A Non-invasive Online Evaluation Method for Core Temperature of Aluminium Electrolytic Capacitors

Bo Yao; Guorong Zhu; Qian Wang; Haoran Wang; Huai Wang

doi:10.1109/TPEL.2023.3339343

A Non-invasive Online Evaluation Method for Core Temperature of Aluminium Electrolytic Capacitors

Bo Yao, Guorong Zhu, Qian Wang, Haoran Wang, Huai Wang

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

4 Citationer (Scopus)

59 Downloads (Pure)

Abstract

This letter proposes a non-intrusive online estimation method for the core temperature of aluminum electrolytic capacitors (AECs). Based on the linear capacitance-temperature relationship in AECs, the core temperature is estimated by easily measured changes in case temperature. An algorithm for online obtaining and updating capacitance-temperature coefficients is given to realize real-time evaluation of the core temperature for AECs. Experiments verify the feasibility and accuracy of the proposed method. The estimated core temperature can be further used as an input for capacitor lifetime evaluation and safe operation threshold.

Originalsprog	Engelsk
Artikelnummer	10342790
Tidsskrift	IEEE Transactions on Power Electronics
Vol/bind	39
Udgave nummer	3
Sider (fra-til)	2922-2926
Antal sider	5
ISSN	0885-8993
DOI	https://doi.org/10.1109/TPEL.2023.3339343
Status	Udgivet - 1 mar. 2024

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Publisher Copyright:
IEEE

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10.1109/TPEL.2023.3339343

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title = "A Non-invasive Online Evaluation Method for Core Temperature of Aluminium Electrolytic Capacitors",

abstract = "This letter proposes a non-intrusive online estimation method for the core temperature of aluminum electrolytic capacitors (AECs). Based on the linear capacitance-temperature relationship in AECs, the core temperature is estimated by easily measured changes in case temperature. An algorithm for online obtaining and updating capacitance-temperature coefficients is given to realize real-time evaluation of the core temperature for AECs. Experiments verify the feasibility and accuracy of the proposed method. The estimated core temperature can be further used as an input for capacitor lifetime evaluation and safe operation threshold.",

keywords = "Capacitors, Electrolytes, Estimation, Real-time systems, Steady-state, Temperature measurement, Temperature sensors, noninvasive, core temperature estimation, Aluminum electrolytic capacitors (AECs)",

author = "Bo Yao and Guorong Zhu and Qian Wang and Haoran Wang and Huai Wang",

note = "Publisher Copyright: IEEE",

year = "2024",

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doi = "10.1109/TPEL.2023.3339343",

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T1 - A Non-invasive Online Evaluation Method for Core Temperature of Aluminium Electrolytic Capacitors

AU - Yao, Bo

AU - Zhu, Guorong

AU - Wang, Qian

AU - Wang, Haoran

AU - Wang, Huai

N1 - Publisher Copyright: IEEE

PY - 2024/3/1

Y1 - 2024/3/1

N2 - This letter proposes a non-intrusive online estimation method for the core temperature of aluminum electrolytic capacitors (AECs). Based on the linear capacitance-temperature relationship in AECs, the core temperature is estimated by easily measured changes in case temperature. An algorithm for online obtaining and updating capacitance-temperature coefficients is given to realize real-time evaluation of the core temperature for AECs. Experiments verify the feasibility and accuracy of the proposed method. The estimated core temperature can be further used as an input for capacitor lifetime evaluation and safe operation threshold.

AB - This letter proposes a non-intrusive online estimation method for the core temperature of aluminum electrolytic capacitors (AECs). Based on the linear capacitance-temperature relationship in AECs, the core temperature is estimated by easily measured changes in case temperature. An algorithm for online obtaining and updating capacitance-temperature coefficients is given to realize real-time evaluation of the core temperature for AECs. Experiments verify the feasibility and accuracy of the proposed method. The estimated core temperature can be further used as an input for capacitor lifetime evaluation and safe operation threshold.

KW - Capacitors

KW - Electrolytes

KW - Estimation

KW - Real-time systems

KW - Steady-state

KW - Temperature measurement

KW - Temperature sensors

KW - noninvasive

KW - core temperature estimation

KW - Aluminum electrolytic capacitors (AECs)

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DO - 10.1109/TPEL.2023.3339343

M3 - Journal article

AN - SCOPUS:85179787744

SN - 0885-8993

VL - 39

SP - 2922

EP - 2926

JO - IEEE Transactions on Power Electronics

JF - IEEE Transactions on Power Electronics

IS - 3

M1 - 10342790

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A Non-invasive Online Evaluation Method for Core Temperature of Aluminium Electrolytic Capacitors

Abstract

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