This study introduces a novel control strategy for a nine-level SPUC multilevel inverter. The SPUC architecture enables the generation of high output voltage levels while optimizing the count of active and passive components. The devised control methodology utilizes a specialized pulse width modulation (PWM) technique to balance capacitor voltages during open-loop operation inherently, thereby eliminating dependencies on external filtering systems or closed-loop controllers. The system’s cost and operational complexity are markedly reduced by omitting these supplementary components and control loops. The efficacy of the SPUC topology, combined with the proposed control strategy, is validated through comprehensive numerical simulations. Results reveal consistent dynamic performance across diverse load scenarios. Additionally, the PWM approach substantially reduces total harmonic distortion (THD) in the output, enhancing power quality and overall system efficiency.