Electrical performance and harmonic analysis of a 10 kW sic-based three-phase grid-tied PV inverter using centered SVPWM

This paper discusses about the process used to construct and evaluate a 10 kW grid-tied photovoltaic inverter which is made for the North European market at a temperature of 25°C. Centered Pulse Width Modulation (SVPWM) is employed to manage the Three-Phase, Two-Level Voltage Source Inverter and Silicon Carbide (SiC) MOSFET technology which is utilized in the inverter. The system works best when the modulation index is 0.82, which makes the most of the DC bus and the quality of the waveform. It takes in 800 V DC and sends out 400 V AC from one line to the next. The simulation output indicates that the voltage synthesis is correct, with a full load RMS line-to-line voltage of 399.52 V, an RMS phase voltage of 231.11 V, an RMS pole voltage of 461.55 V, and an RMS phase current of 14.61 A. With a high power factor of 0.98, the inverter ensures that the system is compatible with the grid. The SVPWM method successfully minimizes low-order harmonics and improves waveform purity, shown by the current Total Harmonic Distortion (THD) of 0.45%. The performance validation is done with loads that are between 10% and 100% of the rated power. This proves that the equipment works reliably and produces the same results every time. The results reveal that the proposed SVPWM-controlled SiC-based inverter has higher power quality and performance that fulfills grid standards. This makes it a good candidate for medium-power solar applications.