• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2010년도 추계학술대회 초록집
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• pp.144-144
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• 2010

Reasonable usage methods of energy resources, which are limited for human beings to use, consists of new & renewable energy (NRE) and demand side management (DSM). All technologies and policies for energy resources are classified into two fields, methods for using new energy resources and methods for using conventional fuel energy resources. Various development activities for these fileds have been implemented and various subsidy programs have been operated to penetrate into markets rapidly. These subsidy programs have various types of subsidy by energy resources and programs and the budget are funded by government, which is called Electric Power Industry Basis Fund and is managed considering technology level, economic analysis, global environment, etc. These subsidy programs are managed by Korea Energy Management Corporation (KEMCO) for NRE and by Korea Electric Power Corporation (KEPCO) for DSM, the management are different among two corporations because the purposes and features of establishment are different though these are all public organization. KEMCO is managing the NRE subsidy programs according to the government will, while the management of KEPCO subjects to power system operations though the government will for DSM is considered. NRE which is on the initial phase of diffusion would not affect on power system seriously but the affects could be grown when the diffusion and importance are expanded. Hence some integrated affection analyses considering NRE and DSM are required and this paper shows the concept of integrated operation strategies with ground source heat pump systems which are related with two fields simultaneously.

• ETRI Journal
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• 제35권4호
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• pp.677-686
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• 2013

In this paper, we first introduce a general architecture of an energy management system in a home area network based on a smart grid. Then, we propose an efficient scheduling method for home power usage. The home gateway (HG) receives the demand response (DR) information indicating the real-time electricity price, which is transferred to an energy management controller (EMC). Referring to the DR, the EMC achieves an optimal power scheduling scheme, which is delivered to each electric appliance by the HG. Accordingly, all appliances in the home operate automatically in the most cost-effective way possible. In our research, to avoid the high peak-to-average ratio (PAR) of power, we combine the real-time pricing model with the inclining block rate model. By adopting this combined pricing model, our proposed power scheduling method effectively reduces both the electricity cost and the PAR, ultimately strengthening the stability of the entire electricity system.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2011년도 제42회 하계학술대회
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• pp.679-680
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• 2011

This paper is developed to Energy Balance Flow show the flow of total energy resource be used nationally. The Energy Balance Flow is applicable of demand management factor through the analysis of foreign energy model of supply and demand and energy statistic data in the country. This study is based on and developed to Energy system management model is able to appraisal efficient of energy cost cutting, CO2 emission reduction and Energy saving at the national level calculated effect reached amount of primary energy to change of energy flow followed application of demand side management factor is able to appraisal quantitatively at the total energy to model of demand and supply.

• ETRI Journal
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• 제38권4호
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• pp.735-745
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• 2016

The Paris agreement at the 21st Conference of the Parties (COP21) emphasizes the reduction of greenhouse gas emissions and increase in energy consumption in all areas. Thus, an important aspect is energy saving in buildings where the lighting is a major component of the electrical energy consumption. This paper proposes a building energy management system employing visible light communication (VLC) based on LED lighting. The proposed management system has key characteristics including personalization and localization by utilizing such VLC advantages as secure communication through light and location-information transmission. Considering the efficient implementation of an energy-consumption adjustment using LED luminaires, this paper adopts variable pulse position modulation (VPPM) as a VLC modulation scheme with simple controllability of the dimming level that is capable of providing a full dimming range. This paper analyzes the VPPM performances according to variable dimming for several schemes, and proposes a VPPM demodulation architecture based on dimming-factor acquisition, which can obtain an improved performance compared to a 2PPM-based scheme. In addition, the effect of a dimming-factor acquisition error is analyzed, and a frame format for minimizing this error effect is proposed.

• IEIE Transactions on Smart Processing and Computing
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• 제4권5호
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• pp.354-365
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• 2015

This work presents an Internet of Things (IoT) system for home energy management based on a custom-designed Impulse Radio Ultra-Wideband (IR-UWB) transceiver that targets a generic and multi-standard control system. This control system enables the interoperability of heterogeneous devices: it integrates various sensor nodes based on ZigBee, EnOcean and UWB in the same middleware by utilizing an ad-hoc layer as an interface between the hardware and software. The paper presents as a first the design of the IR-UWB transceiver for a portable sensor node integrated with the middleware layer, and also describes the receiver connected to the control system. The custom-designed low-power transmitter on the sensor node is fabricated with 130 nm CMOS technology. It generates a signal with a 1.1 ns pulse width while consuming $39{\mu}W$ at 1 Mbps. The UWB sensor node with a temperature measurement capability consumes 5.31 mW, which is lower than the power level of state-of-the-art solutions for smart-home applications. The UWB hardware and software layers necessary to interface with the control system are verified in over-the-air measurements in an actual office environment. With the implementation of the presented sensor node and its integration in the energy management system, we demonstrate achievement of the broad flexibility demanded for IoT.

• 한국지능시스템학회논문지
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• 제21권1호
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• pp.29-35
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• 2011

본 논문에서는 신재생에너지원을 포함하는 독립형 마이크로그리드시스템의 멀티에이전트시스템 기반의 분산에너지관리시스템 설계를 위한 통합시뮬레이션 모델을 제안한다. 멀티에이전트기반 분산에너지관리시스템은 일반적인 중앙에너지관리시스템에 비해 여러 장점들을 가지고 있으나 각 상태에 따른 설계가 비교적 복잡하여 기존의 전력시스템 도구를 이용하여 분산 에너지관리시스템을 설계하기에는 많은 어려운 점들이 있었다. 또한 설계된 에너지관리시스템을 실제 시스템에 적용하여 평가하는 것은 비능률적이기 때문에 효과적인 에너지관시스템을 설계하기 위해서는 통합시뮬레이션 모델이 필요하다. 제안된 통합시뮬레이션 모델은 Matlab/Simpowersystem 기반의 마이크로그리드시스템의 시뮬레이션 모델과 이벤트기반의 알고리즘 설계에 많은 장점이 있는 Matlab/StateFlow을 이용하여 설계된 멀티에이전트기반의 분산에너지관리시스템으로 구성되었다. 통합시뮬레이션 모델의 효용성을 보이기 위하여 특정한 동작 조건들에서 제안된 모델의 출력들을 분석하였다.

• 신재생에너지
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• 제2권4호
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• pp.27-32
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• 2006

New and renewable energy information becomes one of the greatest issues because of serious environment problems and limited fossil resources. However, There are few system to manage and utilize new and renewable energy information efficiently. Therefore this study establish the GIS based Resource Map System to save and analyze new and renewable energy information about solar energy, wind power, small hydro, biomass, and geothermal. This Resource Map System is composed of the management system, practical system, field system, and Web-service system. This System can provide various spatial analysis tools such as data searching, creating thematic maps, evaluating location requirements for energy facilities.

• 한국전자통신학회논문지
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• 제14권2호
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• pp.351-360
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• 2019

최근 정부의 에너지 정책에 힘입어 ESS(: Energy Storage System) 설비가 증가하고 있으며 이로 인해 화재 폭발 등 다양한 사건사고가 발생하고 있다. 현재 ESS는 PMS(: Power Management System) 포함하여 모든 시스템이 현장에 설치되어있는 통합형 ESS로 구축되어 있다. 이 시스템은 사고 발생 시 산화되어 데이터의 부재 가능성이 매우 높을 뿐만 아니라 외부에 존재하는 관리자가 사고 발생 시 신속하게 대응할 방법이 없는 상황이다. 이에 본 논문에서는 별도의 WAS 및 데이터 스토리지 구축을 통해 기존 시스템에서의 주요 기능을 분리하여 외부에서 EMS(: Energy Management system) 운용이 가능함과 동시에 사고 발생 시 원인 및 신속한 대응이 가능한 독립형 PMS 개발을 제안하고자 한다.

• 한국방사성폐기물학회:학술대회논문집
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• 한국방사성폐기물학회 2019년도 춘계학술논문요약집
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• pp.295-296
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• 2019

• 한국위성정보통신학회논문지
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• 제8권2호
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• pp.17-21
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• 2013

빌딩 등 건물에너지 절약에 대한 관심이 전 세게적으로 날로 증가하고 있으며, BEMS(Building Energy Management System)을 효율적으로 운용하기 위한 IT 기술에 대한 연구를 지속적으로 진행하고 있다. 최근 LED 조명기술의 발전으로 LED를 제어하여 에너지 절감효과를 극대화 할 수 있으며 BEMS에 이러한 LED 조명 제어기술들이 개발되고 있다. 본 논문에서는 건물에 설치되어 있는 LED조명과 연동되어 있는 객체감지 센서를 ZigBee 통신을 활용하여 서버와 연결이 되며, 사용자가 서버와 연결된 PC를 통해 모니터링 및 제어가 가능한 시스템을 제안하였다. 설계한 구조를 기반으로 빌딩에서 객체를 감지하여 LED 조명을 실시간으로 모니터링 및 제어 가능한 기능을 제안하고, 관련 Software 개발을 통해 구현가능성을 입증하였다.