Deterioration Monitoring of DC-Link Capacitors in AC Machine Drives by Current Injection

Title
Deterioration Monitoring of DC-Link Capacitors in AC Machine Drives by Current Injection
Author(s)
이동춘누옌탄하이
Keywords
ALUMINUM-ELECTROLYTIC-CAPACITORS; FAULT-DIAGNOSIS; PWM CONVERTERS; MOTOR-DRIVES; RESISTANCE; SYSTEM
Issue Date
201503
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE TRANSACTIONS ON POWER ELECTRONICS, v.30, no.3, pp.1126 - 1130
Abstract
This letter proposes a novel condition monitoring scheme of dc-link capacitors in PWM inverter-fed induction machine drives with front-end diode rectifiers, which is based on the online capacitance estimation scheme. While the motor is operating in the regenerative mode for the estimation process, a regulated ac component is injected into the stator winding, which causes a dc-link voltage ripple at the same frequency. From the ac components of the dc-link voltage and current, the capacitance is estimated with a recursive least squares algorithm. With this method, experimental results have shown that the estimation error of the capacitance is less than 1%, from which the deterioration condition of the capacitors can be diagnosed reliably.
URI
http://hdl.handle.net/YU.REPOSITORY/33071http://dx.doi.org/10.1109/TPEL.2014.2339374
ISSN
0885-8993
Appears in Collections:
공과대학 > 전기공학과 > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE