Silicon rectifier high frequency inverter

Can inverters reduce EMI noise?

This paper proposes an adaptive switching frequency pulse width modulation (ASFPWM) method that accounts for the nonlinear dead-time effect of inverters to mitigate EMI noise. Utilizing the Second-Order Generalized Integral (SOGI), the sum of the three-phase current harmonics is extracted.

Why is switching frequency important in inverter design?

The switching frequency is a pivotal consideration during the design phase of inverters, significantly impacting both efficiency and EMI . SiC devices exhibit superior electron saturation drift velocity and reduced on-resistance when compared to their conventional silicon-based counterparts .

Can switching frequency adaptive law reduce dead-time effect of inverters?

The dead-time effect of inverters is dynamically compensated in real-time based on the calculated switching frequency. A switching frequency adaptive law is proposed to reduce the conducted EMI to meet current harmonic amplitude requirements. The remainder of this paper is organized as follows.

How can silicon carbide technology improve the efficiency of a converter?

As shown in , Silicon Carbide technologies can improve the efficiency of the converter: by using SiC Schottky diodes, 10% of the semiconductor losses could be saved in an NCD circuit running at 48kHz. With the emerging SiC MOSFET technology, the flexibility in terms of device selection increases.

Can a 720vdc inverter be connected to a 50Hz EMI filter?

Such a connection scheme would lead to different stress levels on the output and EMI filters. All inverter implementations were supplied with a constant input voltage of 720VDC and operated in voltage control mode to generate 230VRMS and 50Hz on the output.

Which 650V diode is used in a hybrid inverter?

As reported in Table 1, two different variants of this inverter type are considered that only differ in the 650V diode co-packed with the IGBT: the variant referred to as Hybrid-1 uses an ultrafast 650V Silicon Emitter controlled diode, the variant referred to as Hybrid- 2 uses a 650V Silicon Carbide Schottky barrier diode. IGBT-NCD.