A Switched Capacitor Single Source Step-Up Multilevel Inverter

Authors

  • M. Arul Prasanna
  • P. Soundar Rajan
  • I. Gerald Christopher Raj
  • K. Dhayala Sundaram

Abstract

The aim of this paper is to present a switched capacitor, step-up, multilevel inverter (MLI) with only one DC power supply. The above said inverters are appropriate in the emerging non-conventional energy usage that has reduced dc input supplies. Intended circuit configuration has the facility of self voltage balance and not required to have H-bridge at output for alternating current wave. Therefore the power loss in switching operation and the large stress due to high voltages are abridged. Capacitors that are charged previously from low voltage supply are used to accomplish larger undistorted voltage and currents by having parallel and series combinations. The process of operation, concept for storing charge, control of output parameters are elaborated further.  Less number of power switches employed in this configuration is advantageous comparatively. Matlab-simulink results provide competent operation of the planned inverter in boost configuration having fewer harmonics at output.

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Published

2020-02-19

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Section

Articles