• Title, Summary, Keyword: Smart Grid

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A Case Study of the Impact of a Cybersecurity Breach on a Smart Grid Based on an AMI Attack Scenario (AMI 공격 시나리오에 기반한 스마트그리드 보안피해비용 산정 사례)

  • Jun, Hyo-Jung;Kim, Tae-Sung
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.26 no.3
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    • pp.809-820
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    • 2016
  • The smart grid, a new open platform, is a core application for facilitating a creative economy in the era of the Internet of Things (IoT). Advanced Metering Infrastructure (AMI) is one of the components of the smart grid and a two-way communications infrastructure between the main utility operator and customer. The smart meter records consumption of electrical energy and communicates that information back to the utility for monitoring and billing. This paper investigates the impact of a cybersecurity attack on the smart meter. We analyze the cost to the smart grid in the case of a smart meter attack by authorized users based on a high risk scenario from NESCOR. Our findings could be used by policy makers and utility operators to create investment decision-making models for smart grid security.

A Study on the Agent (Protective Device)-based Fault Determination and Separation Methodology for Smart Grid Distribution System

  • Ko, Yun-Seok
    • Journal of Electrical Engineering and Technology
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    • v.10 no.1
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    • pp.102-108
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    • 2015
  • This paper proposes a new fault isolation methodology for a smart protective device which plays an agent role on the smart grid distribution system with the distributed generation. It, by itself, determines accurately whether its protection zone is fault or not, identifies the fault zone and separates the fault zone through the exchange of fault information such as the current information and the voltage information with other protective devices using bi-directional communication capabilities on the smart grid distribution system. The heuristic rules are obtained from the structure and electrical characteristics determined according to the location of the fault and DG (Distributed Generation) when faults such as single-phase ground fault, phase-to-phase short fault and three-phase short fault occur on the smart grid distribution system with DG.

The Economic Impact of the Smart Grid Industry by using Input-Output Analysis (산업연관분석을 활용한 스마트그리드산업의 경제적 파급효과)

  • Kim, You-Jin;Cho, Byung-Sun;Sim, Jin-Bo
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.35 no.8B
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    • pp.1241-1250
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    • 2010
  • With the expanding concept of Smart Grid, it is widely used by mixing with various industries, and therefore the potential and value of Smart Grid should be verified and evaluated. To this end, this study is conducted to look at industrial fields that can be expanded by mixing with Smart Grid, and based on it, draw an economic ripple effect of the Smart Grid industry. To grasp the spread direction of the Smart Grid industry, Our study focused on Smart Grid participants and new businesses that can be derived. Through this, energy, construction, home appliances, and automobile industries are selected as convergence businesses. Our study estimated an economic effect by drawing generation rates from input-output tables that applies the selected industry fields and Korean projections. According to the result, effect on total production inducement will be about 77 trillion won, effect on total value added inducement will be about 24 trillion won, and effect on total employment inducement will be about 31 trillion won. Through this, various functions of Smart Grid and the ripple effects on national economy could be expected.

Digital Evidence Acquisition Scheme using the Trusted Third Party in Smart Grid Infrastructure (스마트그리드 환경에서 공증기관을 이용한 디지털 증거 수집 기법)

  • Cho, Youngjun;Choi, Jaeduck;Kim, Sinkyu;Seo, Jungtaek
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.23 no.2
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    • pp.319-328
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    • 2013
  • Considerable number of major countries have put great efforts to leverage the efficiency of power consumption using Smart Grid in order to resolve the critical issues with drastical growing demands regarding electricity, the crisis of environmental pollution and so on. There has been increasing number of researches to construct Smart Grid in Korea as well. The threats of cyber terror attacks which might cause national crisises in terms of economy and society have been climbing up because of the fact that Smart Grid employs bi-directional communications embedding the cyber threats from existing/legacy communication networks. Consequently, it is required to build concrete response processes including investigation and analysis on cyber breaches into Smart Grid. However, the digital evidence acquisition techniques do not suffice to be deployed in Smart Grid systems despite of the fact that the techniques, against cyber breaches into well-known networks, have been studied in plenty of time. This work proposes a novel digital evidence acquisition scheme appropriate to Smart Grid systems through intensive investigation of the evidence acquisition requirements in Smart Grid and the historical evidence acquisition methods.

IEEE 802.11s based Wireless Mesh Networks for Smart Grid (스마트 그리드를 위한 IEEE 802.11s 기반 무선 메쉬 네트워크)

  • Jung, Ji-Sun;Kim, Jae-Beom;Ko, Young-Bae;Lee, Sang-Youm
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.35 no.9B
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    • pp.1390-1398
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    • 2010
  • We present the concept of applying Wireless Mesh Networking (WMN) technology into Smart Grid, which is recently rising as a potential technology in various areas thanks to its advantages such as low installation costs, high scalability, and high flexibility. Smart Grid is an intelligent, next-generation electrical power network that can maximize energy efficiency by monitoring utility information in real-time and controlling the flow of electricity with IT communications technology converged to the existing power grid. WMNs must be designed for Smart Grid communication systems considering not only the high level of reliability, QoS support and mass-data treatment but also the properties of the traditional power grid. In addition, it is essential to design techniques based on international standards to support interoperability and scalability. In this paper, we evaluate the performance of IEEE 802.11s based Smart Grid Mesh Networks by conducting preliminary simulation studies with the ns-3 simulator. We also outline some challenging issues that should be reviewed when considering WMNs as the candidate for Smart Grid communication infrastructure.

Grid service using Vehicle-to-Grid (V2G를 이용한 전력계통 서비스)

  • Lee, Hyun-Goo;Sohn, Hong-Kwan;Ha, Tae-Hyun;Bae, Jeong-Hyo;Kim, Dae-Kyeong;Lee, Sung-Joon;Kim, Sung-Cheol
    • Proceedings of the KIEE Conference
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    • pp.141-142
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    • 2011
  • The increase in oil prices and the rising environmental concerns are boost the electric vehicle supply. Vehicle manufactures understand this trend quite well and plan to increase the production of electric vehicle(EV) such as Nissan LEAF and GM VOLT etc.. The growth of intermittent renewable energy sources such as solar and wind power requires utilities to find additional grid coupled energy storage and regulation capacity. EVs have a battery pack and a charger. The charger can be able to deliver power back to the grid from the vehicle's battery as well as charge the battery. The concept of deploying EVs to stabilize the electric power grid is generally referred to as Vehicle-to-Grid(V2G). We present the grid service using V2G.

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A Study of IT Centered Smart Grid's STEAM Curriculum and Class for 3rd and 4th Graders in Elementary School (초등학교 3-4학년을 위한 SMART GRID기반 IT주제 STEAM 교육과정 및 수업 방안)

  • Ko, Yeonghae;Park, Namje
    • Journal of The Korean Association of Information Education
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    • v.17 no.2
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    • pp.167-175
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    • 2013
  • This paper examined various study case about smart grid and STEAM education. We develop this STEAM education of IT subject using smart grid for 3rd and 4th graders in elementary school. We make this program and teaching materials by considering about student's intellectual level and interests. We offered this program to 10 elementary 4th graders in Jeju island step by step for 6 period to evaluate the effectiveness of the developed program and teaching materials. Future work will include the follow-up and extended study. It will be expected that students will be able to develop their abilities by this STEAM education using IT.

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Smart Grid Cooperative Communication with Smart Relay

  • Ahmed, Mohammad Helal Uddin;Alam, Md. Golam Rabiul;Kamal, Rossi;Hong, Choong Seon;Lee, Sungwon
    • Journal of Communications and Networks
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    • v.14 no.6
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    • pp.640-652
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    • 2012
  • Many studies have investigated the smart grid architecture and communication models in the past few years. However, the communication model and architecture for a smart grid still remain unclear. Today's electric power distribution is very complex and maladapted because of the lack of efficient and cost-effective energy generation, distribution, and consumption management systems. A wireless smart grid communication system can play an important role in achieving these goals. In this paper, we describe a smart grid communication architecture in which we merge customers and distributors into a single domain. In the proposed architecture, all the home area networks, neighborhood area networks, and local electrical equipment form a local wireless mesh network (LWMN). Each device or meter can act as a source, router, or relay. The data generated in any node (device/meter) reaches the data collector via other nodes. The data collector transmits this data via the access point of a wide area network (WAN). Finally, data is transferred to the service provider or to the control center of the smart grid. We propose a wireless cooperative communication model for the LWMN.We deploy a limited number of smart relays to improve the performance of the network. A novel relay selection mechanism is also proposed to reduce the relay selection overhead. Simulation results show that our cooperative smart grid (coopSG) communication model improves the end-to-end packet delivery latency, throughput, and energy efficiency over both the Wang et al. and Niyato et al. models.

Remote user Access control Mechanism in Smart Grid environments (스마트 그리드 환경을 위한 원격 사용자 접근제어 메커니즘)

  • Oh, Soo-Hyun;Eun, Sun-Ki
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.60 no.2
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    • pp.416-422
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    • 2011
  • Smart grid is the next generation intelligent power grid that combines the existing electric power infrastructure and information infrastructure. It can optimize the energy efficiency in both directions, suppliers and power consumers to exchange information in real time. In smart grid environments, with existing network security threats due to the smart grid characteristics, there are additional security threats. In this paper, we propose a security mechanism that provides mutual authentication and key agreement between a remote user and the device. The proposed mechanism has some advantages that provides secure mutual authentication and key agreement and secure against a replay attack and impersonation attacks.