• 제목/요약/키워드: AC motor drive

검색결과 233건 처리시간 0.038초

고성능 콤팩트형 AC모터드라이브 고조파 필터 제안 (A Proposal of Compact Passive Harmonic Filter for ac Motor Drive)

  • 박병주;윤동철;오정철;배병열;황안일;유항규;최석근
    • 전기학회논문지P
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    • 제67권4호
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    • pp.191-199
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    • 2018
  • The harmonic reduction method of ac motor drive, ACL and DCL were commonly used, but the current distortion ratio was only 35%, thus the several different types of filters as BBHF(broad band harmonic filter), HHF(hybrid harmonic filter), NHHF(new hybrid harmonic filter) have been developed to satisfy the IEEE Std. 519 harmonic limitation. However, these filters had been limited marketability due to cost and size problems. This study suggests the methods to reduce cost and size of the harmonic filter including topologies, besides we discussed simulation results of the power system with regard to the implementation and performance of the filters.

Output filter design for conducted EMI reduction of PWM Inverter-fed Induction Motor System

  • Kim Lee-Hun;Won Chung-Yuen;Kim Young-Seok;Choi Se-Wan
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 2001년도 Proceedings ICPE 01 2001 International Conference on Power Electronics
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    • pp.761-767
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    • 2001
  • In this paper, filtering techniques to reduce the adverse effects of motor leads on high-frequency PWM inverter fed AC motor drives will be examined. The filter was designed to keep the motor terminal from the cable surge impedance to reduce overvoltage reflections, ringing, and the dv/dt, di/dt. Therefore, filtering techniques are investigated to reduce the motor terminal overvoltage, ringing, and EMI noise in inverter fed ac motor drive systems. The output filter is used to limit the rate of the inverter output voltage and reduce EMI(common mode noise) to the motor. The performance of the output filter is evaluated through simulations (PSIM) and experiment on PWM inverter-fed ac motor drive(3phase, 3hp(2.2kw), input voltage 220/380V, induction motor). An experimental PWM drive system reduction of conducted EMI was implemented on an available TMS320C31 microprocessor control board. Finally, experimental results showed that the inverter output filter reduces more CM noise than the LPF(low pass filter) and reduce overvoltage and ringing at the motor terminal.

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Development of a Switched Reluctance Motor-based Electric AC Compressor Drive for HEV/EV Applications

  • Kim, Jaehyuck;Jeong, Yong-Hoe;Jeon, Yong-Hee;Kang, Jun-Ho;Lee, Seunghun;Park, Jang-Yeop
    • Journal of Magnetics
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    • 제19권3호
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    • pp.282-290
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    • 2014
  • This paper discusses the development of a 3.5 kW switched reluctance motor (SRM)-based electric air-conditioning (AC) compressor, focusing primarily on the design aspects of the SRM and the integrated controller. In addition to the increased price of rare-earth magnets, SRM's operation capability at high speed and high temperature makes the SRM a viable alternative to the permanent magnet motor for electrically driven automotive air conditioning compressors. A compact and energy efficient scroll compressor is designed and constructed. Two feasible SRM topologies are considered, in terms of efficiency, torque ripple, and acoustic noise. Compact drive electronics are designed and employed to drive the SRM-based compressor. The static and dynamic performance is validated by simulation and experiment.

AC Servo Motor의 구동특성에 관한 연구 (A study of the characteristic about AC Servo Motor's driving)

  • 윤형상;윤정필;강병복;차인수
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 2002년도 전력전자학술대회 논문집
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    • pp.274-277
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    • 2002
  • Servo motor is motor for control that have fast response and sphere of wide speed control. This motor is classed by DC servomotor and AC servomotor. This paper allows the research purpose to analyze drive special quality of servomotor that is driven by control signal. Also, try to apply control algorithm and analyze special quality change of AC servomotor drive with simulation

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PWM 인버터 시스템에서의 전도노이즈 저감을 위한 출력필터 설계에 관한 연구 (Output Filter Design for Conducted EMI Reduction of PWM Inverter-Fed AC Motor Drive System)

  • 김이훈;박규현;원충연;김영석;최세완
    • 전력전자학회논문지
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    • 제6권6호
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    • pp.546-555
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    • 2001
  • 본 논문에서는 PWM 인버터-유도전동기 구동시스템의 전도노이즈 저감을 위한 출력필터 설계에 관한 연구를 수행하였다. 전도노이즈는 고전압 입력, 고용량 구동시스템 그리고 긴 전동기 터미널 등의경우에서 크게 문제가 된다. 고압력을 갖는 시스템에서는 높은 압력에 비례한 직류 링크 전압을 갖고 이에 따라 스위칭 dv/dt가 순간 최대 CM 접지전류를 발생시킨다. 그러므로 이에 대한 대책이 필요하다. 따라서 최근 산업 현장에서 많이 사용되고 있는 PWM 인버터를 설계 제작하여 유도전동기를 구동하고 이에 따라 발생되는 전도노이즈 성분을 감쇠 시킬 수 있는 출력필터를 설계하였고 제작 및 실험을 통하여 그 타당성을 입증하였다.

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뉴럴네트웤을 이용한 AC 서보 전동기의 속도제어 (Speed control of AC Servo motor using neural network)

  • 반기종;윤광호;최성대;남문현;김낙교
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2005년도 제36회 하계학술대회 논문집 D
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    • pp.2747-2749
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    • 2005
  • This paper presents an intelligent control system for an ac servo motor dirve to track periodic commands using a neural network. AC servo motor drive system is rather similar to a linear system. However, the uncertainties, such as machanical parametric variation, external disturbance, uncertainty due to nonideal in transient state. therefore an intelligent control system that isan on-line trained neural network controller with adaptive learning rates.

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DSP를 이용한 직접구동형 AC모터 위치제어기의 설계 (Design of Direct Drive AC Motor Position Controller Using DSP)

  • 박성언;김갑일;이광무;이창섭;장태성
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1995년도 하계학술대회 논문집 B
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    • pp.846-848
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    • 1995
  • Recently, direct drive AC servo motor and DSP is widely used in the factory automation and related field due to the enhanced control and digital technology. In this paper, position control of direct drive AC servo motor and numerical interpolation algorithms are studied using DSP for the future applications. In the direct drived motor control, encoder pulse is divided into the quadruple pulse for the higher resolution and high speed pulse(10MHz) is used as reference for the slower speed motor control (M/T method). As for the general position control, PI controller is adapted for position control. In the trajectory tracking numerical algorithm, interpolation of straight line and curve algorithms are studied for the realization of path following capabilities of XY table. As for the DSP, ADSP 2105 is selected for the economy and performance points of view.

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교류 전동기의 고효율 운전을 위한 3상 인버터의 입력전력 추정 기법 (Input Power Estimation Method of a Three-phase Inverter for High Efficiency Operation of an AC Motor)

  • 김도현;김상훈
    • 전력전자학회논문지
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    • 제24권6호
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    • pp.445-451
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    • 2019
  • An input power estimation method of a three-phase inverter for the high-efficiency operation of AC motors is proposed. Measuring devices, such as DC link voltage and input current sensors, are required to obtain the input power of the inverter. In the proposed method, the input power of the inverter can be estimated without the input current sensor by using the phase current information of the AC motor and the switching pattern of the inverter. The proposed method is more robust to parameter error than conventional method. The validity of the input power estimation method is verified through experiments conducted on a 1 kW permanent-magnet synchronous motor drive system.

전력회생형 부하시험장치에 관한 연구 (Study on the equivalent test equipment for AC Motor)

  • 김현수;김한종;허재영;최창식;이제필;장철호;정종태
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 1997년도 전력전자학술대회 논문집
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    • pp.295-298
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    • 1997
  • In large system, design margin makes relatively price higher. So, optimal design through exact analysis of thermal behavior is needed. In this paper, we propose the equivalent load test facility using two inverter & converter system and inductors. Applying actual electrical profiles for motor drive, thermal characteristics of power converter fed AC motor drive are obtained, and the results are compared with simulation results.

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단일전류센서를 이용한 교류전동기 구동에서 전동기 상수동정과 그 오차 (Parameters identification and their errors for AC motor drive systems using the single current sensor technique)

  • 신휘범
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 2000년도 전력전자학술대회 논문집
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    • pp.587-590
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    • 2000
  • An estimation scheme is used for solving two practical problems of the single current sensor technique. To improve the effect of parameter uncertainties the method that identifies motor parameters for AC motor drive systems using the single current sensor technique is presented. And the parameter identification error and its cause atre examined. It gives good performances for identify in parameters and reconstructing phase currents.

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