IGBT/Diode

Implements ideal IGBT, GTO, or MOSFET and antiparallel diode

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Libraries:
Simscape / Electrical / Specialized Power Systems / Power Electronics

Description

The IGBT/Diode block is a simplified mode of an IGBT (or GTO or MOSFET)/Diode pair where the forward voltages of the forced-commutated device and diode are ignored.

Assumptions and Limitations

• The IGBT/Diode block implements a macro model of the real IGBT and Diode devices. It does not take into account either the geometry of the devices or the complex physical processes [1].

• The IGBT/Diode block cannot be connected in series with an inductor, a current source, or an open circuit, unless its snubber circuit is in use.

Ports

Input

g — Device control signal

Simulink^® signal

Simulink signal to control the opening and closing of the device.

Output

m — Switch output

Simulink signal

The Simulink output of the block is a vector containing two signals. You can demultiplex these signals by using the Bus Selector block provided in the Simulink library:

Signal	Definition	Units
1	IGBT/Diode current	A
2	IGBT/Diode voltage	V

Dependencies

To enable this port, select the Show measurement port parameter.

Conserving

C — IGBT collector

specialized electrical

Specialized electrical conserving port associated with the IGBT/Diode collector.

E — IGBT emitter

specialized electrical

Specialized electrical conserving port associated with the IGBT/Diode emitter.

Parameters

To edit block parameters interactively, use the Property Inspector. From the Simulink Toolstrip, on the Simulation tab, in the Prepare gallery, select Property Inspector.

Internal resistance Ron — Internal resistance of IGBT

1e-3 (default) | nonnegative scalar

Internal resistance of the device, in ohms (Ω).

Snubber resistance Rs — Snubber resistance

1e5 (default) | nonnegative scalar

Snubber resistance, in ohms (Ω). Set the Snubber resistance Rs parameter to inf to eliminate the snubber from the model.

Snubber capacitance Cs — Snubber capacitance

inf (default) | nonnegative scalar

Snubber capacitance in farads (F). Set the Snubber capacitance Cs parameter to 0 to eliminate the snubber, or to inf to get a resistive snubber.

Show measurement port — Option to show measurement port

on (default) | off

If selected, add a Simulink output to the block returning the diode IGBT current and voltage.

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

Version History

Introduced in R2006a