• Journal of Electrical Engineering and Technology
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• 제2권1호
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• pp.42-49
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• 2007

For electricity markets to function in a truly competitive and efficient manner, it is not enough to focus solely on improving the efficiencies of power supply. To recognize price-responsive load as a reliability resource, the customer must be provided with price signals and an instrument to respond to these signals, preferably automatically. This paper attempts to develop the Windows-based load management system in competitive electricity markets, allowing the user to monitor the current energy consumption or billing information, to analyze the historical data, and to implement the consumption strategy for cost savings with nine possible scenarios adopted. Finally, this modeling framework will serve as a template containing the basic concepts that any load management system should address.

• Journal of Electrical Engineering and Technology
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• 제10권1호
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• pp.64-74
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• 2015

Because of the burgeoning demand of the energy, the countries are finding sustainable solutions for these emerging challenges. Demand Side Management is playing a significant role in managing the demand with an aim to support the electrical grid during the peak hours. However, advancement in controls and communication technologies, the aggregators are appearing as a third party entity in implementing demand response program. In this paper, a detailed mathematical framework is discussed in which the aggregator acts as an energy service provider between the utility and the consumers, and facilitate the consumers to actively participate in demand side management by introducing the new concept of demand reduction bidding (DRB) under constrained direct load control. Paper also presented an algorithm for the proposed framework and demonstrated the efficacy of the algorithm by considering few case studies and concluded with simulation results and discussions.

• 한국산학기술학회논문지
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• 제8권3호
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• pp.488-495
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• 2007

일반용 전기설비의 정기적인 전기안전 점검과 부적합 설비의 개선조치에도 불구하고 전기화재의 80% 이상이 일반용 전기설비에서 발생하였으며 전기안전점검제도에 대한 이해부족, 미점검 수용가 증가, 누전차단기 미설치 및 부적합 시설의 방치 등의 원인으로 전기안전사고를 예방하는 것이 더욱 어려워진다. 본 논문에서는 일반용 전기설비의 전기안전점검 제도, 안전점검결과 및 전기화재 통계를 분석하천 관련 문제점을 도출하였다. 또한 전기안전점검제도, 점검업무 수행 방법, 전기화재 통계 수립 및 전기안전의식, 원격전기안전점검 체계 측면에서 일반용 전기설비 안전관리 개선방안을 제시하였다.

• 전기학회논문지
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• 제64권7호
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• pp.992-998
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• 2015

The ESS is composed of Battery Package, PCS(Power Conditioning System) Package, BCU(BESS Control Unit). In Jeju smart grid test-bed, we have developed a business model by ESS power system, renewable energy, transportation, such as customers, and have demonstrated above things. We have analyzed the EMS(Energy Management System) model of KPX where manages supply and demand of domestic electrical power system. We modified and launched EMS for microgrid but the cost was expensive and the system was large size. For releasing this system from industry as a whole, it is imperative to develop PMS(Power Management System) for microgrid. However, the cost of EMS for microgrid is expensive, some systems because it is a large development of the all of the first fruits in urgent PMS(Power Management System) for microgrid to be used in industry in general. Therefore, in this paper, we propose the ESS model considering the power systems characteristics and extensibility in korea. and also we propose the PMS to manage the ESS systems.

• 대한안전경영과학회지
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• 제9권3호
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• pp.1-7
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• 2007

A roadmap for Electrical Safety Technology has been designed based on the study that has been contributed by the specialists, professors and researchers in electral safety field. The roadmap is divided into five major fields including, for instance, the electrical fire accidents roadmap. The other four roadmaps are for electrical shock accidents, electrical facilities accidents, electrical safety policies and electrical safety culture-education, respectively. Each roadmap has a purpose, a scope, and a technical characteristic. Following the roadmaps can result in significant reduction of electrical fire accidents, electrical shock accident victims and so forth. The result can also be utilized in guiding the planning and development of the future electrical safety technology.

• Journal of Electrical Engineering and Technology
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• 제4권3호
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• pp.330-336
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• 2009

This paper proposes an on-line voltage management and control solution for a distribution system which can improve the efficiency and accuracy of existing off-line work by collecting customer voltage on-line as well as the voltage compensation capability of the existing ULTC (Under Load Tap Changer) operation and control strategy by controlling the ULTC tap based on pattern clustering and recognition. The proposed solution consists of an ADVMD (Advanced Digital Voltage Management Device), a VMS (Voltage Management Solution) and an OLDUC (On-Line Digital ULTC Controller). An on-line voltage management emulator based on multi-thread programming and the shared memory method is developed to emulate on-line voltage management and digital ULTC control methodology based on the on-line collection of the customer's voltage. In addition, using this emulator, the effectiveness of the proposed pattern clustering and recognition based ULTC control strategy is proven for the worst voltage environments for three days.

• Journal of Electrical Engineering and Technology
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• 제11권5호
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• pp.1093-1099
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• 2016

• KEPCO Journal on Electric Power and Energy
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• 제5권2호
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• pp.67-74
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• 2019

최근 신재생 분산전원의 투입 확대로 배전계통 내 변동성이 커짐에 따라서 안정적인 배전계통 운영에 대한 우려가 커지고 있는 상황이다. 미래 배전계통의 효율적인 관리를 위해서 새로운 시각화 기술을 이용한 배전계통 운영시스템의 개선이 필요하다. 본 논문에서는 배전분야의 GIS 도입 현황과 관련 기술 동향을 기술하고, 배전계통 운영을 위해 GIS시스템의 필요성과 GIS기술 도입 시 해결해야할 문제점을 분석한다.

• 조명전기설비학회논문지
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• 제22권10호
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• pp.134-140
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• 2008

본 논문에서는 건축물 전기설비의 운용실태를 조사하였으며 기술기준에 준하여 시공된 국내 설비를 IEC60364에 적용할 시 문제점을 검토하였다. 국내 기술기준에 준해 시공된 건축전기설비는 TT계통과 유사하나 건물내 모든 금속도체를 보호도체(PE conductor)에 접합하여 등전위시키는 IEC60364와 차이점이 있다. 따라서 본 논문에서는 국내 건축전기설비 중IEC60364를 적용하여 시공된 설비에 대한 실태조사를 통해 이해 부족 및 기술기준과 IEC60364의 혼용으로 인한 문제점을 도출하고 해결방안을 제시하고자 한다.

• Journal of Information Processing Systems
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• 제16권5호
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• pp.1095-1104
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• 2020

This paper introduces a design scheme of intelligent gas valve management and service system based on Internet. This scheme adds sensor and general packet radio service (GPRS) modules to the traditional gas valve and establishes communication connection between gas valve and the server through wireless packet communication technology, which makes the traditional gas valve have the networking ability. Compared with the traditional gas valve management and service business, the method proposed in this paper is more convenient and efficient.