HYBRID MULTILEVEL INVERTER COMBINING 3-LEG INVERTERS AND H-BRIDGE MODULES FOR SOLAR PHOTOVOLTAIC APPLICATIONS
DOI:
https://doi.org/10.62985/j.huit_ojs.vol25.no6.360Từ khóa:
Hybrid multilevel inverter, standalone PV system, a 3-leg inverter, H-bridgeTóm tắt
The rapid deployment of renewable energy technologies has significantly accelerated the adoption of solar photovoltaic systems in modern power networks. In this study, a hybrid multilevel inverter (HMI) architecture, consisting of a three-leg voltage source inverter combined with H-bridge modules and an output LC filter, is proposed for standalone photovoltaic applications. The system is capable of supplying balanced and unbalanced nonlinear AC loads while maintaining voltage quality. A multi-carrier PWM strategy together with a proportional–integral voltage controller is implemented to regulate the output voltage. The operational performance of the proposed inverter is verified through detailed PSIM-based simulations.
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