DC and AC motor driving

The power electronics field has become an important topic in the electronics industry and the information technology area (telecom products and electronic consumer appliances requiring many power electronics sub-systems). Typical power electronics applications include electronic ballasts, high voltage DC transmission systems (HVDC), power conditioners, UPS systems, power supplies, power factor correction, rectifiers, electric vehicles and one of the major area of applications is the control and driving of electric motors (from very large motors for industrial and traction applications down to small electric motors in consumer electronic equipment with accurate control of speed, torque and position of the armature, etc.). To highlight the advantages of power electronics laboratory, De Lorenzo has included also three different motors for DC and AC applications; shunt excitation DC motor, slip ring and squirrel cage three-phase motors with powder brake and control unit to demonstrate how power electronic circuits plays a vital role in controlling these motors. There are available three trainers, one for DC motor drive (in single-quadrant, two-quadrant or four-quadrant drive) and two for AC motor drive (properties of slip ring and squirrel cage motors with their speed control). They are dedicated to high schools and first years of university.