image thumbnail

Three-Phase AC-DC-AC PWM Converter

version (145 KB) by Patrice Brunelle
SimPowerSystems model of a three-phase PWM VSC-based power supply.


Updated 28 Sep 2012

View License

A 50 kW, 380 V, 50 Hz load is connected to a 25 kV, 60 Hz grid through a AC-DC-AC power supply. This power supply consists of two voltage source converters, VSC1 and VSC2, connected through a DC link.

VSC1 connected on 60Hz grid is operating as a rectifier. It regulates the DC link voltage at 680 V and keeps unity power factor on AC grid. The PWM chopping frequency is 1980 Hz.

VSC2 connected on 50 Hz load is operating as an inverter. It generates a 50 Hz frequency and regulates load voltage at 380 Vrms. The PWM chopping frequency is 2000 Hz.

The electrical circuit is discretized at 2 microseconds. The sampling time of the VSC1 and VSC2 control systems is 100 microseconds.

Authors: Gilbert Sybille & Pierre Giroux, Hydro-Québec (IREQ)

Cite As

Patrice Brunelle (2021). Three-Phase AC-DC-AC PWM Converter (, MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2011b
Compatible with any release
Platform Compatibility
Windows macOS Linux

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!