Zigbee통신을 이용한 전력변환기기의 DC Bus 커패시터의 온라인 원격 고장진단 시스템On-line Remote Diagnosis System for DC Bus Capacitor of Power Converters Using Zigbee Communication
- Other Titles
- On-line Remote Diagnosis System for DC Bus Capacitor of Power Converters Using Zigbee Communication
- Authors
- 정완섭; 손진근
- Issue Date
- 2015
- Publisher
- 대한전기학회
- Keywords
- DC electrolytic capacitor; Equivalent series resistance(ESR); Power converters; Remote diagnosis monitoring system; Zigbee communication
- Citation
- 전기학회 논문지 P권, v.64, no.1, pp.29 - 34
- Journal Title
- 전기학회 논문지 P권
- Volume
- 64
- Number
- 1
- Start Page
- 29
- End Page
- 34
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/11688
- ISSN
- 1229-800x
- Abstract
- DC bus electrolytic capacitors are used in variety of equipments as smoothing element of the powerconverters because it has high capacitance for its size and low price. It is responsible for frequent breakdowns of manystatic converters and inverter drive systems. Therefore it is important to diagnosis monitoring the condition of anelectrolytic capacitor in real-time to predict the failure of power converter. In this paper, the on-line remote diagnosismonitoring system for DC BUS electrolytic capacitors of power converter using low-cost type Zigbee communicationmodules is developed. To estimate the health status of the capacitor, the equivalent series resistor(ESR) of the componenthas to be determined. The capacitor ESR is estimated by using RMS computation using AC coupling method of DC linkripple voltage/current. The Zigbee communication-based experimental results show that the proposed remote DC capacitordiagnosis monitoring system can be applied to DC/DC converter and UPS successfully.
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