Modulation
What will you learn:
- Add PWM and SVM modulation
- Apply PWM and SVM for the discrete inverter model with centerline modulation
- Apply PWM and SVM for the averaged inverter model
Prerequisites:
- Basic knowledge of Caspoc
- Previous tutorial:
Building an inverter using a single Mosfet or IGBT model
Modulation
Adding modulation
We continue this series of tutorials on building a three phase inverter with creating a three phase inverter using a single model. These single models are found in the section Components/Library/PowerConverters/Inverter. We add a simple Pulse Width Modulation by simply adding a Centerline block from the Components/Library/PowerConverters/InverterControl/Modulation section and a three phase reference source from the Components/Library/PowerConverters/InverterControl/Source section. All required components can be found in the sections as shown below.
Single Inverter Component
We start with building the circuit by the placement of the DC source and adding an inverter model.
All components are from the Components/Circuit/RLC and Components/Circuit/Sources sections. The inverter model will be taken from the Components/Library/PowerConverters/Inverter section.
