Three-level (3L) inverters have seen widespread adoption in medium-to-high-voltage high-power drives compared to their two-level (2L) counterparts, owing to advantages such as reduced voltage stress on power devices and improved output waveform quality. Neutral-point voltage (NPV) balancing remains a critical issue in neutral-point-clamped (NPC) topologies, particularly in series-end winding (SEW) motor drives, which enhance DC-bus utilization but lack dedicated modulation strategies for NPV bal