This page provides an example of closed-loop current control for a grid-tied Neutral Point Clamped (NPC) inverter. The considered setup is a three-phase three-wire NPC inverter supplied by a DC source and connected to the grid. . The connected load could be wye or delta, but we illustrate it as a wye connection with internal (unconnected) neutral point. Considering inverter states in which one switch in each half-bridge is always on (for current continuity at the load) there are 23 = 8 switch state possibilities for the. . This paper compares two- and three-level AC/DC converters for three-phase industrial applications, focusing our analysis on two-level, T-type, active neutral point clamped (ANPC), neutral point clamped (NPC) and flying capacitor (FC) topologies. An EMC filter is inserted for adequate filtering of the injected. . The medium-voltage multi-phase open-winding motor and the multi-phase three-level neutral-point clamped (3L-NPC) H-bridge inverter are the preferred solutions for large-tonnage ship propulsion systems. However, the multi-phase 3L-NPC H-bridge inverter is different from the traditional three-phase. . Modern electronic systems cannot function without three-phase inverters, which transform DC power into three-phase AC power with adjustable amplitude, frequency, and phase difference. They are essential in several applications, including as power distribution networks, renewable energy systems, and. . Modules with an NPC topology are used mainly in three-phase PV inverters and uninterruptible power supplies, and rarely also in frequency inverters with a high output frequency. An NPC module is often called a three-level module.