TY - JOUR
T1 - Simplified power loss model for aluminum electrolytic capacitors in single-phase inverters
AU - Liu, Yi
AU - Wang, Huai
AU - Huang, Meng
AU - Zha, Xiaoming
AU - Zhu, Guorong
N1 - Funding Information:
Manuscript received July 14, 2019; revised August 28, 2019; accepted September 22, 2019. Date of publication September 25, 2019; date of current version February 11, 2020. This work was supported by the National Natural Science Foundation of China under Grants 51637007, 51777146, and 51977163. (Corresponding author: Meng Huang.) Y. Liu, M. Huang, and X. Zha are with the School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China (e-mail: aaronlau@ whu.edu.cn; meng.huang@whu.edu.cn; xmzha@whu.edu.cn).
Publisher Copyright:
© 1986-2012 IEEE.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/5
Y1 - 2020/5
N2 - This letter proposes a simple yet practical power loss model of dc-link capacitors used in single-phase inverters. The low-frequency and high-frequency capacitor ripple current components make the existing power loss models either oversimplified by ignoring the high-frequency effects or overcomplicated with detailed analytical solutions. The proposed simplified model can achieve negligible errors with respect to the detailed model without the need of double fast Fourier transform. Different modulations and topologies are analyzed to show the applicability of the proposed method. A 2-kW single-phase inverter case study is presented to demonstrate the accuracy and ease of use of the proposed model.
AB - This letter proposes a simple yet practical power loss model of dc-link capacitors used in single-phase inverters. The low-frequency and high-frequency capacitor ripple current components make the existing power loss models either oversimplified by ignoring the high-frequency effects or overcomplicated with detailed analytical solutions. The proposed simplified model can achieve negligible errors with respect to the detailed model without the need of double fast Fourier transform. Different modulations and topologies are analyzed to show the applicability of the proposed method. A 2-kW single-phase inverter case study is presented to demonstrate the accuracy and ease of use of the proposed model.
KW - Aluminum electrolytic capacitor (Al E-Cap)
KW - simplified power loss model
KW - single-phase inverter
UR - http://www.scopus.com/inward/record.url?scp=85081125145&partnerID=8YFLogxK
U2 - 10.1109/TPEL.2019.2943883
DO - 10.1109/TPEL.2019.2943883
M3 - Journal article
AN - SCOPUS:85081125145
SN - 0885-8993
VL - 35
SP - 4452
EP - 4456
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
IS - 5
M1 - 8850014
ER -