@article{pulakhandam_bhattacharya_2021, title={System-Level Common-Mode EMI Analysis for Drive Applications Using Unterminated Behavioral EMI Models}, ISSN={["1048-2334"]}, DOI={10.1109/APEC42165.2021.9487202}, abstractNote={As wide-bandgap (WBG) semiconductors continue to establish their superior performance in today’s power electronics industry, it is imperative that they are equipped with electromagnetic interference (EMI) solutions tailored for their performance characteristics. The increased switching frequency and switching speeds in WBG converters facilitates higher power densities but can adversely affect EMI filtering requirements. This study uses Unterminated Behavioral Models (UBM) to estimate the common-mode (CM) emissions of two individual SiC AC drive systems feeding of the same DC bus, i.e. the effective input CM emission of the system. An extraction procedure for calculating the worst-case emission in the CM range is presented, accounting for the asynchronized and independent operation of both drives. The extraction procedure is developed through experimental UBM development and subsequent frequency-domain, MATLAB script analyses. Experimental results to validate both the UBM and combined input CM noise at various operating points are provided along with details of the physical hardware setup used.}, journal={2021 THIRTY-SIXTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC 2021)}, author={Pulakhandam, Harish and Bhattacharya, Subhashish}, year={2021}, pages={2357–2363} }
 @inproceedings{kashani_pulakhandam_bhattacharya_katiraei_kaiser_2017, title={Design considerations and test setup assessment for power hardware in the loop testing}, DOI={10.1109/ias.2017.8101770}, abstractNote={Power Hardware in the Loop (PHIL) simulations have recently been developed as a substitution for traditional methods of testing and analyzing real and physical electric power apparatus, especially power electronic based devices. However, due to some inherent characteristics of the PHIL test setup — such as use of power amplifiers, software/hardware interfaces, and real time simulations — there are certain operating constraints and implementation challenges that need to be considered and incorporated in the design. This work provides an overview of design and implementation of a PHIL platform for electrical power system testing. A frequency-domain stability analysis and a time-domain accuracy assessment of several PHIL test setups using different approaches have been presented. PHIL simulation and experimental results have been provided to demonstrate the effectiveness and functionality of each approach.}, booktitle={2017 ieee industry applications society annual meeting}, author={Kashani, M. G. and Pulakhandam, H. and Bhattacharya, Subhashish and Katiraei, F. and Kaiser, D.}, year={2017} }