The present article introduces a new approach for designing three-phase power conversion with simple DC-DC converters. Conventionally, achieving three-phase pure sinusoidal waveforms involves three-power conversion stages: a DC-DC converter and a DC-AC inverter, followed by a filter circuit. The filter size can be minimized by replacing conventional 3-leg inverter with multilevel inverter (MLI) at the cost of higher semiconductor switches and driving circuits. However, both these approaches demand lengthy power conversion stages or more device count, which leads to increased size, volume, cost, complex control techniques, and losses, thus reducing overall efficiency. In response, the proposed solution adopts a streamlined architecture, utilizing a single power conversion stage comprising only one semiconductor switch per phase. The proposed inverter demonstrates its versatility in generating high-quality output voltage waveforms without filter circuits. A novel sinusoidal quantized switching technique (NSQST) is presented for generating three-phase sinusoidal output waveforms. The effectiveness of this proposed inverter is demonstrated through simulations using the MATLAB/SIMULINK tool, further validated through real-time simulations conducted on the OPAL-RT platform.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A Three-Switch Three-Phase Inverter with Novel Switching Approach for Grid-Connected Applications


    Contributors:


    Publication date :

    2024-07-31


    Size :

    19993256 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    LCL filter design for an NPC three-level three-phase grid-connected inverter

    Benet-Barberan, Jordi / Pages-Gimenez, Marc / Galceran-Arellano, Samuel et al. | Tema Archive | 2012


    Three-phase grid connected inverter for photovoltaic systems, a review

    Mechouma, R. / Azoui, B. / Chaabane, M. | IEEE | 2012



    Single-phase grid-connected PV system using three-arm rectifier-inverter

    Chang, J.M. / Chang, W.N. / Chung, S.J. | IEEE | 2006


    A Reduced Switch Multilevel Inverter with Grid Connected Solar PV System

    Sirsa, Aditya / Subramanyam, Yamini / Mittal, Arvind et al. | IEEE | 2024