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3-Level IGBT Converter

Purpose

Three-phase three-level neutral-point clamped IGBT converter.

Library

Converters

Description

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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.

You can choose between two different converter models:

The electrical circuit for the converter is shown below:

pict

Parameters and Dialog Boxes

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IGBT forward voltage
Additional dc voltage V f in volts (V) between collector and emitter when an IGBT is conducting. The default is 0.
IGBT on-resistance
The resistance Ron of a conducting IGBT, in ohms (_O_). The default is 0.
Diode forward voltage
Additional dc voltage V f in volts (V) between anode and cathode when a diode is conducting. The default is 0.
Diode on-resistance
The resistance Ron of a conducting diode, in ohms (_O_). The default is 0.