transmitting means 140 and the wireless power receiving means 150 is provided with a pick-up coil 152 in which electromotive force is induced by the magnetic flux generated by the power transmitting coil 142.
  • the wireless power transmitting means 140 is installed on one side or the floating plant 120 of the generator 130
  • the wireless power receiving means 150 is installed on the guide post 110
  • the wireless power transmission The generating power of the generator 130 is wirelessly transmitted between the means 140 and the wireless power receiving means 150.
  • the guide post 110 is installed vertically upward from the sea bottom surface 10 to serve as a guide for the floating plant 120 is elevated.
  • One side of such a guide post 110 is formed with a rack (rack) 112 along the longitudinal direction.
  • the floating plant 120 is formed with a guide hole 122 to guide the guide post 110 in the vertical direction in the center to be able to move up and down along the guide post 110 in accordance with the vertical movement of the sea wave.
  • the floating plant 120 may be manufactured to be floated in water by producing an air pocket or filled with foam foam in the housing.
  • the generator 130 is installed above the floating plant 120, and the pinion gear 132 meshed with the rack 112 is integrally coupled to the rotating shaft of the generator 130.
  • the pinion gear engaged with the rack 112 of the guide post 110 while the generator 130 also moves up and down along the guide post 110 as the floating plant 120 moves up and down along the sea wave.
  • the generator 130 is driven to generate power.
  • the wireless power transmission means 140 is provided with a transmission coil 142 for transmitting the generated power of the generator 130, the transmission coil 142 is connected to the generator 130.
  • the guide post 110 is provided with a pickup coil 152 corresponding to the power transmission coil 142 of the wireless power transmission means 140 is induced electromotive force by the magnetic flux generated in the power transmission coil 142 Wireless power receiving means 150 is installed.
  • the wireless power transmission means 140 has a structure in which the transmission coil 142 is wound inside a constant sealed case 141 to block the inflow of salty seawater, and the wireless power reception means 150 is Winding in the longitudinal direction inside the guide post 110 is made of a closed structure to block the inflow of salty seawater.
  • the inside of the guide post 110 is connected to the pickup coil 152, a power cable 160 for transmitting the generated power to the ground substation 200 is embedded. That is, the power cable 160 is a structure that is not exposed to salty seawater, and the power cable 160 is not deformed during power generation to maintain a constant shape as it is, so that the power production efficiency of the generator 130 is constant. I can keep it.
  • the generator 130 transmits the generated power wirelessly
  • the guide post 110 is made of a hollow shape and sealed after installation of the pickup coil 152 and the power cable 160 seawater and the pickup coil 152
  • the penetration of the power cable 160 can be prevented, and the pick-up coil 152 and the power cable 160 in the guide post 110 can be connected, thereby ensuring flexibility when connecting a cable for power transmission.
  • FIG. 4 is a control block diagram of a marine wave power generation apparatus having a wireless power transmission function according to another embodiment of the present invention. Accordingly, the generated power generated by the generator 130 is transferred from the power transmission coil 142 of the primary wireless power transmission means 140 to the pickup coil 152 of the secondary wireless power reception means 150 for wireless power transmission. In the transmission, it is necessary to maximize the wireless power transmission efficiency. For this purpose, generation of high frequency generated power is required, but since the frequency of generated power generated by the generator 130 is irregular, a high frequency inverter 170 is installed between the generator 130 and the power transmission coil 142 to generate high frequency resonance. Type wireless power transmission can be performed.
  • FIG. 5 is a control block diagram of a marine wave power generation apparatus having a wireless power transmission function according to another embodiment of the present invention.
  • the iron core core 143 for power transmission is installed in the primary power transmission coil 142 directly connected to the generator 130, and in the secondary pickup coil 152.
  • the core core 153 for pickup is installed to minimize leakage magnetic flux, even if the frequency of the generated power generated by the generator 130 is low, it is possible to increase the power transfer efficiency.
  • FIG. 6 is a control block diagram of the marine wave power generator having a wireless power transmission function according to another embodiment of the present invention. Accordingly, in order to maintain a constant frequency of the generated power generated by the generator 130, the gear box 133 is installed on the rotation shaft which is the input terminal of the generator 130 to generate a regular frequency of power by a regular rotational speed The primary power transmission coil 142 of the wireless power transmission system may be transmitted.
  • Figure 7 is a control block diagram of a marine wave power generation apparatus having a wireless power transmission function according to another embodiment of the present invention.
  • a mechanical battery (flywheel) or an electrical battery is installed at the output of the generator 130 to store power generated irregularly by the wave force in the battery 135 and set a time.
  • the charging power may be delivered by the wireless power transmission system according to the set environment, such as the buffer state.
  • the floating plant 120 moves up and down along the guide post 110 according to the vertical movement of the waves.
  • the power generation power is generated while the rotation shaft of the generator 130 rotates by the engagement structure of the rack 112 and the pinion 132.
  • the generated power of the generator 130 is injected into the power transmission coil 142 of the wireless power transmission means 140 to generate magnetic flux, thereby causing the electromotive force to be induced in the pickup coil 152 of the wireless power reception means 150. do.
  • the generated power generated in the pickup coil 152 may be stably transmitted to the substation 200 on the ground through the power cable 160 installed inside the guide post 110.
  • the present invention relates to an offshore wave power generator having a wireless power transmission function, and more particularly, to a power cable connected to a ground substation facility by adopting a structure for wirelessly transmitting generated power generated by wave power at sea.
  • the present invention relates to a wave power generator that transmits stably.

Abstract

The present invention relates to an offshore wave power generation apparatus having a wireless power transmission function, comprising: a guide post provided vertically upward from the seabed; a floating plant provided so as to be elevatable along the guide post, thereby elevating according to the vertical movement of a wave; a power generator provided on the floating plant so as to generate power when the floating plant elevates; a wireless power transmission means having a power transmission coil for transmitting the power of the power generator; and a wireless power reception means having a pickup coil by which an electromotive force is induced through the flux generated by the power transmission coil. According to the present invention, when a floating plant elevating according to the vertical movement of a wave elevates along a guide post provided vertically upward from the seabed, power generated by the operation of a power generator is transmitted and received in a wireless manner by using a primary transmission coil and a secondary pickup coil, and thus flexibility can be ensured since a power cable is not exposed to sea water.

Description

무선전력전송 기능을 갖는 해상 파력발전장치Marine wave power generator with wireless power transmission
본 발명은 무선전력전송 기능을 갖는 해상 파력발전장치에 관한 것으로서, 좀더 상세하게는 해상에서 파력에 의해서 생성되는 발전 전력을 무선으로 전송하는 구조를 채용하여 지상의 변전설비에 연결되어 있는 전력 케이블에 안정적으로 전송하는 파력발전장치 관한 것이다.The present invention relates to an offshore wave power generator having a wireless power transmission function, and more particularly, to a power cable connected to a ground substation facility by adopting a structure for wirelessly transmitting generated power generated by wave power at sea. The present invention relates to a wave power generator that transmits stably.
일반적으로 파력발전은 파도의 상하운동을 에너지 변환장치를 통하여 기계적인 회전운동 또는 축 방향 운동으로 변환시킨 후 전기에너지로 변환시키는 발전방식이다.In general, wave power generation is a power generation method that converts the up-and-down motion of a wave into mechanical rotational or axial motion through an energy converter and then into electrical energy.
이러한 파력발전은 다양한 형태로 개발되고 있으며, 등록특허 제10-1138475호, 공개특허 제10-2011-0006365호 등을 통해 다양한 방식이 제안된 바 있다.Such wave power is being developed in various forms, and various methods have been proposed through Patent Registration No. 10-1138475, Patent Publication No. 10-2011-0006365, and the like.
이와 같은 파력발전 시스템의 주된 구성은 도 1에 도시된 바와 같다. 이에 의하면 파력발전 시스템은 파도의 상하 움직임에 따라 해수면에 떠있는 부유통(1)이 중심 기둥(2)을 따라서 상하 운동을 하며 부유통(1)의 중심 기둥(2)과 기계적인 톱니형태인 기어상태로 치합된 발전기(3)는 부유통(1)의 상하 운동에 따라서 회전운동을 전기에너지로 변환하여 전력을 생성시키게 된다. The main configuration of such a wave power generation system is as shown in FIG. According to the wave power generation system, the floating cylinder (1) floating on the sea surface moves up and down along the center column (2) as the wave moves up and down, and the center column (2) of the floating cylinder (1) is mechanically toothed. The generator 3 engaged in the gear state generates electric power by converting the rotary motion into electrical energy according to the vertical motion of the floating cylinder 1.
이때, 상기 발전기(3)에서 생성된 전력은 발전기(3)와 연결된 유연 케이블(4)과 중심기둥(2) 안쪽을 통하여 해수면 아래의 주전력 케이블(5)에 전력을 전달한다.At this time, the power generated by the generator (3) transfers power to the main power cable (5) below the sea level through the flexible cable (4) and the center pillar (2) connected to the generator (3).
그런데, 상기와 같은 통상의 파력 발전 시스템은 해수면상에서 운영되어야하고, 염분이 많은 해수에 대해서 강한 내성을 갖추고 있어야 한다. 특히 발전기(3)와 직접 연결되어 있는 유연 케이블(4)의 경우에는 염분이 많은 해수와의 빈번한 접촉에도 불구하고 유연 케이블(4)의 유연성이 확보되어야 한다. By the way, the conventional wave power generation system as described above should be operated on the sea surface, and should have a strong resistance to salty seawater. In particular, in the case of the flexible cable 4 directly connected to the generator 3, the flexibility of the flexible cable 4 should be ensured despite frequent contact with salty seawater.
그리고, 상기 유연 케이블(4)의 유연성이 충분히 확보 되지 않고 쉽게 경화되는 경우 부유통(1)의 불규칙적인 상하 운동에 대해서 발전기(3)와 부유통 중심기둥(2)의 기어 치합부분이 원활하게 상하 운동하기가 어려워질 뿐만 아니라, 그에 따라 발전기(3)의 전력 생산 효율 역시 현저하게 떨어질 수 있다.In addition, when the flexibility of the flexible cable 4 is not sufficiently secured and easily hardened, the gear engaging portions of the generator 3 and the floating cylinder center column 2 smoothly with respect to the irregular vertical movement of the floating cylinder 1. Not only is it difficult to move up and down, but the power production efficiency of the generator 3 can also be significantly reduced.
따라서, 본 발명은 이러한 문제점들을 해결하기 위한 것으로서, 본 발명은 해상에서 파력에 의해서 발생하는 발전 전력을 무선으로 전송하는 구조를 채용하여 지상의 변전설비에 연결되어 있는 전력 케이블에 전송하는 파력발전장치를 제공하는데 그 목적이 있다.Accordingly, the present invention is to solve these problems, the present invention adopts a structure for wirelessly transmitting the generated power generated by the wave in the sea to the wave power generator for transmitting to the power cable connected to the ground substation facility The purpose is to provide.
특히, 본 발명은 발전기에서 발생하는 발전 전력을 고정형태의 전력 케이블을 통해 전력을 전송하므로 전력 케이블의 파손을 방지할 수 있음은 물론 전력케이블이 해수의 염분에 노출되는 것을 방지하여 케이블의 경화 또는 파손이 방지되고 발전기의 전력 생산 효율을 높이고 안정적인 전력 전송이 가능한 무선전력전송 기능을 갖는 해상 파력발전장치를 제공하는데 그 목적이 있다.In particular, the present invention transmits the power generated from the generator through a fixed power cable, so that the power cable can be prevented from being damaged, and the power cable is prevented from being exposed to salt water. It is an object of the present invention to provide a marine wave power generation apparatus having a wireless power transmission function capable of preventing damage, improving power generation efficiency of a generator, and stably transmitting power.
이와 같은 기술적 과제를 해결하기 위해 본 발명은; The present invention to solve this technical problem;
해저면에서 수직 상방으로 설치되는 가이드 포스트와; 상기 가이드 포스트를 따라 승강가능하게 구비되어 파도의 상하 움직임에 따라 승강하는 부유플랜트와; 상기 부유플랜트에 설치되어 상기 부유플랜트가 승강하면 발전 전력을 생성하는 발전기와; 상기 발전기의 발전 전력을 전송하기 위한 송전 코일이 구비되는 무선전력송신수단과; 상기 송전 코일에서 발생하는 자속에 의해 기전력이 유기되는 픽업 코일이 구비되는 무선전력수신수단;으로 구성되는 것을 특징으로 하는 무선전력전송 기능을 갖는 해상 파력발전장치를 제공한다.A guide post installed vertically upward from the sea bottom; A floating plant provided to be movable up and down along the guide post to move up and down according to the vertical movement of the wave; A generator installed in the floating plant and generating power when the floating plant is elevated; Wireless power transmission means provided with a transmission coil for transmitting the generated power of the generator; It provides a marine wave power generation apparatus having a wireless power transmission function, characterized in that consisting of; wireless power receiving means having a pickup coil in which electromotive force is induced by the magnetic flux generated in the power transmission coil.
이때, 상기 부유플랜트는 중앙에 상하방향으로 상기 가이드 포스트가 안내되는 가이드공이 형성되는 것을 특징으로 한다.At this time, the floating plant is characterized in that the guide hole for guiding the guide post in the vertical direction in the center is formed.
그리고, 상기 가이드 포스트의 일측에는 길이 방향을 따라 랙이 형성되고, 상기 부유플랜트에 설치되는 발전기의 회전축에는 상기 랙에 치합되는 피니언기어가 일체로 결합되는 것을 특징으로 한다.In addition, a rack is formed along one side of the guide post in a longitudinal direction, and the pinion gear meshed with the rack is integrally coupled to the rotating shaft of the generator installed in the floating plant.
또한, 상기 가이드 포스트의 내부에는 픽업 코일과 연결되며 지상의 변전설비로 발전 전력을 전송하기 위한 전력 케이블이 내장되는 것을 특징으로 한다.In addition, the inside of the guide post is connected to the pickup coil, characterized in that the power cable for transmitting the generated power to the ground substation facility is built.
그리고, 상기 발전기와 송전 코일 사이에 고주파 인버터가 더 설치되는 것을 특징으로 한다.The high frequency inverter is further installed between the generator and the power transmission coil.
아울러, 상기 송전 코일에는 송전용 철심 코어가 설치되고, 상기 픽업 코일에는 픽업용 철심 코어가 설치되는 것을 특징으로 한다.In addition, an iron core for power transmission is installed in the power transmission coil, and an iron core for pickup is installed in the pickup coil.
또한, 상기 발전기의 회전축에는 기어박스가 설치되는 것을 특징으로 한다.In addition, a gearbox is installed on the rotating shaft of the generator.
그리고, 상기 발전기의 출력부에는 배터리가 더 설치되는 것을 특징으로 한다.And, the output unit of the generator is characterized in that the battery is further installed.
본 발명에 따르면, 해저면에서 수직 상방으로 설치되는 가이드 포스트를 따라 파도의 상하 움직임에 따라 승강하는 부유플랜트가 승강하면 발전기가 구동되어 생성되는 발전 전력을 1차측 송전 코일과 2차측 픽업코일을 이용하여 무선으로 전력을 송수신함에 따라 전력 케이블이 해수에 노출되지 않아 유연성을 확보할 수 있다. According to the present invention, when the floating plant is elevated in accordance with the vertical movement of the wave along the guide post installed vertically upward from the sea bottom, the generator is driven by using the primary power transmission coil and the secondary pickup coil. By transmitting and receiving power wirelessly, the power cable is not exposed to seawater, thereby ensuring flexibility.
또한, 본 발명은 발전기에서는 전력 케이블이 가이드 포스트 내에 밀폐되도록 설치되므로 외부 물리력에 의한 전력 케이블의 파손도 방지할 수 있어 발전기의 전력 생산 효율을 높이고 전력 전송 역시 안정적으로 수행할 수 있다.In addition, in the present invention, since the power cable is installed to be sealed in the guide post in the generator, damage to the power cable due to external physical force can be prevented, thereby increasing power generation efficiency of the generator and stably transmitting power.
도 1은 종래 일반적인 파력발전장치의 구조를 설명하기 위해 도시한 도면도이다.1 is a view showing for explaining the structure of a conventional general wave power generator.
도 2는 본 발명의 일 실시 예에 따른 무선전력전송 기능을 갖는 해상 파력발전장치의 구조를 도시한 도면도이다.2 is a view showing the structure of a marine wave power generator having a wireless power transmission function according to an embodiment of the present invention.
도 3은 본 발명의 일 실시 예에 따른 무선전력전송 기능을 갖는 해상 파력발전장치의 제어 구성도이다.3 is a control block diagram of a marine wave power generator having a wireless power transmission function according to an embodiment of the present invention.
도 4는 본 발명의 다른 실시 예에 따른 무선전력전송 기능을 갖는 해상 파력발전장치의 제어 구성도이다.4 is a control block diagram of a marine wave power generator having a wireless power transmission function according to another embodiment of the present invention.
도 5는 본 발명의 또 다른 실시 예에 따른 무선전력전송 기능을 갖는 해상 파력발전장치의 제어 구성도이다.5 is a control block diagram of a marine wave power generation apparatus having a wireless power transmission function according to another embodiment of the present invention.
도 6은 본 발명의 또 다른 실시 예에 따른 무선전력전송 기능을 갖는 해상 파력발전장치의 제어 구성도이다.6 is a control block diagram of a marine wave power generation apparatus having a wireless power transmission function according to another embodiment of the present invention.
도 7은 본 발명의 또 다른 실시 예에 따른 무선전력전송 기능을 갖는 해상 파력발전장치의 제어 구성도이다.7 is a control block diagram of the marine wave power generation apparatus having a wireless power transmission function according to another embodiment of the present invention.
본 발명에 따른 무선전력전송 기능을 갖는 해상 파력발전장치를 첨부한 도면을 참고로 하여 이하 상세히 기술되는 실시 예에 의하여 그 특징들을 이해할 수 있을 것이다.With reference to the accompanying drawings, a marine wave power generator having a wireless power transmission function according to the present invention will be understood by the embodiments described in detail below.
이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니 되며, 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.Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the common or dictionary meanings, 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.
따라서, 본 명세서에 기재된 실시 예와 도면에 도시된 구성은 본 발명의 가장 바람직한 일 실시 예에 불과할 뿐이고, 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들은 대체할 수 있는 다양한 균등물과 변형 예들이 있을 수 있음을 이해하여야 한다. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention, and do not represent all of the technical idea of the present invention, these can be replaced at the time of the present application It should be understood that there may be various equivalents and variations.
이하, 도 2 및 도 3을 참고로 본 발명에 따른 무선전력전송 기능을 갖는 해상 파력발전장치를 설명한다. Hereinafter, a marine wave power generation apparatus having a wireless power transmission function according to the present invention will be described with reference to FIGS. 2 and 3.
본 발명은 해상에서 파력을 이용해 전력을 생성하고, 생성된 발전 전력을 무선으로 전송하는 파력발전장치(100)이다. The present invention is a wave power generation apparatus 100 for generating power by using wave power at sea, and transmitting the generated generated power wirelessly.
이와 같은 본 발명은 해저면(10)에서 수직 상방으로 설치되는 가이드 포스트(110)와, 상기 가이드 포스트(110)를 따라 승강가능하게 구비되어 파도의 상하 움직임에 따라 승강하는 부유플랜트(120)와, 상기 부유플랜트(120)에 설치되어 상기 부유플랜트(120)가 승강하면 발전 전력을 생성하는 발전기(130)와, 상기 발전기(130)의 발전 전력을 전송하기 위한 송전 코일(142)이 구비되는 무선전력송신수단(140)과, 상기 송전 코일(142)에서 발생하는 자속에 의해 기전력이 유기되는 픽업(pick-up) 코일(152)이 구비되는 무선전력수신수단(150)으로 구성된다. As described above, the present invention includes a guide post 110 installed vertically upward from the sea bottom surface 10, and a floating plant 120 provided to be able to move up and down along the guide post 110 to move up and down according to the vertical movement of the waves. Is installed on the floating plant 120, the generator 130 for generating power generated when the floating plant 120 is elevated, and a power transmission coil 142 for transmitting the generated power of the generator 130 is provided The wireless power transmitting means 140 and the wireless power receiving means 150 is provided with a pick-up coil 152 in which electromotive force is induced by the magnetic flux generated by the power transmitting coil 142.
이 경우 상기 무선전력송신수단(140)은 상기 발전기(130)의 일측 또는 부유플랜트(120)에 설치되며, 상기 무선전력수신수단(150)은 상기 가이드 포스트(110)에 설치되어 상기 무선전력송신수단(140) 및 무선전력수신수단(150) 간에 무선으로 발전기(130)의 발전 전력을 송신하게 된다.In this case, the wireless power transmitting means 140 is installed on one side or the floating plant 120 of the generator 130, the wireless power receiving means 150 is installed on the guide post 110, the wireless power transmission The generating power of the generator 130 is wirelessly transmitted between the means 140 and the wireless power receiving means 150.
이하, 본 발명의 각부 구성을 구체적으로 설명한다.Hereinafter, the structure of each part of this invention is demonstrated concretely.
먼저, 상기 가이드 포스트(110)는 해저면(10)에서 수직 상방으로 설치되어 부유플랜트(120)가 승강하는 가이드 역할을 하게 된다.First, the guide post 110 is installed vertically upward from the sea bottom surface 10 to serve as a guide for the floating plant 120 is elevated.
이와 같은 가이드 포스트(110)의 일측에는 길이 방향을 따라 랙(rack)(112)이 형성된다.One side of such a guide post 110 is formed with a rack (rack) 112 along the longitudinal direction.
또한, 상기 부유플랜트(120)는 해상 파도의 상하 움직임에 따라 상기 가이드 포스트(110)를 따라 승강가능하게 중앙에 상하방향으로 상기 가이드 포스트(110)가 안내되는 가이드공(122)이 형성된다.In addition, the floating plant 120 is formed with a guide hole 122 to guide the guide post 110 in the vertical direction in the center to be able to move up and down along the guide post 110 in accordance with the vertical movement of the sea wave.
이때, 상기 부유플랜트(120)는 하우징 내부에 에어포켓이 구비되거나 또는 발포폼이 충진된 상태로 제작하여 물에 뜰 수 있도록 제작할 수 있다.In this case, the floating plant 120 may be manufactured to be floated in water by producing an air pocket or filled with foam foam in the housing.
이와 같은 부유플랜트(120)의 상측에는 발전기(130)가 설치되며, 상기 발전기(130)의 회전축에는 상기 랙(112)에 치합되는 피니언기어(132)가 일체로 결합된다.The generator 130 is installed above the floating plant 120, and the pinion gear 132 meshed with the rack 112 is integrally coupled to the rotating shaft of the generator 130.
따라서, 해상 파도의 상하 움직임에 따라 상기 부유플랜트(120)가 가이드 포스트(110)를 따라 승강시에 발전기(130)도 함께 승강하면서 가이드 포스트(110)의 랙(112)에 치합된 피니언기어(132)가 회전하면서 발전기(130)가 구동되어 전력을 생성하게 된다.Accordingly, the pinion gear engaged with the rack 112 of the guide post 110 while the generator 130 also moves up and down along the guide post 110 as the floating plant 120 moves up and down along the sea wave. As the 132 rotates, the generator 130 is driven to generate power.
한편, 상기 무선전력송신수단(140)은 상기 발전기(130)의 발전 전력을 전송하기 위한 송전 코일(142)이 구비되며 상기 송전 코일(142)은 발전기(130)와 연결된다.On the other hand, the wireless power transmission means 140 is provided with a transmission coil 142 for transmitting the generated power of the generator 130, the transmission coil 142 is connected to the generator 130.
이에 대해 상기 가이드 포스트(110)에는 상기 무선전력송신수단(140)의 송전 코일(142)에 대응되어 상기 송전 코일(142)에서 발생하는 자속에 의해 기전력이 유기되는 픽업 코일(152)이 구비되는 무선전력수신수단(150)이 설치된다.On the other hand, the guide post 110 is provided with a pickup coil 152 corresponding to the power transmission coil 142 of the wireless power transmission means 140 is induced electromotive force by the magnetic flux generated in the power transmission coil 142 Wireless power receiving means 150 is installed.
이 경우 상기 무선전력송신수단(140)은 일정한 밀폐된 케이스(141) 내부에 송전 코일(142)이 권취된 구조로 이루어져 염분이 많은 해수의 유입을 차단하고, 상기 무선전력수신수단(150)은 가이드 포스트(110)의 내부에 길이방향으로 권취하여 밀폐된 구조로 이루어져 염분이 많은 해수의 유입을 차단한다.In this case, the wireless power transmission means 140 has a structure in which the transmission coil 142 is wound inside a constant sealed case 141 to block the inflow of salty seawater, and the wireless power reception means 150 is Winding in the longitudinal direction inside the guide post 110 is made of a closed structure to block the inflow of salty seawater.
한편, 상기 가이드 포스트(110)의 내부에는 픽업 코일(152)과 연결되며 지상의 변전설비(200)로 발전 전력을 전송하기 위한 전력 케이블(160)이 내장된다. 즉, 상기 전력 케이블(160)은 염분이 많은 해수에 노출되지 않는 구조이고, 전력생산중에 전력 케이블(160)이 변형되지 않고 일정한 모양을 그대로 유지하게 되므로 발전기(130)의 전력 생산 효율을 일정하게 유지할 수 있다.On the other hand, the inside of the guide post 110 is connected to the pickup coil 152, a power cable 160 for transmitting the generated power to the ground substation 200 is embedded. That is, the power cable 160 is a structure that is not exposed to salty seawater, and the power cable 160 is not deformed during power generation to maintain a constant shape as it is, so that the power production efficiency of the generator 130 is constant. I can keep it.
즉, 발전기(130)의 발전 전력을 무선으로 전송하며, 상기 가이드 포스트(110)는 중공 형상으로 이루어져 픽업 코일(152)과 전력 케이블(160)을 설치후 밀폐시킴으로써 해수가 픽업 코일(152)과 전력 케이블(160)로 침투되는 것을 막을 수 있고, 상기 가이드 포스트(110) 내의 픽업 코일(152)과 전력 케이블(160)이 연결되므로 전력 전송을 위한 케이블 연결시 유연성을 확보할 수 있다. That is, the generator 130 transmits the generated power wirelessly, and the guide post 110 is made of a hollow shape and sealed after installation of the pickup coil 152 and the power cable 160 seawater and the pickup coil 152 The penetration of the power cable 160 can be prevented, and the pick-up coil 152 and the power cable 160 in the guide post 110 can be connected, thereby ensuring flexibility when connecting a cable for power transmission.
한편, 도 4는 본 발명의 다른 실시 예에 따른 무선전력전송 기능을 갖는 해상 파력발전장치의 제어 구성도이다. 이에 의하면, 발전기(130)에서 생성된 발전 전력은 무선전력전송을 위해 1차측 무선전력송신수단(140)의 송전 코일(142)에서 2차측 무선전력수신수단(150)의 픽업 코일(152)에 전달시, 무선전력 전송 효율을 극대화할 필요가 있다. 이를 위해 높은 주파수의 발전 전력의 생성이 필요하지만 발전기(130)에서 생성되는 발전 전력의 주파수는 불규칙적이기 때문에, 발전기(130)와 송전 코일(142) 사이에 고주파 인버터(170)를 설치하여 고주파 공진형 무선전력전송을 수행할 수 있다. On the other hand, Figure 4 is a control block diagram of a marine wave power generation apparatus having a wireless power transmission function according to another embodiment of the present invention. Accordingly, the generated power generated by the generator 130 is transferred from the power transmission coil 142 of the primary wireless power transmission means 140 to the pickup coil 152 of the secondary wireless power reception means 150 for wireless power transmission. In the transmission, it is necessary to maximize the wireless power transmission efficiency. For this purpose, generation of high frequency generated power is required, but since the frequency of generated power generated by the generator 130 is irregular, a high frequency inverter 170 is installed between the generator 130 and the power transmission coil 142 to generate high frequency resonance. Type wireless power transmission can be performed.
또한, 도 5는 본 발명의 또 다른 실시 예에 따른 무선전력전송 기능을 갖는 해상 파력발전장치의 제어 구성도이다. 이에 의하면, 도 4에서와 같이 고주파 인버터를 사용하지 않는 경우 상기 발전기(130)와 직접 연결된 1차측 송전 코일(142)에 송전용 철심 코어(143)을 설치하고, 2차측 픽업 코일(152)에 픽업용 철심 코어(153)를 설치하여 누설자속을 최소화함으로써 발전기(130)에서 생성되는 발전 전력의 주파수가 낮을지라도 전력전달효율을 높일 수 있다.5 is a control block diagram of a marine wave power generation apparatus having a wireless power transmission function according to another embodiment of the present invention. According to this, when the high frequency inverter is not used as shown in FIG. 4, the iron core core 143 for power transmission is installed in the primary power transmission coil 142 directly connected to the generator 130, and in the secondary pickup coil 152. By installing the core core 153 for pickup to minimize leakage magnetic flux, even if the frequency of the generated power generated by the generator 130 is low, it is possible to increase the power transfer efficiency.
아울러, 도 6은 본 발명의 또 다른 실시 예에 따른 무선전력전송 기능을 갖는 해상 파력발전장치의 제어 구성도이다. 이에 의하면 발전기(130)에서 생성되는 발전 전력의 주파수를 일정하게 유지하기 위해서 발전기(130)의 입력단인 회전축에 기어박스(133)를 설치하여 규칙적인 회전속도에 의해서 규칙적인 주파수의 전력을 생성하여 무선전력전송 시스템의 1차측 송전 코일(142)에 전달할 수 있다.6 is a control block diagram of the marine wave power generator having a wireless power transmission function according to another embodiment of the present invention. Accordingly, in order to maintain a constant frequency of the generated power generated by the generator 130, the gear box 133 is installed on the rotation shaft which is the input terminal of the generator 130 to generate a regular frequency of power by a regular rotational speed The primary power transmission coil 142 of the wireless power transmission system may be transmitted.
그리고, 도 7은 본 발명의 또 다른 실시 예에 따른 무선전력전송 기능을 갖는 해상 파력발전장치의 제어 구성도이다. 이에 의하면 발전기 입력단에 기어박스를 설치하는 대신에 발전기(130)의 출력부에 기계적 배터리(플라이휠) 또는 전기적 배터리를 설치하여 파력에 의해서 불규칙적으로 생성되는 전력을 일단 배터리(135)에 저장하고 설정된 시간이나 충전전력이 완충상태 등의 설정된 환경에 따라 무선전력전송 시스템에 의해서 전력을 전달할 수 있다.And, Figure 7 is a control block diagram of a marine wave power generation apparatus having a wireless power transmission function according to another embodiment of the present invention. According to this, instead of installing a gearbox at the generator input, a mechanical battery (flywheel) or an electrical battery is installed at the output of the generator 130 to store power generated irregularly by the wave force in the battery 135 and set a time. In addition, the charging power may be delivered by the wireless power transmission system according to the set environment, such as the buffer state.
이상의 도 2 내지 도 7에 도시된 바에 의하면, 본 발명에 따른 무선전력전송 기능을 갖는 해상 파력발전장치에 의하면 상기 파도의 상하 움직임에 따라 부유플랜트(120)가 가이드 포스트(110)를 따라 승강하면서 랙(112)과 피니언(132)의 치합 구조에 의해 발전기(130)의 회전축이 회전하면서 발전 전력이 생성된다.2 to 7, according to the marine wave power generation apparatus having a wireless power transmission function according to the present invention, the floating plant 120 moves up and down along the guide post 110 according to the vertical movement of the waves. The power generation power is generated while the rotation shaft of the generator 130 rotates by the engagement structure of the rack 112 and the pinion 132.
이와 같은 발전기(130)의 발전 전력은 무선전력송신수단(140)의 송전 코일(142)에 투입되어 자속이 발생하고, 이에 의해 무선전력수신수단(150)의 픽업 코일(152)에 기전력이 유기된다.The generated power of the generator 130 is injected into the power transmission coil 142 of the wireless power transmission means 140 to generate magnetic flux, thereby causing the electromotive force to be induced in the pickup coil 152 of the wireless power reception means 150. do.
이와 같은 픽업 코일(152)에 유기된 발전 전력은 가이드 포스트(110) 내부에 설치되는 전력 케이블(160)을 통해 지상의 변전설비(200)로 안정적으로 전송할 수 있다.The generated power generated in the pickup coil 152 may be stably transmitted to the substation 200 on the ground through the power cable 160 installed inside the guide post 110.
이상의 설명은 본 발명의 기술 사상을 예시적으로 설명한 것에 불과한 것으로서, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자라면 본 발명의 본질적인 특성에서 벗어나지 않는 범위에서 다양한 수정 및 변형 가능한 것으로, 본 발명의 보호범위는 아래의 청구범위에 의하여 해석되어야 하며, 그와 동등한 범위 내에 있는 모든 기술 사상은 본 발명의 권리범위에 포함되는 것으로 해석되어야 할 것이다.The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains various modifications and variations without departing from the essential characteristics of the present invention. The scope of protection should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.
본 발명은 무선전력전송 기능을 갖는 해상 파력발전장치에 관한 것으로서, 좀더 상세하게는 해상에서 파력에 의해서 생성되는 발전 전력을 무선으로 전송하는 구조를 채용하여 지상의 변전설비에 연결되어 있는 전력 케이블에 안정적으로 전송하는 파력발전장치 관한 것이다.The present invention relates to an offshore wave power generator having a wireless power transmission function, and more particularly, to a power cable connected to a ground substation facility by adopting a structure for wirelessly transmitting generated power generated by wave power at sea. The present invention relates to a wave power generator that transmits stably.

Claims (8)

  1. 해저면에서 수직 상방으로 설치되는 가이드 포스트와; 상기 가이드 포스트를 따라 승강가능하게 구비되어 파도의 상하 움직임에 따라 승강하는 부유플랜트와; 상기 부유플랜트에 설치되어 상기 부유플랜트가 승강하면 발전 전력을 생성하는 발전기와; 상기 발전기의 발전 전력을 전송하기 위한 송전 코일이 구비되는 무선전력송신수단과; 상기 송전 코일에서 발생하는 자속에 의해 기전력이 유기되는 픽업 코일이 구비되는 무선전력수신수단;으로 구성되는 것을 특징으로 하는 무선전력전송 기능을 갖는 해상 파력발전장치.A guide post installed vertically upward from the sea bottom; A floating plant provided to be movable up and down along the guide post to move up and down according to the vertical movement of the wave; A generator installed in the floating plant and generating power when the floating plant is elevated; Wireless power transmission means provided with a transmission coil for transmitting the generated power of the generator; An offshore wave power generation apparatus having a wireless power transmission function, comprising: a wireless power receiving means having a pickup coil in which electromotive force is induced by magnetic flux generated by the power transmission coil.
  2. 제 1항에 있어서, The method of claim 1,
    상기 부유플랜트는 중앙에 상하방향으로 상기 가이드 포스트가 안내되는 가이드공이 형성되는 것을 특징으로 하는 무선전력전송 기능을 갖는 해상 파력발전장치.The floating plant is a marine wave power generation apparatus having a wireless power transmission function, characterized in that the guide hole is formed in the center to guide the guide post in the vertical direction.
  3. 제 1항에 있어서, The method of claim 1,
    상기 가이드 포스트의 일측에는 길이 방향을 따라 랙이 형성되고, 상기 부유플랜트에 설치되는 발전기의 회전축에는 상기 랙에 치합되는 피니언기어가 일체로 결합되는 것을 특징으로 하는 무선전력전송 기능을 갖는 해상 파력발전장치.A rack is formed on one side of the guide post along a longitudinal direction, and the pinion gear coupled to the rack is integrally coupled to the rotating shaft of the generator installed in the floating plant. Device.
  4. 제 1항에 있어서, The method of claim 1,
    상기 가이드 포스트의 내부에는 픽업 코일과 연결되며 지상의 변전설비로 발전 전력을 전송하기 위한 전력 케이블이 내장되는 것을 특징으로 하는 무선전력전송 기능을 갖는 해상 파력발전장치.The marine wave power generation apparatus having a wireless power transmission function, characterized in that the interior of the guide post is connected to the pickup coil and a power cable for transmitting the generated power to the ground substation facility.
  5. 제 1항에 있어서, The method of claim 1,
    상기 발전기와 송전 코일 사이에 고주파 인버터가 더 설치되는 것을 특징으로 하는무선전력전송 기능을 갖는 해상 파력발전장치.An offshore wave power generator having a wireless power transmission function, characterized in that a high frequency inverter is further installed between the generator and the power transmission coil.
  6. 제 1항에 있어서, The method of claim 1,
    상기 송전 코일에는 송전용 철심 코어가 설치되고, 상기 픽업 코일에는 픽업용 철심 코어가 설치되는 것을 특징으로 하는 무선전력전송 기능을 갖는 해상 파력발전장치.The power transmission coil is provided with an iron core core for power transmission, and the pick-up coil is a marine wave power generation apparatus having a wireless power transmission function, characterized in that the pickup core core is installed.
  7. 제 1항에 있어서, The method of claim 1,
    상기 발전기의 회전축에는 기어박스가 설치되는 것을 특징으로 하는 무선전력전송 기능을 갖는 해상 파력발전장치.Offshore wave power generation apparatus having a wireless power transmission function, characterized in that the gearbox is installed on the rotating shaft of the generator.
  8. 제 1항에 있어서, The method of claim 1,
    상기 발전기의 출력부에는 배터리가 더 설치되는 것을 특징으로 하는 무선전력전송 기능을 갖는 해상 파력발전장치.The marine wave power generator having a wireless power transmission function, characterized in that the battery is further installed at the output of the generator.
PCT/KR2016/004813 2016-05-09 2016-05-09 Offshore wave power generation apparatus having wireless power transmission function WO2017195909A1 (en)

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