Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
권호 표지

Speed Sensorless Torque Monitoring of Induction Spindle Motor using Graphical Programming

그래픽 프로그래밍 기법을 이용한 주축용 유도전동기의 속도 센서리스 토크감시

  • 박진우 (서울시립대학교 기계정보공학과 대학원) ;
  • 권원태 (서울시립대학교 기계정보공학과)
  • Published : 2002.10.01
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Abstract

To monitor the torque of an induction motor using current, rotating speed has been measured and used to calculate the slip angular velocity. Additional sensor, however, can cause extra expense and trouble. In this paper, a new algorithm is proposed to monitor the torque of vector controlled induction motor without any speed measuring sensor. Only stator current is measured to estimate the magnetizing current which is used to calculate flux linkage, rotor velocity and motor torque. Graphical programming is used to implement the suggested algorithm and to monitor the torque of an induction motor in real time. To solve the fluctuation problem of estimated torque caused from instantly varying rotating speed of an induction motor, the rotating speed is reconstructed based on the measured current signals. From several experiments, the proposed method shows a good estimation of the motor torque under the normal rotational speed.

Keywords

References

  1. K. Rajashekara, A. Kawamura and K. Matsure, 'Sensorless Control of AC Motor Drives,' IEEE PRESS, pp. 1-19, 1996
  2. Thomas A. Lipo, 'Motion Control with Induction Motors,' Proceedings of The IEEE, Vol. 82, No. 8, August 1994 https://doi.org/10.1109/5.301685
  3. T. Kanmachi and I. Takahashi, 'Sensorless Speed Control of An Induction Motor with No Influence of Secondary Resistance Variation,' IEEE IAS Ann. Mtg, pp. 408-413, 1993 https://doi.org/10.1109/IAS.1993.298956
  4. J.HU and B.WU, 'New Integration Algorithms for Estimating Motor Flux Over a Wide Speed Range,' IEEE PESC'97, pp. 1075-1081, 1997 https://doi.org/10.1109/PESC.1997.616875
  5. Blaschke, 'The Principle of Field Orientation as Applied to the New Transvector Closed Loop Control System for Rotation Field Machines,' Siemens Reviews, Vol. 34, pp. 217-220, 1972
  6. Paul C. Krause, 'Analysis of Electric Machinery,' McGraw-Hill, 1986
  7. Peter Vas, 'Sensorless vector and direct torque control,' Oxford University Press, 1998
  8. 정동화, '유도전동기의 고성능제어를 위한 속도센서리스 벡터제어,' 대한전자학회 93년도 전자공학논문지-B v30-B, pp. 1085-1094, 1993
  9. 설승기, 권봉현, 강준구, '유도전동기의 속도 추정 벡터제어에 관한 연구,' 대한전기학회논문지, Vol. 39, pp. 928-933, 1990
  10. 설승기, '유도전동기 단자전압, 전류에 의한 속도계산 및 속도제어에 관한 연구,' 대한전기학회논문지, Vol. 35, pp. 445-451, 1986
  11. 장현오, 'LabVIEW 그래픽프로그램의 이해,' (주)ADC 씨스템, 서울, 1998
  12. National Instrument, 'Data Acquisition Basics Manual, Function Reference,' 2000
  13. 이인환, 권원태, 'Graphic-programming 을 이용한 주축용 유도전동기의 토크감시 시스템 개발,' 한국정밀공학회논문집, 제 18 권, 제 10 호, pp. 184-193, 2001