Economic and versatile laboratory setup for teaching power electronics in bachelor courses

This paper presents a laboratory setup for teaching basics of power electronics. The setup consists of a 3 phase transformer, a rectifier and four half-bridges. The latter can be configured as DC-DC converters (buck and full-bridge converter) or as AC-DC converters (one and three phase voltage-source inverters). Different PWM control schemes as well as on-off current control are implemented. It allows doing experiments on a safe 24V DC voltage level and is economically priced. So a set of 10 setups is affordable and allows a number of 20 students to work on the same experiment in groups of 2 students simultaneously.