A study on the effect of DC-link decoupling capacitors

The main function of the DC-link decoupling capacitors, integrated between the voltage source and the power devices, is to suppress the effect of the parasitic inductors and minimize the voltage overshoot. Besides, decoupling capacitors can also affect the electromagnetic interference frequency spectra. In this paper, the elïects of decoupling capacitors are explained from the time-domain and the frequency-domain. The decoupling capacitance selection strategy is proposed according to the analysis.

[1]  J. Roudet,et al.  MOSFET switching behaviour under influence of PCB stray inductance , 1996, IAS '96. Conference Record of the 1996 IEEE Industry Applications Conference Thirty-First IAS Annual Meeting.

[2]  Dushan Boroyevich,et al.  Extraction of parasitics within wire-bond IGBT modules , 1998, APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition.

[3]  Prasad Enjeti,et al.  An evaluation of the DC-link capacitor heating in adjustable speed drive systems with different utility interface options , 1999, APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285).

[4]  H. Shah,et al.  Analytical modeling and experimental evaluation of interconnect parasitic inductance on MOSFET switching characteristics , 2004, Nineteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2004. APEC '04..

[5]  M.G. Kong,et al.  Electrically induced heat dissipation in metallized film capacitors , 2004, IEEE Transactions on Dielectrics and Electrical Insulation.

[6]  Johann W. Kolar,et al.  Analytical calculation of the RMS current stress on the DC-link capacitor of voltage-PWM converter systems , 2006 .

[7]  D. Boroyevich,et al.  EMI Suppression in Voltage Source Converters by Utilizing dc-link Decoupling Capacitors , 2007 .

[8]  R. Burgos,et al.  Design considerations of a fast 0-Ω gate-drive circuit for 1.2 kV SiC JFET devices in phase-leg configuration , 2009, 2009 IEEE Energy Conversion Congress and Exposition.

[9]  M. I. Montrose.  How decoupling capacitors may cause radiated EMI , 2011, 2011 Electromagnetic Compatibility Symposium - Perth.

[10]  Dawei Xiang,et al.  An Industry-Based Survey of Reliability in Power Electronic Converters , 2011, IEEE Transactions on Industry Applications.

[11]  Zaifei Luo,et al.  Influence of heat treatment on properties of high-current metallized film capacitors , 2012, 2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC).

[12]  Till Huesgen,et al.  Thermal resistance of snap-in type aluminum electrolytic capacitor attached to heat sink , 2012, 2012 IEEE Energy Conversion Congress and Exposition (ECCE).

[13]  D. Pitica,et al.  Power integrity design tips to minimize the effects of mounting inductance of decoupling capacitors , 2012, 2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM).

[14]  Pavel Mach,et al.  Ageing of self-healing polypropylene film capacitors by non-sinusoidal voltage , 2014, Proceedings of the 2014 37th International Spring Seminar on Electronics Technology.

[15]  Ramtin Hadidi,et al.  Snubber circuit design considerations for medium-voltage solid-state switches for high-power inverter-based testing applications: A case study , 2016, 2016 IEEE 7th International Symposium on Power Electronics for Distributed Generation Systems (PEDG).

[16]  Chunyi Zhu,et al.  Influence of RCD snubber circuit on the commutation process of high-power three-level inverter with 4.5kV IEGTs , 2016, 2016 19th International Conference on Electrical Machines and Systems (ICEMS).