The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
권호 표지

Direct Instantaneous Torque Control of SRM using 4-level Converter

4-레벨 콘버터를 이용한 SRM의 순시 토오크 제어 기법

  • 이동희 (경성대 전기전자메카트로닉스 공학부) ;
  • 이상훈 (경성대 공학기술연구소) ;
  • 안진우 (경성대 전기전자메카트로닉스공학부)
  • Published : 2007.06.20
Download PDF
⟨ Previous Next ⟩

Abstract

This paper presents a direct instantaneous torque control (DITC) of Switched Reluctance Motor (SRM) with a novel 4-level converter to develop a uniform torque and to improve a dynamic performance. The DITC method can reduce a high torque ripple of SRM. Drive efficiency and dynamic performance with conventional drive are low due to a slow excitation current build-up. Since the 4-level converter can obtain an addition boosted voltage to have a fast excitation and demagnetization, it can Improve dynamic performance and efficiency easily. To apply the DITC technique to a 4-level converter, a novel control scheme is presented according to the operating modes. Additionally, selection of capacitances of boosted capacitor and efficiency improvement of 4-level converter are analyzed. At last, the validity of proposed method is verified by some computer simulations md comparative experiments.

본 논문에서는 토오크 맥동을 줄이고 동특성 및 효율을 개선하기 위해 새로운 4-레벨 콘버터 이용한 DITC SRM 구동방식을 제안하였다. 4-레벨 콘버터는 콘덴서의 전압을 이용하여 여자 및 감자 시 높은 전압을 인가하여 여자특성을 개선할 수 있는 장점을 가진다. 본 논문에서는 DITC의 동특성 개선을 위해 사용된 4-레벨 콘버터의 동작특성과 부스트 전압에 따른 효율 개선에 대해 해석하였다. 이를 통해 제안된 SRM을 위한 4-레벨 콘버터의 DITC 제어기법을 시뮬레이션과 실험을 통해 검증하였다.

Keywords

References

  1. J.W Ahn, 'Switched Reluctance Motor', Osung Media, pp.1-454,2004
  2. I. Husain and M. Eshani, 'Torque ripple minimization in switched reluctance motor drives by PWM current control,' in Proc. IEEE PESC'94, vol. 1, 1994, pp. 72–ﾄ 77
  3. P. G. Barrass and B. C. Mecrow 'Flux and torque control of switched reluctance machines' IEE Pro-Electr. Power Appl., Vol.145, No. 6 November 1998, pp. 519-529 https://doi.org/10.1049/ip-epa:19981926
  4. R. B. Inderka and R. W. De Doncker, 'High dynamic direct average torque control for switched reluctance drives,' in Conf. Rec. IEEE-IAS Annu. Meeting, vol. 3, Chicago, IL, 2001, pp.2111–2115
  5. Sayeed Mir, 'Energy efficient C-dump Converter for Switched Relucrance Motors', IEEE Transaction on Power Electronicsvol.12, No.5 pp.912-921.1997 https://doi.org/10.1109/63.623010
  6. Inderka, R.B., De Doncker, R.W., 'DITC-direct instantaneous torque control of switched reluctance drives', IEEE Transactions on Industry Application, vol. 39, NO. 4, pp.1046-1051 July, 2003 https://doi.org/10.1109/TIA.2003.814578
  7. Inderka, R.B., De Doncker, R.W., 'DITC-direct instantaneous torque control of switched reluctance drives', 37th IAS Annual Meeting. Conference Recordof the Volume 3, pp. 1605 - 1609, 2002. 10
  8. J.W Ahn et al; ' Five-Level Inverter for Optimal Excitaon of SRM Drive', Proceeding of IEEE/ISIE, vol 3, pp. 1401 - 1406, 2001. 06