Indirect field-oriented torque control of induction motor considering magnetic saturation effect: error analysis

Lu Liu; Xudong Du; Shuiwen Shen

Indirect field-oriented torque control of induction motor considering magnetic saturation effect: error analysis

View Fulltext

Author(s): Lu Liu ¹ ; Xudong Du ¹ ; Shuiwen Shen ¹
- Affiliations: 1: College of Electronic and Information Engineering, Tongji University, Shanghai, People's Republic of China
Source: Volume 11, Issue 6, July 2017, p. 1105 – 1113
DOI: 10.1049/iet-epa.2016.0680 , Print ISSN 1751-8660, Online ISSN 1751-8679

Received 13/10/2016, Accepted 02/03/2017, Revised 16/02/2017, Published 01/07/2017

This study investigates the causes and calculation formulas of steady-state torque and rotor flux errors, when an induction motor considering magnetic saturation effect is controlled by standard indirect field-oriented control algorithm. First, two reasons that causing the errors are analysed. One is mutual inductance mismatch between controller and motor. Another is rotor flux orientation deviation, resulting in the failure of decoupling of the magnetising and torque-producing currents. Then, the equations for calculating steady-state errors (orientation error, rotor flux error and torque error) are derived. The errors are related to reference torque, reference rotor flux and mutual inductance deviation. In addition, the characteristic maps of errors with respect to reference values are drawn. The accuracy and correctness of derived equations are validated by simulation and experimental results.

References

1. 1)
  - 10. Lipo, T.A., Consoli, A.: ‘Modeling and simulation of induction motors with saturable leakage reactances’, IEEE Trans. Ind. Appl., 1984, 20, (1), pp. 180–189 (doi: 10.1109/TIA.1984.4504392).
2. 2)
  - 4. Sung, W., Shin, J., Jeong, Y.s.: ‘Energy-efficient and robust control for high-performance induction motor drive with an application in electric vehicles’, IEEE Trans. Veh. Technol., 2012, 61, (8), pp. 3394–3405 (doi: 10.1109/TVT.2012.2213283).
3. 3)
  - 12. Donescu, V., Charette, A., Yao, Z., et al: ‘Modeling and simulation of saturated induction motors in phase quantities’, IEEE Trans. Energy Convers., 1999, 14, (3), pp. 386–393 (doi: 10.1109/60.790887).
4. 4)
  - 5. Dolinar, D., Ljusev, P., Stumberger, G., et al: ‘Magnetic saturation impact on the steady-state operation of a controlled induction motor drive in rotor field orientation’, COMPEL, 2010, 29, (3), pp. 754–772 (doi: 10.1108/03321641011028297).
5. 5)
  - 9. Levi, E.: ‘A unified approach to main flux saturation modeling in d − q axis models of induction machines’, IEEE Trans. Energy Convers., 1995, 10, (3), pp. 455–461 (doi: 10.1109/60.464868).
6. 6)
  - 2. Wasynczuk, O., Sudhoff, S.D., Corzine, K.A., et al: ‘A maximum torque per ampere control strategy for induction motor drives’, IEEE Trans. Energy Convers., 1998, 13, (2), pp. 163–169 (doi: 10.1109/60.678980).
7. 7)
  - 14. Ranta, M., Hinkkanen, M.: ‘Online identification of parameters defining the saturation characteristics of induction machines’, IEEE Trans. Ind. Appl., 2013, 49, (5), pp. 2136–2145 (doi: 10.1109/TIA.2013.2261793).
8. 8)
  - 1. Levi, E., Wang, M.: ‘Online identification of the mutual inductance for vector controlled induction motor drives’, IEEE Trans. Energy Convers., 2003, 18, (2), pp. 299–305 (doi: 10.1109/TEC.2003.811720).
9. 9)
  - 8. Vas, P., Alakula, M.: ‘Field-oriented control of saturated induction machines’, IEEE Trans. Energy Convers., 1990, 5, (1), pp. 218–224 (doi: 10.1109/60.50834).
10. 10)
  - 6. Bodson, M., Kiselychnyk, O., Wang, J.: ‘Comparison of two magnetic saturation models of induction machines’. IEEE Int. Electric Machines Drives Conf. (IEMDC), 2013, pp. 938–943.
11. 11)
  - 3. Bazzi, A.M., Buyukdegirmenci, V.T., Krein, P.T.: ‘System-level power loss sensitivity to various control variables in vector-controlled induction motor drives’, IEEE Trans. Ind. Appl., 2013, 49, (3), pp. 1367–1373 (doi: 10.1109/TIA.2013.2252320).
12. 12)
  - 13. Levi, E., Sokola, M., Vukosavic, S.N.: ‘A method for magnetizing curve identification in rotor flux oriented induction machines’, IEEE Trans. Energy Convers., 2000, 15, pp. 157–162 (doi: 10.1109/60.866993).
13. 13)
  - 7. Brown, J.E., Kovacs, K.P., Vas, P.: ‘A method of including the effects of main flux path saturation in the generalized equations of A.C. machines’, IEEE Trans. Power Apparatus Syst., 1983, 102, (1), pp. 96–103 (doi: 10.1109/TPAS.1983.318003).
14. 14)
  - 11. Melkebeek, J.A.A., Novotny, D.W.: ‘The influence of saturation on induction machine drive dynamics’, IEEE Trans. Ind. Appl., 1983, 19, (5), pp. 671–681 (doi: 10.1109/TIA.1983.4504275).

Login

Not registered yet?

Share

Tools

Login to add to favourites

Key

Indirect field-oriented torque control of induction motor considering magnetic saturation effect: error analysis

References

Related content