ABSTRACT
This chapter investigates the three phase power converter as a system, outlining packaging and protection problems. It presents details related to the building of a three-phase power converter. Information about three-phase power converters can easily be found in many textbooks, but the way the converter is built and protected is also important. Power semiconductor devices for a three-phase power converter should be selected after determining the power converter ratings from the application requirements and taking into account the cooling and stress requirements for a given power level. The power converter must be able to process the whole apparent power, including the active power that produces torque and circulates reactive power. A final comment about the control system relates to the actual use of the flyback power supply within a multiphase power converter. Three-phase inverters in which the neutral is not connected experience a continuous variation of the neutral voltage with respect to earth.
