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An N-level Inverter System with Buck/Boost capability employing reduced switch count
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  • Javed Ahmad,
  • Mohammad Fahad,
  • Mohd Suhail Khan,
  • Chang-Hua Lin,
  • Adil Sarwar,
  • Mohd Tariq
Javed Ahmad
National Taiwan University of Science and Technology

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Mohammad Fahad
National Taiwan University of Science and Technology
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Mohd Suhail Khan
National Taiwan University of Science and Technology
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Chang-Hua Lin
National Taiwan University of Science and Technology
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Adil Sarwar
Aligarh Muslim University Faculty of Theology
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Mohd Tariq
Aligarh Muslim University Faculty of Theology
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Abstract

In this letter, In this letter, an n-level inverter possessing buck/boost capability is introduced wherein only five power electronic switches are employed for obtaining a multilevel waveform. In the proposed system, a dc source (obtained from a battery/PV source/fuel cell/rectifier) is bucked/boosted using a buck-boost dc-dc converter), thus having the advantage of both voltage step-up and step-down capabilities. The polarity reversal for step-up/step-down voltage is obtained using an H-bridge topology. MATLAB SIMULINK and a hardware prototype is used to validate the concept and results.