KR101253997B1 - Power supply system for ship - Google Patents

Power supply system for ship Download PDF

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Publication number
KR101253997B1
KR101253997B1 KR1020120008214A KR20120008214A KR101253997B1 KR 101253997 B1 KR101253997 B1 KR 101253997B1 KR 1020120008214 A KR1020120008214 A KR 1020120008214A KR 20120008214 A KR20120008214 A KR 20120008214A KR 101253997 B1 KR101253997 B1 KR 101253997B1
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South Korea
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converter
generator
load facility
ship
voltage
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KR1020120008214A
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Korean (ko)
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고기석
김정도
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시엔에이전기 주식회사
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    • 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
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/04—Control effected upon non-electric prime mover and dependent upon electric output value of the generator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
    • 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
    • H02P2101/00—Special adaptation of control arrangements for generators
    • H02P2101/35—Special adaptation of control arrangements for generators for ships
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S388/00—Electricity: motor control systems
    • Y10S388/907—Specific control circuit element or device
    • Y10S388/912—Pulse or frequency counter

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Stand-By Power Supply Arrangements (AREA)

Abstract

PURPOSE: A vessel power supplying system is provided to facilitate a generator test by electrically connecting a generator to a land load facility with a frequency converter. CONSTITUTION: A commercial voltage power part(11) is mounted on land and outputs commercial power voltage. A generator(12) is mounted on a vessel and outputs generator voltage. A frequency converter(20) electrically connects a vessel load facility(201) and an land load facility(202). A generator frequency conversion part(24) is interposed between a converter input terminal(21) and a converter output terminal(22). A control part controls a frequency conversion switching part(25). [Reference numerals] (11) Commercial voltage power part; (12) Generator; (13) Transformer; (20) Frequency converter; (201) Vessel load facility; (202) Land load facility; (23) Commercial power frequency conversion part; (24) Generator frequency conversion part; (25) Frequency conversion switching part;

Description

선박전력공급시스템{Power Supply System for Ship}Power Supply System for Ship

본 발명은 선박전력공급시스템에 관한 것으로서, 보다 상세하게는 선박에 설치된 선박부하설비에 전력을 공급하기 위한 시스템에 관한 것이다.The present invention relates to a ship power supply system, and more particularly to a system for supplying power to the ship load equipment installed in the ship.

해상운송수단으로 널리 사용되고 있는 선박에는 콘테이너, 동력기관 등과 같은 여러가지 선박부하설비가 설치되어 있다.Ships widely used as maritime means of transport are equipped with various vessel load facilities such as containers and power engines.

선박부하설비를 사용할 때 전력을 공급하여야 하므로, 선박이 운항중일 때에는 물론 선박이 정박 중일 때에 선박부하설비에 전력을 공급하기 위한 선박전력공급시스템이 안출되어 사용되고 있다.Since the electric power must be supplied when the ship load facility is used, a ship power supply system for supplying power to the ship load facility when the ship is in operation as well as when the ship is anchored is being used.

도3은 종래 선박전력공급시스템의 전체구성도이고, 도4는 종래 선박전력공급시스템의 제어블럭도이다.3 is an overall configuration diagram of a conventional ship power supply system, Figure 4 is a control block diagram of a conventional ship power supply system.

종래의 선박전력공급시스템은, 이들 도면에 도시된 바와 같이, 지상에 설치된 상용전압전원부(111)와, 선박에 설치된 발전기(112)와, 상용전압전원부(111)와 선박부하설비(201) 사이에 배치된 주파수변환기(120)와, 주파수변환기(120)와 선박부하설비(201) 사이에 배치된 변압기(113)와, 상용전압전원부(111)와 선박부하설비(201) 사이의 전기적 연결을 개폐하는 변환기선박부하설비개폐스위치(SW11)와, 발전기(112)와 선박부하설비(201) 사이의 전기적 연결을 개폐하는 발전기부하설비개폐스위치(SW21)와, 변환기선박부하설비개폐스위치(SW11)와 발전기부하설비개폐스위치(SW21)의 동작을 제어하는 제어부(114)를 갖고 있다.The conventional ship power supply system, as shown in these figures, between the commercial voltage power supply 111 installed on the ground, the generator 112 installed on the ship, between the commercial voltage power supply 111 and the ship load equipment 201 The electrical connection between the frequency converter 120 disposed in the transformer 120, the transformer 113 disposed between the frequency converter 120 and the ship load facility 201, and the commercial voltage power supply 111 and the ship load facility 201. Converter ship load facility switch (SW11) to open and close, generator load facility switch (SW21) to open and close the electrical connection between the generator 112 and the ship load facility (201), converter ship load facility switch (SW11) And a control unit 114 for controlling the operation of the generator load facility open / close switch SW21.

상용전압전원부(111)는 상용전원전압을 출력한다. 상용전압전원부(111)는 한전 등 전력공급회사가 보유하는 발전소가 될 수 있다.The commercial voltage power supply unit 111 outputs a commercial power supply voltage. The commercial voltage power supply unit 111 may be a power plant held by a power supply company such as KEPCO.

발전기(112)는 선박부하설비(201)에 인가되는 전압과 같은 크기의 주파수를 갖는 발전기전압을 출력한다.The generator 112 outputs a generator voltage having a frequency equal to the voltage applied to the ship load facility 201.

주파수변환기(120)는 변환기입력단(121) 및 변환기출력단(122)을 갖고 있다.The frequency converter 120 has a converter input terminal 121 and a converter output terminal 122.

이러한 구성을 갖는 주파수변환기(120)는 선박에 설치되고, 변환기입력단(121)을 통해 상용전압전원부(111)에 전기적으로 연결되고, 변환기출력단(122)을 통해 선박부하설비(201)에 전기적으로 연결된다.The frequency converter 120 having such a configuration is installed in the vessel, electrically connected to the commercial voltage power supply 111 through the converter input terminal 121, and electrically connected to the ship load facility 201 through the converter output terminal 122. Connected.

변압기(113)는 변환기출력단(122)과 변환기선박부하설비개폐스위치(SW11) 사이에 개재되어 있다.The transformer 113 is interposed between the converter output stage 122 and the converter ship load equipment switching switch SW11.

변환기선박부하설비개폐스위치(SW11)는 변환기출력단(122)과 선박부하설비(201) 사이에 설치되고, 제어부(114)로부터의 제어신호에 따라 변환기출력단(122)과 선박부하설비(201) 사이의 전기적 연결을 온오프하도록 작용한다.The converter ship load equipment opening and closing switch SW11 is installed between the converter output stage 122 and the ship load facility 201, and between the converter output stage 122 and the ship load facility 201 in accordance with a control signal from the control unit 114. Acts to turn the electrical connection on and off.

발전기부하설비개폐스위치(SW21)는 선박부하설비(201)와 발전기(112) 사이에 설치되고, 제어부(114)로부터의 제어신호에 따라 선박부하설비(201)와 발전기(112) 사이의 전기적 연결을 온오프하도록 동작한다.The generator load facility open / close switch SW21 is installed between the ship load facility 201 and the generator 112 and is electrically connected between the ship load facility 201 and the generator 112 according to a control signal from the controller 114. To turn on and off.

제어부(114)는 입력단에 운용자단말기(203)가 연결되어 있고, 출력단에는 변환기선박부하설비개폐스위치(SW11) 및 발전기부하설비개폐스위치(SW21)가 연결되어 있다.The controller 114 has an operator terminal 203 connected to an input terminal, and a converter vessel load equipment switch SW11 and a generator load equipment switch SWSW21 are connected to an output terminal.

이러한 구성을 갖는 제어부(114)의 제어동작을 설명하면 다음과 같다.Referring to the control operation of the control unit 114 having such a configuration as follows.

운용자단말기(203)를 통해 상용전원전압을 선박부하설비(201)에 공급하기 위한 상용전원단독공급모드를 선택하는 명령이 제어부(114)로 입력되면, 제어부(114)는 변환기선박부하설비개폐스위치(SW11)가 온되도록 제어한다.When a command for selecting a commercial power supply alone mode for supplying the commercial power supply voltage to the ship load facility 201 through the operator terminal 203 is input to the control unit 114, the control unit 114 switches the converter vessel load facility open / close switch. (SW11) is controlled to be on.

그리고 제어부(114)는 상용전원단독공급모드가 선택될 때 발전기부하설비개폐스위치(SW21)가 오프되도록 제어한다.In addition, the controller 114 controls the generator load facility switching switch SW21 to be turned off when the commercial power supply alone mode is selected.

상용전원단독공급모드가 선택되면 상용전압전원부(111)의 출력전압은 상용전원주파수변환부(123)에서의 주파수변환과정 및 변압기(113)에서의 전압레벨변환과정을 거쳐 선박부하설비(201)에 인가되고, 이에 따라 상용전압전원부(111)로부터 선박부하설비(201)에 전력이 공급된다.When the commercial power supply alone mode is selected, the output voltage of the commercial voltage power supply 111 is subjected to the frequency conversion process in the commercial power frequency converter 123 and the voltage level conversion process in the transformer 113, the vessel load facility 201 The power is supplied to the ship load facility 201 from the commercial voltage power supply 111 accordingly.

상용전원전압과 발전기전압을 동시에 선박부하설비(201)에 공급하기 위한 병행공급모드를 선택하는 명령이 제어부(114)로 입력되면, 제어부(114)는 변환기선박부하설비개폐스위치(SW11) 및 발전기부하설비개폐스위치(SW21)가 온되도록 제어한다.When a command for selecting a parallel supply mode for simultaneously supplying the commercial power supply voltage and the generator voltage to the ship load facility 201 is input to the control unit 114, the control unit 114 switches the converter vessel load facility switch SW11 and the generator. Control so that the load facility switch (SW21) is turned on.

병행공급모드가 선택되면, 상용전압전원부(111)의 출력전압은 주파수변환기(120)에서의 주파수변환과정 및 변압기(113)에서의 전압레벨변환과정을 거쳐 선박부하설비(201)에 인가됨과 동시에 발전기(112)의 출력전압이 선박부하설비(201)에 인가되고, 이에 따라 상용전압전원부(111)와 발전기(112)로부터 선박부하설비(201)에 전력이 공급된다.When the parallel supply mode is selected, the output voltage of the commercial voltage power supply 111 is applied to the ship load facility 201 through the frequency conversion process in the frequency converter 120 and the voltage level conversion process in the transformer 113. The output voltage of the generator 112 is applied to the ship load facility 201, and thus power is supplied from the commercial voltage power supply unit 111 and the generator 112 to the ship load facility 201.

한편 발전기(112)의 테스트는 선박에 테스트부하(204)를 설치하고 발전기부하설비개폐스위치(SW21)가 오프된 상태에서 테스트부하스위치(SW61)를 수동으로 온조작하여 테스트부하(204)를 발전기에 연결하는 방법으로 이루어진다.
상기 종래기술과 관련된 배경기술로는 2011년 공개 제10-2011-0136862호(발명의 명칭 : 선박의 탑재된 전력 네트워크에 외부 에너지를 공급하기 위한 방법, 그러한 외부 에너지 공급을 갖는 선박)가 있다.On the other hand, the test of the generator 112 is to install the test load 204 in the vessel and the generator load facility switch switch SW21 is turned on by manually operating the test load switch (SW61) in the off state test generator 204 This is done by connecting to.
Background art related to the prior art is 2011 Publication No. 10-2011-0136862 (name of the invention: a method for supplying external energy to an onboard power network of a ship, a vessel having such an external energy supply).

그런데 종래의 선박전력공급시스템에 따르면, 선박에 설치된 발전기(112)를 지상에 설치된 육상부하설비에 전력을 공급하는 데 사용할 수 없고, 발전기(112)를 테스트하기 위핸 선박에 테스트용부하(204)를 설치하여야 한다는 문제점이 있었다.By the way, according to the conventional ship power supply system, the generator 112 installed in the ship can not be used to supply power to the land load equipment installed on the ground, the test load 204 to the ship for testing the generator 112. There was a problem that should be installed.

따라서 본 발명의 목적은, 선박에 설치된 발전기를 육상부하설비에 전력을 공급하는데 사용할 수 있고, 육상부하설비를 통해 발전기를 테스트할 수 있도록 한 선박전력공급시스템을 제공하는 것이다.Accordingly, an object of the present invention is to provide a ship power supply system that can be used to supply power to a land load facility, the generator installed in the ship, and to test the generator through the land load facility.

상기 목적은, 본 발명에 따라, 선박에 설치된 선박부하설비에 전력을 공급하기 위한 선박전력공급시스템에 있어서, 상기 선박부하설비에 전기적으로 연결되도록 지상에 설치되고, 상용전원전압을 출력하는 상용전압전원부와; 선박에 설치되고, 상기 선박부하설비에 인가되는 전압과 같은 크기의 주파수를 갖는 발전기전압을 출력하는 발전기와; 선박에 설치되고, 변환기입력단 및 변환기출력단과 상기 변환기입력단과 상기 변환기출력단 사이에 개재되어 상기 변환기입력단을 통해 입력되는 상용전원전압의 주파수를 지상에 설치된 육상부하설비가 필요로 하는 육상부하설비전압의 주파수로 변환하여 상기 변환기출력단으로 출력하는 상용전원주파수변환부와 상기 상용전원주파수변환부에 대하여 병렬을 이루도록 상기 변환기입력단과 상기 변환기출력단 사이에 개재되어 상기 변환기입력단을 통해 입력되는 발전기전압의 주파수를 상기 육상부하설비전압의 주파수로 변환하여 상기 변환기출력단으로 출력하는 발전기주파수변환부와 외부로부터의 제어신호에 따라 상기 변환기입력단을 상기 상용전원주파수변환부와 상기 발전기주파수변환부 중 어느 일방과 선택적으로 연결하도록 동작하는 주파수변환스위칭부를 가지고, 상기 변환기입력단을 통해 상기 상용전압전원부와 상기 발전기에 전기적으로 연결되고 상기 변환기출력단을 통해 상기 선박부하설비와 상기 육상부하설비에 전기적으로 연결되도록 설치되는 주파수변환기와; 상기 변환기입력단과 상기 상용전압전원부 사이에 설치되고, 외부로부터의 제어신호에 따라 상기 변환기입력단과 상기 상용전압전원부 사이의 전기적 연결을 온오프하는 상용전원변환기개폐스위치와; 상기 변환기출력단과 상기 선박부하설비 사이에 설치되고, 외부로부터의 제어신호에 따라 상기 변환기출력단과 상기 선박부하설비 사이의 전기적 연결을 온오프하는 변환기선박부하설비개폐스위치와; 상기 변환기입력단과 상기 발전기 사이에 설치되고, 외부로부터의 제어신호에 따라 상기 변환기입력단과 상기 발전기 사이의 전기적 연결을 온오프하는 발전기변환기개폐스위치와; 상기 선박부하설비와 상기 발전기 사이에 설치되고, 외부로부터의 제어신호에 따라 상기 선박부하설비와 상기 발전기 사이의 전기적 연결을 온오프하는 발전기부하설비개폐스위치와; 상기 변환기출력단과 상기 육상부하설비 사이에 설치되고, 외부로부터의 제어신호에 따라 상기 변환기출력단과 상기 육상부하설비 사이의 전기적 연결을 온오프하는 변환기육상부하설비개폐스위치와; 상기 상용전원전압을 상기 선박부하설비에 공급하기 위한 상용전원단독공급모드가 선택될 때 상기 상용전원변환기개폐스위치 및 상기 변환기선박부하설비개폐스위치가 온되고 상기 발전기변환기개폐스위치, 상기 변환기육상부하설비개폐스위치 및 상기 발전기부하설비개폐스위치가 오프되도록 제어하고, 상기 발전기전압을 상기 육상부하설비에 공급하기 위한 발전기육상부하공급모드가 선택될 때 상기 발전기변환기개폐스위치 및 상기 변환기육상부하설비개폐스위치가 온되고 상기 상용전원변환기개폐스위치, 상기 변환기선박부하설비개폐스위치 및 상기 발전기부하설비개폐스위치가 오프되도록 제어하고, 상기 상용전원전압과 상기 발전기전압을 동시에 상기 선박부하설비에 공급하기 위한 병행공급모드가 선택될 때 상기 상용전원변환기개폐스위치, 상기 변환기선박부하설비개폐스위치 및 상기 발전기부하설비개폐스위치가 온되고 상기 발전기변환기개폐스위치 및 상기 변환기육상부하설비개폐스위치가 오프되도록 제어하며, 상기 상용전원단독공급모드가 선택되거나 또는 상기 병행공급모드가 선택될 때 상기 상용전원주파수변환부가 상기 변환기입력단에 연결되고 상기 발전기육상부하공급모드가 선택될 때 상기 발전기주파수변환부가 상기 변환기입력단에 연결되도록 상기 주파수변환스위칭부를 제어하는 제어부를 포함하는 것을 특징으로 하는 선박전력공급시스템에 의해 달성된다.The object is, according to the present invention, in the ship power supply system for supplying power to the ship load facility installed in the ship, the commercial voltage is installed on the ground to be electrically connected to the ship load facility, and outputs a commercial power supply voltage A power supply unit; A generator installed in the ship and outputting a generator voltage having a frequency equal to the voltage applied to the ship load facility; It is installed on the ship, and the frequency of the commercial power supply voltage interposed between the converter input terminal and the converter output terminal and the converter input terminal and the converter output terminal and input through the converter input terminal, The frequency of the generator voltage interposed between the converter input terminal and the converter output terminal so as to be parallel to the commercial power frequency conversion unit and the commercial power frequency conversion unit for converting the frequency and output to the converter output terminal is input through the converter input terminal. A converter frequency converter converts the frequency of the land load equipment voltage and outputs the signal to the converter output stage, and selectively converts the converter input stage to either one of the commercial power frequency converter and the generator frequency converter according to a control signal from the outside. Action to connect Have parts of the switching frequency conversion, through the converter input terminal and electrically coupled to the generator and the commercial power source voltage frequency, which is installed so as to be electrically connected to the land-load facility and the ship loading facilities through the converter and the output converter; A commercial power converter switching switch disposed between the converter input terminal and the commercial voltage power supply unit, the commercial power converter opening and closing switch for turning on and off an electrical connection between the converter input terminal and the commercial voltage power supply unit according to a control signal from the outside; A converter ship load facility switching switch installed between the converter output end and the ship load facility and for turning on and off an electrical connection between the converter output end and the ship load facility according to a control signal from the outside; A generator converter switching switch installed between the converter input terminal and the generator, the generator converter opening and closing switch turning on and off an electrical connection between the converter input terminal and the generator according to a control signal from the outside; A generator load facility opening and closing switch installed between the ship load facility and the generator and turning on and off an electrical connection between the ship load facility and the generator according to a control signal from the outside; A converter land load facility opening and closing switch disposed between the converter output end and the land load facility and for turning on and off an electrical connection between the converter output end and the land load facility according to a control signal from the outside; When the commercial power single supply mode for supplying the commercial power voltage to the ship load facility is selected, the commercial power converter open / close switch and the converter ship load facility open / close switch are turned on and the generator converter open / close switch and the converter land load facility are turned on. The generator converter open / close switch and the converter ground load facility open / close switch are controlled when the on / off switch and the generator load facility open / close switch are turned off and the generator land load supply mode for supplying the generator voltage to the land load facility is selected. A parallel supply mode for turning on and off the commercial power converter open / close switch, the converter ship load facility open / close switch and the generator load facility open / close switch, and simultaneously supply the commercial power voltage and the generator voltage to the ship load facility. Is selected when the commercial power converter The closed switch, the converter ship load facility opening and closing switch and the generator load facility opening and closing switch are turned on, and the generator converter opening and closing switch and the converter ground load facility opening and closing switch are turned off, and the commercial power supply alone supply mode is selected or the And a control unit for controlling the frequency conversion switching unit such that the commercial power frequency conversion unit is connected to the converter input terminal when the parallel supply mode is selected and the generator frequency conversion unit is connected to the converter input terminal when the generator land load supply mode is selected. It is achieved by the ship power supply system characterized in that.

여기서 발전기로부터 육상부하설비에 공급되는 전압레벨을 선택할 수 있도록, 상기 변환기출력단과 상기 변환기선박부하설비개폐스위치 사이에 개재된 변압기를 더 포함하는 것이 바람직하다.In this case, it is preferable to further include a transformer interposed between the converter output stage and the converter ship load equipment opening and closing switch so as to select the voltage level supplied from the generator to the land load equipment.

따라서 본 발명에 따르면, 상용전원단독공급모드 또는 병행공급모드가 아닌 상태에서 주파수변환기를 경유하여 발전기와 육상부하설비 사이를 전기적으로 연결할 수 있도록 함으로써, 선박에 설치된 발전기를 육상부하설비(202)에 전력을 공급하는데 사용할 수 있고, 육상부하설비를 통해 발전기를 테스트할 수 있다.Therefore, according to the present invention, by enabling the electrical connection between the generator and the land load equipment via the frequency converter in a state other than the commercial power alone supply mode or parallel supply mode, the generator installed in the ship to the land load equipment 202 It can be used to supply power, and the generator can be tested via the onshore load facility.

도1은 본 발명의 실시예에 따른 선박전력공급시스템의 전체 구성도,
도2는 본 발명의 실시예에 따른 선박전력공급시스템의 제어블럭도,
도3은 종래 선박전력공급시스템의 전체구성도,
도4는 종래 선박전력공급시스템의 제어블럭도이다.1 is an overall configuration diagram of a ship power supply system according to an embodiment of the present invention;
2 is a control block diagram of a ship power supply system according to an embodiment of the present invention;
3 is an overall configuration diagram of a conventional ship power supply system,
4 is a control block diagram of a conventional ship power supply system.

이하에서, 첨부도면을 참조하여 본 발명을 상세히 설명하기로 한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도1은 본 발명의 실시예에 따른 선박전력공급시스템의 전체 구성도이고, 도2는 본 발명의 실시예에 따른 선박전력공급시스템의 제어블럭도이다.1 is an overall configuration diagram of a ship power supply system according to an embodiment of the present invention, Figure 2 is a control block diagram of a ship power supply system according to an embodiment of the present invention.

본 발명의 실시예에 따른 선박전력공급시스템은, 이들 도면에 도시된 바와 같이, 지상에 설치된 상용전압전원부(11)와, 선박에 설치된 발전기(12)와, 상용전압전원부(11)와 선박부하설비(201) 사이에 배치된 주파수변환기(20)와, 주파수변환기(20)와 선박부하설비(201) 사이에 배치된 변압기(13)와, 상용전압전원부(11), 발전기(12), 주파수변환기(20), 선박부하설비(201) 및 육상부하설비(202) 사이의 전기적 연결을 개폐하는 상용전원변환기개폐스위치(SW3), 변환기선박부하설비개폐스위치(SW1), 발전기부하설비개폐스위치(SW2), 발전기변환기개폐스위치(SW4) 및 변환기육상부하설비개폐스위치(SW5)와, 이들 스위치와 주파수변환기(20)의 동작을 제어하는 제어부(14)를 갖고 있다.Ship power supply system according to an embodiment of the present invention, as shown in these figures, the commercial voltage power supply unit 11 installed on the ground, the generator 12 installed on the vessel, the commercial voltage power supply unit 11 and the ship load Frequency converter 20 disposed between facilities 201, transformer 13 arranged between frequency converter 20 and ship load facility 201, commercial voltage power supply unit 11, generator 12, frequency Commercial power converter open and close switch (SW3), converter ship load facility open and close switch (SW1), generator load facility open and close switch (22) to open and close the electrical connection between the converter 20, the ship load facility 201 and the land load facility (202) SW2), generator converter open / close switch SW4 and converter land load facility open / close switch SW5, and a control unit 14 for controlling the operation of these switches and the frequency converter 20.

상용전압전원부(11)는 상용전원전압을 출력한다. 상용전압전원부(11)는 한전 등 전력공급회사가 보유하는 발전소가 될 수 있다.The commercial voltage power supply unit 11 outputs a commercial power supply voltage. The commercial voltage power supply unit 11 may be a power plant held by a power supply company such as KEPCO.

발전기(12)는 선박부하설비(201)에 인가되는 전압과 같은 크기의 주파수를 갖는 발전기전압을 출력한다.The generator 12 outputs a generator voltage having a frequency equal to the voltage applied to the ship load facility 201.

주파수변환기(20)는 변환기입력단(21) 및 변환기출력단(22)과, 변환기입력단(21)과 변환기출력단(22) 사이에 개재된 상용전원주파수변환부(23) 및 발전기주파수변환부(24)와, 변환기입력단(21)을 상용전원주파수변환부(23)와 발전기주파수변환부(24) 중 어느 일방과 선택적으로 연결하도록 동작하는 주파수변환스위칭부(25)를 갖고 있다.The frequency converter 20 includes a converter input terminal 21 and a converter output terminal 22, a commercial power frequency converter 23 and a generator frequency converter 24 interposed between the converter input terminal 21 and the converter output terminal 22. And a frequency conversion switching unit 25 that operates to selectively connect the converter input terminal 21 to either one of the commercial power frequency conversion unit 23 and the generator frequency conversion unit 24.

상용전원주파수변환부(23)는 변환기입력단(21)을 통해 입력되는 상용전원전압의 주파수를 선박부하설비(201)에 인가할 전압의 주파수로 변환하여 변환기출력단(22)으로 출력한다.The commercial power frequency converting unit 23 converts the frequency of the commercial power supply voltage input through the converter input terminal 21 into a frequency of a voltage to be applied to the ship load facility 201 and outputs it to the converter output terminal 22.

발전기주파수변환부(24)는 상용전원주파수변환부(23)에 대하여 병렬을 이루도록 변환기입력단(21)과 변환기출력단(22) 사이에 개재되어 변환기입력단(21)을 통해 입력되는 발전기전압의 주파수를 육상부하설비전압의 주파수로 변환하여 변환기출력단(22)으로 출력한다. 여기서 육상부하설비전압은 지상에 설치된 육상부하설비가 필요로 하는 전압을 의미한다. 육상부하설비로는 조선소에 설치된 선박건조설비 등이 될 수 있다.The generator frequency converter 24 is interposed between the converter input terminal 21 and the converter output terminal 22 so as to be parallel to the commercial power source frequency converter 23 to output the frequency of the generator voltage input through the converter input terminal 21. The frequency is converted into the frequency of the land load equipment voltage and output to the converter output stage 22. Here, the land load facility voltage means a voltage required by the land load facility installed on the ground. The land load facility may be a ship building facility installed in a shipyard.

주파수변환스위칭부(25)는 제어부(14)로부터의 제어신호에 따라 변환기입력단(21)을 상용전원주파수변환부(23)와 발전기주파수변환부(24) 중 어느 일방과 선택적으로 연결한다.The frequency conversion switching unit 25 selectively connects the converter input terminal 21 to any one of the commercial power source frequency conversion unit 23 and the generator frequency conversion unit 24 according to the control signal from the control unit 14.

이러한 구성을 갖는 주파수변환기(20)는 변환기입력단(21)을 통해 상용전압전원부(11)와 발전기(12)에 전기적으로 연결되고, 변환기출력단(22)을 통해 선박부하설비(201)와 육상부하설비(202)에 전기적으로 연결된다.The frequency converter 20 having such a configuration is electrically connected to the commercial voltage power supply unit 11 and the generator 12 through the converter input terminal 21, and the ship load facility 201 and the land load through the converter output terminal 22. Is electrically connected to the facility 202.

변압기(13)는 변환기출력단(22)과 변환기선박부하설비개폐스위치(SW1) 사이에 개재되어 있다. 여기서 변압기(13)는 단권형태는 물론 복권형태로 구성할 수 있다. 변압기(13)를 복권형태로 구성하는 경우 상용전원단독공급모드(상용전원전압을 선박부하설비에 공급하기 위한 모드)에서 발전기육상부하공급모드(발전기전압을 육상부하설비에 공급하기 위한 모드)로 또는 병행공급모드(상용전원전압과 발전기전압을 동시에 선박부하설비에 공급하기 위한 모드)에서 발전기육상부하공급모드로 변환되기 전에 변압기(13) 출력탭을 수작업으로 선택하게 된다(변압기와 변환기육상부하설비개폐스위치 사이의 전기적 연결을 선택함).The transformer 13 is interposed between the converter output stage 22 and the converter ship load equipment switching switch SW1. Here, the transformer 13 may be configured in a lottery form as well as a single winding form. When the transformer 13 is configured in the form of a lottery, the commercial power single supply mode (the mode for supplying the commercial power voltage to the ship load equipment) from the generator land load supply mode (the mode for supplying the generator voltage to the land load equipment) Alternatively, the transformer 13 output tap is manually selected (transformer and converter land load) before being switched from the parallel supply mode (a mode for simultaneously supplying the commercial power supply voltage and the generator voltage to the ship load facility) to the generator land load supply mode. Selects the electrical connection between the opening and closing switches).

상용전원변환기개폐스위치(SW3)는 변환기입력단(21)과 상용전압전원부(11) 사이에 설치되고, 제어부(14)로부터의 제어신호에 따라 변환기입력단(21)과 상용전압전원부(11) 사이의 전기적 연결을 온오프하도록 동작한다.The commercial power converter switching switch SW3 is installed between the converter input terminal 21 and the commercial voltage power supply unit 11, and between the converter input terminal 21 and the commercial voltage power supply unit 11 in accordance with a control signal from the control unit 14. Operate to turn on and off electrical connections.

변환기선박부하설비개폐스위치(SW1)는 변환기출력단(22)과 선박부하설비(201) 사이에 설치되고, 제어부(14)로부터의 제어신호에 따라 변환기출력단(22)과 선박부하설비(201) 사이의 전기적 연결을 온오프하도록 작용한다.The converter ship load equipment opening and closing switch SW1 is installed between the converter output stage 22 and the ship load equipment 201 and between the converter output stage 22 and the ship load equipment 201 in accordance with a control signal from the control unit 14. Acts to turn the electrical connection on and off.

발전기부하설비개폐스위치(SW2)는 선박부하설비(201)와 발전기(12) 사이에 설치되고, 제어부(14)로부터의 제어신호에 따라 선박부하설비(201)와 발전기(12) 사이의 전기적 연결을 온오프하도록 동작한다.The generator load facility open / close switch SW2 is installed between the ship load facility 201 and the generator 12 and is electrically connected between the ship load facility 201 and the generator 12 according to a control signal from the controller 14. To turn on and off.

발전기변환기개폐스위치(SW4)는 변환기입력단(21)과 발전기(12) 사이에 설치되고, 제어부(14)로부터의 제어신호에 따라 변환기입력단(21)과 발전기(12) 사이의 전기적 연결을 온오프하도록 동작한다.The generator converter open / close switch (SW4) is installed between the converter input terminal 21 and the generator 12, the electrical connection between the converter input terminal 21 and the generator 12 on and off in accordance with a control signal from the control unit 14. To work.

변환기육상부하설비개폐스위치(SW5)는 변환기출력단(22)과 육상부하설비(202) 사이에 설치되고, 제어부(14)로부터의 제어신호에 따라 변환기출력단(22)과 육상부하설비(202) 사이의 전기적 연결을 온오프하도록 동작한다.The converter land load facility opening and closing switch SW5 is installed between the converter output stage 22 and the land load facility 202, and between the converter output end 22 and the land load facility 202 in accordance with a control signal from the control unit 14. To turn the electrical connection on and off.

전술한 상용전원변환기개폐스위치(SW3), 변환기선박부하설비개폐스위치(SW1), 발전기부하설비개폐스위치(SW2), 발전기변환기개폐스위치(SW4) 및 변환기육상부하설비개폐스위치(SW5)는 SCR(Silicon Controlled Rectifier)과 같은 전력용 스위치를 사용하여 구현되어 있다.The aforementioned commercial power converter open / close switch (SW3), converter ship load equipment switch (SW1), generator load equipment switch (SW2), generator converter switch switch (SW4) and converter land load equipment switch (SW5) are SCR ( It is implemented using power switches such as Silicon Controlled Rectifiers.

제어부(14)는 입력단에 운용자단말기(203)가 연결되어 있고, 출력단에는 상용전원변환기개폐스위치(SW3), 변환기선박부하설비개폐스위치(SW1), 발전기부하설비개폐스위치(SW2), 발전기변환기개폐스위치(SW4), 변환기육상부하설비개폐스위치(SW5) 및 주파수변환스위칭부(25)가 연결되어 있다.The control unit 14 has an operator terminal 203 connected to an input terminal, and a commercial power converter switching switch (SW3), a converter ship load equipment switch (SW1), a generator load equipment switch (SW2), and a generator converter switch at an output terminal. A switch SW4, a converter land load facility opening and closing switch SW5, and a frequency conversion switching unit 25 are connected.

이러한 구성을 갖는 제어부(14)의 제어동작을 설명하면 다음과 같다.The control operation of the control unit 14 having such a configuration will be described below.

운용자단말기(203)를 통해 상용전원전압을 선박부하설비(201)에 공급하기 위한 상용전원단독공급모드를 선택하는 명령이 제어부(14)로 입력되면, 제어부(14)는 상용전원변환기개폐스위치(SW3) 및 변환기선박부하설비개폐스위치(SW1)가 온되고, 발전기변환기개폐스위치(SW4) 및 변환기육상부하설비개폐스위치(SW5)가 오프되도록 제어한다.When a command to select a commercial power supply alone supply mode for supplying the commercial power supply voltage to the ship load facility 201 through the operator terminal 203 is input to the control unit 14, the control unit 14 is a commercial power converter switch ( SW3) and the converter ship load equipment switch SW1 are turned on, and the generator converter switch switch SW4 and the converter land load equipment switch SW5 are turned off.

그리고 제어부(14)는 상용전원단독공급모드가 선택될 때 발전기부하설비개폐스위치(SW2)가 오프되도록 제어하고, 상용전원주파수변환부(23)가 변환기입력단(21)에 연결되도록 주파수변환스위칭부(25)를 제어한다.The control unit 14 controls the generator load facility switching switch SW2 to be turned off when the commercial power supply mode alone is selected, and the frequency conversion switching unit such that the commercial power frequency conversion unit 23 is connected to the converter input terminal 21. To control (25).

상용전원단독공급모드가 선택되면 상용전압전원부(11)의 출력전압은 상용전원주파수변환부(23)에서의 주파수변환과정 및 변압기(13)에서의 전압레벨변환과정을 거쳐 선박부하설비(201)에 인가되고, 이에 따라 상용전압전원부(11)로부터 선박부하설비(201)에 전력이 공급된다.When the commercial power supply alone mode is selected, the output voltage of the commercial voltage power supply unit 11 is subjected to the frequency conversion process in the commercial power frequency conversion unit 23 and the voltage level conversion process in the transformer 13, the vessel load facility 201 Is applied to the ship load facility 201 from the commercial voltage power supply unit 11.

상용전원전압과 발전기전압을 동시에 선박부하설비(201)에 공급하기 위한 병행공급모드를 선택하는 명령이 제어부(14)로 입력되면, 제어부(14)는 상용전원변환기개폐스위치(SW3), 변환기선박부하설비개폐스위치(SW1) 및 발전기부하설비개폐스위치(SW2)가 온되고, 발전기변환기개폐스위치(SW4) 및 변환기육상부하설비개폐스위치(SW5)가 오프되도록 제어한다.When a command for selecting a parallel supply mode for simultaneously supplying the commercial power supply voltage and the generator voltage to the ship load facility 201 is input to the control unit 14, the control unit 14 switches the commercial power converter open / close switch (SW3) and the converter ship. The load facility switch SW1 and the generator load facility switch SW2 are turned on, and the generator converter switch switch SW4 and the converter land load facility switch SW5 are controlled to be turned off.

그리고 병행공급모드가 선택될 때, 제어부(14)는 상용전원주파수변환부(23)가 변환기입력단(21)에 연결되도록 주파수변환스위칭부(25)를 제어한다.When the parallel supply mode is selected, the control unit 14 controls the frequency conversion switching unit 25 so that the commercial power frequency conversion unit 23 is connected to the converter input terminal 21.

병행공급모드가 선택되면 상용전압전원부(11)의 출력전압은 상용전원주파수변환부(23)에서의 주파수변환과정 및 변압기(13)에서의 전압레벨변환과정을 거쳐 선박부하설비(201)에 인가됨과 동시에 발전기(12)의 출력전압이 선박부하설비(201)에 인가되고, 이에 따라 상용전압전원부(11)와 발전기(12)로부터 선박부하설비(201)에 전력이 공급된다.When the parallel supply mode is selected, the output voltage of the commercial voltage power supply unit 11 is applied to the ship load facility 201 through the frequency conversion process in the commercial power frequency conversion unit 23 and the voltage level conversion process in the transformer 13. At the same time, the output voltage of the generator 12 is applied to the ship load facility 201, and thus power is supplied from the commercial voltage power supply unit 11 and the generator 12 to the ship load facility 201.

운용자단말기(203)를 통해 발전기전압을 육상부하설비(202)에 공급하기 위한 발전기육상부하공급모드를 선택하는 명령이 제어부(14)로 입력되면, 제어부(14)는 발전기변환기개폐스위치(SW4) 및 변환기육상부하설비개폐스위치(SW5)가 온되고, 상용전원변환기개폐스위치(SW3), 변환기선박부하설비개폐스위치(SW1) 및 발전기부하설비개폐스위치(SW2)가 오프되도록 제어한다.When a command for selecting the generator land load supply mode for supplying the generator voltage to the land load facility 202 through the operator terminal 203 is input to the controller 14, the controller 14 switches the generator converter switch SW4. And the converter land load equipment switch SW5 is turned on, and the commercial power converter switch switch SW3, the converter ship load equipment switch SW1 and the generator load equipment switch SW2 are turned off.

그리고 발전기육상부하공급모드가 선택될 때, 제어부(14)는 발전기주파수변환부(24)가 변환기입력단(21)에 연결되도록 주파수변환스위칭부(25)를 제어한다.And when the generator land load supply mode is selected, the control unit 14 controls the frequency conversion switching unit 25 so that the generator frequency conversion unit 24 is connected to the converter input terminal 21.

발전기육상부하공급모드가 선택되면, 발전기(12)의 출력전압은 발전기주파수변환부(24)에서의 주파수변환과정 및 변압기(13)에서의 전압레벨변환과정을 거쳐 육상부하설비(202)에 인가되고, 이에 따라 발전기(12)로부터 육상부하설비(202)에 전력이 공급된다.When the generator land load supply mode is selected, the output voltage of the generator 12 is applied to the land load facility 202 through a frequency conversion process in the generator frequency converter 24 and a voltage level conversion process in the transformer 13. Accordingly, power is supplied from the generator 12 to the land load facility 202.

한편 발전기(12)의 테스트는 발전기육상부하공급모드 상태에서 육상부하설비(202)를 통해 이루어진다.Meanwhile, the test of the generator 12 is performed through the land load facility 202 in the generator land load supply mode.

상술한 바와 같이 본 발명의 실시예에 따르면, 상용전원단독공급모드 또는 병행공급모드가 아닌 상태에서 주파수변환기(20)를 경유하여 발전기(12)와 육상부하설비(202) 사이를 전기적으로 연결할 수 있도록 함으로써, 선박에 설치된 발전기(12)를 육상부하설비(202)에 전력을 공급하는데 사용할 수 있고, 육상부하설비(202)를 통해 발전기(12)를 테스트할 수 있게 된다.According to the embodiment of the present invention as described above, it is possible to electrically connect between the generator 12 and the land load facility 202 via the frequency converter 20 in a non-commercial power supply alone or parallel supply mode. By doing so, the generator 12 installed in the ship can be used to supply power to the land load facility 202, and the generator 12 can be tested through the land load facility 202.

그리고 변압기(13)를 추가함으로써, 발전기(12)로부터 육상부하설비(202)에 인가되는 전압레벨을 선택할 수 있게 된다.By adding the transformer 13, the voltage level applied from the generator 12 to the land load facility 202 can be selected.

11, 111 : 상용전압전원부 12, 112 : 발전기
13, 113 : 변압기 14, 114 : 제어부
20, 120 : 주파수변환기 23 : 상용전원주파수변환부
24 : 발전기주파수변환부 25 : 주파수변환스위칭부
SW1 ~ SW5 : 스위치11, 111: commercial voltage power supply unit 12, 112: generator
13, 113: transformer 14, 114: control unit
20, 120: frequency converter 23: commercial power frequency converter
24: generator frequency conversion unit 25: frequency conversion switching unit
SW1 ~ SW5: switch

Claims (2)

선박에 설치된 선박부하설비에 전력을 공급하기 위한 선박전력공급시스템에 있어서,
지상에 설치되고, 상용전원전압을 출력하는 상용전압전원부와;
선박에 설치되고, 상기 선박부하설비에 인가되는 전압과 같은 크기의 주파수를 갖는 발전기전압을 출력하는 발전기와;
선박에 설치되고, 변환기입력단 및 변환기출력단과 상기 변환기입력단과 상기 변환기출력단 사이에 개재되어 상기 변환기입력단을 통해 입력되는 상용전원전압의 주파수를 지상에 설치된 육상부하설비가 필요로 하는 육상부하설비전압의 주파수로 변환하여 상기 변환기출력단으로 출력하는 상용전원주파수변환부와 상기 상용전원주파수변환부에 대하여 병렬을 이루도록 상기 변환기입력단과 상기 변환기출력단 사이에 개재되어 상기 변환기입력단을 통해 입력되는 발전기전압의 주파수를 상기 육상부하설비전압의 주파수로 변환하여 상기 변환기출력단으로 출력하는 발전기주파수변환부와 외부로부터의 제어신호에 따라 상기 변환기입력단을 상기 상용전원주파수변환부와 상기 발전기주파수변환부 중 어느 일방과 선택적으로 연결하도록 동작하는 주파수변환스위칭부를 가지고, 상기 변환기입력단을 통해 상기 상용전압전원부와 상기 발전기에 전기적으로 연결되고 상기 변환기출력단을 통해 상기 선박부하설비와 상기 육상부하설비에 전기적으로 연결되도록 설치되는 주파수변환기와;
상기 변환기입력단과 상기 상용전압전원부 사이에 설치되고, 외부로부터의 제어신호에 따라 상기 변환기입력단과 상기 상용전압전원부 사이의 전기적 연결을 온오프하는 상용전원변환기개폐스위치와;
상기 변환기출력단과 상기 선박부하설비 사이에 설치되고, 외부로부터의 제어신호에 따라 상기 변환기출력단과 상기 선박부하설비 사이의 전기적 연결을 온오프하는 변환기선박부하설비개폐스위치와;
상기 변환기입력단과 상기 발전기 사이에 설치되고, 외부로부터의 제어신호에 따라 상기 변환기입력단과 상기 발전기 사이의 전기적 연결을 온오프하는 발전기변환기개폐스위치와;
상기 선박부하설비와 상기 발전기 사이에 설치되고, 외부로부터의 제어신호에 따라 상기 선박부하설비와 상기 발전기 사이의 전기적 연결을 온오프하는 발전기부하설비개폐스위치와;
상기 변환기출력단과 상기 육상부하설비 사이에 설치되고, 외부로부터의 제어신호에 따라 상기 변환기출력단과 상기 육상부하설비 사이의 전기적 연결을 온오프하는 변환기육상부하설비개폐스위치와;
상기 상용전원전압을 상기 선박부하설비에 공급하기 위한 상용전원단독공급모드가 선택될 때 상기 상용전원변환기개폐스위치 및 상기 변환기선박부하설비개폐스위치가 온되고 상기 발전기변환기개폐스위치, 상기 변환기육상부하설비개폐스위치 및 상기 발전기부하설비개폐스위치가 오프되도록 제어하고, 상기 발전기전압을 상기 육상부하설비에 공급하기 위한 발전기육상부하공급모드가 선택될 때 상기 발전기변환기개폐스위치 및 상기 변환기육상부하설비개폐스위치가 온되고 상기 상용전원변환기개폐스위치, 상기 변환기선박부하설비개폐스위치 및 상기 발전기부하설비개폐스위치가 오프되도록 제어하고, 상기 상용전원전압과 상기 발전기전압을 동시에 상기 선박부하설비에 공급하기 위한 병행공급모드가 선택될 때 상기 상용전원변환기개폐스위치, 상기 변환기선박부하설비개폐스위치 및 상기 발전기부하설비개폐스위치가 온되고 상기 발전기변환기개폐스위치 및 상기 변환기육상부하설비개폐스위치가 오프되도록 제어하며, 상기 상용전원단독공급모드가 선택되거나 또는 상기 병행공급모드가 선택될 때 상기 상용전원주파수변환부가 상기 변환기입력단에 연결되고 상기 발전기육상부하공급모드가 선택될 때 상기 발전기주파수변환부가 상기 변환기입력단에 연결되도록 상기 주파수변환스위칭부를 제어하는 제어부를 포함하는 것을 특징으로 하는 선박전력공급시스템.In the ship power supply system for supplying power to the ship load equipment installed on the ship,
A commercial voltage power supply unit installed on the ground and outputting a commercial power supply voltage;
A generator installed in the ship and outputting a generator voltage having a frequency equal to the voltage applied to the ship load facility;
It is installed on the ship, and the frequency of the commercial power supply voltage interposed between the converter input terminal and the converter output terminal and the converter input terminal and the converter output terminal and input through the converter input terminal, The frequency of the generator voltage interposed between the converter input terminal and the converter output terminal so as to be parallel to the commercial power frequency conversion unit and the commercial power frequency conversion unit for converting the frequency and output to the converter output terminal is input through the converter input terminal. A converter frequency converter converts the frequency of the land load equipment voltage and outputs the signal to the converter output stage, and selectively converts the converter input stage to either one of the commercial power frequency converter and the generator frequency converter according to a control signal from the outside. Action to connect Have parts of the switching frequency conversion, through the converter input terminal and electrically coupled to the generator and the commercial power source voltage frequency, which is installed so as to be electrically connected to the land-load facility and the ship loading facilities through the converter and the output converter;
A commercial power converter switching switch disposed between the converter input terminal and the commercial voltage power supply unit, the commercial power converter opening and closing switch for turning on and off an electrical connection between the converter input terminal and the commercial voltage power supply unit according to a control signal from the outside;
A converter ship load facility switching switch installed between the converter output end and the ship load facility and for turning on and off an electrical connection between the converter output end and the ship load facility according to a control signal from the outside;
A generator converter switching switch installed between the converter input terminal and the generator, the generator converter opening and closing switch turning on and off an electrical connection between the converter input terminal and the generator according to a control signal from the outside;
A generator load facility opening and closing switch installed between the ship load facility and the generator and turning on and off an electrical connection between the ship load facility and the generator according to a control signal from the outside;
A converter land load facility opening and closing switch disposed between the converter output end and the land load facility and for turning on and off an electrical connection between the converter output end and the land load facility according to a control signal from the outside;
When the commercial power single supply mode for supplying the commercial power voltage to the ship load facility is selected, the commercial power converter open / close switch and the converter ship load facility open / close switch are turned on and the generator converter open / close switch and the converter land load facility are turned on. The generator converter open / close switch and the converter ground load facility open / close switch are controlled when the on / off switch and the generator load facility open / close switch are turned off and the generator land load supply mode for supplying the generator voltage to the land load facility is selected. A parallel supply mode for turning on and off the commercial power converter open / close switch, the converter ship load facility open / close switch and the generator load facility open / close switch, and simultaneously supply the commercial power voltage and the generator voltage to the ship load facility. Is selected when the commercial power converter The switch, the converter ship load facility opening and closing switch and the generator load facility opening and closing switch are turned on, and the generator converter opening and closing switch and the converter land load facility opening and closing switch are turned off, and the commercial power supply supply mode is selected or the And a control unit for controlling the frequency conversion switching unit such that the commercial power frequency conversion unit is connected to the converter input terminal when the parallel supply mode is selected and the generator frequency conversion unit is connected to the converter input terminal when the generator land load supply mode is selected. Ship power supply system, characterized in that. 제1항에 있어서,
상기 변환기출력단과 상기 변환기선박부하설비개폐스위치 사이에 개재된 변압기를 더 포함하는 것을 특징으로 하는 선박전력공급시스템.The method of claim 1,
And a transformer interposed between the converter output stage and the converter ship load facility opening and closing switch.
KR1020120008214A 2012-01-27 2012-01-27 Power supply system for ship KR101253997B1 (en)

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KR20190098662A (en) 2018-02-14 2019-08-22 한국조선해양 주식회사 Power supply system based on dc grid for ship with shore power connection
KR20200048260A (en) 2018-10-29 2020-05-08 대우조선해양 주식회사 Hybrid propulsion system capable of sailing at optimal efficiency
KR20200136630A (en) 2019-05-28 2020-12-08 삼성중공업 주식회사 System for controlling electric power in floater
KR20220002332U (en) 2021-03-23 2022-09-30 주식회사 게이트웨이즈 Auxiliary Power Supply System for Small Ship

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Publication number Priority date Publication date Assignee Title
KR20190098662A (en) 2018-02-14 2019-08-22 한국조선해양 주식회사 Power supply system based on dc grid for ship with shore power connection
KR20190098661A (en) 2018-02-14 2019-08-22 한국조선해양 주식회사 Power supply system with transformer and ess in load side based on dc grid for ship
KR20190098663A (en) 2018-02-14 2019-08-22 한국조선해양 주식회사 Power supply system based on dc grid for ship with high-voltage generator and low-voltage dc main switchboard
KR20190098660A (en) 2018-02-14 2019-08-22 한국조선해양 주식회사 Power supplying system based on dc for thruster for ship
KR20190098664A (en) 2018-02-14 2019-08-22 한국조선해양 주식회사 Power supplying system based on dc for ship capable of bi-polar dc distribution
KR20200048260A (en) 2018-10-29 2020-05-08 대우조선해양 주식회사 Hybrid propulsion system capable of sailing at optimal efficiency
KR20200136630A (en) 2019-05-28 2020-12-08 삼성중공업 주식회사 System for controlling electric power in floater
KR20220002332U (en) 2021-03-23 2022-09-30 주식회사 게이트웨이즈 Auxiliary Power Supply System for Small Ship

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