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스마트 분전반 제작을 위한 작업 공정도 개발에 관한 연구
이병설 ( Byung-seol Lee ),최충석 ( Chung-seog Choi ) 한국안전학회 2017 한국안전학회지 Vol.32 No.3
This study presented the strength of the materials and parts for smart distribution board fabrication, and developed a work operation process chart for smart distribution board fabrication. This work operation process chart for smart distribution board fabrication complied with SPS-KEMC regulations, and the applicable range and object are less than 1,000 V and 1,000 Hz for the AC distribution board and less than 1,500 V for the DC distribution board. The power supply is 3 phase 4 wires (3Φ 4W), divided into a single phase circuit and a 3 phase circuit. In addition, the circuit was configured so that the leakage current flowing through the distribution line of the load could be monitored in real time by using the sensor module installed at the rear end of the circuit breaker. Therefore, the administrator can easily find the risk factor of the load since engineer can check the leakage current of each distribution line. In addition, if a leakage current greater than standard value flows, it is possible to generate an alarm against a short circuit and cut off the leakage current. The work operation process chart for the smart distribution board fabrication consists of the following steps: raw and subsidiary materials, sheet metal work, tube making, welding, painting, busbar fabrication, assembly and wiring, product inspection, shipment, etc. Moreover, symbols, △, ▽, O, ⇒, etc. were used according to the type of work and work progress so that workers can easily understand the progress of the work.
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문현욱(Hyun-Wook Moon),임용배(Young-Bea Lim),김동우(Dong-Woo Kim),이상익(Sang-Ick Lee),최명일(Myeong-Il Choi) 대한전기학회 2016 전기학회논문지 Vol.65 No.1
Electrical disasters have not been greatly reduced despite continuous prevention efforts until now. However, the smart distribution board which can be measured information about general electrical condition such as current, voltage, power, power factor etc. and electrical safety condition such as over-current, leakage current, arc etc. and communicated analysis information about electrical condition with server will be helpful for the prevention of electrical disasters through real-time surveillance and data analysis under smart grids based on the two-way communication. In this paper, the proposal standard of smart distribution board for electrical safety is suggested about the structure, functional requirements of compositions, communication, security and so on.
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A Study on ESS-based hybrid power generation system with easy expansion
Hee-Chul Kim 중소기업융합학회 2019 융합정보논문지 Vol.9 No.1
본 연구는 스마트분전반 MG(;Micro-Grid) 구성의 중심축으로 모듈형 하이브리드 발전원과 DC 버스를 통하여 링크를 갖으며 표준소켓을 사용하여 불법연결을 감지 차단하는 기능을 부여하고, 전력 계통의 안정화를 달성함을 목적으로 한다. 전력변환장치, 스마트분전반, 통합제어시스템의 개발과 효율 적인 수요관리가 필요하며, MG 전체시스템과의 호환성이 절실하다. 이는 공통 전력 연결 규약으로 안 전하고 누구나 연결을 쉽게 할 수 있는 하이브리드발전시스템으로 데이터 관리가 용이해지고 다양한 제조사의 시스템 확대설치에 대한 대비가 가능하다. This study is the central axis of the MG (Micro-Grid) configuration and it has the link through the modular hybrid power source and the DC bus, and it provides the function to detect and block the illegal connection by using the standard socket, And to achieve stabilization. Development of power conversion device, smart distribution panel, integrated control system and efficient demand management are required, and compatibility with MG whole system is urgent. This is a hybrid power generation system that is safe with a common power connection protocol and can be easily connected to anyone. This makes it easy to manage data and prepare for expansion of various manufacturers' systems.
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NIALM 기반의 스마트 홈 안전관리시스템에 관한 연구
정한상(Han-Sang Jeong),성경상(Kyung-Sang Sung),오해석(Hae-Seok Oh) 한국산학기술학회 2017 한국산학기술학회논문지 Vol.18 No.8
기존의 전기 에너지 및 관리에 필요한 정보를 취득하기 위해 적용하였던 계측방식은 공간적인 문제와 시스템의 크기로 인해 신규 건축물 또는 교체가 가능한 지역에만 한정되었었다. 이러한 전기 부하관리 방법은 취약지구나 기존 기 구축되어 있는 가정 또는 사무실의 에너지 및 안전관리에 적용하기에 문제가 있다. 즉, 모든 분기마다 계측 모듈을 설치하는 문제로 인해, 그 시스템의 크기가 너무 크고, 계측모듈을 설치하더라도 부하의 종류를 인식하지 못해 효율적 관리가 이루어지지 않으며 많은 비용이 발생하고 있어서 보급에 어려움을 겪고 있다. 특히, 한국의 전통 재래시장 및 낙후된 시설 등에는 적용하기 매우 어려운 실정이다. 본 논문에서는 이러한 문제점을 개선하기 위해 NIALM 기술과 아크 감지기술을 적용하여, 정상적인 아크발생에 대한 NIALM의 적용가능성을 검증하고자 한다. 또한, 검증 결과를 기반으로 재래시장 및 기존 가정내 안전관리장치에 적용할 수 있는 효율적인 전기안전관리가 가능한 새로운 개념의 스마트 홈 안전관리 시스템을 제안한다. 제안된 시스템은 기존에 적용된 안전관리시스템과의 비교 성능 시험을 진행하였고, 기존 시스템 대비 40%의 공간내에서 기존 시스템에서는 불가능하였던 4가지 부하에 대한 부하인식을 95%이상 달성하였고, 또한 기존 시스템과 같은 아크 감지기능을 확인하였다. Due to spatial problems and system size,conventional measurement methods used to acquire the information needed for existing electrical energy and management have been limited to new buildings or areas where replacement is possible. This electric load management method is problematic whenapplying it to energy and safety management of vulnerable areas or existing homes or offices. The problem withinstalling ameasurement module in every branch is that the system is too large.Even if the measurement module is installed, the type of load is not recognized, and efficient management is not performed. In particular, it is very difficult to apply it to traditional markets and backward facilities in Korea. In this paper, we apply NIALM technology and arc detection technology to solve these problems and verify the feasibility of NIALM for normal arc generation. Also, based on the verification results, we propose a new smart home safety management system that can effectively manage electrical safety and that can be applied to conventional market and existing home safety management systems. The proposed system conductsa comparative performance test with anexisting safety management system. In addition, it achieves 95% or more load recognition for four loads, which is impossible in 40% of the existing systems, and the arc detection function was confirmed.
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A Study on ESS-based hybrid power generation system with easy expansion
김희철 중소기업융합학회 2019 융합정보논문지 Vol.9 No.1
This study is the central axis of the MG (Micro-Grid) configuration and it has the link through the modular hybrid power source and the DC bus, and it provides the function to detect and block the illegal connection by using the standard socket, And to achieve stabilization. Development of power conversion device, smart distribution panel, integrated control system and efficient demand management are required, and compatibility with MG whole system is urgent. This is a hybrid power generation system that is safe with a common power connection protocol and can be easily connected to anyone. This makes it easy to manage data and prepare for expansion of various manufacturers' systems.
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