Abstract:
This paper proposed a single-phase three-level inverter
that has constant voltage constant frequency (CVCF) operation
system. Harmonic analyses with linear and nonlinear loads have
been realized to measure the robustness of the proposed
technique. It has been shown that the proposed technique has
15% less harmonic distortion and better performance than the
conventional inverter for the same load and switching frequency.
The constant voltage and frequency used feedback PI control
blocks. The system stability was analyzed with the help of Bode
curves. The proposed control schema is verified by
MATLAB/Simulink results and the results prove that the
proposed method is able to achieve not only low harmonic
distortion but constant voltage and constant frequency for
various operating conditions.