Permanent Magnet Synchronous Generator Battery Charging

Open Model

This example shows how to use a permanent magnet synchronous generator (PMSG) to charge a battery. An ideal angular velocity source is used to maintain the rotor speed constant. The Control subsystem uses field oriented control to regulate the torque of the PMSG. The torque reference is obtained as a function of dc-link voltage. The initial battery state of charge is 25%. The Scopes subsystem contains scopes that allow you to see the simulation results.

Model

Simulation Results from Simscape Logging

The plot below shows the generator torque and the battery voltage and state of charge.

Results from Real-Time Simulation

This example has been tested on these platforms:

  • Speedgoat™ Performance real-time target machine with an Intel® 3.5 GHz i7 multi-core CPU and 4 GB RAM.

  • dSPACE® SCALEXIO LabBox with Intel® Core XEON E3-1275v3 at 3.5GHz and 4 GB RAM.

You can run this model in real time with a step size of 50 microseconds by using the Simscape local solver. For small sample rates, a task overrun might occur during the initial task execution due to a cold cache. To avoid this overrun, if the selected platform supports these options, relax the start-up behavior by specifying a limited number of task overruns or increasing the sample time of periodic tasks during the start-up phase of the real-time application.