You can use Simscape to simulate a commercial HVAC system and assess the affect of variable speed drive on the performance. Check out these examples on relevant pieces of the system:
Refrigerant cycle performance and efficiency
Moist Air Thermodynamics:
Motor performance and efficiency:
We offer a variety of comprehensive trainings on how to use Simscape, which you can find here:
You will also see MATLAB and Simulink appear in the list as they are pre-requisites for the Simscape courses.