Simulation Study on Positive Corona Discharge of Receptors on Rotating Wind Turbine Blade Tips under Thundercloud Electric Fields

Lu Qu, Yu Wang, Gang Liu, Minchuan Liao, Hansheng Cai, Tao Zhang, Yeqiang Deng and Xishan Wen
Additional contact information
Lu Qu: Electric Power Research Institute, China Southern Power Grid, Guangzhou 510080, China
Yu Wang: School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China
Gang Liu: Electric Power Research Institute, China Southern Power Grid, Guangzhou 510080, China
Minchuan Liao: Electric Power Research Institute, China Southern Power Grid, Guangzhou 510080, China
Hansheng Cai: Electric Power Research Institute, China Southern Power Grid, Guangzhou 510080, China
Tao Zhang: School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China
Yeqiang Deng: School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China
Xishan Wen: School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China

Energies, 2019, vol. 12, issue 24, 1-12

Abstract: Recent lightning simulation experiments have not simulated the influence of blade rotation in the long term after corona inception. This study uses a finite element method and considers the adhesion and collision processes of positive ions, aerosol ions, and neutral particles to establish a two-dimensional positive corona discharge model based on a multicomponent diffusion transport equation. The microscopic distribution of these three types of particles and the influence mechanism of charged particles’ migration under electric fields and wind were studied. The results show that ion migration is affected by both electric field and wind speed. The higher the wind speed, the larger is the deviation amplitude of charged particles along the direction of wind. With an increase in wind speed, the corona current on the receptor surface gradually increases. When the wind speed is 30 m/s, the corona current peak value increases by almost six times when compared with that when no wind is present. From this, it can be inferred that blade rotation reduces the concentration of positive ion in the receptor area, thereby facilitating electron avalanche and streamer-leader conversion.

Keywords: blade rotation; corona discharge model; finite element approach; receptor (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.mdpi.com/1996-1073/12/24/4696/pdf (application/pdf)
https://www.mdpi.com/1996-1073/12/24/4696/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:12:y:2019:i:24:p:4696-:d:296081

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().