• Title/Summary/Keyword: EV 시장

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Understanding Electric Vehicle Consumer in Korea Market Based Upon User and Prospective Survey (국내 전기자동차 수요층 분석: 초기 구매자와 일반 소비자 조사를 토대로)

  • Park, Jiyoung;Kim, Haegon;Kim, Chansung
    • Journal of the Korea Convergence Society
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    • v.10 no.6
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    • pp.191-201
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    • 2019
  • This study aims at understanding the fundamental characteristics of EV consumer based upon user survey and understanding the challenges to promote EV adoption in Korea. Data are obtained from two different surveys. One asked 304 EV buyers in Korea and another asked 905 prospective customer about EV awareness and perception, EV purchase intention, and etc. Analysis is composed of two parts; one is about the general characteristics and purchase intention of general consumers; another is about the intent to repurchase EV owners. We discuss the policy implications to expand EV demand in Korean market based on two purchase and repurchase logit models.

Standard Strategies for Convergence Industries: A Case of Clash between Electric Vehicle Charging Standards and Smart Grid Communication Standards (미래 융합산업 표준 전략: 전기 자동차 충전 표준과 스마트그리드 통신 표준 충돌 사례)

  • Huh, Joon;Lee, Heejin
    • Journal of Technology Innovation
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    • v.23 no.3
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    • pp.137-167
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    • 2015
  • Based on the stakeholder theory, this paper analyzes a clash of standards in Korea's Electric Vehicle(EV) market, particularly between an EV charging standard and a smart grid communication standard in 2012~2013. For charging, EV is connected with the electric power grid and simultaneously exchanges data regarding the charging status. When EV is connected with the power grid, a clash between two standards may arise. It actually happened when BMW entered into the Korean EV market with the DC Combo charging system. In that course, the frequency interference occurred between the EV data communication technology adopted by BMW and the AMI(Advanced Metering Infrastructure) for the smart grid system in Korea. Standardization of Korea's EV charging systems was required to solve this problem. However, it had been delayed due to the confrontation between various stakeholders involved in the process of standardization. It lasted until the DC combo was accepted as one of the Korea EV charging standards(KSAE SAE 1772-2040, 2014.1) by KSAE(The Korea Society of Automotive Engineers) in January 2014. This is an interesting case in the age of convergence. As it deals with the standard competition not among EV standards, but a clash between the EV industry and the smart grid, i.e. electric power industry, it addresses the necessity to consider standardization processes between different industries. This study draws on the stakeholder theory to analyse the dynamics of the standard clash between EV charging systems and the smart grid system, which is a unique example of standard clash between different industries. We expect such clashes to increase in the age of convergence.

Electric Vehicle Market and Battery Related Technology Research Trends (전기자동차 시장 및 배터리 관련 기술 연구 동향)

  • KIM, YANGHWA;LIM, JAEWAN;PARK, GYUYEOL;LIM, OCK TAECK
    • Transactions of the Korean hydrogen and new energy society
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    • v.30 no.4
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    • pp.362-368
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    • 2019
  • Electric vehicles contribute greatly to energy conservation, $CO_2$ reduction and energy security through high fuel economy and various electric sources. Electric cars have a huge economic impact. More than 14 million hybrid electric cars have been sold worldwide. More than 3 million plug-in electric vehicles have been sold worldwide. The environmental impact depends greatly on the amount of national power generation, and as the electric grid becomes more and more carbon-intensive, countries are increasingly adopting hybrid and electric vehicles. Electricity is expanding beyond cars. Electric buses, trucks, and ships have similar benefits.

Consequence Analysis of Toxic Gases Generated by Fire of Lithium Ion Batteries in Electric Vehicles (전기자동차 내 리튬이온전지 화재로 발생하는 독성가스의 위험성 분석)

  • Oh, Eui-young;Min, Dong Seok;Han, Ji Yun;Jung, Seungho;Kang, Tae-sun
    • Journal of the Korean Institute of Gas
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    • v.23 no.1
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    • pp.54-61
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    • 2019
  • As the market for portable electronic devices expands, the demand for Lithium Ion Battery (LIB) is also increasing. LIB has higher efficiency than other secondary batteries, but there is a risk of explosion / fire due to thermal runaway reaction. Especially, Electric Vehicles (EV) equipped with a large capacity LIB cell also has a danger due to a large amount of toxic gas generated by a fire. Therefore, it is necessary to analyze the risk of toxic gas generated by EV fire to minimize accident damage. In this study, the flow of toxic gas generated by EV fire was numerically analyzed using Computational Fluid Dynamic. Scenarios were established based on literature data and EV data to confirm the effect distance according to time and exposure standard. The purpose of this study is to analyze the risk of toxic gas caused by EV fire and to help minimize the loss of life and property caused by accidents.

An LSTM Neural Network Model for Forecasting Daily Peak Electric Load of EV Charging Stations (EV 충전소의 일별 최대전력부하 예측을 위한 LSTM 신경망 모델)

  • Lee, Haesung;Lee, Byungsung;Ahn, Hyun
    • Journal of Internet Computing and Services
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    • v.21 no.5
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    • pp.119-127
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    • 2020
  • As the electric vehicle (EV) market in South Korea grows, it is required to expand charging facilities to respond to rapidly increasing EV charging demand. In order to conduct a comprehensive facility planning, it is necessary to forecast future demand for electricity and systematically analyze the impact on the load capacity of facilities based on this. In this paper, we design and develop a Long Short-Term Memory (LSTM) neural network model that predicts the daily peak electric load at each charging station using the EV charging data of KEPCO. First, we obtain refined data through data preprocessing and outlier removal. Next, our model is trained by extracting daily features per charging station and constructing a training set. Finally, our model is verified through performance analysis using a test set for each charging station type, and the limitations of our model are discussed.

Study on Operating Guidelines of Electric Vehicles considering Negawatt Market (수요자원 거래시장을 고려한 전기차 운영기준에 관한 연구)

  • Yang, Ken-Mo;KIM, DONG-MIN
    • KEPCO Journal on Electric Power and Energy
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    • v.1 no.1
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    • pp.67-71
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    • 2015
  • The concept known as Vehicle-to-Grid (V2G) is to provide power to help balance loads by charging at night when demand is low and sending power to the grid when demand is high. Therefore, it is important to model the cost-benefit characteristics of Electric vehicle(EV)'s operation considering the negawatt market in real time. This paper proposes a methodology to formulate the various costs and economic benefits for sending the EV's power back to the grid, including a concept of inconvenience costs caused by operating the EV as a battery. This paper also introduces the general decision-making process based on the cost-benefit analysis in order to simulate the reasonable participation of V2G service. In the case study, it is confirmed by two-case simulations that the proposed approach is useful to help EV owners' decision-making. In the future, it is expected that the proposed methodology can be used as a decision-making guideline to help prepare the EV' power transmission.

Study on the Application of V2G for Electric Vehicles in Korea Using Total Cost of Ownership Analysis (총소유비용 분석을 이용한 전기차의 V2G 도입에 대한 연구)

  • Kim, Younghwan;Lee, Jae-Seung
    • Journal of Energy Engineering
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    • v.24 no.2
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    • pp.129-143
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    • 2015
  • Increasing concerns on climate change and energy security accelerated policies to reduce green-house gas emission, especially from the transportation sector. Electric vehicle (EV) has been on the spotlight to deal with such environmental issue and V2G (Vehicle-to-Grid) technology began to draw attentions as an alternative to reduce ownership costs while contributing to an efficient and decentralized power grid. This study conducts a scenario analysis on total cost of ownership of EV under V2G scheme and compare with non-V2G EV and Internal Combustion Engine (ICE) vehicle. As result, V2G service is expected to provide an annual average profit of $210 to EV users willing to reverse flow its residual power in the battery. The profit from V2G service leaves a margin of $4,530 over operational lifetime, compared with $2,420 cost of charge for non-V2G EV. In summary, total cost of ownership of V2G-capable EV was 6.2% less than non-V2G EV and 10.2% higher than ICE vehicle. The results confirm a comparative economic advantage of operating EV under V2G scheme. Increased number of EVs with V2G service has shown to provide positive effects to power industry for valley filling in load distribution, thus, favorably increasing the overall economic feasibility.

WCDMA Radio Network Planning Issues

  • 임종태
    • The Proceeding of the Korean Institute of Electromagnetic Engineering and Science
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    • v.13 no.4
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    • pp.25-32
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    • 2002
  • 우리의 이동통신 시장은 초기 AMPS를 거쳐 IS-95 A/B, CDMA2000 1X 그리고, EV-DO까지 많은 관심과 기술의 발전 속에 진화되어왔다. 이제, 2, 3 세대 이동통신 시스템을 발판으로 다양한 멀티 미디어 서비스를 선보일 WCDMA 시스템을 상용화하기에 이르렀다. 따라서, 추후 시장의 요구에 발맞추어 신뢰성 있는 고속 데이터 서비스를 구현할 수 있도록, WCDMA 관련 기술들에 관한 중점적인 논의가 이루어져야 할 것이다. 본 고에서는 WCDMA의 망 성능(coverage, capacity, quality of service)을 향상시키기 위한 망 설계 주요 사항에 대하여 기술하고자 한다.

Analysis of the Effects of Recycling and Reuse of Used Electric Vehicle Batteries in Korea (한국의 전기차 사용 후 배터리 재활용 및 재사용 효과 분석 연구)

  • Yujeong Kim
    • Economic and Environmental Geology
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    • v.57 no.1
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    • pp.83-91
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    • 2024
  • According to the IEA (2022), global rechargeable battery demand is expected to reach 1.3 TWh in 2040. EV batteries will account for about 80% of this demand, and used EV batteries are expected to be discharged after 30 years. Used EV batteries can be recycled and reused to create new value. They can also resolve one of the most vulnerable parts of the battery supply chain: raw material insecurity. In this study, we analyzed the amount of used batteries generated by EV in Korea and their potential for reuse and recycling. As a result, it was estimated that the annual generation of used batteries for EV began to increase to more than 100,000 in '31 and expanded to 810,000 in '45. In addition, it was found that the market for recycling EV batteries in '45 could be expected to be equivalent to the production of 1 million batteries, and the market for reuse could be expected to be equivalent to the production of 36 Gwh of batteries. On the other hand, according to the plan standard disclosed by the recycling company, domestic used EV batteries can account for 11% of the domestic recycling processing capacity (pre-treatment) ('30). So it will be important to manage the import and export of used batteries in terms of securing raw materials.

Trends and Outlooks of Mobile Handset on Convergence (컨버전스 진전에 따른 이동통신단말기 동향과 전망)

  • Han, Eok-Su;Sin, Yong-Hui;Jeong, Dong-Heon
    • Electronics and Telecommunications Trends
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    • v.23 no.2 s.110
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    • pp.69-79
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    • 2008
  • 지난 수 년간 이동통신 시장은 그야말로 급격한 변화와 성장을 경험하였다. 특히 휴대폰 시장은 이미 성숙기를 지나 교체수요 시장으로 선회하고 있으며, 기술적 측면에서는 2.5세대(CDMA 1x, GPRS), 3세대(EV-DO, W-CDMA), 3.5세대(HSDPA)로 빠르게 이동하고 있다. 최근 이동통신단말기 분야에서 일어나고 있는 변화의 핵심 요소로 이동통신단말기 산업과 모바일 인터넷 콘텐츠 산업과의 융합 현상을 들 수 있다. 예를 들어 Google의 Android(플랫폼), 마이크로소프트의 Windows Mobile(mobile OS) 등 이 큰 관심을 끌고 있으며, 스마트폰 시장의 형성과 터치스크린폰의 확대 등이 예견되고 있다. 본 고에서는 이러한 융합 현상에 따른 이동통신단말기 산업 및 시장의 일반적 현황을 소개하고, 이동통신단말기와 직접 관련된 단말기의 외관적 요소, User Interface, Mobile OS 및 Platform 등을 중심으로 최근 동향 및 향후 진화방향에 대해 살펴본다.