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Comparative Study of Two Control Strategies for Capacitor Voltage Balancing in Three-Level Boost Converter for Photovoltaic Grid-Connected Power System

  • Yiming Chen
  • Zhencong Li
  • Shuping Yang
  • Wen Xu
  • Lingling Xie
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 482)

Abstract

The three-level boost converter (TLBC) which is applied in the photovoltaic (PV) grid-connected power generation system has an inherent defect of the midpoint potential shift. This paper compares two control strategies which can solve the problem. They are duty cycle independent control strategy and pulse phase delay control strategy. Then the principles of the two control strategies are analyzed, and in order to carry out simulation experiments more accurately and quickly, the characteristics of the strategies are verified based on the co-simulation of PSIM + Matlab. The results show that the duty cycle independent control strategy has better performance under the condition of the bias voltage is larger.

Keywords

Duty cycle independent control strategy Pulse phase delay control strategy Co-simulation Three-level boost converter 

References

  1. 1.
    Yang C (2014) Research on key technologies of three–level boost for photovoltaic grid-connected power system. Yangzhou University (In Chinese)Google Scholar
  2. 2.
    Krishna R, Soman DE, Kottayil SK et al (2015) Pulse delay control for capacitor voltage balancing in a three-level boost neutral point clamped inverter. Power Electron Iet 8(2):268–277CrossRefGoogle Scholar
  3. 3.
    Yao G, Ma M, Deng Y, et al (2006) An improved ZVT PWM three level boost converter for power factor preregulator. In: Power electronics specialists conference, 2007. Pesc. IEEE, pp 768–772Google Scholar
  4. 4.
    Zhang MT, Jiang Y, Lee FC et al (1995) Single-phase three-level boost power factor correction converter. In: Applied power electronics conference and exposition, 1995. Apec ‘95. Conference proceedings. IEEE, vol. 1, pp 434–439Google Scholar
  5. 5.
    Xia C, Gu X, Shi T et al (2011) Neutral-point potential balancing of three-level inverters in direct-driven wind energy conversion system. Energy Convers IEEE Trans 2011 26(1):18–29CrossRefGoogle Scholar
  6. 6.
    Li F, Wang Z, Xiao L et al (2016) Simulation of bidirectional energy converter based on PSIM and Matlab. Electr Switch 54(3):61–64, 67 (In Chinese)Google Scholar
  7. 7.
    Li J, Wang W, Zhong Y et al (2010) PSIM + Matlab co-simulation method for power electronic system. Power Electron Technol 44(5):86–88 (In Chinese)Google Scholar
  8. 8.
    Chen Shuang, Duan Guoyan, Tang Wei et al (2014) Co-simulation of induction motor vector control based on SVPWM. Manuf Autom 1:95–97 (In Chinese)Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Yiming Chen
    • 1
  • Zhencong Li
    • 1
  • Shuping Yang
    • 1
  • Wen Xu
    • 1
  • Lingling Xie
    • 1
  1. 1.Zhuhai Power Supply Bureau of Guangdong Power Grid CompanyZhuhaiChina

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