Enabling technologies for matrix converters in aerospace applications

Experimental Comparison of a Direct Matrix Converter Using Si IGBT and SiC MOSFETs

“…If (I AVc <3) I AVc =3 (11) From the data sheets of the Si IGBTs and SiC MOSFETs it is possible to scale the switching energies to a given gate resistor, in our case Rg=10Ω. When these values are compared with the measured values presented previously, a significant discrepancy can be noted, in particular in the case of the higher speed SiC MOSFET converter.…”

“…This circuit has recently undergone renewed attention, especially in the field of variable speed drive applications [2][3][4][5] and in those applications where a more compact and robust solution [6] is required in place of the traditional two-level, rectifier/voltage source inverter (VSI) circuit [7][8][9]. Many examples in the literature also show the proposed use of the matrix converter technology for aerospace applications [10][11][12][13] because it results to a lighter and more power dense power converter implementation with a higher degree of reliability [14] when compared to a back-to-back converter where large DC-link electrolytic capacitors are often used.…”

Experimental Efficiency Comparison Between a Direct Matrix Converter and an Indirect Matrix Converter Using Both Si IGBTs and SiC <sc>mosfet</sc>s

“…They are employed in different applications and particularly in variable speed drive systems [1][2][3][4][5][6][7][8][9] where the application demands a more compact and robust solution [10] in place of the traditional two-level, rectifier/voltage source inverter (VSI) circuit [11][12][13]. Matrix converter technology has been considered more recently for aerospace applications [14][15][16][17][18] because of the potential for higher volumetric and gravimetric power density with improved reliability [19] when compared to a back-to-back converter employing large DC-link electrolytic. Two basic types of AC-AC matrix converter structure have been proposed in the literature, the Direct Matrix Converter (DMC) and the Indirect Matrix Converter (IMC) whose circuit schematics are shown in Figures 1a and 1b respectively.…”

Matrix converter open circuit behavior analysis

“…In order for continued operation, fault detection and diagnosis for the matrix converter must be both fast and reliable to minimize the hazard of over-voltage or over-current condition. There are many different types of faults which could occur in matrix converters, such as IGBT failure, diode failure, gate drive failure, and controller communication failure [9]. This paper focuses on open-circuit switch faults.…”

“…Since matrix converters have many switches and a diode clamp circuit is implemented for protection purpose, the current recirculating paths during an open circuit fault condition are not well understood in other literature. In literature [9] [12] [13] , the clamp circuit capacitor current knowledge is used for fault detection and diagnosis. An open circuit fault can be detected when the clamp circuit capacitor current is measured as a non-zero value.…”