Abstract:
본 발명은 밀폐된 진공 상태의 튜브를 철도 선로로 이용하여, 소음과 공기 저항을 최소화시켜 열차를 초고속으로 달릴 수 있도록 하는 튜브 철도 시스템(Tube Railway System)에 관한 것으로, 더욱 상세하게는 진공 상태(대기압의 1/3 ~ 1/1000)를 유지하는 것이 필요한 튜브 철도 시스템에서 작동 신호에 의해 튜브 통로를 빠른 속도로 차단하기 위한 차단막 장치를 튜브 선로 일정 구간마다 또는 특정 구간에 설치하여, 진공 유지에 문제가 발생하거나 또는 고의로 진공을 해제하고자 할 때 또는 열차를 비상 정지하고자 할 때 진공 차단막 장치를 동작시켜 해당 구간을 다른 구간과 격리시키고 그 구간만의 진공도를 다르게 관리할 수 있도록 하는 튜브 철도 시스템의 진공 관리 시스템과, 그 시스템에서 이용되는 진공 차단막 장치에 관한 것이다. 튜브 선로, 튜브 열차, 자기부상열차, MAGLEV, 바퀴식 열차, 진공, 차단막, 진공도, 진공 관리, 진공 해제, 대기압, 튜브 철도
Abstract:
PURPOSE: A fault point expression system which uses a fault ratio of a current flowing in a car-line of both fault section ends in an alternating current feed system and a method thereof are provided to arrange linearity between a fault current ratio and fault distance regardless of various fault conditions, thereby precisely determining the fault distance. CONSTITUTION: A fault current measurement module(100) measures a current of a car-line on a real time basis. The fault current measurement module measures a fault current of the car-line and generates fault current information when a short-circuit accident of the car-line is generated on a rail. The fault current of the car-line flows in both ends of two loops arranged in a transformer of both sides adjacent to an accident point. A current ratio measurement module(200) receives the fault current information from the fault current measurement module. The current ratio measurement module generates fault current ratio information by calculating a current ratio with respect to the fault current of the car-line. A fault point expression module(300) receives the fault current ration information from the current ratio measurement module.
Abstract:
본 발명은 직류전기철도의 실시간 누설전류 예측을 위한 귀환전류비 측정 시스템에 관한 것으로서, 정극(正極)의 피더와 접속된 직류 CT(변류기)를 통해 정극의 피더에 흐르는 전류를 측정하는 피더전류 측정모듈(100)과; 레일 및 부극을 연결하는 케이블과 접속되어 케이블에 흐르는 귀환전류를 측정하고, 접지망으로부터 귀환되는 귀환전류와 레일전위를 측정하며, 누설전류 포집망으로부터 귀환되는 귀환전류를 측정하는 귀환전류 측정모듈(200)과; 변전소에서 인입되어 레일로 흐르는 각각의 선로에 대한 전류 및 전압을 측정하되, 변전소에 인입되는 좌우, 상하행선 4개 부분에 구비된 전류센서를 통해 각 레일에 흐르는 4개의 레일 전류 크기를 측정하는 레일전류 측정모듈(300); 및 피더전류 측정모듈(100)에 의해 측정된 정극의 피더에 흐르는 전류량과, 귀환전류 측정모듈(200)에 의해 측정된 레일의 전류량, 접지망 전류량 및 포집망의 전류량, 및 레일전류 측정모듈(300)에 의해 측정된 레일로 흐르는 각각의 선로에 대한 전류 및 전압량을 저장ㆍ관리함과 아울러 각각의 데이터를 분석하여 모니터링하는 원격데이터 처리모듈(400); 을 포함한다.
Abstract:
A railroad car system using a linear motor and a non-contact power supply system is provided to improve efficiency of the non-contact power supply system by maintaining an air gap at a predetermined size in response to a change of a road surface and high frequency vibration of a moving load. A railroad car system includes a linear motor and a non-contact power supply system. The linear motor has a reaction plate which is parallel arranged along a moving direction of a load and a field(40) which is supported on a bottom surface of the load to form a predetermined air gap at an opposite side to the reaction plate and generates a moving field. The non-contact power supply system has a power transmitting unit which is parallel arranged along the moving direction of the load, a power collecting unit which is supported on the bottom surface of the load to form an air gap to be spaced apart from the power transmitting unit and supplies current induced from the power transmitting unit to the load, and an air gap control unit which controls positions of a stator and the power collecting unit to maintain the air gap at a predetermined size.
Abstract:
A railway vehicle system having a linear motor and a non-contact electric power supply is provided to enhance power supply efficiency by maximizing a thrust power of the linear motor. A reaction plate(30) is arranged to be parallel to a direction of a load. A linear motor is supported on a bottom of the load. A predetermined air gap is formed between a field system and the reaction plate. The linear motor includes a field system(40) for generating a varying magnetic field. A feeding portion is arranged to be parallel to the direction of the load. A non-contact electric power supply is supported on the bottom of the load, and includes a condenser, which supplies an induction current from the feeding portion to the load. An air gap controller(50) controls positions of a stator and the condenser, so that the air gap has a predetermined size.
Abstract:
A battery having an electric power breaking function in emergency is provided to improve stability by breaking the electric power output inside the battery when sensing dangerous situations. A battery having an electric power breaking function in emergency includes an emergency signal sensing unit(110), a battery power breaking control unit(120), a power breaking switch unit(130), an electric cell unit(140), and an external box(150). The emergency signal sensing unit(110) outputs an emergency signal by inputting an electric leakage sensing signal inputted from an external sensor. The battery power breaking control unit(120) outputs a power switching signal to supply and break electric power when receiving the emergency signal from the emergency signal sensing unit(110). The power breaking switch unit(130) is switched to be opened or shorted according to the power switching signal from the battery power breaking control unit(120). The electric cell unit(140) has an electrode plate terminal connected to the power breaking switch unit(130) for breaking or supplying the output of the electric power. The external box(150) hermetically seals the power breaking switch unit(130) and the electric cell unit(140) and the emergency signal sensing unit(110) and the battery power breaking control unit(120) are installed on the external box(150) as one body.