IGBT 3-Level Converter (3ph)
Purpose
3-phase 3-level neutral-point clamped IGBT converter
Library
Electrical / Converters
Description
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 , and the second IGBT if the signal is
. The third IGBT is turned
on for signals
and the lowest one for signals
. Gate signal values of
,
and
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 basic IGBT 3-Level Converter is modeled using the component IGBT with Diode. No parameters can be entered.
- The IGBT 3-Level Converter with Parasitics is based on individual IGBT and Diode components. In this model you may specify forward voltages and on-resistances separately for the IGBTs and the diodes.
The electrical circuit for the converter is shown below:
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).