The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Output AC Voltage Control of a Three-Phase Z-Source Inverter by the Voltage Gain and Modulation Index Control

전압 이득과 변조지수 제어에 의한 3상 Z-소스 인버터의 출력 교류 전압 제어

  • Received : 2010.07.24
  • Accepted : 2010.10.01
  • Published : 2010.11.01
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Abstract

This paper proposes a new method for constant control of the output AC voltage of a voltage-fed three phase Z-source inverter (ZSI), in case of Z-network DC voltage variation or heavy change of load. The modulation index for the reference output AC voltage of ZSI can be calculated by the basic definition of ZSI, the input DC voltage and capacitor voltage of Z-network. And, the output AC voltage of ZSI is controlled by the modified space vector modulation (SVM) with the calculated modulation index. By the proposed method, the modulation index of output AC voltage is closely following in the reference modulation index. The validity of the proposed method is verified using PSIM simulation. In case which the input DC voltage of ZSI is heavily changed from 100[V] to 70[V] (or to 150[V]) and in case which load is changed from $30[\Omega]$ to $10[\Omega]$, we confirmed that the output AC voltage of ZSI is constantly controlled by the proposed method because the modulation index of ZSI is also simultaneously changed. Finally, FFT and %THD of the output voltage and current of ZSI by the proposed method are analyzed.

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References

  1. F. Z. Peng, "Z-Source Inverter," IEEE Trans. Ind. Applicat., Vol. 39, No.2, pp. 504-510, March/April 2003. https://doi.org/10.1109/TIA.2003.808920
  2. Fang Z. Peng, X. Yuan, X. Fang, and Z. Qian, "Z-Source Inverter for Adjustable Speed Drives," IEEE Power Electron. Letters, Vol. 1, No. 3, pp33-35, June 2003. https://doi.org/10.1109/LPEL.2003.820935
  3. T. Meenakshi, K. Rajambal, "Identification of an Effective Control Scheme for Z-source Inverter," Asian Power Electronics Journal, Vol. 4, No.1, pp.22-28, April 2010.
  4. V.G. Agelidis, P.D. Ziogas, G. Joos, "Dead-Band PWM Switching Patterns," IEEE Trans. Power Electron., Vol. 11, No. 4, pp. 522-531, July 1996. https://doi.org/10.1109/63.506117
  5. Y. Shuitao, et al., "Unified Control Technique for Z-Source Inverter," in Proc. IEEE PESC'08, 2008, pp. 3236-3242.
  6. Q. Tran, T. Chun, J. Ahn, and H. Lee, "Algorithms for Controlling Both the DC Boost and AC Output Voltage of Z-Source Inverter," IEEE Trans. Ind. Electron., vol. 54, No.5, pp. 2745-2750, Oct. 2007. https://doi.org/10.1109/TIE.2007.895146
  7. X. Ding, Z. Qian, S. Yang, B. Cui, and F. Z. Peng, "A Direct Peak DC-link Boost Voltage Control Strategy in Z-Source Inverter" in Proc. IEEE APEC'07, 2007, pp. 648-653.
  8. X. Ding, Z. Qian, S. Yang, B. Cui, and F. Z. Peng, "A PID Control Strategy for DC-link Boost Voltage in Z-Source Inverter," in Proc. IEEE APEC'07, 2007, pp. 1145-1148.
  9. T. chun, Q. Tran, J. Ahn, and J. Lai, "AC Output Voltage Control with Minimization of Voltage Stress Across Devices in the Z-Source Inverter Using Modified SVPWM" in Proc. IEEE PESC'06, 2006, pp. 3030-3034.
  10. F. Z.Peng, M. Shen, and Z. Qian, "Maximum Boost Control of the Z-Source Inverter," IEEE Trans. Power Electron., Vol. 20, No. 4, pp. 833-838, July 2005. https://doi.org/10.1109/TPEL.2005.850927
  11. M.shen, J. Wang, F. Z. Peng, L. M. Tolert, and D. J. Adams, "Maximum Constant Boost Control of the Z-sSource Inverter," in Proc. IEEE IAS'04, 2004.
  12. Miaosen Shen, Jin Wang, Alan Joseph, Fang Zheng Peng, Leon M. Tolbert, Donald J. Adams, "Constant Boost Control of the Z-Source Inverter to Minimize Current Ripple and Voltage Stress", IEEE Trans. Ind. Applicat., Vol. 42, No. 3, pp. 770-778, May-June 2006. https://doi.org/10.1109/TIA.2006.872927
  13. P. C. Loh, D. M. Vilathgamuwa, Y. S. Lai, G. T. Chua, and Y. Li, "Pulse-Width Modulation of Z-Source Inverters," IEEE Trans. Power Electron., Vol. 20, No. 6, pp. 1346-1355, Nov. 2005. https://doi.org/10.1109/TPEL.2005.857543
  14. K. Zhou, and D. Wang, "Relationship Between Space-Vector Modulation and Three-Phase Carrier-Based PWM: A Comprehensive Analysis," IEEE Trans. Ind. Electron., Vol. 49, No.1, pp. 186-196, Feb. 2002. https://doi.org/10.1109/41.982262