Skip to main content
SpringerLink
Log in

RTC (reaction torque compensated) induction motor and its open-loop control

  • Letter
  • Published:
JMST Advances Aims and scope Submit manuscript

Abstract

Rapid change of the rotating speed of an induction motor causes large reaction torque or excessive vibration of the system base. This paper proposes a passive reaction torque compensated (RTC) induction motor considering the dynamic characteristic of open-loop speed control with a variable frequency drive. RTC mechanism converts the reaction torque into the dissipative inertial energy of the rotary stator and the potential energy of the torsion spring torque so that a part of the reaction torque or the spring torque is transmitted to the system base. First, dynamic equation and simulation model for the RTC induction motor are introduced and verified with experiments. The acceleration response of an induction motor with variable speed drive is approximated as first-order ordinary differential equation. Then, the RTC mechanism such as spring and additional inertia are designed considering derived acceleration response or torque profile. Then, an experimental set-up and its control system for the RTC induction motor are built. Finally, effectiveness of the RTC induction motor is verified comparing open-loop speed control of both RTC and conventional induction motor.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15

Similar content being viewed by others

Abbreviations

c m, c s, c b :

Damping of rotor, stator and system base

d 0 :

Initial deflection of tension spring at balance position

F :

Force caused by tension spring

i rq, i sq :

q-component of rotor and stator current

J m, J s, J b :

Inertia of rotor, stator and system base

K :

Stiffness of tension spring

k s, k b :

Stiffness of equivalent stator and system base springs

L 0 :

Undeformed length of tension spring

L m, L r :

Magnetizing and rotor inductance

p :

Number of poles

R :

Distance from center of motor to pin of attached spring

R r :

Rotor resistance

r :

Radius of the pins

T e, T L :

Motor and load torque

T ks :

Torque generated by spring between stator and base

T Trans :

Transmitted torque to the system base

γ m :

Rotor acceleration

η m, τ m :

Motor constants

λ rd :

d-component of rotor flux

θ m, θ s, θ b :

Rotary angle of rotor, stator, system base

ω :

Frequency

ω d, ω m :

Rotating flux and rotor speed

References

  1. E. Levi, Advances in converter control and innovative exploitation of additional degrees of freedom for multiphase machines. IEEE Trans. Industr. Electron 63(1), 433–448 (2016)

    Article  Google Scholar 

  2. I. Shin, J. Lee, J.Y. Lee, K. Jung, D. Kwon, B.D. Youn, H.S. Jang, J.-H. Choi, A framework for prognostics and health management applications toward smart manufacturing systems. Int J Precis Eng Manuf GT 5(4), 535–554 (2018)

    Article  Google Scholar 

  3. N. Grossi, Accurate and fast measurement of specific cutting force coefficients changing with spindle speed. Int J Precis Eng Manuf 18(8), 1173–1180 (2017)

    Article  Google Scholar 

  4. S.B. Shim, Y.J. Park, J.S. Nam, S.C. Kim, J.M. Kim, K.U. Kim, Development of a rotary clap mechanism for positive displacement rotary pumps: pump performance analysis. Int J Precis Eng Manuf 18(4), 575–585 (2017)

    Article  Google Scholar 

  5. C.T. Raj, S.P. Srivastava, Energy efficient control of three-phase induction motor—a review. Int J Comput Electr Eng 1(1), 1793–1898 (2009)

    Google Scholar 

  6. N. Lang, T. Cookson, E. Thorton, Adjustable speed drives applied to large AC induction motor and pump systems. in Proceedings of the 24th International Pump Users Symposium, (2018), pp. 75–80

  7. Y.H. You, H.-J. Ahn, A passive reaction force compensation (RFC) mechanism for a linear motor motion stage. Int J Precis Eng Manuf 15(5), 797–801 (2014)

    Article  Google Scholar 

  8. H.-J. Ahn, Eddy current damper type reaction force compensation mechanism for linear motor motion stage. Int J Precis Eng Manuf-Green Tech 3(1), 67–74 (2016)

    Article  Google Scholar 

  9. D.C. Nguyen, H.-J. Ahn, A fuzzy-P controller of an active reaction force compensation (RFC) mechanism for a linear motor motion stage. Int J Precis Eng Manuf 16(6), 1067–1074 (2015)

    Article  Google Scholar 

  10. D.C. Nguyen, H.-J. Ahn, Semi-active reaction force compensation for a linear motor motion stage. Int J Precis Eng Manuf 17(7), 857–862 (2016)

    Article  Google Scholar 

  11. K.D. Hoang, H.-J. Ahn, Both energy and cost-effective semi-active RFC (reaction force compensation) method for linear motor motion stage. Int J Precis Eng Manuf-Green Tech 4(1), 73–78 (2017)

    Article  Google Scholar 

  12. W.L. Carlson Jr. (1982) Torque compensated electric motor, US4373147A

  13. G. Atlas, Mechanical stabilization system with counter-rotating nested rotors, US5012170A (1990)

  14. S. Sugita, M. Tomizuka, Cancellation of unnatural reaction torque in variable-gear-ratio. J Dyn Sys Meas Cont 134(2), 021019(1–10) (2012)

    Google Scholar 

  15. C. Ishii, G. Komada, Estimation of reaction torque and compensation for elongation of wire for wire actuated robotic forces. in Proceedings of 19th World Congress The IFAC 47(3) (2014), pp 7233–7238

  16. A.G. Pratt, M.M. Williamson, Series elastic actuators. Proc IEEE/RSJ Int Conf Int Robots Syst 1995, 399–405 (1995)

    Google Scholar 

  17. J. Hurst, A. Rizzi, D. Hobbelen, Series elastic actuation: potential and pitfalls. in International conference on climbing and walking robots (2004)

  18. C. Lee, S. Kwak, J. Kwak, S. Oh, Generalization of series elastic actuator configurations and dynamic behavior comparison. Actuators 6(26), 1–26 (2017)

    Google Scholar 

  19. D.C. Nguyen, H.-J. Ahn, Dynamic analysis and iterative design of a passive reaction force compensation device for a linear motor motion stage. Int J Precis Eng Manuf 15(11), 2367–2373 (2014)

    Article  Google Scholar 

  20. N. Mohan, Advanced electric drives—analysis (Control Model Simulink, MNPERE, 2001)

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Software Convergence, Graduate School, Soongsil University, Seoul, South Korea

    Manh-Hai Hoang

  2. School of Mechanical Engineering, Soongsil University, Seoul, South Korea

    Hyeong-Joon Ahn

Authors
  1. Manh-Hai Hoang
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Hyeong-Joon Ahn
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Hyeong-Joon Ahn.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Hoang, MH., Ahn, HJ. RTC (reaction torque compensated) induction motor and its open-loop control. JMST Adv. 1, 23–30 (2019). https://doi.org/10.1007/s42791-019-0017-x

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s42791-019-0017-x

Keywords

Search

Navigation