• Title/Summary/Keyword: SPMSM Control

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Speed and Position Sensorless Control of SPMSM with Adaptive Observer (적응 관측기에 의한 SPMSM의 속도 및 위치 센서리스 제어)

  • Lee, Hong-Gyun;Lee, Jung-Chul;Cha, Young-Doo;Chung, Dong-Hwa
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.54 no.1
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    • pp.1-7
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    • 2005
  • This paper is proposed the speed and position sensorless control of surface permanent magnet synchronous motor(SPMSM) with adaptive fuzzy and observer. A adaptive fuzzy controller is applied for speed control of SPMSM drive. A adaptive state observer is used for the mechanical state estimation of the motor. The observer was developed based on nonlinear model of SPMSM, that employs a d - q rotating reference frame attached to the rotor. A adaptive observer is implemented to compute the speed and position feedback signal. The validity of the proposed sensorless scheme is confirmed by various response characteristics.

Maximum Torque Operating Strategy based on Stator Flux Analysis for Direct Torque and Flux Control of a SPMSM (고정자 자속의 해석을 통한 직접 토크 제어 SPMSM의 최대 토크 운전)

  • Kim, Sang-Hoon
    • The Transactions of the Korean Institute of Power Electronics
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    • v.19 no.5
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    • pp.463-469
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    • 2014
  • This paper proposes a maximum torque operation strategy for the direct torque control of a surface-mounted permanent-magnet synchronous motor (SPMSM). The proposed method analyzes the available operation region of the stator flux of the SPMSM under voltage and current constraints. Based on this analysis, the optimal stator flux trajectory that yields the maximum torque is obtained across the entire operation region, including constant torque and constant power regions. The proposed strategy is also applicable in the flux-weakening region II operation of the SPMSM, which has no speed limit. The validity of the proposed method is verified through experiments conducted on an 800 W SPMSM drive system.

A Speed Sensorless SPMSM Position Control System with Direct Torque Control (직접 토크제어에 의한 속도검출기 없는 SPMSM의 속도 제어 시스템)

  • Kim, Min-Ho;Kim, Nam-Hun;Kim, Dong-Hee;Kim, Min-Huei
    • Proceedings of the KIEE Conference
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    • 2001.04a
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    • pp.277-280
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    • 2001
  • This paper presents a speed sensorless implementation of digital speed control system of Surface Permanent-Magnet Synchronous Motor(SPMSM) drives with a direct torque control(DTC). The system presented are stator flux and torque observer of stator flux feedback control model that inputs are current and voltage sensing of motor terminal with estimated rotor angle for a low speed operating area, two hysteresis band controllers, an optimal switching look-up table, rotor speed estimator, and IGBT voltage source inverter by using fully integrated control software. The developed speed sensorless control system are shown a good motion control response characteristic results and high performance features using 1.0Kw purposed servo drive SPMSM.

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A Sensorless Position Control System of SPMSM with Direct Torque Control (직접 토크제어에 의한 센서리스 SPMSM의 위치 제어 시스템)

  • Kim Min-Ho;Kim Nam-Hun;Kim Dong-Hee;Kim Min-Huei;Hwang Don-Ha
    • Proceedings of the KIPE Conference
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    • 2001.07a
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    • pp.397-400
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    • 2001
  • This paper presents a implementation of digital sensorless position control system of surface permanent-magnet synchronous motor (SPMSM) drive with a direct torque control (DTC). The system are stator flux and torque observer of stator flux feedback control model that inputs are current and voltage sensing of motor terminal with estimated rotor angle for a low speed operating area, two hysteresis band controllers, an optimal switching look-up table, rotor speed estimator, and IGBT voltage source inverter by using fully integrated control software. The developed sensorless control system are shown a good motion control response characteristic results and high performance features using 1.0 (kW) purposed servo drive SPMSM.

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Sensorless control of a SPMSM for driving cooling fans (냉각 팬 구동을 위한 SPMSM의 센서리스 제어)

  • Kim, Sang-Hoon;Kim, Ji-Min
    • Journal of Industrial Technology
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    • v.34
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    • pp.15-20
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    • 2014
  • Recently, PMSMs(Permanent Magnet Synchronous Motors) have become increasingly popular in various high-performance motor drive applications. However, the high-performance drive of PMSMs needs a position sensor such as a resolver, which increases not only the price of the system but also reduces the system reliability. This paper is on the implementation of sensorless control of a SPMSM, which drives a fan for cooling in appliances. In this paper, the rotor position for high-performance drive of a SPMSM is derived from back electromotive force (EMF) information proportional to the rotor speed. Also, the initial rotor position information for start-up is estimated from a saturation phenomenon of inductance. The validity of the proposed sensorless drives was confirmed by the experiment on the SPMSM drive systems for cooling fans of refrigerators and laptop computers.

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Hybrid Intelligent Control for Speed Sensorless of SPMSM Drive (SPMSM 드라이브의 속도 센서리스를 위한 하이브리드 지능제어)

  • Lee Jung-Chul;Lee Hong-Gyun;Chung Dong-Hwa
    • The Transactions of the Korean Institute of Electrical Engineers D
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    • v.53 no.10
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    • pp.690-696
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    • 2004
  • This paper is proposed a hybrid intelligent controller based on the vector controlled surface permanent magnet synchronous motor(SPMSM) drive system. The hybrid combination of neural network and fuzzy control will produce a powerful representation flexibility and numerical processing capability. Also, this paper is proposed speed control of SPMSM using neural network-fuzzy(NNF) control and speed estimation using artificial neural network(ANN) Controller. The back propagation neural network technique is used to provide a real time adaptive estimation of the motor speed. The error between the desired state variable and the actual one is back-propagated to adjust the rotor speed, so that the actual state variable will coincide with the desired one. The back propagation mechanism is easy to derive and the estimated speed tracks precisely the actual motor speed. This paper is proposed the theoretical analysis as well as the simulation results to verify the effectiveness of the new method.

Speed Sensorless Control of SPMSM with Adaptive Fuzzy and Observer (적응 퍼지 관측기를 이용한 SPMSM 드라이브의 속도 센서리스제어)

  • Lee, Young-Sil;Lee, Jung-Chul;Lee, Hong-Gyun;Nam, Su-Myeong;Chung, Dong-Hwa
    • Proceedings of the KIEE Conference
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    • 2004.04a
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    • pp.173-176
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    • 2004
  • This paper is proposed to position and speed control of interior permanent magnet synchronous motor(SPMSM) drive without mechanical sensor. A adaptive fuzzy controller is applied for speed control of SPMSM drive A adaptive state observer is used for the mechanical state estimation of the motor. The observer was developed based on nonlinear model of SPMSM, that employs a d-q rotating reference frame attached to the rotor. A adaptive observer is implemented to compute the speed and position feedback signal. The validity of the proposed sensorless scheme is confirmed by various response characteristics.

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HAI Control for Speed Control of SPMSM Drive (SPMSM 드라이브의 속도제어를 위한 HAI 제어)

  • Lee, Hong-Gyun;Lee, Jung-Chul;Chung, Dong-Hwa
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.54 no.1
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    • pp.8-14
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    • 2005
  • This paper is proposed hybrid artificial intelligent(HAI) controller for speed control of surface permanent magnet synchronous motor(SPMSM) drive. The design of this algorithm based on HAI controller that is implemented using fuzzy control and neural network. This controller uses fuzzy rule as training patterns of a neural network. Also, this controller uses the back-propagation method to adjust the weights between the neurons of neural network in order to minimize the error between the command output and actual output. A model reference adaptive scheme is proposed in which the adaptation mechanism is executed by fuzzy logic based on the error and change of error measured between the motor speed and output of a reference model. The control performance of the HAI controller is evaluated by analysis for various operating conditions. The results of analysis prove that the proposed control system has strong high performance and robustness to parameter variation, and steady-state accuracy and transient response.

A Study on the Torque Ripple Reduction of Low Voltage High Current SPMSM (저전압 대전류 SPMSM 토크리플 저감 제어)

  • Lee, Geun-Ho;Hong, Jeong-Pyo
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.58 no.12
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    • pp.2391-2395
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    • 2009
  • Active control schemes which modify the excitation to correct for any of the nonideal characteristics of the SPMSM is described. Especially, because of design limitations(size and cost) in automobile, the back-EMF of SPMSM can't be perfectly designed with sinusoidal wave and iron core of stator is saturated so that torque ripple is unavoidable. An active cancellation method of the pulsating torque components which would otherwise be generated using the classic sinusoidal current excitation is illustrated.

Development of Speed Control System for SPMSM with Direct Torque Control (직접토크 제어에 의한 SPMSM 속도제어시스템 개발)

  • Kim, Dong-Hee;Lim, Tae-Hoon;Baik, Won-Sik;Kim, Min-Huei
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.19 no.3
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    • pp.66-74
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    • 2005
  • This paper presents an implementation of digital servo speed control system of SPMSM(Surface-mounted Permanent Magnet Synchronous Motor) for industrial application with Direct Torque Control(DTC) using TMS320F2812 DSP. Although, the vector control scheme is adapted in many industrial servo system, but the DSP calculation ratio is increased by reference frame transformation and SVPWM of vector control. Therefore, this paper investigate the possibility of DTC scheme for industrial servo drive system instead of vector control scheme. DSP calculation ratio is compared between vector control and DTC algorithm in addition to the characteristic of speed control response. The suggested SPMSM control system shows the possibility of DTC scheme for industrial servo motor drive system instead of a vector control algorithm.