6533b861fe1ef96bd12c45ee

RESEARCH PRODUCT

Investigation on Cascode Devices for High Frequency Electrical Drives Applications

Filippo PellitteriVincenzo CastigliaRosario MiceliAntonino Oscar Di TommasoGiorgio Vassallo

subject

Settore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniMomentum (technical analysis)High voltage deviceComputer sciencebusiness.industry020209 energyCascode020208 electrical & electronic engineeringElectrical engineeringHigh voltage02 engineering and technologyConvertersSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciHigh frequencyPower transistors0202 electrical engineering electronic engineering information engineeringField-effect transistorPower semiconductor deviceCascodebusinessFrequency modulationPulse-width modulation

description

In the last years a widespread development in the market of electrical drives employing high-speed electrical machines has occurred in various industrial fields, due to the extremely high power density that can be reached. Nevertheless, to maintain output power quality without using bulky filtering networks, DC-AC converters should be controlled by means of higher PWM switching frequencies. New switching device technologies, such as Field Effect Transistors based on SiC and GaN, are therefore gathering momentum in order to comply with the higher working frequencies. To operate under high frequencies and at the same time at high voltage levels, alternative circuital configurations for switching power devices are also investigated. The cascode structure is particularly appropriate for those applications. In this paper, after a detailed overview of the most recent state of art in the field of cascode devices, a typical application of three phase inverter will be investigated using some cascode-based solutions, for a 400 Hz modulation frequency. An experimental prototype concerning a single-switch DC-AC is presented in order to investigate the results given by a cascode structure.

yearjournalcountryeditionlanguage
2019-09-01
10.23919/aeit.2019.8893301http://hdl.handle.net/10447/386799