Modelling and control of DC/DC converters and voltage-source converters (VSCs): buck, boost, buck-boost DC/DC converters, voltage-source converter (VSC). Effective techniques for mathematical modelling and control design: converter dynamics and control, AC equivalent circuit modeling, converter transfer functions, controller design. Application to the design and the study of modern power systems. Presentation of a number of power electronics applications in renewable energy systems: high-voltage direct current (HVDC) with modular multi-level converter (MMC) topologies, converter-based energy resources.