Advertisement

Sensorless Speed Control and High-Performance Fault Diagnosis in VSI-Fed PMSM Motor Drive Under Open-Phase Fault: Analysis and Experiments

  • Mongi MoujahedEmail author
  • Hechmi Benazza
  • Mohamed Jemli
  • Mohamed Boussak
Research Paper

Abstract

This paper aims to provide a high-performance sensorless fault-tolerant direct torque control of permanent magnet synchronous motor based on nonlinear position and speed observer. The nonlinear observer is based on a trigonometric function to estimate the rotor position, and a proportional–integral controller is used to estimate the speed from estimated position. A faulty leg (open phase) in the PWM VSI changes the corresponding terminal voltage and introduces the voltage distortions to each phase voltage. The ordinary two-level inverter is composed of three legs. In the proposed fault-tolerant inverter, a redundant leg is added that replaces the faulted leg. The detection of the open-phase fault is based only on the current signals and the maximum threshold they exceed that in case of fault.

Keywords

Permanent magnet synchronous motor (PMSM) Nonlinear observer PWM VSI FTDTC Sensorless control Position and speed estimation 

List of symbols

d, q

Two-axis synchronous frame quantities

α, β

Two-axis stationary frame quantities

\(V_{d} , V_{q}\)

d- and q-axis components of stator voltage

\(i_{d} ,i_{q}\)

d- and q-axis stator current on rotating frame

p

Number of pole pairs

\(R_{\text{s}}\)

Armature winding resistance

\(L_{d} ,L_{q}\)

d- and q-axis stator self-inductances

\(K_{\text{e}}\)

EMF constant

\(K_{\text{t}}\)

Torque constant

\(T_{\text{e}} ,T_{\text{l}}\)

Electromagnetic and load torque

\(\hat{\varPhi }_{\text{m}}\)

Peak permanent magnet flux linkage

J, f

Rotor inertia and viscous friction

\(\theta_{\text{r}} ,\omega_{\text{r}}\)

Rotor position and angular velocity at electrical

References

  1. Ahong L, Rahman F (1997) Analysis of direct torque control in permanent magnet synchronous motor drives. IEEE Trans Power Electron 12(3):528–536CrossRefGoogle Scholar
  2. Boussak M (2005) Implementation and experimental investigation of sensorless speed control with initial rotor position estimation for interior permanent magnet synchronous motor drive. IEEE Trans Power Electron 6:1413–1421CrossRefGoogle Scholar
  3. Chen Z, Tomita M, Doki S, Okuma S (2003) An extended electromotive force model for sensorless control of interior permanent-magnet synchronous motors. IEEE Trans Ind Electron 50(2):288–295CrossRefGoogle Scholar
  4. Choi C, Lee W (2012) Design and evaluation of voltage measurement-based sectoral diagnosis method for inverter open switch faults of permanent magnet synchronous motor drives. IET Electron Power 6:526–532CrossRefGoogle Scholar
  5. Khlaif A, Benjdedia M, Boussak M, Chaari A (2012a) Nonlinear observer for sensorless speed control of IPMSM drive with stator resistance adaptation. In: 2nd International conference on communications, computing and control applications (CCCA), 6–8 Dec 2012Google Scholar
  6. Khlaif A, Benjdedia M, Boussak M, Gossa M (2012b) A nonlinear observer for high performance sensorless control of IPMSM drive. IEEE Trans Power Electron 27(6):3028–3040CrossRefGoogle Scholar
  7. Lee J, Hong J, Nam K, Ortega R, Praly L, Astolfi A (2010) Sensorless control of surface-mount permanent-magnet synchronous motors based on a nonlinear observer. IEEE Trans Power Electron 25(2):290–297CrossRefGoogle Scholar
  8. Moujahed M, Azza HB, Jemli M, Boussak M (2016a) Fault detection and fault-tolerant control of power converter fed PMSM. Electr Eng 98(2):121–131CrossRefGoogle Scholar
  9. Moujahed M, Azza HB, Jemli M, Boussak M (2016b) Implementation of improved sliding mode observer and fault tolerant control for a PMSM Drive. J Circuits Syst Comput 26(2):1750032Google Scholar
  10. Moujahed M, Azza HB, Jemli M, Boussak M (2016c) Fault detection and fault tolerant control of power converter fed PMSM. Electron Electr Eng 98(2):121–131Google Scholar
  11. Moujahed M, Azza HB, Jemli M, Boussak M (2017) Extended Kalman filter for sensorless fault tolerant vector control of PMSM with stator resistance estimation. Int J Electr Eng Inf 9(1):207–221Google Scholar
  12. Ortega R, Praly L, Astolfi A, Lee J, Nam K (2011) Estimation of rotor position and speed of permanent magnet synchronous motors with guaranteed stability. IEEE Trans Control Syst Technol 19(3):601–614CrossRefGoogle Scholar
  13. Wallmark O, Harnefors L, Carlson O (2007) Control algorithms for a fault-tolerant PMSM drive. IEEE Trans Ind Electron 54(4):1973–1980CrossRefGoogle Scholar

Copyright information

© Shiraz University 2018

Authors and Affiliations

  • Mongi Moujahed
    • 1
    Email author
  • Hechmi Benazza
    • 1
  • Mohamed Jemli
    • 1
  • Mohamed Boussak
    • 2
    • 3
  1. 1.Laboratoire d’Ingénieries des Systèmes Industriels et des Energies Renouvelables (LSIER)Université de Tunis, Ecole Nationale Supérieure d’Ingénieurs de Tunis (ENSIT)TunisTunisia
  2. 2.Centrale MarseilleMarseille Cedex 20France
  3. 3.Laboratoire des Sciences de l’Information et des Systèmes (LSIS) – UMR CNRS 6168MarseilleFrance

Personalised recommendations