Capacitor Switching-based High-Gain Boost Chopper Converters Analysis

  • Bahman Taheri 1. Department of Electrical Engineering, Bilesavar Branch, Islamic Azad University, Bilesavar, Iran.
  • Gholamreza Aghajani Young Researchers and Elite Club, Ardabil Branch, Islamic Azad University, Ardabil, Iran.
  • Mahsa Sedaghat Young Researchers and Elite Club, West Tehran Branch, Islamic Azad University, Tehran, Iran.
  • Shokoufeh Sharifi Hamedan Electric Distribution Company, Mahdieh St., Hamedan, Iran.
  • Milad Teimourian Young Researchers and Elite Club, Ardabil Branch, Islamic Azad University, Ardabil, Iran.
Keywords: DC-DC boost converter, switched capacitor, High gain, High efficiency, Low cost, photovoltaic system.


Renewable energy resources such as photovoltaic systems are a promising way to meet the nowadays energy demand.  In this paper, a novel non-isolated DC-DC boost converter is proposed to be used in photovoltaic systems. Since photovoltaic systems have low voltage gain, it is required to utilize a converter with high gain, low cost, and high efficiency. Thus, the proposed converter is of an additive boost converter with a switched inductor. With an appropriate duty cycle and low-voltage pressure in power switch, this converter obtains high voltage gain. Additional stored energy in the inductor may be eliminated in the output capacitor.    


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