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IGBT 3-Level Converter (3ph)

Purpose

3-phase 3-level neutral-point clamped IGBT converter

Library

Electrical / Converters

Description

pict

Implements a three-phase three-level IGBT converter with neutral point clamping. The gate input is a vector of three signals - one per leg. The topmost IGBT, connected to the positive dc level, is turned on if the corresponding gate signal is ≥ 1  , and the second IGBT if the signal is ≥ 0  . The third IGBT is turned on for signals ≤ 0   and the lowest one for signals ≤ - 1  . Gate signal values of 1  , 0   and - 1   connect the phase output to the positive, neutral and negative dc level. By applying a non-zero signal at the inhibit input marked with "x" you can turn off all IGBTs.

You can choose between two different converter models:

The electrical circuit for the converter is shown below:

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Parameters

For a description of the parameters see the documentation of the IGBT with Diode, the IGBT and the Diode.

Probe Signals

The three-level IGBT converters provide 36 probe signals grouped by leg. Each signal is a vector containing the appropriate quantities of the individual devices: voltage, current, conductivity, conduction loss and switching loss. The vector elements are ordered top-to-bottom.

For the IGBT 3-Level Converter with Parasitics the diode probe signal vectors are in the order: anti-parallel diodes (top-to-bottom), clamping diodes (top-to-bottom).