KR20130124747A - Active railway feeding system and method without insulation section for large power ac traction supply - Google Patents

Active railway feeding system and method without insulation section for large power ac traction supply Download PDF

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KR20130124747A
KR20130124747A KR1020120048118A KR20120048118A KR20130124747A KR 20130124747 A KR20130124747 A KR 20130124747A KR 1020120048118 A KR1020120048118 A KR 1020120048118A KR 20120048118 A KR20120048118 A KR 20120048118A KR 20130124747 A KR20130124747 A KR 20130124747A
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railway
power
power supply
phase
converter
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KR1020120048118A
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Korean (ko)
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KR101369337B1 (en
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김형철
정호성
조용현
김주욱
박영
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한국철도기술연구원
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L9/00—Electric propulsion with power supply external to the vehicle
    • B60L9/16—Electric propulsion with power supply external to the vehicle using ac induction motors
    • B60L9/24—Electric propulsion with power supply external to the vehicle using ac induction motors fed from ac supply lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/04—Cutting off the power supply under fault conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/20—AC to AC converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/30—AC to DC converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/30—Railway vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Inverter Devices (AREA)

Abstract

The present invention relates to an active railway feeding system with a large capacity for an AC railway system without an insulation section and a method thereof. The active railway feeding system with the large capacity includes: a railway feeding device (100) which is composed of a converter transformer (110) which transforms AC three-phase electricity to be matched with an input voltage, a converter (120) which converts the AC three-phase electricity into DC, an inverter (130) which transforms the converted DC voltage into single AC, an inverter transformer (140) which transforms the converted single AC into power for operating a railway vehicle, a breaker (150) which protects a power system, and a power supply device (160) which supplies power to the railway vehicle through a trolley wire; and a central control server (200) which manages and controls the power transformation, control, and supply of an electric railway feeding system by remotely controlling the railway feeding device (100). According to the present invention, the speed of the railway is improved and the railway is easily controlled by supplying the power through a feeding system by active power control through the railway feeding system without an insulation section by an active electric railway substation and regenerative energy, and a current burden for improving power quality to prevent power imbalance and a voltage drop are reduced by supplying the power through the feeding system by the active power control through the railway feeding system without the insulation section by the active electric railway substation. The active railway feeding system is provided. [Reference numerals] (110) Converter transformer;(120) Converter;(130) Inverter;(140) Inverter transformer;(150) Breaker;(160) Power supply device;(170) Phase control device

Description

사구간이 없는 교류철도시스템용 대용량 능동형 철도급전시스템 및 그 방법{ACTIVE RAILWAY FEEDING SYSTEM AND METHOD WITHOUT INSULATION SECTION FOR LARGE POWER AC TRACTION SUPPLY}ACTIVE RAILWAY FEEDING SYSTEM AND METHOD WITHOUT INSULATION SECTION FOR LARGE POWER AC TRACTION SUPPLY}

본 발명은 사구간이 없는 교류철도시스템용 대용량 능동형 철도급전시스템에 관한 것으로 더욱 상세하게는, 교류 전기철도에서 대용량 전력을 공급하기 위해 기존의 수동적인 전철전력계통망이 아닌 능동적인 전력 제어를 통하여 급전계통을 구성하여 전력을 공급하는 기술에 관한 것이다.The present invention relates to a large-capacity active railway power supply system for an AC railway system without a cross section, and more specifically, through active power control rather than a conventional passive electric grid system to supply a large amount of power in an AC electric railway. It relates to a technology for supplying power by configuring a feed system.

종래의 교류급전시스템은 도 1에 도시된 바와 같이, 일반적으로 단권변압기 급전방식으로 Scott 변압기, 차단기를 포함한 전철변전소 및 급전구분소로 구성된다.Conventional AC power supply system is generally composed of a Scott transformer, a train substation including a circuit breaker and a feed section as shown in Figure 1, a single winding transformer feeding method.

철도에서의 속도 향상을 위해서는 동력분산식 차량, 차량의 대용량화, 고속화가 요구되고 있으나, 현행 시스템은 전력을 공급하는 급전설비의 경우 스코트 변압기를 이용한 수동적인 전력공급 시스템이 적용되고 있다.In order to improve the speed in the railroad, power dissipation type vehicles, large capacity and high speed of vehicles are required. However, in the current system, a passive power supply system using a Scott transformer is applied to a power supply facility that supplies electric power.

또한, 기존의 교류 급전방식은 일반 전력회사로부터 교류 3상 154kV를 수전하여 전철변전소에서 스코트변압기를 이용하여 전기차에 적합한 두 개의 단상 50kV(AT급전방식) 전압으로 변환하여 급전회로를 방면별 또는 상하선별로 공급하고 있기 때문에 사구간(절연구분장치)이 존재하는 단점이 있다.In addition, the existing AC power supply method receives three-phase 154kV AC from a general electric power company, converts the power supply circuit into two single-phase 50kV (AT power supply type) voltages suitable for electric vehicles by using a Scott transformer in a train substation. There is a disadvantage that there is a four-section (insulation separator) because it is supplied by sorting.

이에 따라, 위상이 다른 전원을 구분하기 위해 사구간내 전차선로에 설치된 절연구분장치의 경우 속도 감소 및 사고 발생 우려가 심한 문제점이 있다.Accordingly, in the case of the insulation separation apparatus installed in the tram line in the four-division section to distinguish the power of the different phase, there is a serious problem of speed reduction and accident occurrence.

또한, 스코트 변압기를 이용하는 급전방식은 철도차량 운행에 따라 전원측에 전압 불평형이 발생하고 철도차량의 증가에 따른 전압강하도 발생하는 문제점이 있다.In addition, the power feeding method using the Scott transformer has a problem that the voltage unbalance occurs on the power supply side according to the operation of the railway vehicle and also the voltage drop due to the increase of the railway vehicle.

또한, 교류 급전방식은 변전소간 위상이 달라 병렬급전이 불가능하여 단독급전을 수행해야만 하고, 급전계통이 분리되어 있어 효율적인 회생에너지의 활용이 미비한 문제점이 있다.In addition, the AC power supply method is different from the substation, so the parallel power supply is impossible to perform a single power supply, the power supply system is separated, there is a problem that the utilization of efficient regenerative energy is insufficient.

본 발명은 상기와 같은 문제점을 해결하고자 안출된 것으로, 능동형 전철변전소를 통하여 절연구간(사구간)이 없는 철도급전시스템을 구현하여 능동적인 전력 제어를 통하여 급전계통을 구성하여 전력을 공급함으로써, 철도의 속도를 향상시키고, 철도의 제어를 용이하게 함에 그 목적이 있다.The present invention has been made to solve the above problems, by implementing a railway power supply system without an insulation section (sector section) through an active train substation, by supplying power by configuring a power supply system through active power control, The purpose is to improve the speed of, and to facilitate the control of the railway.

그리고, 본 발명은 능동형 전철변전소를 통하여 절연구간(사구간)이 없는 철도급전시스템을 구현하여 능동적인 전력 제어를 통하여 급전계통을 구성하여 전력을 공급함으로써, 전력불평등 및 전압강하 등의 전력품질 향상 회생에너지와 전류분담을 줄이고, 능동형 전철전력급전시스템을 제공함에 그 목적이 있다.In addition, the present invention implements a railroad feeding system without an insulation section (four sections) through an active train substation, and configures a feeding system through active power control to supply power, thereby improving power quality such as power inequality and voltage drop. The purpose is to reduce the regenerative energy and current sharing, and to provide an active railway power supply system.

이러한 기술적 과제를 달성하기 위한 본 발명의 사구간이 없는 교류철도시스템용 대용량 능동형 철도급전시스템은, 교류 3상의 전기를 입력전압에 부합하도록 변환하는 컨버터 변압기(110)와, 교류 3상의 전기를 직류(DC)로 변환하는 컨버터(120)와, 변환된 직류 전압을 단상 AC로 변환하는 인버터(130)와, 변환된 단상 AC를 철도차량 운행을 위한 전력으로 변환하는 인버터 변압기(140)와, 전력계통을 보호하는 차단장치(150)와, 전차선을 통해 철도차량으로 전원을 공급하는 전원공급장치(160)로 구성된 철도급전장치(100); 및 철도급전장치(100)를 원격으로 제어하여 전기철도 급전시스템의 전력변환, 제어 및 전력공급의 운영을 관리 및 제어하는 중앙관리서버(200);를 포함한다.
In order to achieve the above technical problem, a large-capacity active railway power supply system for an AC railway system without a four-segment of the present invention includes a converter transformer 110 for converting AC three-phase electricity to match an input voltage, and direct-current three-phase electricity. A converter 120 for converting to DC, an inverter 130 for converting the converted DC voltage to single-phase AC, an inverter transformer 140 for converting the converted single-phase AC to electric power for railroad vehicle operation, and power Railroad power supply device 100 consisting of a power supply device 160 for supplying power to a railroad car through a tram line, and a circuit breaker 150 to protect the system; And a central management server 200 that remotely controls the railway power supply device 100 to manage and control the operation of power conversion, control and power supply of the electric railway power supply system.

전술한 시스템을 기반으로 하는 본 발명의 사구간이 없는 교류철도시스템용 대용량 능동형 철도급전방법은, 컨버터 변압기(110)가 교류 3상의 전기를 컨버터(120)의 입력전압에 부합하도록 변환하는 (a) 단계; 컨버터(120)가 교류 3상의 전기를 직류(DC)로 변환하는 (b) 단계; 인버터(130)가 컨버터(120)에 의해 변환된 직류 전압을 단상 AC로 변환하는 (c) 단계; 인버터 변압기(140)가 인버터(130)에 의해 변환된 단상 AC를 철도차량 운행을 위한 전력인 25kV 60Hz로 변환하는 (d) 단계; 전원공급장치(160)가 전차선을 통해 철도차량으로 25kV 60Hz의 전원을 공급하는 (e) 단계; 및 위상제어장치(170)가 변전소간 쌍방향 통신을 통해 전력의 위상을 동기화하는 (f) 단계;를 포함한다.Based on the above-described system, a large-capacity active railroad power supply method for a four-rail AC railway system according to the present invention includes a method in which a converter transformer 110 converts AC three-phase electricity to match the input voltage of the converter 120 (a ) step; (B) the converter 120 converts electricity of three phases of alternating current into direct current (DC); (C) the inverter 130 converting the DC voltage converted by the converter 120 into single-phase AC; (D) converting, by the inverter transformer 140, single-phase AC converted by the inverter 130 to 25 kV 60 Hz, which is electric power for railroad vehicle operation; (E) the power supply device 160 supplying 25 kV 60 Hz power to the railroad car through a catenary; And (f) synchronizing the phase of the power through the bidirectional communication between the substations by the phase controller 170.

상기와 같은 본 발명에 따르면, 능동형 전철변전소를 통하여 절연구간(사구간)이 없는 철도급전시스템을 구현하여 능동적인 전력 제어를 통하여 급전계통을 구성하여 전력을 공급함으로써, 철도의 속도를 향상시키고, 철도의 제어를 용이하게 하는 효과가 있다.According to the present invention as described above, by implementing a railway power supply system without an insulating section (four sections) through an active train substation, by providing a power supply system through active power control to improve the speed of the railway, There is an effect of facilitating the control of the railway.

또한, 본 발명은 능동형 전철변전소를 통하여 절연구간(사구간)이 없는 철도급전시스템을 구현하여 능동적인 전력 제어를 통하여 급전계통을 구성하여 전력을 공급함으로써, 전력불평등 및 전압강하 등의 전력품질 향상 회생에너지와 전류분담을 줄이고, 능동형 전철전력급전시스템을 제공하는 효과가 있다.In addition, the present invention implements a railroad feeding system without an insulation section (four sections) through an active train substation, and configures a feeding system through active power control to supply power, thereby improving power quality such as power inequality and voltage drop. It has the effect of reducing the regenerative energy and current sharing, and providing an active railway power feeding system.

또한, 본 발명은 고조파 및 전력품질 보상장치 설비비용을 절감하고, 회생에너지 활용 및 급전손실 절감을 통한 전기에너지 절감 효과가 있다.In addition, the present invention has the effect of reducing the harmonics and power quality compensation device cost, electrical energy through the use of regenerative energy and reduced power loss.

또한, 본 발명은 절연구분구간(사구간)을 없앨 수 있어 그 구간내 속도 향상뿐만 아니라 절연구분장치로 인한 사고감소 및 전차선로 및 유지보수 비용을 감소하는 효과가 있다.In addition, the present invention can eliminate the insulation section (four sections) has the effect of reducing the accident and the tram line and maintenance costs due to the insulation partition device as well as the speed improvement in the section.

또한, 본 발명은 전압안정화 및 급전손실 저감을 통한 변전소 간 간격 확대, 연장급전을 고려한 설비용량 저감, 급전 전류 감소로 인한 전차선로 비용 및 유지보수 비용을 저감하는 효과가 있다.In addition, the present invention has the effect of reducing the distance between the substations through the stabilization of voltage and the loss of the feed loss, the capacity reduction in consideration of the extended power supply, the tram line cost and maintenance costs due to the reduced feed current.

그리고, 본 발명은 종래의 수동적인 전력공급 방식에서 전력전자를 활용한 능동적 전력공급 방식으로 전력제어가 가능한 효과가 있다.In addition, the present invention has the effect that the power control in the active power supply method using the power electronics in the conventional passive power supply method.

도 1은 종래의 교류급전시스템을 도시한 구성도.
도 2는 본 발명에 따른 사구간이 없는 교류철도시스템용 대용량 능동형 철도급전시스템을 도시한 구성도.
도 3은 종래의 급전시스템과 본 발명에 따른 사구간이 없는 교류철도시스템용 대용량 능동형 철도급전시스템의 구성을 비교한 도면.
도 4는 본 발명에 따른 사구간이 없는 교류철도시스템용 대용량 능동형 철도급전시스템의 전철변전소의 기본구성을 도시한 도면.
도 5는 본 발명에 따른 사구간이 없는 교류철도시스템용 대용량 능동형 철도급전시스템의 세부 구성요소를 도시한 구성도.
도 6은 본 발명에 따른 사구간이 없는 교류철도시스템용 대용량 능동형 철도급전시스템의 세부 구성요소를 도시한 또 다른 구성도.
도 7은 본 발명에 따른 사구간이 없는 교류철도시스템용 대용량 능동형 철도급전방법을 도시한 순서도.1 is a configuration diagram showing a conventional AC power supply system.
Figure 2 is a block diagram showing a large-capacity active railway power supply system for an AC railroad system without a four-sector according to the present invention.
Figure 3 is a view comparing the configuration of a large-capacity active railway power supply system for a conventional railroad system and the four-section railroad AC railway system according to the present invention.
Figure 4 is a view showing the basic configuration of a train substation of a large capacity active railway power supply system for an AC railway system without a four-section according to the present invention.
Figure 5 is a block diagram showing the detailed components of the large-capacity active railway power supply system for an AC railroad system without a four-sector according to the present invention.
Figure 6 is another configuration diagram showing the detailed components of the large-capacity active railway power supply system for an AC railroad system without a four-sector according to the present invention.
Figure 7 is a flow chart illustrating a large-capacity active railroad power supply method for a four-section railroad AC railway system according to the present invention.

본 발명의 구체적인 특징 및 이점들은 첨부도면에 의거한 다음의 상세한 설명으로 더욱 명백해질 것이다. 이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 발명자가 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야 할 것이다. 또한, 본 발명에 관련된 공지 기능 및 그 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는, 그 구체적인 설명을 생략하였음에 유의해야 할 것이다.Specific features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, terms and words used in the present specification and claims are to be interpreted in accordance with the technical idea of the present invention based on the principle that the inventor can properly define the concept of the term in order to explain his invention in the best way. It should be interpreted in terms of meaning and concept. It is to be noted that the detailed description of known functions and constructions related to the present invention is omitted when it is determined that the gist of the present invention may be unnecessarily blurred.

이하, 도 2를 참조하여 본 발명에 따른 사구간이 없는 교류철도시스템용 대용량 능동형 철도급전시스템(S)에 대해 살피면 아래와 같다.Hereinafter, referring to FIG. 2, a large-sized active railway power supply system (S) for an AC railway system without a cross section according to the present invention will be described below.

본 발명에 따른 사구간이 없는 교류철도시스템용 대용량 능동형 철도급전시스템(S)은, 교류 3상의 전기를 입력전압에 부합하도록 변환하는 컨버터 변압기(110)와, 교류 3상의 전기를 직류(DC)로 변환하는 컨버터(120)와, 변환된 직류 전압을 단상 AC로 변환하는 인버터(130)와, 변환된 단상 AC를 철도차량 운행을 위한 전력으로 변환하는 인버터 변압기(140)와, 전력계통을 보호하는 차단장치(150)와, 전차선을 통해 철도차량으로 전원을 공급하는 전원공급장치(160), 및 변전소간 쌍방향 통신을 통해 전력의 위상을 동기화 시키는 위상제어장치(170)를 포함하는 철도급전장치(100)와, 철도급전장치(100)를 원격으로 제어하여 전기철도 급전시스템의 전력변환, 제어 및 전력공급의 운영을 관리 및 제어하는 중앙관리서버(200)를 포함하여 구성된다.
Large capacity active railroad power supply system (S) for an AC railway system without a four-segment according to the present invention, the converter transformer 110 for converting the AC three-phase electricity to match the input voltage, and the DC three-phase electricity direct current (DC) Converter 120 for converting the power supply, inverter 130 for converting the converted DC voltage into single-phase AC, inverter transformer 140 for converting the converted single-phase AC into power for railroad vehicle operation, and protects the power system Railroad feeder including a shut-off device 150, a power supply device 160 for supplying power to a railway vehicle through a tram line, and a phase control device 170 for synchronizing the phase of power through bidirectional communication between substations. And a central management server 200 for remotely controlling the railway power supply device 100 to manage and control the operation of power conversion, control and power supply of the electric railway power supply system.

구체적으로 도 3에 도시된 바와 같이 종래의 급전시스템은 급전구분소(SP)와 급전보조구분소(SSP)를 포함하여 구성됨에 따라, 철도변전소(SS)와 급전구분소(SP) 구간에 절연구간(사구간)이 존재하게 된다.Specifically, as shown in FIG. 3, the conventional power supply system includes a power supply division (SP) and a power supply auxiliary division (SSP), and insulates the railroad substation (SS) and the power distribution division (SP). There will be a section.

그러나, 본 발명에 따른 사구간이 없는 교류철도시스템용 대용량 능동형 철도급전시스템(S)은 도 4에 도시된 바와 같이, 철도 변전소가 3상의 송전교류전압을 수전하여 정류기를 통해 DC전압으로 변환시키고, 변환된 DC전압을 단상 인버터를 통해 단상의 교류전압으로 변환하는 기술인바, 절연구간(사구간)이 존재하지 않게 된다.However, the large-capacity active railway power supply system (S) for an AC railway system without a cross section according to the present invention, as shown in Fig. 4, the railway substation receives a three-phase transmission exchange voltage and converts it into a DC voltage through a rectifier. As a result, a technology for converting the converted DC voltage into a single phase AC voltage through a single phase inverter does not exist.

즉, 본 발명에 따른 사구간이 없는 교류철도시스템용 대용량 능동형 철도급전시스템(S)은 전력제어가 가능하기 때문에 별도로 전력품질보상장치를 구성할 필요가 없고, 사구간이 없기 때문에 전차선의 복잡한 절연구분장치가 불필요한 구성이다.
That is, the large-capacity active railway power supply system (S) for the AC railway system without the four sections according to the present invention does not need to configure a power quality compensator separately because the power control is possible, and since there is no four sections, the complex insulation of the tram line The separator is unnecessary.

이하, 도 5 및 도 6을 참조하여 본 발명에 따른 사구간이 없는 교류철도시스템용 대용량 능동형 철도급전시스템(S)의 세부 구성요소에 대해 살피면 아래와 같다.Hereinafter, with reference to Figures 5 and 6 will be described in detail with respect to the detailed components of the large-capacity active railway power supply system (S) for the AC railway system without a four-section according to the present invention.

먼저, 컨버터 변압기(110)는 교류 3상의 전기를 컨버터(120)의 입력전압에 부합하도록 변환한다.First, the converter transformer 110 converts the AC three-phase electricity to match the input voltage of the converter 120.

또한, 컨버터(120)는 컨버터 변압기(110)와의 접속을 스위칭하는 스위칭밸브(121)와, 점호각 사용에 따른 고조파 및 무효전력 보상을 위한 필터 및 캐패시터 뱅크(122) 및, 직류 전류를 평활하기 위한 평활 리액터 및 DC 필터(123)로 구성된다.In addition, the converter 120 includes a switching valve 121 for switching the connection with the converter transformer 110, a filter and capacitor bank 122 for compensating harmonics and reactive power according to the use of a firing angle, and smoothing a DC current. It consists of a smoothing reactor and a DC filter 123.

아울러, 본 발명에 따른 컨버터(120)는 PWM 방식의 컨버터 사용으로 스위칭 손실이 크고 대용량 적용에 부적합한 단점을 극복하기 위해 다중펄스 컨버터로 구성된다.In addition, the converter 120 according to the present invention is composed of a multi-pulse converter in order to overcome the disadvantage of large switching losses and unsuitable for high-capacity applications by using a PWM type converter.

또한, 인버터(130)는 컨버터(120)에 의해 변환된 직류 전압을 단상 AC로 변환하고, 인버터 변압기(140)는 인버터(130)에 의해 변환된 단상 AC를 철도차량 운행을 위한 전력인 25kV 60Hz로 변환한다.In addition, the inverter 130 converts the DC voltage converted by the converter 120 into single-phase AC, and the inverter transformer 140 converts the single-phase AC converted by the inverter 130 to 25 kV 60 Hz, which is electric power for railroad vehicle operation. Convert to

또한, 차단장치(150)는 철도차량으로 공급되는 전력이 기 설정된 범위를 유지하도록 전원공급장치(160)로의 전원원공급량을 제어하고, 전원공급장치(160)는 전차선을 통해 철도차량으로 25kV 60Hz의 전원을 공급한다.In addition, the blocking device 150 controls the power supply amount to the power supply device 160 so that the power supplied to the railway vehicle maintains a preset range, the power supply device 160 is 25kV 60Hz through the tram line to the railway vehicle To supply power.

그리고, 위상제어장치(170)의 변전소간 쌍방향 통신을 통해 전력의 위상을 동기화 시키되, 쌍방향 통신은 GPS, 무선제어라인 또는 유선제어라인 중에 어느 하나의 통신에 의해 수행된다.Then, the phase of the power is synchronized through the bidirectional communication between the substations of the phase control device 170, the bidirectional communication is performed by any one of the communication of the GPS, wireless control line or wired control line.

이때, 철도차량으로의 전류 공급은, 철도차량의 양측에 위치한 변전소가 철도차량으로 전류를 공급하되, 공급하는 전류의 양은 각 선로의 임피던스에 의해 결정되고, 철도차량의 제동시 발생되는 회생에너지는 타 철도차량으로의 공급이 가능하다.
At this time, the current supply to the railroad cars, the substations located on both sides of the railroad cars supply the current to the railroad cars, the amount of current supplied is determined by the impedance of each line, the regenerative energy generated when the railroad cars brake Supply to other railway vehicles is possible.

이하, 도 7을 참조하여 본 발명에 따른 사구간이 없는 교류철도시스템용 대용량 능동형 철도급전방법에 대해 살피면 아래와 같다.Hereinafter, referring to FIG. 7, the following description will be given of a large-capacity active railroad feeding method for an AC railway system without a four-section section according to the present invention.

먼저, 컨버터 변압기(110)가 교류 3상의 전기를 컨버터(120)의 입력전압에 부합하도록 변환한다(S10).First, the converter transformer 110 converts the AC three-phase electricity to match the input voltage of the converter 120 (S10).

뒤이어, 컨버터(120)가 교류 3상의 전기를 직류(DC)로 변환한다(S20).Subsequently, the converter 120 converts electricity of three phases of alternating current into direct current (DC) (S20).

이어서, 인버터(130)가 컨버터(120)에 의해 변환된 직류 전압을 단상 AC로 변환한다(S30).Subsequently, the inverter 130 converts the DC voltage converted by the converter 120 into single-phase AC (S30).

뒤이어, 인버터 변압기(140)가 인버터(130)에 의해 변환된 단상 AC를 철도차량 운행을 위한 전력인 25kV 60Hz로 변환한다(S40).Subsequently, the inverter transformer 140 converts the single-phase AC converted by the inverter 130 to 25 kV 60 Hz, which is electric power for driving the railway vehicle (S40).

이어서, 전원공급장치(160)가 전차선을 통해 철도차량으로 25kV 60Hz의 전원을 공급한다(S50).Subsequently, the power supply device 160 supplies power of 25 kV 60 Hz to the railway vehicle through the tram line (S50).

그리고, 위상제어장치(170)가 변전소간 쌍방향 통신을 통해 전력의 위상을 동기화 시킨다(S60).Then, the phase control unit 170 synchronizes the phase of the power through the two-way communication between the substations (S60).

이상으로 본 발명의 기술적 사상을 예시하기 위한 바람직한 실시예와 관련하여 설명하고 도시하였지만, 본 발명은 이와 같이 도시되고 설명된 그대로의 구성 및 작용에만 국한되는 것이 아니며, 기술적 사상의 범주를 일탈함이 없이 본 발명에 대해 다수의 변경 및 수정이 가능함을 당업자들은 잘 이해할 수 있을 것이다. 따라서 그러한 모든 적절한 변경 및 수정과 균등 물들도 본 발명의 범위에 속하는 것으로 간주되어야 할 것이다.While the present invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It will be appreciated by those skilled in the art that numerous changes and modifications may be made without departing from the invention. And all such modifications and changes as fall within the scope of the present invention are therefore to be regarded as being within the scope of the present invention.

S: 사구간이 없는 교류철도시스템용 대용량 능동형 철도급전시스템
100: 철도급전장치 110: 컨버터 변압기
120: 컨버터 121: 스위칭밸브
122: 필터 및 캐패시터 뱅크 123: 평활 리액터 및 DC 필터
130: 인버터 140: 인버터 변압기
150: 차단장치 160: 전원공급장치
170: 위상제어장치 200: 중앙관리서버S: Large-capacity, active railroad feeding system for railroad systems without cross sections
100: railroad feeder 110: converter transformer
120: converter 121: switching valve
122: filter and capacitor bank 123: smoothing reactor and DC filter
130: inverter 140: inverter transformer
150: breaker 160: power supply
170: phase control device 200: central management server

Claims (4)

교류철도시스템용 대용량 능동형 철도급전시스템에 있어서,
교류 3상의 전기를 입력전압에 부합하도록 변환하는 컨버터 변압기(110)와, 교류 3상의 전기를 직류(DC)로 변환하는 컨버터(120)와, 변환된 직류 전압을 단상 AC로 변환하는 인버터(130)와, 변환된 단상 AC를 철도차량 운행을 위한 전력으로 변환하는 인버터 변압기(140)와, 전력계통을 보호하는 차단장치(150)와, 전차선을 통해 철도차량으로 전원을 공급하는 전원공급장치(160)로 구성된 철도급전장치(100); 및
상기 철도급전장치(100)를 원격으로 제어하여 전기철도 급전시스템의 전력변환, 제어 및 전력공급의 운영을 관리 및 제어하는 중앙관리서버(200);를 포함하는 것을 특징으로 하는 사구간이 없는 교류철도시스템용 대용량 능동형 철도급전시스템.In the large capacity active railway power supply system for the AC railway system,
Converter transformer 110 for converting three-phase alternating current to match the input voltage, converter 120 for converting three-phase alternating current to direct current (DC), and inverter 130 for converting the converted direct-current voltage into single-phase AC ), An inverter transformer 140 for converting the converted single-phase AC into electric power for railroad vehicle operation, a circuit breaker 150 for protecting the electric power system, and a power supply device for supplying power to the railroad car through the tramline ( Railroad feeding device 100 consisting of 160; And
Alternating current without a cross section comprising a; central control server 200 for remotely controlling the railway power supply device 100 to manage and control the operation of power conversion, control and power supply of the electric railway power supply system High-capacity, active railroad feeding system for railroad systems. 제 1 항에 있어서,
상기 철도급전장치(100)는,
교류 3상의 전기를 컨버터(120)의 입력전압에 부합하도록 변환하는 컨버터 변압기(110);
상기 컨버터 변압기(110)와의 접속을 스위칭하는 스위칭밸브(121)와, 점호각 사용에 따른 고조파 및 무효전력 보상을 위한 필터 및 캐패시터 뱅크(122) 및, 직류 전류를 평활하기 위한 평활 리액터 및 DC 필터(123)로 구성되는 컨버터(120);
상기 컨버터(120)에 의해 변환된 직류 전압을 단상 AC로 변환하는 인버터(130);
상기 인버터(130)에 의해 변환된 단상 AC를 철도차량 운행을 위한 전력인 25kV 60Hz로 변환하는 인버터 변압기(140);
철도차량으로 공급되는 전력이 기 설정된 범위를 유지하도록 전원공급장치(160)로의 전원원공급량을 제어하는 차단장치(150); 및
전차선을 통해 철도차량으로 25kV 60Hz의 전원을 공급하는 전원공급장치(160);를 포함하는 것을 특징으로 하는 사구간이 없는 교류철도시스템용 대용량 능동형 철도급전시스템.The method of claim 1,
The railway power supply device 100,
A converter transformer 110 for converting the AC three-phase electricity to match the input voltage of the converter 120;
Switching valve 121 for switching the connection with the converter transformer 110, filter and capacitor bank 122 for the compensation of harmonics and reactive power according to the use of the firing angle, and a smooth reactor and DC filter for smoothing the DC current A converter 120 composed of 123;
An inverter 130 for converting the DC voltage converted by the converter 120 into single-phase AC;
An inverter transformer 140 for converting single-phase AC converted by the inverter 130 to 25 kV 60 Hz, which is electric power for railroad vehicle operation;
Blocking device 150 for controlling the amount of power supply to the power supply device 160 to maintain the power supplied to the railway vehicle in a predetermined range; And
Large-capacity active railway power supply system for an AC railway system without a four-section, including; power supply unit 160 for supplying power of 25kV 60Hz to the railway vehicle through the tram line. 제 1 항에 있어서,
상기 철도급전장치(100)는,
변전소간 쌍방향 통신을 통해 전력의 위상을 동기화 시키는 위상제어장치(170);를 더 포함하는 것을 특징으로 하는 사구간이 없는 교류철도시스템용 대용량 능동형 철도급전시스템.The method of claim 1,
The railway power supply device 100,
Large-capacity active railway power supply system for an AC railway system without a four-section, further comprising a; phase control device 170 for synchronizing the phase of the power through two-way communication between substations. 사구간이 없는 교류철도시스템용 대용량 능동형 철도급전방법에 있어서,
(a) 컨버터 변압기(110)가 교류 3상의 전기를 컨버터(120)의 입력전압에 부합하도록 변환하는 단계;
(b) 컨버터(120)가 교류 3상의 전기를 직류(DC)로 변환하는 단계;
(c) 인버터(130)가 컨버터(120)에 의해 변환된 직류 전압을 단상 AC로 변환하는 단계;
(d) 인버터 변압기(140)가 인버터(130)에 의해 변환된 단상 AC를 철도차량 운행을 위한 전력인 25kV 60Hz로 변환하는 단계;
(e) 전원공급장치(160)가 전차선을 통해 철도차량으로 25kV 60Hz의 전원을 공급하는 단계; 및
(f) 위상제어장치(170)가 변전소간 쌍방향 통신을 통해 전력의 위상을 동기화하는 단계;를 포함하는 것을 특징으로 하는 사구간이 없는 교류철도시스템용 대용량 능동형 철도급전방법.In the large-capacity active railroad feeding method for the interchange railway system without the four sections,
(a) the converter transformer 110 converts the AC three-phase electricity to match the input voltage of the converter 120;
(b) the converter 120 converting electricity of three phases of alternating current into direct current (DC);
(c) the inverter 130 converting the DC voltage converted by the converter 120 into single-phase AC;
(d) the inverter transformer 140 converting the single-phase AC converted by the inverter 130 to 25 kV 60 Hz, which is electric power for railroad vehicle operation;
(e) the power supply device 160 supplying power of 25 kV 60 Hz to the railroad vehicle through a catenary; And
and (f) synchronizing the phase of the power through bidirectional communication between the substations by the phase control device 170. A large capacity active railroad power supply method for an AC railway system without four sections.
KR1020120048118A 2012-05-07 2012-05-07 Active railway feeding system and method without insulation section for large power ac traction supply KR101369337B1 (en)

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CN104660237B (en) * 2015-03-13 2017-07-04 刘友仁 A kind of one-out-three load switch module
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CZ307731B6 (en) * 2017-05-22 2019-04-03 ELEKTROTECHNIKA, a.s. Circuit board arrangement of a power station of a traction line
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