• Journal of the Institute of Electronics and Information Engineers
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• v.52 no.5
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• pp.225-234
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• 2015

Nowadays a Virtual Power Plant (VPP) represents an aggregation of distributed energy resource such as Distributed Generation (DG), Combined Heat and Power generation (CHP), Energy Storage Systems (ESS) and load in order to operate as a single power plant by using Information and Communication Technologies, ICT. The VPP has been developed and verified based on a single virtual plant platform which is connected with a number of various distributed energy resources. As the VPP's distributed energy resources increase, so does the number of data from distributed energy. Moreover, it is obviously inefficient in the aspects of technique and cost that a virtual plant platform operates in a centralized manner over widespread region. In this paper the concept of the large-scale VPP which can reduce a error probability of system's load and increase the robustness of data exchange among distributed energy resources will be proposed. In addition, it can directly control and supervise energy resource by making small size's virtual platform which can make a optimal resource scheduling to consider of variable and sensitive load in the large-scale VPP. It makes certain the result is verified by simulation.

• Journal of IKEEE
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• v.24 no.1
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• pp.311-318
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• 2020

A virtual power plant is a kind of software power plant that enables participation in power operation by integrally managing individual distributed resources. This paper proposes a common information communication architecture based on the TASE.2 standard and the OpenADR2.0 standard to operate a virtual power plant as a single power system. ESS is designed TASE.2 SBO devices that related objects are mapped to OpenADR2.0 services and composed as a single sequence type. Through simulation verification, it conforms data exchange and operation based on both standards.

• Journal of Digital Convergence
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• v.19 no.11
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• pp.365-371
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• 2021

In this study, The Virtual Power Plant (VPP) solution platform considered in this study minimizes the cost and investment risk associated with the construction of power generation and transmission facilities. In addition, it includes a Demand Response (DR) program operation function to meet consumers' electricity demand. With the introduction of VPP, it is possible to provide more eco-friendly and efficient power by responding to changes in consumer load in real time through existing generators and DR programs without large-scale facility investment in power generation and transmission/distribution sectors. In order to link the communication device to the solar power and ESS linkage device, it is necessary to transmit data in the control/state between the device device and the edge system and develop an IoT device and interworking platform (OneM2M).

• The Transactions of The Korean Institute of Electrical Engineers
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• v.64 no.3
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• pp.375-383
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• 2015

The virtual power plant (VPP) is a new technology to achieve flexibility as well as controllability, like traditional centralized power plants, by integrating and operating different types of distributed energy resources (DER) with the information communication technology (ICT). Though small-sized DERs may not be controlled in a centralized manner, these are more likely to be utilized as power plants for centralized dispatch and participate in the energy trade given that these are integrated into a unified generation profile and certain technical properties such as dispatch schedules, ramp rates, voltage control, and reserves are explicitly implemented. Unfortunately, the VPP has been in a conceptual stage thus far and its common definition has not yet been established. Such a lack of obvious guidelines for VPP may lead to a further challenge of coming up with the business model and reinforcing the investment and technical support for VPP. In this context, this paper would aim to identify the definition of VPP as a critical factor in smart grid and, at the same time, discuss the details required for VPP to actively take part in the electricity market under the smart grid paradigm.

• Proceedings of the KIPE Conference
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• 2000.07a
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• pp.452-455
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• 2000

본 논문에서는 현재 수행중인 가상현실 기술을 이용한 컴퓨터 지원 교육훈력 시스템(CATS : Computer Assister Training System) 개념 설계를 바탕으로 발전소 3D 그래픽 모델을 작성하고 가상현실도구를 사용하여 정보의 변경 및 가공처리로 가상발전소(Virtual Plant) 및 가상판넬(Virtual Panel)상세설계 및 구현결과에 대해 서술한다. 이를 통해 발전소 주요계통 설비 및 발전소 본관 내부의 주요기기 등을 Navigation 할수 있고 이에 대한 엔지니어링 데이터베이스 환경을 작성하여 추후 정확하고 신속한 계통 설비 및 주요기기 정보를 얻을수 있도록 하였으며 가상판넬(Virtual Pannel)을 만들어 학생들이 시뮬레이터실로 가지 않고 MCR(Main Control Room)에서 발전소를 운전하는 것과 같은 효과를 강의실에서 얻을 수 있다.

• Journal of Electrical Engineering and Technology
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• v.13 no.2
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• pp.568-579
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• 2018

Virtual power plants can be regarded as systems that have entered the network after restructure of power systems. In fact, these plants are a set of consumers capable of consuming and generating power. In response to widespread implementation of plug-in hybrid electric vehicles, further investigation of energy management in this type of power plants seems to be of great value. In effect, these vehicles are able to receive and inject power from/into the network. Hence, study of the effects of these vehicles on management of virtual power plants seems to be illuminative. In this paper, management of power consumption/generation in virtual power plants has been investigated in the presence of hybrid electric vehicles. The objective function of virtual power plants problem management is to minimize the overall costs including not only the costs of energy production in power generation units, fuels, and degradation of batteries of vehicles, but also the costs of purchasing electricity from the network. Furthermore, the constraints on the operational of plants, loads and hybrid vehicles, level of penalty for greenhouse gas emissions ($CO_2$ and $NO_x$) produced by power plants and vehicles, and demand response to the immediate price of market have all been attended to in the present study. GAMS/Cplex software system and sample power system have been employed to pursue computer implementation and simulation.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2018.05a
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• pp.37-38
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• 2018

BIM(Building Information Modeling) in the architecture, VDC(Virtual Design and Construction) defined CIFE(Center for Integrated Facility Engineering) of Stanford university in USA, and Data-driven design definition issued by TECDOC-1284 of IAEA are doing data-level design generated by 3D CAD technology, integrating and managing related information based on the 3D model, and Using 3D models effectively during nuclear power plant life cycle. 3D model of domestic nuclear power industry is using interference review between design fields, 4D system linked 3D construction model and schedule activity, but the 3D model generated in the design phase is effectively not utilized during the construction, operation, decommissioning. therefore, This study is aimed to suggest 3D model LOD(Level of Detail) advancement method through the analysis of existing literature, 2D drawings, and 3D models throughout nuclear power plant lifecycle.

• Proceedings of the KIEE Conference
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• 2001.10a
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• pp.227-229
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• 2001

In recent years, studies on virtual reality and web 3D have been progressed and got a eye-opening progress in the field. In this paper, to improve a process of In-Service Inspection work for a nuclear power plant, we developed a virtual ISI DB management system by using virtual reality technology. This management system provides a high degree of efficiency for In-Service Inspection process and makes inspectors comfortable in web environment. This paper will be hope to activate a introduction of VR technology to the domestic industry.

• Proceedings of the Korea Information Processing Society Conference
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• 2002.11a
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• pp.259-262
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• 2002

원자력 발전소는 발전소 안전과 방사선 안전등의 이유로 해서 복잡한 건물 및 기기들로 이루어져 있다. 특히 고 방사성 물질들을 함유하고 있는 1 차계통(NSSS System) 기기들은 평상 운전시 뿐 아니라 정기보수(O/H) 기간 중에도 고 방사능 지역에 위치하여 운전원의 접근이 어려운 지역이다. 본 고에서는 이러한 접근 제약성을 극복할 수 있는 교육시스템으로서 전력연구원에서 개발한 울진 표준형원전 가상현실 교육훈련 지원시스템(KSNP VRCATS)의 일환으로 가상 공간에 구현된 가상발전소(Virtual Plant)와 각종 기기 구조물, 가상 주제어실(Virtual MCR)의 개발 내용 및 특징을 기술하였다.

• KEPCO Journal on Electric Power and Energy
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• v.3 no.2
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• pp.133-140
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• 2017

The performance prediction software developed in this paper is a process analysis tool that enables one to foretell the behavior of processes when certain conditions of operation are altered. The immediate objective of this research is to predict the process characteristics of combined heat and power plant under varying operating conditions. A cogeneration virtual power plant that mimics the mechanical performance of the actual plant was constructed and the performance of the power plant was predicted in the following varying atmospheric conditions: temperature, pressure and humidity. This resulted in a positive outcome where the performance of the power plant under changing conditions were correctly predicted as well as the calorific value of low calorific gas fuel such as shale gas and PNG. The performance prediction tool can detect the operation characteristics of the power plant through the performance index analysis and thus propose the operation method taking into consideration the changes in environmental conditions.