Analytical Expression for DC Link Capacitor Current in a Cascaded H-Bridge Multi-Level Active Front-End Converter

Malik, Muhammad Shehroz; Kimball, Jonathan W.

doi:10.1109/apec42165.2021.9487078

Analytical Expression for DC Link Capacitor Current in a Cascaded H-Bridge Multi-Level Active Front-End Converter

Conference · Mon Jun 14 00:00:00 EDT 2021 · 2021 IEEE Applied Power Electronics Conference and Exposition (APEC)

DOI:https://doi.org/10.1109/apec42165.2021.9487078· OSTI ID:1991841

Malik, Muhammad Shehroz ^[1]; Kimball, Jonathan W.

Missouri University of Science and Technology

Medium-voltage grid-tied systems often use a cascaded H-bridge multi-level active front-end. In this converter, dc link bus capacitors play an important role in stabilizing the converter and enabling both active and reactive power injections. The present work provides analytical expressions for the capacitor current, which are essential for optimizing system design (especially capacitor size vs. lifetime). Then, the expression is incorporated into the grid connected bidirectional power system model. Consequently, this work contributes to the guiding principles to choose accurate dc link capacitor ratings against grid-side power delivery requirements. The analytical results have been validated with detailed simulations and hardware results.

Research Organization:: Missouri University of Science and Technology

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Vehicle Technologies Office (VTO)

DOE Contract Number:: EE0008449

OSTI ID:: 1991841

Journal Information:: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC), Journal Name: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC)

Country of Publication:: United States

Language:: English

References (11)

Analysis of the DC-Link Capacitor Current of Power Cells in Cascaded H-Bridge Inverters for High-Voltage Drives Sun, Le; Zhenxing, Wu; Weiming, Ma IEEE Transactions on Power Electronics, Vol. 29, Issue 12 https://doi.org/10.1109/TPEL.2014.2302081	journal	December 2014
A comprehensive analysis of DC-link current for single phase H-bridge inverter under harmonic output currents Wang, Tao; Lu, Shuai 2017 IEEE Energy Conversion Congress and Exposition (ECCE) https://doi.org/10.1109/ECCE.2017.8095846	conference	October 2017
Analytical Determination of the Capacitor Voltage Balancing Dynamics for Three-Phase Flying Capacitor Converters McGrath, B. P.; Holmes, D. G. IEEE Transactions on Industry Applications, Vol. 45, Issue 4 https://doi.org/10.1109/TIA.2009.2023480	journal	July 2009
Reliability of Capacitors for DC-Link Applications in Power Electronic Converters—An Overview Wang, Huai; Blaabjerg, Frede IEEE Transactions on Industry Applications, Vol. 50, Issue 5 https://doi.org/10.1109/TIA.2014.2308357	journal	September 2014
A General Analytical Method for Calculating Inverter DC-Link Current Harmonics McGrath, B. P.; Holmes, D. G. IEEE Transactions on Industry Applications, Vol. 45, Issue 5 https://doi.org/10.1109/TIA.2009.2027556	journal	January 2009
Determination of DC link harmonics in dual active bridge DC-DC converters using frequency domain analysis Riedel, J.; Holmes, D. G.; McGrath, B. P. 2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia) https://doi.org/10.1109/IPEMC.2016.7512264	conference	May 2016
DC link harmonics of three phase voltage source converters influenced by the pulse width modulation strategy-an analysis Bierhoff, M.; Fuchs, F. W. 31st Annual Conference of IEEE Industrial Electronics Society, 2005. IECON 2005. https://doi.org/10.1109/IECON.2005.1568954	conference	January 2005
The Aging Process in Electrical Insulation: A Tutorial Summary G. Alleb, Peter; Tustin, Arnold IEEE Transactions on Electrical Insulation, Vol. EI-7, Issue 3 https://doi.org/10.1109/TEI.1972.299199	journal	September 1972
Analytical calculation of the RMS current stress on the DC link capacitor of voltage DC link PWM converter systems Kolar, J. W. 9th International Conference on Electrical Machines and Drives https://doi.org/10.1049/cp:19990995	conference	January 1999
A method for hotspot temperature estimation of aluminum electrolytic capacitors Jedtberg, Holger; Buticchi, Giampaolo; Liserre, Marco 2017 IEEE Energy Conversion Congress and Exposition (ECCE) https://doi.org/10.1109/ECCE.2017.8096586	conference	October 2017
The DC-link capacitor current in pulsed single-phase H-bridge inverters Renken, F. 2005 European Conference on Power Electronics and Applications https://doi.org/10.1109/EPE.2005.219197	conference	January 2005

Similar Records

Analytical Expression for DC Link Capacitor Current in a Cascaded H-Bridge Multi-Level Active Front-End Converter

Conference · Mon Jun 14 00:00:00 EDT 2021 · 2021 IEEE Applied Power Electronics Conference and Exposition (APEC) · OSTI ID:1991839

Analysis and design of DC-link capacitor in cascaded H-bridge multilevel active front-end converter

Thesis/Dissertation · Tue Dec 14 23:00:00 EST 2021 · OSTI ID:2568436

DC Link Voltage Balancing of the Active Front-End for the Extreme Fast Charging Stations

Conference · Sun Oct 11 00:00:00 EDT 2020 · 2020 IEEE Energy Conversion Congress and Exposition (ECCE) · OSTI ID:1991847

Related Subjects

cascaded H-bridge
carrier-based PWM
dc-link capacitor lifetime
var compensation

Analytical Expression for DC Link Capacitor Current in a Cascaded H-Bridge Multi-Level Active Front-End Converter

Citation Formats

References (11)

Similar Records

Related Subjects