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Analysis and Compensation of Current Measurement Errors in a Doubly Fed Induction Generator 원문보기

Journal of electrical engineering & technology, v.9 no.2, 2014년, pp.532 - 540  

Son, Yung-Deug (Dept. of Electrical Engineering, Pusan National University) ,  Im, Won-Sang (Dept. of Electrical Engineering, Pusan National University) ,  Park, Han-Seok (Dept. of Electrical Engineering, Pukyong National University) ,  Kim, Jang-Mok (Dept. of Electrical Engineering, Pusan National University)

Abstract ▼ AI-Helper 아이콘AI-Helper

It is necessary to measure the current of rotor for controlling the active and reactive power generated by the stator side of the doubly fed induction generator (DFIG) system. There are offset and scaling errors in the current measurement. The offset and scaling errors cause one and two times curren...

주제어

#DFIG   #Ripple errors   #Current sensor error   #Offset   #Scaling   #Synchronous d-axis rotor current  

AI 본문요약
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제안 방법

  • 2 shows the measurement path of the rotor currents for DFIG control. Because of the non-linearity of the hall sensors, the thermal drift of the analog elements, quantization error of the A/D converters, and unbalance of each element, the errors are generated from current measurement path and inevitable even if the control system is well designed and constructed.
  • This paper proposed a compensation method to solve the offset and scaling problem by the measurement errors of the current sensors in a DFIG. The principal feature of the proposed method is using the synchronous d-axis current of the rotor as an input signal of the compensator. Therefore, the proposed method has the several attractive features: robustness with regard to the variation of the machine variables, application to the steady and transient states, easy implementation.
  • This paper analyzes the error components of the offset and the scaling on the basis of the synchronous reference frame of the DFIG, and proposes a compensation method to reduce the effect of the errors. The proposed method adopts the synchronous d-axis current of the rotor as the input signal for compensation due to the several advantages. This method can be simply implemented by calculating the several integral and subtracting operations.
  • The principal feature of the proposed method is using the synchronous d-axis current of the rotor as an input signal of the compensator. Therefore, the proposed method has the several attractive features: robustness with regard to the variation of the machine variables, application to the steady and transient states, easy implementation. The feasibility and effectiveness of the proposed compensating method were verified through experimentation.
  • This paper analyzes the error components of the offset and the scaling on the basis of the synchronous reference frame of the DFIG, and proposes a compensation method to reduce the effect of the errors. The proposed method adopts the synchronous d-axis current of the rotor as the input signal for compensation due to the several advantages.
  • This paper proposed a compensation method to solve the offset and scaling problem by the measurement errors of the current sensors in a DFIG. The principal feature of the proposed method is using the synchronous d-axis current of the rotor as an input signal of the compensator.
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참고문헌 (20)

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    상세보기 crossref

  2. S.Muller, M.Deicke, and R. W. De Doncker, "Doubly fed inductioin generator systems for wind turbines," IEEE Industry Applications Magazine, Vol. 8, No. 3, pp. 26-33, 2002. 

  3. Kiani. M, and W.J. Lee, "Effects of Voltage Unbalance and System harmonics on the Performance of Doubly Fed Induction Wind Generators," Industry Application Society Annual Meeting, pp. 1-7, Oct. 2008. 

  4. Young-Do Choy, Byung-Moon Han,Jun-Young Lee and Gilsoo Jang, "Real-Time Hardware Simulator for Grid-Tied PMSG Wind Power System," Journal of Electrical Engineering & Technology, Vol. 6, No. 3, pp. 375-383, 2011 

    원문보기 상세보기 crossref

  5. M. Yamamoto and O. Motoyoshi, "Active and Reactive Power Control for Doubly-Fed Wound Rotor Induction Generator," IEEE Trans. Power Electronics, Vol. 6, No 4, pp. 624-629 Oct 1991. 

    상세보기 crossref

  6. R. Pena, J.C. Clare and G.M. Asher, "A doubly-fed induction generator using two back-to-back PWM converters and its application to variable speed wind energy system," IEE Proc. Vol. 143, No. 3, pp. 231-241, May, 1996. 

    상세보기 crossref

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    상세보기 crossref

  9. Gwang-Seob Kim, Kyo-Beum Lee, Dong-Choon Lee and Jang-Mok Kim, "Fault Diagnosis and Fault- Tolerant Control of DC-link Voltage Sensor for Twostage Three-Phase Grid-Connected PV Inverters," Journal of Electrical Engineering & Technology, Vol. 8, No. 4: 752-759, 2013. 

    원문보기 상세보기 crossref

  10. Behzad Mirzaeian Dehkordi, Amir Farrokh Payam, Mohammad Naser Hashemnia and Seung-Ki Sul, "Design of an Adaptive Backstepping Controller for Doubly-Fed Induction Machine Drives," Journal of Power Electronics, Vol. 9, No. 3, pp. 343-353, May. 2009. 

    원문보기 상세보기

  11. Han-Su Jung, Seon-Hwan Hwang, Jang-Mok Kim, Cheul-U Kim and Cheol Choi, "Diminution of Current-Measurement Error for Vector-Controlled AC Motor Drives," IEEE Trans. Industry Applications, Vol. 42, No. 5, pp. 1249-1256, Sept.-Oct. 2006. 

    상세보기 crossref

  12. Dae-Woong Chung and Seung-Ki Sul, "Analysis and Compensation of Current Measurement Error in Vector-Controlled AC Motor Drivers," IEEE Trans. Industry Applications, Vol. 34, No. 2, pp. 340-345, 1998. 

    상세보기 crossref

  13. B. H. Lam, S. K. Panda, J. X. Xu and K. W. Lim, "Torque ripple minimization in PM synchronous motor using iterative learning control," in proceedings of the 1999 Industrial Electronics Society Annual Conference of the IEEE, vol. 3, pp. 1458-1463, 1999. 

  14. Roberto Barro and Ping Hsu, "Torque ripple compensation of induction motors under field oriented control," IEEE APEC Conference, Vol. 1, pp. 527-533, 1997. 

  15. Weizhe Qian, S. K. Panda and J. X. Xu, "Reduction of periodic torque ripple in PM synchronous motors using learning variable structure control," IEEE IECON Conf., vol. 2, pp. 1032-1037, 2002. 

  16. Jong-Woo Choi, Sang-Sup Lee, Sang-Yeop Yu and Seok-Joo Kang, "Novel periodic torque ripple compensation scheme in vector controlled AC motor drives," IEEE APEC Conference, Vol. 1, pp.81-85, 1998. 

  17. Sol-Bin Lee, Kyo-Beum Lee, Dong-Choon Lee and Jang-Mok Kim, "An Improved Control Method for a DFIG in a Wind Turbine under an Unbalanced Grid Voltage Condition," Journal of Electrical Engineering & Technology, Vol. 5, No. 4, pp. 614-622, 2010. 

    원문보기 상세보기 crossref

  18. Young-Il Kim, Seon-Hwan Hwang, Jang-Mok Kim, Seung-Ho Song, Chan-Ki Kim and Young-Do Choy, "Reduction of current ripples due to current measurement errors in a doubly fed induction generator," IEEE Applied Power Electronics Conference and Exposition(APEC) 2008, pp.756-760, 2008. 

  19. Gui-Geun Park, Seon-Hwan Hwang, Jang-Mok Kim, Kyo-Beum Lee and Dong-Choon Lee, "Reduction of Current Ripples due to Current Measurement Errors in a Doubly Fed Induction Generator," Journal of Power Electronics, Vol. 10, No. 3, pp. 313-319, May. 2008. 

    원문보기 상세보기 crossref

  20. Won-Sang Im, Seon-Hwan Hwang, Jang-Mok Kim and Jeaho Choi, "Analysis and compensation of current measurement errors in a doubly fed induction generator," IEEE Energy conversion congress and Exposition(ECCE) 2009, pp. 1713-1719, 2009. 

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