Page 126 - IJEEE-2023-Vol19-ISSUE-1

122 | Al-Atbee, Kadhem, Harden, & Abdulhassan
S2-S3
S1-S4

S5

S6
S7

Fig. 4: The Timing signals of the control circuit.

The circuit controller is made up of a variety of logical and
mathematical MATLAB functions, and it is these functions
that are responsible for producing the pulses to control the
proposed inverter.
Figure 5 depicts the output voltage of the inverter with 15
levels that has been proposed. Figure 6 illustrates the total
harmonic distortion, or THD, that is present in the output
voltage. Examining the diagram, one can observe that the
THD equal to 8.24 when the modulation index m is about
0.95.

Fig. 5: The 15-level inverter output voltage. Fig. 6: The total harmonic distortion (THD) of the 15-level
inverter.

IV. CONCLUSION

Multi-level inverters are becoming increasingly
significant in today's applications. A 15-level inverter is
presented in this work. The proposed inverter may produce a
high-quality output voltage while minimizing overall
harmonic distortion (THD). In terms of performance, it