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RESEARCH PRODUCT
A new approach to partial discharge detection under DC voltage
Pietro RomanoRoberto CandelaA. ImburgiaGiuseppe Prestisubject
Computer science020209 energyContext (language use)DC measurement02 engineering and technology01 natural sciencesElectric power systemReliability (semiconductor)0103 physical sciencesHVAC0202 electrical engineering electronic engineering information engineeringElectrical and Electronic Engineering010302 applied physicsPower transmissiondischargephenomenaHVDCbusiness.industrytesting methodElectronic Optical and Magnetic Materialpattern recognitionElectronic Optical and Magnetic MaterialsReliability engineeringpartial dischargeSettore ING-IND/31 - Elettrotecnicavisual_artPattern recognition (psychology)Partial dischargeElectronic componentvisual_art.visual_art_mediumbusinessdescription
The continuing development of HVDC power transmission systems presents many problems related to evaluation of the reliability of power system assets [1]-[5]. In this context the identification of insulation defects plays a key role in preventing unexpected failures of electrical components. Partial discharge (PD) measurement is a useful approach to assessing the condition of HV power apparatus and cables. Such measurements are also widely employed for HVAC systems. The inception mechanisms of PD in AC systems are well-known, and measurements are usually performed following the IEC 60270 standard [6]. PD measurements under DC voltage present complexities related to the nature of the phenomenon and the supply conditions [7]. In AC systems phase-resolved-partial-discharge (PRPD) patterns allow assessment of the insulation condition, and provide information on the types of defect present [8]. Such analysis cannot be performed under DC voltage, since each discharge event cannot be related to a phase value. The interpretation of the acquired data therefore requires a different approach.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-07-01 |