Cascaded Operation of Hybrid Multilevel Inverter with Optimum Switching Angle Control for Power Quality Enhancement

  • Hejeebu PrasadEmail author
  • R. Kameswara Rao
  • S. Kranthi Kumar
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 655)


Hybrid multilevel inverters (MLI) are popular for high-voltage and high-power applications with a reduced number of devices, for the purpose of cost optimization, ease of design, control, and maintenance. The minimum total harmonic distortion (THD) levels indicate power quality improvement to the maximum level. THD can be minimized by optimum switching angle control. In this paper, two 19-level hybrid multilevel inverters are cascaded to produce output voltage of 37 levels with optimum switching angle control for enhancing the power quality by reducing the THD. The system is simulated in MATLAB/Simulink. The THD of simulated output of is compared with the calculated values.


THD Multilevel inverters Hybrid MLI Optimum switching angles Power quality 


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© Springer Nature Singapore Pte Ltd. 2021

Authors and Affiliations

  • Hejeebu Prasad
    • 1
    Email author
  • R. Kameswara Rao
    • 1
  • S. Kranthi Kumar
    • 1
  1. 1.Department of Electrical and Electronics EngineeringRaghu Engineering CollegeVisakhapatnamIndia

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