Faculty/Research

Research Groups

전기 에너지 변환 연구실

Electric Energy Conversion Lab.

Prof. : Prof. Ha, Jung-Ik

Research Area : 전기에너지 시스템



  • About the Laboratory & Research Area
  • . Electric Energy Conversion Technology
    - Electrical , Mechanical, and Thermal Energy Conversion with Electronics
    - Energy Efficiency, Cost Reduction, Performance, and Optimization
    . Application Fields
    - Home, Factory, Vehicle, Building, Power Generation, and so on.
    . Technology Scopes
    - Energy System Planning Control
    - Energy Conversion Machine Design and Analysis
    - Measurements and Conversion Circuits
    - Conversion Control
    - Energy Network and Smart Grid End Use Technology
    . Collaborative Works with Other Fields
    - In Electrical Engineering, Machine Design, Power System, Control, Computing, and Semiconductor
    - In Engineering and Science, Mechanical Engineering - Mechanism, Dynamics, Heat, and Manufacturing
    : Material Science - Model, Design, Process
  • Research Interests & Projects
  • ▶ 최근 관심분야
    - Small-sized Power Systems : Capacitorless inverter, dual motor drive
    - Renewable Energy Conversion Systems
    - Motor Control : Sensorless control, Dual inverter topology for EV/HEV
    - Integrated Machine

    ▶ 주요 연구과제
    - 전해캡이 없는 전동기 구동 시스템 : LG 전자
    - Multi-string 태양광 발전 시스템 : LS 산전
    - Dual motor drive, integrated machine : 삼성전자
    - 센서리스 전동기 제어 : LG 전자, 삼성 태크윈
    - 전기자동차 용 인버터 시스템 및 제어 기술 개발 : 만도
  • Journals & Patents
  • ▶ 논문
    - Y. Lee and J.-I. Ha, “Control method for mono inverter dual parallel surface mounted permanent magnet synchronous machine drive system,” IEEE Trans. Ind. Electron., [Online], DOI: 10.1109/TIE.2015.2420634.
    - S. Jung and J.-I. Ha, “Analog filtering method for sensorless AC machine control with carrier-frequency signal injection,” IEEE Trans. Ind. Electron., vol. 62, no. 9, pp. 5348–5358, Sep. 2015.
    - Y. Son and J.-I. Ha, “Direct power control of a three-phase inverter for grid input current shaping of a single-phase diode rectifier with a small DC-link capacitor,” IEEE Trans. Power Electron., vol. 30, no. 7, pp. 3794–3803, Jul. 2015.
    - K. Lee, Y. Han, and J.-I. Ha, “Wound rotor machine with single-phase stator and three-phase rotor windings controlled by isolated three-phase inverter,” IEEE Trans. Energy Convers., vol. 30, no. 2, pp. 558–568, Jun. 2015.
    - Y. Lee and J.-I. Ha, “Hybrid modulation of dual inverter for open-end permanent magnet synchronous motor,” IEEE Trans. Power Electron., vol. 30, no. 6, pp. 3286–3299, Jun. 2015.
    - W.-J. Lee, Y. Son, and J.-I. Ha, “Single-phase active power filtering method using diode-rectifier-fed motor drive,” IEEE Trans. Ind. Appl., vol. 51, no. 3, pp. 2227–2236, May/Jun. 2015.
    - Y. Han and J.-I. Ha, “Wound rotor machine fed by a single-phase grid and controlled by an isolated inverter,” IEEE Trans. Power Electron., vol. 29, no. 9, pp. 4843–4854, Sep. 2014.
    - H. Shin and J.-I. Ha, “Phase current reconstructions from DC link currents in three-phase three-level PWM inverters,” IEEE Trans. Power Electron., vol. 29, no. 2, pp. 582–593, Feb. 2014.
    - Y. Han, S. Kim, J.-I. Ha, and W.-J. Lee, “A doubly fed induction generator controlled in single-sided grid connection for wind turbines,” IEEE Trans. Energy Convers., vol. 28, no. 2, pp. 413–424, Jun. 2013.
    - J.-W. Shin, H. Shin, G.-S. Seo, J.-I. Ha, and B.-H. Cho, “Low-common mode voltage h-bridge converter with additional switch legs,” IEEE Trans. Power Electron., vol. 28, no. 4, Apr. 2013.

    ▶ 특허
    [1] Method to predict phase current, Publication No. US 8362759 B2, Jan. 29, 2013.
    [2] Method and device to generate position profile in motion controller, Publication No. US 8024061 B2, Sep. 20, 2011.
    [3] Electric power conversion apparatus, Publication No. US 20150078049 A1, Sep. 15, 2014.
    [4] Double wound rotor type motor with constant alternating current or direct current power supply input and control method thereof, Publication No. WO 2013/165100 Al, Apr. 5, 2013.

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