Soft-Switching Integrated Quasi Resonance Buck-Boost Converter for HHO Optimized Grid Connected PV System

International Journal of Electrical and Electronics Engineering
© 2022 by SSRG - IJEEE Journal
Volume 9 Issue 8
Year of Publication : 2022
Authors : Nisha C. Rani, N Amuthan
How to Cite?

Nisha C. Rani, N Amuthan, "Soft-Switching Integrated Quasi Resonance Buck-Boost Converter for HHO Optimized Grid Connected PV System," SSRG International Journal of Electrical and Electronics Engineering, vol. 9,  no. 8, pp. 28-39, 2022. Crossref,


The most economical and ecologically beneficial electrical energy worldwide results from solar photovoltaic systems. However, switching action under normal operation undergoes stress since the voltage or current may not be zero at the changeover time. Here, we suggested the ZVT-ZCT Quasi Resonance Buck-Boost converter (QRBB), which introduces L-C dynamics and induces a forced oscillation, allowing the primary switch (IGBT) to turn off at zero current transition and turn on at zero voltage transition, thereby reducing stress on switching device. Furthermore, the VSI is controlled by the Harris Hawks Optimization Algorithm (HHO) optimized proportional-integral (PI) controller. The proposed dc-dc converter can deliver pure sinusoidal output current and voltage waveforms with better output voltage enhancement. The suggested QRBB Converter's performance and efficiency are tested through simulation using the Matlab Simulink software. The result shows that the PI-HHO controller provides a better steady and dynamic state response and delivers quality power to the grid than the conventional PI controller.


Global Warming, Solar Photovoltaic Systems, Electrical Energy, Output Voltage, Matlab.


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