Loss analysis of IGBT in three-phase rectifier based on five-segment SVPWM

A step-down isolated three-phase IGBT boost PFC rectifier using a novel control algorithm with a novel start-up method

“…For the proposed design, efficiency losses of the inductors (η(loss − L) ) can be calculated as 0.6% using equation (19), with the designed inductor [20] (12 blocks of Magnetics large kool-Mu (00K4741B026), 60 turns with 6x8 = 48 mm2 copper-wire, 150 mm average one-turn length, 60x150 = 9 m total length is, R(W-L) = 3mW).…”

“…Due to square-root relationship between the inductor value (L) and inductor turn number (N), it can be obtained that the wiring resistance of inductor (R(W-L)) is in relation with square root of transformer turn ratio ( √ n ). Because IL is in relation with n(transformer turn ratio), η(loss − L) is in relation with n ( 3/2) from equation (19). So that η (loss-L) can be obtained nearly n ( 3/2) times greater comparing to conventional…”

“…IGBT losses in the six-switch converter circuit (PIGBT) can be estimated by using (21)-(23). A more precise calculation is possible to use the method described in [19]. IGBT losses include the conduction and switching losses.…”

The Analysis of Numerical Simulation About Thermal Management on Frequency Converter

“…Shanbin Wang introduced the heat loss calculation method of IGBT, and analyzed the influence of different modulation methods on the heat loss of IGBT through comparison experiments [5]. The thermal network is often used for thermal management analysis of power electronic equipment, Daohui Li introduced the generation principle of thermal network and its application to monitor the junction temperature of power devices, and realized co-simulation of thermoelectricity [6].…”