LC Type dv/dt Filter Design with Clamping Diodes for SiC MOSFET-based Motor Drives

Prasanna, CS and Iyer, VM (2024) LC Type dv/dt Filter Design with Clamping Diodes for SiC MOSFET-based Motor Drives. In: 2024 IEEE International Communications Energy Conference, INTELEC 2024, 4 August 2024 through 7 August 2024, Bengaluru.

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Abstract

Ultrafast semiconductors such as Silicon Carbide (SiC) and Gallium Nitride (GaN) have enabled the development of highly efficient and compact power electronic systems. These devices have very short rise and fall times, leading to very high rates of change of voltage (dv / dt), which can cause overvoltages in motor drive applications with long cables. This can result in winding insulation failure, bearing failure, increased common mode currents, and Electromagnetic Interference (EMI). Hence, mitigating the harmful effects of switching dv / dt is crucial. This paper presents an improved analysis and design procedure for an LC-type dv / dt filter with a diode clamp at the inverter output to attenuate overvoltages at the motor terminals. The proposed design approach aims to simultaneously minimize the size of the filter inductors as well as the filter losses. The filter's effectiveness is confirmed through switching circuit simulations. A hardware prototype of a 2-level Voltage Source Inverter (VSI) along with an LC-type dv / dt filter with clamping diodes is constructed in the laboratory. Experimental results are presented to showcase the effectiveness of the proposed method. © 2024 IEEE.

Item Type:	Conference Paper
Publication:	INTELEC, International Telecommunications Energy Conference (Proceedings)
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Clamping devices; Computer debugging; Electric filters; Electric windings; Integrated circuit design; MOS devices; MOSFET devices; PIN diodes; Power semiconductor diodes; Semiconducting gallium compounds; Semiconducting silicon compounds; Silicon nitride; Single electron transistors; Terminals (electric); Thyristors; Traction motors, Clamping diode; Diode clamps; Dv/dt filter; Electromagnetics; Filter designs; LC with diode clamp; Long cables; NEMA standard; Over-voltages; Silicon carbide MOSFETs, Gallium nitride
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	09 Nov 2024 21:27
Last Modified:	09 Nov 2024 21:27
URI:	http://eprints.iisc.ac.in/id/eprint/86716

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