• 제목/요약/키워드: Electric home

검색결과 365건 처리시간 0.042초

Home Energy Management System for Residential Customer: Present Status and Limitation

  • Lee, Sunguk;Park, Byungjoo
    • International Journal of Advanced Culture Technology
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    • 제6권4호
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    • pp.284-291
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    • 2018
  • As environmental pollution has become worse green technologies to replace or reduce consumption of fossil fuel get spotlight from government, industry and academia globally. It is reported that 40% of carbon dioxide emission is caused by electricity power generation. And 37% of end user electricity power is used by residential costumer in US. Smart Grid is considered as one of promising technology to alleviate severe environmental problem. In residential environment, Home Energy Management System (HEMS) can play a key role for green smart home. The HEMS can give several benefits like aslowering electric utility bill, improvement of efficiency of electric power consumption and integration of generator using renewable energy resources. However just limited functions of HEMS can be used for residential customer in real life because of lack of smart function in home appliances and optimal managing software for HEMS. This study provides comprehensive analysis for Home Energy Management System for residential customer. Simple HEMS system with real products on the market are explained and limitation of current HEMS are also discussed.

주택 자동화를 위한 유비쿼터스 기반의 디지털 분전반 프로토타입 개발 (Development of Ubiquitous based Digital Switchgear Prototype for Home Automation)

  • 고윤석;윤태민;윤석열
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2007년도 제38회 하계학술대회
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    • pp.555-556
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    • 2007
  • This paper proposes a new concept's IDSFHA(Intelligent Digital Switchgear For Home Automation) which can obtain the safety, the reliability and the easy to correspond to the request of the general electric customer or electric power company under the ubiquitous-based home automation environments The IDSFHA is designed by analyzing their requirement functions, a 32-bit micro processor is adopted as main controller to support efficiently the designed functions. The single phase power IC(ADE7753) is utilized to collect the electric power information, and makes it possible to communicate as internet among the IDSFHA and their using the ethernet convertor. In the proposed IDSFHA, the several functions are implemented such as the earth leakage level display and waveform transmitting, the electric power using fee display, voltage management, load management and load control function. Finally, the prototype of the IDSFHA is made experimently based on the designed results.

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가정 요양용 전동침대의 사용성평가 지표 개발 (Development of Usability Assessment Indicator of Adjustable Electric Beds for Home Care)

  • 유재성;김봉선
    • 대한안전경영과학회지
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    • 제18권1호
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    • pp.45-55
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    • 2016
  • In this study we carry out usability evaluation for adjustable electric beds for home care that are used the most by the elderly, and examines dissatisfaction of users. In this sense, we performed an interview with stakeholders including bed users, developers and suppliers to develop usability evaluation contents. In addition, we carried out feasibility and reliability study over evaluation form through usability assessment, and developed usability evaluation indicator.

New Circuit Topology of Single-Ended Soft-Switching PWM High Frequency Inverter and Its Performance Evaluations

  • Deguchi Y.;Moisseev S.;Nakaoka M.;Hirota I.;Yamashita H.;Omori H.;Terai H.
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 2001년도 Proceedings ICPE 01 2001 International Conference on Power Electronics
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    • pp.247-250
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    • 2001
  • This paper presents a simple and cost effective circuit topology of single-ended type high frequency quasi-resonant PWM inverter using IGBTs, which can operate under wide soft switching operation range based on ZCS for main power switch as compared with a conventional active voltage-clamped ZVS-PWM high frequency quasi-resonant inverter developed previously. In principle, this new circuit topology can efficiently operate under a constant frequency PWM control-based power regulation scheme. In particular, it is noted that the zero current soft switching (ZCS) commutation can achieve for the main active power switch. On the other hand, the zero voltage soft switching (ZVS) commutation can also achieve for the auxiliary active power switch. The operating principle of this high-frequency Inverter treated here and its power regulation characteristics are illustrated on the basis of the simulation and feasible experimental results.

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Utility-Connected Solar Power Conditioner Using Edge-Resonant Soft Switching Duty Cycle Sinewave Modulated Inverter Link

  • Ogura, Koki;Chandhaket, Srawouth;Nakaoka, Mutsuo;Terai, Haruo;Sumiyoshi, Shinichiro;Kitaizumi, Takeshi;Omori, Hideki
    • Journal of Power Electronics
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    • 제2권3호
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    • pp.181-188
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    • 2002
  • The utility interfaced sinewave modulation Inverter for the solar photovoltaic power conditioner with a high frequency transformer is presented for residential applications. As compared with the conventional full-bridge hard switching slnewave PWM inverter with a high frequency link, the simplest single-ended edge-resonant soft switching sinewave inverter with a sinewave duty cycle pulse control scheme is implemented, resulting in size and weight reduction, low cost and high efficiency This paper presents a prototype system of the sinewave zero voltage soft switching sinewave inverter for solar power conditioner, along with its operating principle and unique features. In addition to these, this paper discusses a control implementation to deliver high quality output current. Major design of each component and the power loss analysis under actual power processing is also discussed and evaluated from an experimental point of view A newly developed utility-connected sinewave power conditioning circuit which achieves 92.5% efficiency under 4kW output is demonstrated.

A NOVEL ZVS-PWM QUASI-RESONANT INVERTER WITH ACTIVE VOLTAGE-CLAMPED CAPACITOR FOR HIGH-FREQUENCY INDU-HEATED APPLIANCE

  • K.Izaki;I.Hirota;H.Yamashita;H.Omori;K.Matsumoto;K.Nishida;J.M.Sun;Na, M.kaoka
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 1998년도 Proceedings ICPE 98 1998 International Conference on Power Electronics
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    • pp.1047-1050
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    • 1998
  • This paper describes an advanced prototype of voltage-fed zero voltage soft-switching PWM resonant inverter with an active voltage clamped capacitor, which is put into practice for high-frequency high-power induction-heated appliances. This application-specific quasi-resonant inverter using the latest generation IGBTs for soft-switching can regulate its output power under a principle of a fixed frequency ZVS-PWM strategy. Its operating principle and unique features are presented as compared with a conventional quasi-resonant ZVS inverter for induction-heated cooker, together with its power regulation characteristics on the basis of its simulation and experimental results. The steady-state performances of this inverter developed for multi-burner type induction-heated food cooking appliance are evaluated and discussed from a practical point of view.

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스마트카드 및 동적 ID 기반 전기 자동차 사용자 인증 스킴 (Smart Card and Dynamic ID Based Electric Vehicle User Authentication Scheme)

  • 정수영;곽진
    • 디지털융복합연구
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    • 제11권7호
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    • pp.141-148
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    • 2013
  • 스마트그리드는 정보통신기술을 이용하여 전력공급자와 소비자의 양방향통신을 가능하게 한다. 또한 동적인 전력 공급이 가능하기 때문에 전기 자동차 기술과 접목시킬 경우 전기 자동차 충전 인프라를 활성화시키고 전기 자동차의 배터리를 가정용 축전지로 활용하여 재판매할 수도 있다. 이러한 전기 자동차 충전 인프라는 가정, 아파트, 건물, 기타 충전소 등에 고정적으로 위치하여 있고 사용자만 유동적으로 서비스를 이용한다. 만약 유동적으로 서비스를 이용하는 사용자에 대해 인증이 이루어지지 않을 경우 전력 서비스의 불법적인 사용, 전력 정보 유출, 불법적인 전력 요금 변경 등의 피해가 발생할 수 있다. 본 논문에서는 스마트그리드 환경에서 안전하게 전기 자동차 관련 서비스를 이용하기 위해 스마트카드 및 동적 ID 기반 사용자 인증 스킴을 제안한다.