Condition monitoring of DC-link electrolytic capacitors in adjustable-speed drives

Kwang Woon Lee; Myungchul Kim; Jangho Yoon; Sang Bin Lee; Ji Yoon Yoo

doi:10.1109/TIA.2008.2002220

Condition monitoring of DC-link electrolytic capacitors in adjustable-speed drives

Kwang Woon Lee, Myungchul Kim, Jangho Yoon, Sang Bin Lee, Ji Yoon Yoo

School of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

123 Citations (Scopus)

Abstract

A new preventive maintenance strategy for the sensorless condition monitoring of inverter dc-link aluminum electrolytic capacitors based on equivalent series resistance (ESR) and capacitance C estimation is proposed. The main concept of the proposed method is to estimate the ESR and C of the capacitor, using the inverter whenever the motor is stopped. The parameters are estimated from the dc-link voltage and stator current measurements available in the inverter with the switched dc-link voltage applied to the motor stator winding. The temperature of the capacitor can also be estimated under thermal equilibrium based on the stator resistance estimate to take the influence of temperature variation into account. An experimental study on a 250-W permanent magnet synchronous motor performed under accelerated capacitor degradation is presented to verify the proposed technique. It is shown that the proposed method provides a reliable and sensitive indication of capacitor aging without additional hardware requirements for reliable, efficient, and safe operation of the inverter and driven process.

Original language	English
Pages (from-to)	1606-1613
Number of pages	8
Journal	IEEE Transactions on Industry Applications
Volume	44
Issue number	5
DOIs	https://doi.org/10.1109/TIA.2008.2002220
Publication status	Published - 2008

Bibliographical note

Funding Information:
Paper IPCSD-07-125, presented at the 2007 Industry Applications Society Annual Meeting, New Orleans, LA, September 23-27, and approved for publication in the IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS by the Industrial Drives Committee of the IEEE Industry Applications Society. Manuscript submitted for review October 31, 2007 and released for publication February 8, 2008. Current version published September 19, 2008. This work was supported by the Korean Government (MOEHRD, Basic Research Promotion Fund) under Korea Research Foundation Grant KRF-2007-313-D00284.

Keywords

Adjustable-speed drive
Aluminum electrolytic capacitor
Capacitance
Condition monitoring
Dc-link capacitor
Diagnostics
Electrolyte
Equivalent series resistance (ESR)
Stator resistance estimation

ASJC Scopus subject areas

Control and Systems Engineering
Industrial and Manufacturing Engineering
Electrical and Electronic Engineering

Access to Document

10.1109/TIA.2008.2002220

Cite this

@article{9377302c1e734f19a5becb3bd71fe492,

title = "Condition monitoring of DC-link electrolytic capacitors in adjustable-speed drives",

abstract = "A new preventive maintenance strategy for the sensorless condition monitoring of inverter dc-link aluminum electrolytic capacitors based on equivalent series resistance (ESR) and capacitance C estimation is proposed. The main concept of the proposed method is to estimate the ESR and C of the capacitor, using the inverter whenever the motor is stopped. The parameters are estimated from the dc-link voltage and stator current measurements available in the inverter with the switched dc-link voltage applied to the motor stator winding. The temperature of the capacitor can also be estimated under thermal equilibrium based on the stator resistance estimate to take the influence of temperature variation into account. An experimental study on a 250-W permanent magnet synchronous motor performed under accelerated capacitor degradation is presented to verify the proposed technique. It is shown that the proposed method provides a reliable and sensitive indication of capacitor aging without additional hardware requirements for reliable, efficient, and safe operation of the inverter and driven process.",

keywords = "Adjustable-speed drive, Aluminum electrolytic capacitor, Capacitance, Condition monitoring, Dc-link capacitor, Diagnostics, Electrolyte, Equivalent series resistance (ESR), Stator resistance estimation",

author = "Lee, {Kwang Woon} and Myungchul Kim and Jangho Yoon and Lee, {Sang Bin} and Yoo, {Ji Yoon}",

note = "Funding Information: Paper IPCSD-07-125, presented at the 2007 Industry Applications Society Annual Meeting, New Orleans, LA, September 23-27, and approved for publication in the IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS by the Industrial Drives Committee of the IEEE Industry Applications Society. Manuscript submitted for review October 31, 2007 and released for publication February 8, 2008. Current version published September 19, 2008. This work was supported by the Korean Government (MOEHRD, Basic Research Promotion Fund) under Korea Research Foundation Grant KRF-2007-313-D00284.",

year = "2008",

doi = "10.1109/TIA.2008.2002220",

language = "English",

volume = "44",

pages = "1606--1613",

journal = "IEEE Transactions on Industry Applications",

issn = "0093-9994",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "5",

}

TY - JOUR

T1 - Condition monitoring of DC-link electrolytic capacitors in adjustable-speed drives

AU - Lee, Kwang Woon

AU - Kim, Myungchul

AU - Yoon, Jangho

AU - Lee, Sang Bin

AU - Yoo, Ji Yoon

N1 - Funding Information: Paper IPCSD-07-125, presented at the 2007 Industry Applications Society Annual Meeting, New Orleans, LA, September 23-27, and approved for publication in the IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS by the Industrial Drives Committee of the IEEE Industry Applications Society. Manuscript submitted for review October 31, 2007 and released for publication February 8, 2008. Current version published September 19, 2008. This work was supported by the Korean Government (MOEHRD, Basic Research Promotion Fund) under Korea Research Foundation Grant KRF-2007-313-D00284.

PY - 2008

Y1 - 2008

N2 - A new preventive maintenance strategy for the sensorless condition monitoring of inverter dc-link aluminum electrolytic capacitors based on equivalent series resistance (ESR) and capacitance C estimation is proposed. The main concept of the proposed method is to estimate the ESR and C of the capacitor, using the inverter whenever the motor is stopped. The parameters are estimated from the dc-link voltage and stator current measurements available in the inverter with the switched dc-link voltage applied to the motor stator winding. The temperature of the capacitor can also be estimated under thermal equilibrium based on the stator resistance estimate to take the influence of temperature variation into account. An experimental study on a 250-W permanent magnet synchronous motor performed under accelerated capacitor degradation is presented to verify the proposed technique. It is shown that the proposed method provides a reliable and sensitive indication of capacitor aging without additional hardware requirements for reliable, efficient, and safe operation of the inverter and driven process.

AB - A new preventive maintenance strategy for the sensorless condition monitoring of inverter dc-link aluminum electrolytic capacitors based on equivalent series resistance (ESR) and capacitance C estimation is proposed. The main concept of the proposed method is to estimate the ESR and C of the capacitor, using the inverter whenever the motor is stopped. The parameters are estimated from the dc-link voltage and stator current measurements available in the inverter with the switched dc-link voltage applied to the motor stator winding. The temperature of the capacitor can also be estimated under thermal equilibrium based on the stator resistance estimate to take the influence of temperature variation into account. An experimental study on a 250-W permanent magnet synchronous motor performed under accelerated capacitor degradation is presented to verify the proposed technique. It is shown that the proposed method provides a reliable and sensitive indication of capacitor aging without additional hardware requirements for reliable, efficient, and safe operation of the inverter and driven process.

KW - Adjustable-speed drive

KW - Aluminum electrolytic capacitor

KW - Capacitance

KW - Condition monitoring

KW - Dc-link capacitor

KW - Diagnostics

KW - Electrolyte

KW - Equivalent series resistance (ESR)

KW - Stator resistance estimation

UR - http://www.scopus.com/inward/record.url?scp=53349109174&partnerID=8YFLogxK

U2 - 10.1109/TIA.2008.2002220

DO - 10.1109/TIA.2008.2002220

M3 - Article

AN - SCOPUS:53349109174

SN - 0093-9994

VL - 44

SP - 1606

EP - 1613

JO - IEEE Transactions on Industry Applications

JF - IEEE Transactions on Industry Applications

IS - 5

ER -

Condition monitoring of DC-link electrolytic capacitors in adjustable-speed drives

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this