• 제목/요약/키워드: Electric drive system

검색결과 424건 처리시간 0.029초

벡터제어방식에 의한 유도전동기 제어기 개발 (Development of Speed Controller in Induction Machine using Vector Control Method)

  • 이선희;권혁;이상정;주형길;홍성일;이승학
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1998년도 하계학술대회 논문집 F
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    • pp.1990-1992
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    • 1998
  • A vector control scheme is widely used in AC drive system in these days. In this country for commercializing the system, it has lots of dependency on advanced foreign technology. Therefore we have developed high-performance vector controlled inverter sytems ourselves for two years whose capacitives are 15kW, 30kW and 45kW. For computation of data in high speed DSP is empolyed and by using a IGBT with high switching the current ripple is reduced. Consequently, developed drive systems have high performance and accurary on speed control. There are proved in experimental results.

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선박용 전기추진 장치의 기술동향 (A Review of Electric Ship Propulsion System)

  • 박정태
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 2000년도 전력전자학술대회 논문집
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    • pp.22-25
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    • 2000
  • This paper introduces the ship propulsion system in different aspects. In fact there are many types to accomplish electric propulsion. The latest installations are based on fixed generator speed and motor speed control. The AC motor drive systems with synchroconverter cycloconverter PWM converter are chosen for the ship electric propulsion. The configurations of the ship electric propulsion. The configurationso of the ship electric propulsion system must be considered about following criteria : torque and speed performances redundancy cost harmonics available space and shape. This paper introduces possible configurations of the ship electric propulsion and the major and minor points.

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SUV급 E-REV의 요구 동력 성능을 고려한 동력원 용량선정 및 성능 해석 (The Component Sizing Process and Performance Analysis of Extended-Range Electric Vehicles (E-REV) Considering Required Vehicle Performance)

  • 이대흥;정종렬;박영일;차석원
    • 한국자동차공학회논문집
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    • 제21권2호
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    • pp.136-145
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    • 2013
  • It is very important to determine specifications of components included in the drive-train of vehicles at the initial design stage. In this study, component sizing process and performance analysis for Extended-Range Electric Vehicles (E-REV) are discussed based on the foundation of determined system configuration and performance target. This process shows sizing results of an electric driving motor, a final drive gear ratio and a battery capacity for target performance including All Electric Range (AER) limit. For E-REV driving mode, the constant output power of a Gen-set (Engine+Generator) is analyzed in order to sustain State of Charge (SOC) of the battery system.

병렬형 하이브리드 전기자동차 구동계의 Jerk 저감 제어 (Drive-train Jerk Reduction Control for Parallel Hybrid Electric Vehicles)

  • 박준영;심현성
    • 한국자동차공학회논문집
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    • 제19권1호
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    • pp.17-24
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    • 2011
  • TMED(Transmission Mounted Electric Device) parallel hybrid configuration can realize EV(Electric Vehicle) mode by disengaging the clutch between an engine and a transmission-mounted motor to improve efficiencies of low load driving and regenerative braking. In the EV mode, however, jerk can be induced since there are insufficient damping elements in the drive-train. Though the jerk gives demoralizing influence upon driving comport, adding a physical damper is not applicable due to constraints of the layout. This study suggests the jerk reduction control, composed of active damping method and torque profiling method, to suppress the jerk without hardware modification. The former method creates a virtual damper by generating absorbing torque in the opposite direction of the oscillation. The latter method reduces impulse on the mated gear teeth of the drive-train by limiting the gradient of traction torque when the direction of the torque is reversed. To validate the effectiveness of the suggested strategy, a series of vehicle tests are carried out and it is observed that the amplitude of the oscillation can be reduced by up to 83%.

MATLAB/SIMULINK를 이용한 전동기 가변속 구동시스템 모델링 및 시뮬레이션 (Modeling and Simulation with a Variable Speed Drive System of a Electric Motor Using MATLAB/SIMULINK)

  • 정삼용;최연옥;한엄용;오금곤;정수복;조금배
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 1997년도 전력전자학술대회 논문집
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    • pp.141-147
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    • 1997
  • The variable speed drive system of a electric motor is popular in industry due to its economical aspect and simplicity of implementation, comparing with a steam turbine or the other engine driven. For a large pumping load like a feedwater pump rated about or more than 20,000㎾, a synchronous motor could be primarily considered. In this paper, we studied the modelling of a variable speed drive system consisted with a load commutated inverter(LCI) and a brushless sailent pole rotor synchronous motor(SM) using MATLAB/SIMULINK. Simulation was performed with a small SM motor parameters.

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Turbine Load Set 조정을 위한 Digital Unit 개발 (A Study on the Digital Unit Development for Turbine Load Set Control)

  • 문용선;정호진;강성률;최형윤
    • 한국정보통신학회논문지
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    • 제9권3호
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    • pp.498-503
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    • 2005
  • Turbine Load Set Motor장치는 노후화 된 화력 발전소에서 출력 부하를 결정하는 중요한 장치로서, Motor를 가변하면서 발전 출력 부하를 조정하게 된다. 이러한 종래 발전시스템에서는 Set Up Range를 운영자가 수동으로 조작한 Set Up값에 따라 Motor를 회전시키게 되며, Motor를 포함한 내부적 동작에 의해서 발전 출력 부하 결정이 이루어지게 된다. 따라서 본 논문에서는 수동적으로 출력부하를 작동되는 Turbine Motor Drive Unit를 대처할 수 있는 Digital Drive Unit 장치를 개발하여 기존 Turbine Load Set Motor 성능을 지닐 수 있는 장비를 구현한다. 또한 구현한 Digital Drive Unit을 바탕으로 발전 출력 부하를 결정하는 기본 기능을 기존 Motor Drive Unit과 연결하여 작동될 수 있도록 제어 알고리즘 구현과 구현된 제어 시스템을 통해 기존 Turbine Load Set Motor Drive와 연결 가능성을 확인한다.

Fuzzy-Sliding Mode Speed Control for Two Wheels Electric Vehicle Drive

  • Nasri, Abdelfatah;Hazzab, Abdeldjabar;Bousserhane, Ismail Khalil;Hadjeri, Samir;Sicard, Pierre
    • Journal of Electrical Engineering and Technology
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    • 제4권4호
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    • pp.499-509
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    • 2009
  • Electric vehicles (EV) are developing fast during this decade due to drastic issues on the protection of environment and the shortage of energy sources, so new technologies allow the development of electric vehicles (EV) by means of electric motors associated with static converters. The proposed propulsion system consists of two induction motors (IM) that ensure the drive of the two back driving wheels. The electronic differential system ensures the robust control of the vehicle behavior on the road. It also allows controlling, independently, every driving wheel to turn at different speeds in any curve. This paper presents the study of an hybrid Fuzzy-sliding mode control (SMC) strategy for the electric vehicle driving wheels, stability improvement, in which the fuzzy logic system replace the discontinuous control action of the classical SMC law. Our electric vehicle fuzzy-sliding mode control's simulated in Matlab SIMULINK environment, the results obtained present the efficiency of the proposed control with no overshoot, the rising time is perfected with good disturbances rejections comparing with the classical control law.

마그네틱 기어를 적용한 항공기용 전기추진 시스템의 성능 연구 (Study on Performance of Electric Propulsion Systems for Aircraft applying Magnetic Gears)

  • 이성현;김래은;서정무
    • 항공우주시스템공학회지
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    • 제17권6호
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    • pp.27-34
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    • 2023
  • 본 논문은 마그네틱 기어를 적용한 항공기용 전기추진시스템에 관하여 기술한다. 항공기 추진모터는 높은 토크가 요구되기 때문에 감속기를 결합하여 토크를 증대시킬 수 있다. 하지만 기계식 기어는 마찰에 의한 손실과 열 및 진동 등으로 인해 잦은 유지 보수가 필요하다. 기계식 기어를 사용하지 않는 직접구동형 전동기의 경우 고 토크를 달성하기 위한 설계 시 전동기의 크기와 중량이 증가하게 된다. 본 논문은 항공기의 전기추진 시스템에서 기계식 기어의 유지보수와 직접구동형 전동기의 중량 증가 문제를 해결하기 위해 마그네틱 기어 적용 방안을 제안한다. 항공기용 전기추진 시스템에 적합한 마그네틱 기어를 설계하고 직접구동형 전동기와 성능을 비교함으로 마그네틱 기어의 적용 가능성을 확인한다.

삼륜 전기 자동차용 외전형 In-Wheel BLDCM의 개발 (Development of Outer-Rotor Type In-Wheel BLDCM for Three-Wheeled Electric Vehicle)

  • 정광일;안진우
    • 전기학회논문지
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    • 제61권4호
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    • pp.567-573
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    • 2012
  • Outer rotor type in-wheel Blushless DC Motor(BLDCM) for three-wheeled electric vehicle is researched. In-wheel system is to drive the electric vehicle without mechanical transmission, shaft, differential gears or other mechanical system. The motor is designed considering the performance requirements and drive modes of the vehicle. The determined dimensions as well as the slot and rotor pole are simulated by magnetic and thermal finite element analysis and ansys workbench to analyze the performance and heating of the motor. In order to verify the performance characteristics of the proposed motor, the experiment tests are executed and satisfy well the requirements.