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DC Field | Value | Language |
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dc.contributor.author | Pu, Xing-Si | - |
dc.contributor.author | Nguyễn, Thanh Hải | - |
dc.contributor.author | Lee, Dong-Choon | - |
dc.contributor.author | Kim, Jang-Mok | - |
dc.contributor.author | Lee, Kyo-Beum | - |
dc.date.accessioned | 2018-11-21T11:41:46Z | - |
dc.date.available | 2018-11-21T11:41:46Z | - |
dc.date.issued | 2013 | - |
dc.identifier.uri | http://localhost:8080//jspui/handle/123456789/5308 | - |
dc.description.abstract | In this paper, a novel scheme for the estimation of the equivalent series resistance (ESR) of the dc-link electrolytic capacitor in three-phase ac/dc pulsewidth-modulation converters is proposed for condition monitoring. First, a controlled ac current component is injected into the input. Then, it induces ac voltage ripples on the dc output. By manipulating these ac voltage and current components with digital filters, the value of the ESR can be calculated, where the recursive least squares algorithm is used for reliable estimation results. In addition, the value of the ESR is corrected by considering the temperature effect, for which a simple temperature-sensing circuit has been designed. The simulation and experimental results show that the estimation error of the ESR is within a reasonable range, thereby enabling the determination of the appropriate time for the replacement of the capacitor. | vi_VN |
dc.language.iso | en | vi_VN |
dc.relation.ispartofseries | Industrial Electronics, IEEE Transactions on;60 .- p.4118-4127 | - |
dc.subject | AC/DC pulsewidth-modulation (PWM) convert-ers | vi_VN |
dc.subject | Current measurement | vi_VN |
dc.subject | Dc-link capacitor | vi_VN |
dc.subject | Equivalent series re-sistance (ESR) | vi_VN |
dc.subject | Estimation | vi_VN |
dc.subject | Fault diagnosis | vi_VN |
dc.subject | Monitoring | vi_VN |
dc.subject | recursive least squares (RLS) | vi_VN |
dc.subject | Temperature sensing | vi_VN |
dc.title | Fault Diagnosis of DC-Link Capacitors in Three-Phase AC/DC PWM Converters by Online Estimation of Equivalent Series Resistance | vi_VN |
dc.type | Article | vi_VN |
Appears in Collections: | Tạp chí quốc tế |
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File | Description | Size | Format | |
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_file_ | 2.86 MB | Adobe PDF | View/Open | |
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