• Title/Summary/Keyword: Smart Meter

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Anomaly detection of smart metering system for power management with battery storage system/electric vehicle

  • Sangkeum Lee;Sarvar Hussain Nengroo;Hojun Jin;Yoonmee Doh;Chungho Lee;Taewook Heo;Dongsoo Har
    • ETRI Journal
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    • v.45 no.4
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    • pp.650-665
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    • 2023
  • A novel smart metering technique capable of anomaly detection was proposed for real-time home power management system. Smart meter data generated in real-time were obtained from 900 households of single apartments. To detect outliers and missing values in smart meter data, a deep learning model, the autoencoder, consisting of a graph convolutional network and bidirectional long short-term memory network, was applied to the smart metering technique. Power management based on the smart metering technique was executed by multi-objective optimization in the presence of a battery storage system and an electric vehicle. The results of the power management employing the proposed smart metering technique indicate a reduction in electricity cost and amount of power supplied by the grid compared to the results of power management without anomaly detection.

Clustering of Smart Meter Big Data Based on KNIME Analytic Platform (KNIME 분석 플랫폼 기반 스마트 미터 빅 데이터 클러스터링)

  • Kim, Yong-Gil;Moon, Kyung-Il
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.20 no.2
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    • pp.13-20
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    • 2020
  • One of the major issues surrounding big data is the availability of massive time-based or telemetry data. Now, the appearance of low cost capture and storage devices has become possible to get very detailed time data to be used for further analysis. Thus, we can use these time data to get more knowledge about the underlying system or to predict future events with higher accuracy. In particular, it is very important to define custom tailored contract offers for many households and businesses having smart meter records and predict the future electricity usage to protect the electricity companies from power shortage or power surplus. It is required to identify a few groups with common electricity behavior to make it worth the creation of customized contract offers. This study suggests big data transformation as a side effect and clustering technique to understand the electricity usage pattern by using the open data related to smart meter and KNIME which is an open source platform for data analytics, providing a user-friendly graphical workbench for the entire analysis process. While the big data components are not open source, they are also available for a trial if required. After importing, cleaning and transforming the smart meter big data, it is possible to interpret each meter data in terms of electricity usage behavior through a dynamic time warping method.

A Study on Design of Meter Data Management System for Operation of AMI (AMI 운영을 위한 MDMS 설계 연구)

  • Jung, Nam-Joon;Kim, Dong-Wook;Song, Jae-Ju;Chae, Chang-Hun
    • Proceedings of the Korea Information Processing Society Conference
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    • 2012.04a
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    • pp.208-211
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    • 2012
  • 전력시스템에서 MDMS(Meter Data Management System)는 HAN(Home Area Network)과 Smart Meter, SUN(Smart energy Utility Network)와 같은 AMI(Advanced Metering Infrastructure) 기반 환경에서 수많은 전력 또는 수도 가스 사용량과 같은 데이터를 수집, 취득하고, 이들 데이터를 처리, 가공, 분석하여 가치 있는 정보로 변환시켜, 요금서비스 및 다양한 부가서비스 창출에 활용되는 소프트웨어 인프라이다. 최근 MDMS 개발은 기능의 중요성 뿐만 아니라 다른 응용 시스템들과의 상호 운용성을 고려하여 개발하는 요구 기능을 가진다. 본 논문에서는 스마트그리드 환경에 적합한 AMI의 전력처리시스템(MDMS) 개발을 위한 설계 방안을 기술하였다.

Analysis of Security Requirements on DCU and Development Protection Profile based on Common Criteria Version 3.1 (DCU 보안요구사항 분석 및 CC v3.1 기반의 보호프로파일 개발)

  • Cho, Youngjun;Kim, Sinkyu
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.24 no.5
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    • pp.1001-1011
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    • 2014
  • Smart Grid Devices could have security vulnerabilities that have legacy communication networks because of the fact that Smart Grid employs bi-directional communications and adopted a variety of communication interface. Consequently, it is required to build concrete response processes and to minimize the damage of the cyber attacks including security evaluation and certification methods. DCU is designed to collect meter data from numerous smart meter and send to utility's server so DCU installed between smart meter and utility's server. For this reason, If DCU compromised by attacker then attacker could use DCU to launching point for and attack on other devices. However, DCU's security evaluation and certification techniques do not suffice to be deployed in smart grid infrastructure. This work development DCU protection profile based on CC, it is expected that provide some assistance to DCU manufacturer for development of DCU security target and to DCU operator for help safety management of DCU.

A Study on the Implementation of outdoor type Virtual Private Network Gateway for Smart Grid (Smart Grid를 위한 필드형 가상사설망(VPN) 게이트웨이의 구현)

  • Park, Jun-Young;Kim, Huy-Kang
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.21 no.4
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    • pp.125-136
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    • 2011
  • The vulnerabilities existed in Korean electricity control systems is unexposed because it is being operated in a closed network with superior security. The threat will become greater once the closed network develops into a smart grid environment with superior intelligence. Security will have a greater impact once each household will be connected to the power plant via the smart meter. This research focuses on stable data transfer in harsh external environment and whole-nation coverage network, and suggested standardized and optimized Virtual Private Network (VPN) Gateway architecture to support Power Line Communication (PLC). The functionality and stability of the prototype has been verified with field tests. For implementation of outdoor type VPN device for smart grid, we adopted PLC low voltage remote-meter-net for data communication. Also, IPSec type tunneling and ARIA algorithm based encryption of data collected by PLC low voltage remote meter is transmitted.

A Study on the Requirements Analysis and Design for System Development of Remote Firmware Upgrade Management System Based-on AMI (AMI 기반 원격 펌웨어업그레이드 시스템 개발을 위한 요구분석 및 설계에 관한 연구)

  • Jung, Nam-Joon;Yang, Il-Kwon;Choi, Seong-Hwan;Jin, Young-Taek
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.61 no.1
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    • pp.155-161
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    • 2012
  • The firmware upgrade, which is remotely performed, is an essential function in smart metering or AMI (Advanced Metering Infrastructure). In other words, the AMI software and firmware can be switched for maintaining and improvement without replacement of H/W devices in AMI environment. Also, if number and type of devices are increase, the demand of remote update service will be increased. Through the firmware upgrade service remotely, the electric power corporation may be able to benefit various fields. For example, there are to adapt more easily in many environments, real-time service and to cut maintenance costs. In this paper, we proposed to design an international level FUMS(Firmware Upgrade Management System) which includes requirement function, architecture and protocol related with DCU, Smart Meter.

A Study on Encryption Module for Remote Terminal Security of Smart Water-Grid Network (스마트 워터그리드 네트워크의 원격 단말기 보안을 위한 암호화 모듈에 관한 연구)

  • Park, Seung-Hwan;Park, Hyung-Mo;Kim, Chang-Bok
    • Journal of Advanced Navigation Technology
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    • v.17 no.6
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    • pp.712-719
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    • 2013
  • This paper studies the security module for the reliable transmission of the meter reading and the control data between the remote terminals and the upper server-side in smart water grid. The proposed security module was implemented to make it attachable to the remote terminal without security function. In particular, unlike the smart grid of electric field, the low power is considered due to the use of battery power in the smart water grid, and the ARIA-GCM-128 symmetric key method is adopted taking into the account that the damp and constrictive environments by the installed meter location in the underground occur a communication obstacle on building of the large-scale network system. The encryption module of this paper was devised to ensure the safety between the reading data on the terminal and the control data from the upper server, and secure the stability of the remote meter reading system by taking protection against an arbitrary alteration or modification.

Implementation of Smart Metering System Based on Deep Learning (딥 러닝 기반 스마트 미터기 구현)

  • Sun, Young Ghyu;Kim, Soo Hyun;Lee, Dong Gu;Park, Sang Hoo;Sim, Issac;Hwang, Yu Min;Kim, Jin Young
    • Journal of IKEEE
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    • v.22 no.3
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    • pp.829-835
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    • 2018
  • Recently, studies have been actively conducted to reduce spare power that is unnecessarily generated or wasted in existing power systems and to improve energy use efficiency. In this study, smart meter, which is one of the element technologies of smart grid, is implemented to improve the efficiency of energy use by controlling power of electric devices, and predicting trends of energy usage based on deep learning. We propose and develop an algorithm that controls the power of the electric devices by comparing the predicted power consumption with the real-time power consumption. To verify the performance of the proposed smart meter based on the deep running, we constructed the actual power consumption environment and obtained the power usage data in real time, and predicted the power consumption based on the deep learning model. We confirmed that the unnecessary power consumption can be reduced and the energy use efficiency increases through the proposed deep learning-based smart meter.

An Efficient AMI Simulator Design adapted in Smart Grid (스마트그리드에서의 효율적인 AMI 구현을 위한 통합 시뮬레이터 설계)

  • Yang, Il-Kwon;Choi, Seung-Hwan;Lee, Sang-Ho
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.62 no.10
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    • pp.1368-1375
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    • 2013
  • The Smart Grid, which can monitor or diagnose the power grid in real time to operate efficiently, has been pushed ahead systematically as one of alternatives to solve these issues by combining the advanced Information Communication Technology and the electrical network. Hence, the electric company which introduces smart grid technology can read remotely the electrical meter readings by means of two-way communication between the meter and the central system. This enabled the customer and the utility to take part in reasonable electrical energy utilization. AMI became one of the core foundations in realizing the Smart Grid. It is hard to test the entire process of AMI system before the full deployment because it covers the broad objects from the customer to the utility operation system and requires mass data handling and management. Therefore, we design an efficient AMI network model and a simulator for performance evaluation required to simulate the network model similar to the real environment. This tool supports to evaluate the efficiency of the AMI network equipments and deployment. Additionally, it estimates the appropriate number of deployments and the proper capabilities.

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.