A Digital Controller Design Method to Improve Performance of PFC Converter

DOI: 10.4236/epe.2013.54B031   PDF   HTML     4,602 Downloads   5,686 Views  

Abstract

With the rapid development of digital signal processing chip in recent years, DSP began to be used in more switching power supply. The advantages of digital control of their own, making the digital control PFC become a hotspot research. However, compared with the simulation system, the digital control technology still has many problems. In this paper, the problem of digital PI compensator as a voltage compensator is discussed, and the Single-pole voltage loop compensator is used in digital control PFC circuit. Because current loop bandwidth is narrow, a method to expand current loop bandwidth is put forward. Output power 300 W of prototype is made, and experimental results verify the correctness of the theory.

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X. Zhang, W. Zhang, P. Mao and D. Fu, "A Digital Controller Design Method to Improve Performance of PFC Converter," Energy and Power Engineering, Vol. 5 No. 4B, 2013, pp. 162-166. doi: 10.4236/epe.2013.54B031.

Conflicts of Interest

The authors declare no conflicts of interest.

References

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[2] D. Lloyd, “Average Current Mode Control of Switching Power Supplies,” Texas Instruments Applica-tion Note (U-134).
[3] G. H. Liu, W. Wang and D. G. XU, “With Fast Dynamic Response of the Digital Power Factor Correction Algorithm,” China Electrical Engineering, Vol. 29, No. 12, 2009, pp.10-12.
[4] J. Wang, Y. D. Li and Y. J. Ma, “A Marked Increase in Converter Current Loop Bandwidth of the New Method for Electrical Transmission,” Vol. 39, No. 6, 2009, pp. 34-38.
[5] H. J. Wang and M. Yang, “Permanent Magnet AC Servo Current Loop Bandwidth Expansion,”Chinese Mechanical and Electrical Engineering, Vol. 30, No. 12, 2010, pp. 56-60.

  
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