• 제목/요약/키워드: Motor Drive

검색결과 2,628건 처리시간 0.027초

DC Motor Drive with Circuit Balancing Technique to Reduce Common Mode Conducted Noise

  • Jintanamaneerat, Jintanai;Srisawang, Arnon;Prempraneerach, Yothin
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2003년도 ICCAS
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    • pp.1881-1884
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    • 2003
  • In some requirements of dc motor drive circuit applications are high quality output with generation of low internal conducted EMI. However the conventional dc motor drive circuits have been usually using unbalanced circuit which generates the high conducted EMI to the frame ground. This paper presents a balanced dc motor drive circuit which is effective way to reduce the common-mode noise. The circuit balancing is to make the noise pick up or occurring in both conductor lines, signal path and return path is equal in amplitude and opposite phase so that it will cancel out in the frame ground. The common-mode conducted noise reduction of this proposed dc motor drive is confirmed by experimental results.

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Three-phase Motor Drive IC for Automotive Applications (자동차용 3상 모터 드라이브 IC)

  • Jung, Jin-Soo;Park, Shi-Hong
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • 제22권7호
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    • pp.563-566
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    • 2009
  • This paper presents a motor drive IC for automotive applications. The drive IC is dedicated to control and drive external MOSFETs which directly drive 3-phase motor with a high current. In case of driving high-side power switches, the bootstrap topology is widely used. however, it requires three bootstrap diode and three capacitor respectively. And it needs a minimum charging time to maintain high-side voltage. The motor drive IC uses a charge-pump circuit for all three high-side voltage with various protection schemes for automotive applications.

Three-phase Motor Drive IC for automotive applications (자동차용 3상 모터 드라이브 IC)

  • Jung, Jin-Soo;Hwang, Seung-Hyun;Park, Shi-Hong
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 한국전기전자재료학회 2009년도 춘계학술대회 논문집
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    • pp.41-42
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    • 2009
  • This paper presents a motor drive IC for automotive applications. The drive IC is dedicated to control and drive external MOSFETs which directly drive 3-phase motor with a high current. In case of driving high-side power switches, the bootstrap topology is widely used. However, it requires three bootstrap diode and three capacitor respectively. And it needs a minimum charging time to maintain high-side voltage. The motor drive IC uses a charge-pump circuit for all three high-side voltage with various protection schemes for automotive applications.

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A Study on a Control Method for Small BLDC Motor Sensorless Drive with the Single Phase BEMF and the Neutral Point (소형 BLDC 전동기 센서리스 드라이브의 단상 역기전력과 중성점을 이용한 제어기법 연구)

  • Jo, June-Woo;Hwang, Don-Ha;Hwang, Young-Gi;Jung, Tae-Uk
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • 제28권9호
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    • pp.1-7
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    • 2014
  • Brushless Direct Current(BLDC) Motor is essential to measure a rotor position because of that this motor type needs to synchronize the rotor's position and changeover phase current instead of a brush and commutator used on the existing dc motor. Recently, many researches have studied on sensorless control drive for BLDC motor. The conventional control methods are a compensation value dq, Kalman filter, Fuzzy logic, Neurons neural network, and the like. These methods has difficulties of detecting BEMF accurately at low speed because of low BEMF voltage and switching noise. And also, the operation is long and complex. So, it is required a high-performance microprocessor. Therefore, it is not suitable for a small BLDC motor sensorless drive. This paper presents control methods suitable for economic small BLDC motor sensorless drive which are an improved design of the BEMF detection circuit, simplifying a complex algorithm and computation time reduction. The improved motor sensorless drive is verified stability and validity through being designed, manufactured and analyzed.

Four-Quadrant Operation of a Single-Switch-based Switched Reluctance Drive (단일 스위치 기반의 4상한 운전 SRM 드라이브)

  • Ha, Keun-Soo
    • The Transactions of The Korean Institute of Electrical Engineers
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    • 제59권2호
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    • pp.338-343
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    • 2010
  • Low cost motor drives are being sought for high volume energy efficient home appliances. Key to the realization of such low cost motor drives is to reduce the power electronic converter in terms of its components, particularly the active devices, finding the motor with least complexity for manufacturing and a controller that could extract the desired performance from the machine and converter combination. These and other factors such as self-starting, speed control over a wide range and most of all the crowning aspect of a four quadrant operation with bare minimum number of controllable switch (or switches) remain as formidable challenges for low cost motor drive realization. In this paper, a four quadrant switched reluctance motor (SRM) drive with only one controllable switch is realized by using a two-phase machine. The theory and operation of the proposed four-quadrant SRM drive with the proposed control algorithm for its realization are described. The motor drive is modeled, simulated and analyzed to verify its feasibility for self-starting, speed control and for four quadrant operation and the simulation results are presented. Experimental results confirm the validity of the proposed control algorithm for four quadrant control of the SRM drive. The focus of the paper is mainly directed toward the control algorithm for realizing the four-quadrant operation of the two-phase SRM drive with a single controllable switch converter.

Stability Improvement of a V/f Controlled Induction Motor Drive System using a Dynamic Current Compensator (다이나믹 전류보상기를 이용한 V/f 제어 유도전동기 드라이브 시스템의 안정도 향상)

  • 정강률
    • The Transactions of the Korean Institute of Electrical Engineers B
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    • 제53권6호
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    • pp.402-408
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    • 2004
  • This paper proposes the novel V/f control method to improve the stability of a V/f controlled induction motor drive system. The conventional V/f control method used in the proposed V/f control method is a vector-based method that is slightly different from the existing conventional V/f control method. The proposed control method uses a dynamic current compensator to improve the stability of a V/f controlled induction motor drive system. This proposed method is easy to implement and completely eliminates the motor oscillation phenomenon causing the instability of a V/f controlled induction motor drive system, especially when the system is driven near the resonant frequency in steady-state with light load. Additionally, this paper analyzes theoretically the instability of a V/f controlled induction motor drive system and shows the validity of the Proposed V/f control method through simulation and experimental results.

Performance Improvement Design and Characteristics Analysis of EPS SRM (EPS용 SRM의 효율향상 설계 및 특성실험)

  • Kim Bong-Chul;Ahn Jin-Woo
    • Proceedings of the KIEE Conference
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    • 대한전기학회 2004년도 하계학술대회 논문집 B
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    • pp.1022-1024
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    • 2004
  • This paper presents a design and characteristics analysis of an SRM drive for EPS application. A rack mounted EPS system is considered in this paper. In the unrestricted design conditions, motor parameters are determined for sufficient torque and speed with some restrictions. For the smooth torque generation and simple circuit of power system, 12/8 motor drive is considered. With FEM and magnetic circuit analysis, redesigned motor is simulated to meet the requirement of specifications. Effectiveness of the suggested SRM drive for EPS application is verified by redesigned motor drive tests.

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Analysis of Cascaded H-Bridge Multilevel Inverter in DTC-SVM Induction Motor Drive for FCEV

  • Gholinezhad, Javad;Noroozian, Reza
    • Journal of Electrical Engineering and Technology
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    • 제8권2호
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    • pp.304-315
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    • 2013
  • In this paper, analysis of cascaded H-bridge multilevel inverter in DTC-SVM (Direct Torque Control-Space Vector Modulation) based induction motor drive for FCEV (Fuel Cell Electric Vehicle) is presented. Cascaded H-bridge multilevel inverter uses multiple series units of H-bridge power cells to achieve medium-voltage operation and low harmonic distortion. In FCEV, a fuel cell stack is used as the major source of electric power moreover the battery and/or ultra-capacitor is used to assist the fuel cell. These sources are suitable for utilizing in cascaded H-bridge multilevel inverter. The drive control strategy is based on DTC-SVM technique. In this scheme, first, stator voltage vector is calculated and then realized by SVM method. Contribution of multilevel inverter to the DTC-SVM scheme is led to achieve high performance motor drive. Simulations are carried out in Matlab-Simulink. Five-level and nine-level inverters are applied in 3hp FCEV induction motor drive for analysis the multilevel inverter. Each H-bridge is implemented using one fuel cell and battery. Good dynamic control and low ripple in the torque and the flux as well as distortion decrease in voltage and current profiles, demonstrate the great performance of multilevel inverter in DTC-SVM induction motor drive for vehicle application.

Design and Implementation of integrated drive circuit for a small BLDG Motor (드라이브 내장형 소형 BLDC 모터의 설계와 구현)

  • Choi, J.H.;Lee, J.B.;Rhyu, S.H.;Chung, J.K.;Sung, H.G.
    • Proceedings of the KIEE Conference
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    • 대한전기학회 2003년도 춘계학술대회 논문집 전기기기 및 에너지변환시스템부문
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    • pp.170-172
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    • 2003
  • Among low power servo applications, classical DC motors are very popular because they are reasonably cheap and easy to control. The main disadvantage is the mechanical collector which has only a limited life period. Also, brush sparking can destroy the rotor coil, generate EMC problems. So permanent magnet brushless do motors and drives are being used increasingly in a wide range of applications. This has been made possible with the advantages of high performance permanent magnets with high coercively and residual magnetic, which make it possible for the PM to have superior power density, torque to inertia ratio and efficiency, when compared to an induction or conventional dc machine. This paper presents the design of a PM brushless dc motor drive simplistically operates as a classical dc motor. The BLDC motor drive system for this paper composes to the power integrated circuits, the one chip device. And several simple semiconductors add to drive system for a motor drive system simplistically operates as a conventional dc motor. Test results confirmed the feasibility of the proposed motor drive system design.

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EMI Analysis of Soft Switching Inverter on High Power AC Motor Drive (대전력 교류전동기 구동용 소프트 스위칭 인버터의 EMI 해석)

  • 권순걸
    • Journal of the Institute of Convergence Signal Processing
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    • 제3권3호
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    • pp.76-81
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    • 2002
  • In high power motor drive system, the hard-switching topology produces severs switching losses and EMI noises. Also the inverter switching frequency is thus limited because of excessive loss and thermal handling problem. The primary purpose of the proposed works on the induction motor drive system is to develop an advanced soft-switching inverter topology that is most suitable for high power induction motor drive applications. To make the optimal selection EMI comparison of the switching losses presented. To verify the proposed design procedure, detailed simulation analysis with theoretical and experimental approaches have been done using laboratory prototype.

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