Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
권호 표지
DOI QR코드

DOI QR Code

Fault-tolerant converter and fault-tolerant methods for switched reluctance generators

  • Han, Guoqiang (China University of Mining and Technology) ;
  • Liu, Wanli (China University of Mining and Technology) ;
  • Lu, Zhe (China University of Mining and Technology) ;
  • Wu, Menglin (China University of Mining and Technology) ;
  • Lin, Hang (China University of Mining and Technology)
  • Received : 2022.03.23
  • Accepted : 2022.06.20
  • Published : 2022.10.20
⟨ Previous Next ⟩

Abstract

Aiming at improving the fault-tolerant performance of switched reluctance generators, a new power converter with fault-tolerance capability is proposed in this paper. The structure of the converter is simple and there is only one transistor in each of the working modes, which makes fault diagnosis easier. To obtain more fault information, an improved current measurement method is proposed. The phase current is obtained by solving current equations obtained by current sensors and rotor positions. Open-circuit and short-circuit faults can be determined by comparing the consistency of the current slope and gate signal. Fault locations can be determined by comparing the relationships among the magnitude of the bus current, the phase current, and the corresponding thresholds. Open-circuit transistors can be replaced by fault-tolerant strategy, which returns the power converter to normal and maintains the stable operation of the system. Simulations and experiments show that the open-circuit and short-circuit faults of transistors can be diagnosed by the proposed strategy.

Keywords

Acknowledgement

This work was supported by the National Natural Science Foundation of China under Grant 52007189.

References

  1. Chung, G.-B., Choi, J.: Application of fuzzy PI control algorithm as stator power controller of double-fed induction machine in wind power generation systems. J. Power Electron. 9(1), 109-116 (2009)
  2. Zhang, Q.J., Hu, W.B., Liu, Y.C., Zhang, H.W., Wang, H.L.: A novel smooth switching control strategy for multiple photovoltaic converters in DC microgrids. J. Power Electron. 22(2), 163-175 (2022) https://doi.org/10.1007/s43236-021-00357-y
  3. Hu, Y.H., Gan, C., Cao, W.P., Li, W.H., Finney, S.-J.: Centraltapped node linked modular fault-tolerance topology for SRM applications. IEEE Trans. Power Electron. 31(2), 1541-1554 (2016) https://doi.org/10.1109/TPEL.2015.2414664
  4. Han, G.Q., Chen, H., Shi, X.Q., Wang, Y.: Phase current reconstruction strategy for switched reluctance machines with faulttolerant capability. IET Electr. Power Appl. 11(3), 399-411 (2017) https://doi.org/10.1049/iet-epa.2016.0567
  5. Feng, L.Y., Sun, X.D., Tian, X., Diao, K.K.: Direct torque control with variable flux for an srm based on hybrid optimization algorithm. IEEE Trans. Power Electron. 37(6), 6688-6697 (2022) https://doi.org/10.1109/TPEL.2022.3145873
  6. Cai, J., Deng, Z.Q., Hu, R.G.: Position signal faults diagnosis and control for switched reluctance motor. IEEE Trans. Magn. 50(9), 1-11 (2014)
  7. Ali, N., Gao, Q.: Simple current sensor fault-tolerant control strategy for switched reluctance motors in high-reliability applications. IET Electron. Power Appl. 15(6), 963-977 (2021) https://doi.org/10.1049/elp2.12058
  8. Barros, T.-A.-D.-S., Neto, P.-J., Filho, P.-S.-N., Moreira, A.-B., Ruppert, E.-A.: An approach for switched reluctance generator in a wind generation system with a wide range of operation speed. IEEE Trans. Power Electron. 32(11), 8277-8292 (2017) https://doi.org/10.1109/TPEL.2017.2697822
  9. Rahmanian, E., Akbari, H., Sheisi, H.: Maximum power point tracking in grid connected wind plant by using intelligent controller and switched reluctance generator. IEEE Trans. Sustain. Energy 8(3), 1313-1320 (2017) https://doi.org/10.1109/TSTE.2017.2678679
  10. Wang, Q., Chen, H., Zhao, R.M.: Double-loop control strategy for SRGs. IET Electr. Power Appl. 11(1), 29-40 (2017) https://doi.org/10.1049/iet-epa.2016.0101
  11. Gopalakrishnan, S., Omekanda, A.-M., Lequesne, B.: Classification and remediation of electrical faults in the switched reluctance drive. IEEE Trans. Ind. Appl. 42(2), 479-486 (2006) https://doi.org/10.1109/TIA.2006.870044
  12. Ro, H.-S., Kim, D.-H., Jeong, H.-G., Lee, K.-B.: Tolerant control for power transistor faults in switched reluctance motor drives. IEEE Trans. Ind. Appl. 51(4), 3187-3197 (2015) https://doi.org/10.1109/TIA.2015.2411662
  13. Sun, Q.G., Wu, J.H., Gan, C., Hu, Y.H., Jin, N., Guo, J.F.: A new phase current reconstruction scheme for four-phase SRM drives using improved converter topology without voltage penalty. IEEE Trans. Ind. Electron. 65(1), 133-144 (2018) https://doi.org/10.1109/TIE.2017.2721898
  14. Pollock, C., Williams, B.-W.: Reluctance motors with the minimum number of switches. IEE Proc. B Elect. Power Appl. 137(6), 373-384 (1990) https://doi.org/10.1049/ip-b.1990.0046
  15. Faiz, J., Salehi, M.-R., Hosseini, S.-H.: A new power electronic converter for switched reluctance motor. Eur. Trans. Electron. Power 13(5), 301-305 (2003) https://doi.org/10.1002/etep.4450130505
  16. Chen, H., Han, G.Q., Shi, X.Q., Dong, J.L.: Phase current digital analysis of power converter for freewheeling diode fault diagnosis on switched reluctance motor drive. IEEE Trans. Ind. Electron. 66(8), 6613-6624 (2019) https://doi.org/10.1109/TIE.2018.2889628
  17. Pires, V.-F., Amaral, T.-G., Cordeiro, A., Foito, D., Martins, J.-F.: Fault-tolerant SRM drive with a diagnosis method based on the entropy feature approach. Appl. Sci. 10(10), 3516-3536 (2020) https://doi.org/10.3390/app10103516
  18. Hu, Y.H., Gan, C., Cao, W.P., Zhang, J.F., Li, W.H., Finney, S.-J.: Flexible fault-tolerant topology for switched reluctance motor drives. IEEE Trans. Power Electron. 31(6), 4654-4668 (2016) https://doi.org/10.1109/TPEL.2015.2477165
  19. Lee, J.-S., Lee, K.-B.: Tolerance control for inner open-switch faults of a T-type three-level rectifier. J Power Electron. 14(6), 1157-1165 (2014) https://doi.org/10.6113/JPE.2014.14.6.1157
  20. Gan, C., Wu, J.H., Yang, S.Y., Hu, Y.H., Cao, W.P., Si, J.K.: Fault diagnosis scheme for open-circuit faults in switched reluctance motor drives using fast Fourier transform algorithm with bus current detection. IET Power Electron. 9(1), 20-30 (2016) https://doi.org/10.1049/iet-pel.2014.0945
  21. Gameiro, N.-S., Cardoso, A.-J.-M.: A new method for power converter fault diagnosis in SRM drives. IEEE Trans. Ind. Appl. 48(2), 653-662 (2012) https://doi.org/10.1109/TIA.2011.2180876
  22. Chen, H., Lu, S.-L.: Fault diagnosis digital method for power transistors in power converters of switched reluctance motors. IEEE Trans. Ind. Electron. 60(2), 749-763 (2013) https://doi.org/10.1109/TIE.2012.2207661
  23. Marques, J.-F., Estima, J.-O., Gameiro, N.-S., Cardoso, A.-J.-M.: A new diagnostic technique for real-time diagnosis of power converter faults in switched reluctance motor drives. IEEE Trans. Ind. Appl. 50(3), 1854-1860 (2014) https://doi.org/10.1109/TIA.2013.2279898