RESEARCH

2022. 12 ~ 2024. 06

• Development of sensorless control algorithm for SPMSM
  (SPMSM의 센서리스 알고리즘 개발)

• Sponsor : LCTEK Co.

2022. 06 ~ 2025. 02

• Basic Research Laboratory for Integrated Power System of Fuel Cell Electric Ships (Collaborated)

• Sponsor : National Research Foundation of Korea (NRF)

2021. 03 ~ 2024. 02

• Core technologies of power conversion and energy management for future eco-friendly seaport microgrids

• Sponsor : National Research Foundation of Korea (NRF)

2020. 11 ~ 2021. 04

• Development of smart inverter systems with fault diagnosis function

• Sponsor : MPST Co.

2020. 09 ~ 2027. 08

• BK21 Four : Brain Korea 21 Fostering Outstanding Universities for Research

• Future electric energy convergence control technology

2018. 05 ~ 2021. 04

• • Research on stability analysis based on harmonic state-space model and stabilizing techniques of transient bus-voltage oscillations for stand-alone DC microgrids
    (고조파 상태공간 기반의 해석 모델을 이용한 에너지 자립형 직류 마이크로그리드의 안정도 해석 및 계통 전압의 과도상태 진동 저감 기법 개발)

  • Sponsor : Korea Electric Power Corporation (KEPCO)

2017. 12 ~ 2020. 11

• • Development of SCIG-based low noise SWT for economy
    (경제성 확보를 위한 SCIG 기반 저소음 소형 풍력발전 시스템 개발)

  • Sponsor : Korean Energy Technology Evaluation and Planning (KETEP, Collaborated with Geumpoong Co.)

2017. 09 ~ 2020. 08

• • Power conversion and management systems for flatform construction of large charging station of electric vehicles
    (대용량 전기차 충전 스테이션 플랫폼 구축을 위한 전력 변환 및 관리 시스템)

  • Sponsor : National Research Foundation of Korea (NRF)

2017. 04 ~ 2021. 12

• • Advanced track for core technology development of MMC-HVDC power conversion systems
    (MMC-HVDC 전력변환시스템 핵심기술 고급트랙)

  • Sponsor : Korean Energy Technology Evaluation and Planning (KETEP)

2017. 01 ~ 2017. 12

• • Control of genset and power converter systems for DC distribution
    (직류 배전용 엔진-발전기 및 전력변환기 시스템의 제어기 개발)

  • Sponsor : Bokuk Electric Ind. Co. Ltd.

2016. 07 ~ 2016. 11

• • Torque ripple reduction for hall sensor misalignment of BLDC Motors
    (BLDC 모터의 홀센서 정렬 불일치에 기인한 토크 리플 저감 기술)

  • Sponsor : Ministry of SMEs (Collaborated with LCTEK Co.)

2015. 06 ~ 2015. 12

• • Fault diagnosis and tolerant control for hall-sensor failure of BLDC Motors
    (BLDC 전동기 홀센서의 고장 진단 및 허용제어)

  •  Sponsor : National Research Foundation of Korea (NRF) / Leaders in INdustry-university Cooperation+ (LINC+)

2014. 11 ~ 2017. 10

• • Integrated control technology of DC distribution power system for electric ships
    (전기선박의 직류배전 시스템의 통합적 전력제어 기술개발)

  • Sponsor : National Research Foundation of Korea (NRF)

2014. 7 ~ 2014. 12

• • Active damping control of single-phase PCS for PV system
    (단상 태양광 PCS의 능동 댐핑 제어)

  • Sponsor : NRF / (LINC+)

2013. 09 ~ 2020. 08

• • BK21 Plus program

  • Development of advanced smart mechatronics systems
    (차세대 스마트 메카트로닉스 시스템 개발팀 )

  • Sponsor :National Research Foundation of Korea (NRF) 

2013. 03 ~ 2014. 12

• • BLDC motor position control of 2-DOF gimbal system
    (BLDC 모터를 이용한 2축 짐벌(Gimbal) 시스템의 위치제어)

  • sponsor : LCTEK

2013. 02 ~ 2014. 01

• • Development of new topology and control technique of HVDC transmission system
    (HVDC 송전 시스템의 새로운 토폴로지 및 제어 기술 개발)

  • sponsor : Korea Electric Power Corporation (KEPCO)

2012. 05 ~ 2015. 04

• • Control techniques for grid converters of T-type three-Level structure
    (T-형 3-레벨 그리드 컨버터의 제어 기술)

  • sponsor : National Research Foundation of Korea (NRF)

2012. 04 ~ 2013. 03

• •  The development of optimal control algorithm for 5MW offshore wind farm
    ( 5MW급 해상풍력터빈 발전단지 최적 운용제어 알고리즘 개발)

  • sponsor : Hyosung Heavy Industries Co., Ltd

2011. 08 ~ 2011. 11

• • The method to find the improved PLL and current control for 5kW wind power inverter in the case of grid voltage distorted
    (계통 전압 왜곡시 5kW급 풍력 인버터의 PLL 및 전류 제어 성능 개선)

  • sponsor : Small and Medium Business Administration (SMBA) (Seoltech Co., Ltd.)

2010. 10 ~ 2011. 02

• • Development of sensorless control method for induction machine
    (센서리스 인덕션 모터제어 기술개발)

  • sponsor : Magplus Co., Ltd

2010. 06 ~ 2012. 05

• • Development of high efficiency energy regeneration & power supply system using idling power of vehicle engine
    (차량엔진의 유휴동력를 이용한 고효율 에너지 회생•공급장치 개발)

  • sponsor : Small and Medium Business Administration (SMBA) (석문전기)

2009. 05 ~ 2012. 04

• • Development of low-speed high-yorque direct drive motor technology for industrial applications
    (산업용 저속 고토크 DD전동기 기술개발 (고토크화))

  • sponsor : KERI

2009. 06 ~ 2012. 05

• • Advanced control techniques of variable-speed DFIG wind turbine systems
    (가변속 DFIG 풍력터빈 시스템의 핵심 제어 기술 개발)

  • sponsor : National Research Foundation of Korea (NRF)

2009. 06 ~ 2012. 05

• • Control system for wind power generation
    (발전기 출력 품질제어 기술 개발)

  • sponsor : Ministry of Knowledge Economy(Collaborated)

2009. 06 ~ 2012. 05

• • Fault diagnosis and fault-tolerant control techniques of three-phase AC/DC/AC converters
    (3상 AC/DC/AC 컨버터의 고장진단 및 고장허용 제어기술 개발)

  • sponsor : KESRI

2008. 04 ~ 2010. 03

• • Power quality control techniques of grid-connected wind power generation systems
    (계통연계형 풍력발전 시스템의 전력품질제어 기술)

  • sponsor : Korea Western Power Co. Ltd.

2008. 03 ~ 2009. 02

• • Development of torque ripple reduction algorithm for PMSM of automotive EPS
    (자동차 EPS용 PMSM의 토크리플 저감 알고리즘 개발)

  • sponsor : Ministry of Education, Science and Technology

2007. 06 ~ 2011. 05

• • Design and operation of microgrid system
    (마이크로그리드 시스템의 설계 및 운용)

  • sponsor :  MOCIE

2006. 01 ~ 2008. 12

• • Development of design technology and simulator of power conversion control system for high-Voltage and high-Power Applications (6600V, 1 MVA)
    (고압•대용량(6600V, 1MVA급) 전력변환 제어시스템 설계기술 및 시뮬레이터 개발)

  • sponsor : KESRI 

2006. 01 ~ 2006. 12

• • Wind turbine simulator considering turbine blade characteristics
    (터빈 블레이드의 특성을 고려한 풍력 발전 시뮬레이터 개발)

  • sponsor : Korea Electric Power Corporation (KEPCO)

2006. 01 ~ 2008. 12

• • Control system for high voltage power converters
    (고전압 전력용 컨버터를 위한 제어시스템 개발)

  • sponsor :  Korea Electric Power Corporation (KEPCO)

2005. 12 ~ 2006. 11

• • Deterioration diagnosis of capacitor bank using voltage injection
    (전압주입을 이용한 커패시터 뱅크의 고장 진단)

  • sponsor : KRF

2004. 12 ~ 2007. 11

• • Development of control algorithm of high power variable-speed wind generators
    (대용량 가변속 풍력발전기 제어 알고리즘 개발)

  • sponsor : Hyundai Heavy Industry

2003. 12 ~ 2004. 11

• • Maximum output power control of wind generation system using fuzzy logic control
    (퍼지제어를 이용한 풍력발전 시스템의 최대 출력제어)

  • sponsor :  KESRI

2003. 05 ~ 2004. 04

• • Hybrid-type active poser filters for power quality improvement
    (전력품질 개선을 위한 복합형 능동필터 연구개발)

  • sponsor :  EESRI

2002. 10 ~ 2003. 09

• • Two-mode sensorless control of PMSM using current controller output voltage

  • sponsor : KESRI

2002. 09 ~ 2004. 08

• • Optimal design of inverters for grid-connected photovoltaic generation system and experimental study

  • sponsor :  EESRI 

2002. 03 ~ 2003. 02

• • Capacitance estimation of dc link capacitor in three-phase ac/dc/ac PWM converters

  • sponsor : Yeungnam Univ.

2001. 05 ~ 2001. 08

• • Sensorless control of high speed BLDC motor drives

  • sponsor : Neuros

2001. 04 ~ 2004. 03

• • Cage-type induction generator system for wind power generation

  • sponsor : KOSEF

2001. 03 ~ 2002. 02

• • DTC of the 3-level inverter fed induction motor drive with output LC filter and boost transformer
    (출력단 정현파 필터 및 승압변압기 부착시 인버터 DTC기법)

  • sponsor :  Hyundai Heavy Industry

2000. 09 ~ 2001. 09

• • Low-cost single to three phase power converter development for induction motor drives
    (유도전동기 구동을 위한 저가형 단상-3상 전력변환장치 개발)

  • sponsor : EESRI

2000. 09 ~ 2001. 08

• • Hybrid-type active power filters for compensating harmonic currents and unbalanced source voltages

  • sponsor :  KRF

2000. 03  ~ 2001. 02

• • High performance control of three-phase PWM rectifiers eliminating ac-side sensors

  • sponsor :  Yeungnam Univ.

1999.10. ~ 2000. 09

• • Lifetime estimation of electrolytic capacitor for inverters

  • sponsor : EESRI

1997. 08 ~ 1998. 08

• • Instantaneous voltage control of PWM converters using feedback linearization

  • sponsor : EESRI

1996. 03 ~ 1997. 02

• • Multivariable state feedback conrol for three-phase power conversion systems 

  • sponsor : Yeungnam Univ.

1996. 03 ~ 1997. 02

• • DC power supply for GTO gate driver

  • sponsor : POSCON

1996. 03 ~ 1997. 02

• • Anti-windup of current regulators considering inverter saturation
    (인버터의 포화를 고려한 전류제어기의 Anti-Windup)

  • sponsor : KOSEF

1995. 09 ~1996. 08

• • Overmodulation technique for PWM inverters

  • sponsor : EESRI

1994. 10 ~ 1995. 09

• • PWM current source converter and inverter system for induction motor drives

  • sponsor :  KRF

1994. 10 ~ 1995. 09

• • Vector control of induction motor fed by space vector PWM inverter

  • sponsor : Yeungnam Univ.