TY - JOUR
T1 - On the Practical Design of a Two-Terminal Active Capacitor
AU - Wang, Huai
AU - Wang, Haoran
AU - Liu, Yang
N1 - Funding Information:
Manuscript received October 24, 2018; revised December 7, 2018; accepted January 5, 2019. Date of publication January 15, 2019; date of current version June 28, 2019. This work was supported in part by the Innovation Fund Denmark through the Advanced Power Electronic Technology and Tools Project, and in part by the Funds for International Cooperation and Exchange of Dongguan, Guangdong Province, China under Grant 2016508102005. Recommended for publication by Associate Editor K. Ngo. This paper was presented in part at the IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives, Tinos, Greece, August/September 2017, and the 18th IEEE Workshop on Control and Modeling for Power Electronics, Stanford, CA, USA, July 2017. (Corresponding author: Huai Wang.) H. Wang and H. Wang are with the Department of Energy Technology, Aalborg University, Aalborg 9220, Denmark (e-mail:, [email protected]; [email protected]).
Publisher Copyright:
© 1986-2012 IEEE.
PY - 2019/10
Y1 - 2019/10
N2 - A two-terminal active capacitor concept has been proposed recently based on an active power electronic circuit with a voltage control method and self-power scheme. It retains the convenience of use as a passive capacitor with two power terminals only without any additional required connections and has the potential to either increase power density or reduce design cost depending on the applications. Based on the previously proof-of-concept study, this paper addresses the design constraints, impedance modeling, and start-up solutions of two-terminal active capacitors. A design method for functionality, efficiency, lifetime, and cost-constraint applications is applied to size the active components and passive elements. A voltage feedforward control scheme is implemented to improve its dynamic response. Two start-up solutions are proposed to overcome the issues brought by the self-power scheme. A case study of an active capacitor for the dc link of a single-phase full-bridge rectifier is presented to demonstrate the theoretical analyses.
AB - A two-terminal active capacitor concept has been proposed recently based on an active power electronic circuit with a voltage control method and self-power scheme. It retains the convenience of use as a passive capacitor with two power terminals only without any additional required connections and has the potential to either increase power density or reduce design cost depending on the applications. Based on the previously proof-of-concept study, this paper addresses the design constraints, impedance modeling, and start-up solutions of two-terminal active capacitors. A design method for functionality, efficiency, lifetime, and cost-constraint applications is applied to size the active components and passive elements. A voltage feedforward control scheme is implemented to improve its dynamic response. Two start-up solutions are proposed to overcome the issues brought by the self-power scheme. A case study of an active capacitor for the dc link of a single-phase full-bridge rectifier is presented to demonstrate the theoretical analyses.
KW - Active circuits
KW - capacitors
KW - power converter
KW - reliability
UR - http://www.scopus.com/inward/record.url?scp=85068665986&partnerID=8YFLogxK
U2 - 10.1109/TPEL.2019.2893156
DO - 10.1109/TPEL.2019.2893156
M3 - Article
AN - SCOPUS:85068665986
SN - 0885-8993
VL - 34
SP - 10006
EP - 10020
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
IS - 10
M1 - 8612976
ER -