Modeling on Effects of Charging Time and Recombination on Surface Potential Decay Crossover of LDPE

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2016/02/01

タイトル(英語): Modeling on Effects of Charging Time and Recombination on Surface Potential Decay Crossover of LDPE

著者名: Daomin Min (State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University), Shengtao Li (State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering,

著者名(英語): Daomin Min (State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University), Shengtao Li (State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University), Guochang Li (State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University), George Chen (School of Electronics and Computer Science, University of Southampton)

キーワード: charging time，charge transport，recombination，surface potential decay crossover，LDPE

要約(英語): Surface potential decay (SPD) crossover of LDPE (low density polyethylene) is investigated by a dynamic model combining charging, surface charge accumulation, and charge transport processes. The charge continuity and Poisson's equation are solved by a highly stable and fifth order accurate finite difference weighted essentially non-oscillatory method and boundary element method, respectively. The simulations are performed at various charging times and various recombination coefficients. The simulation results show that the SPD crossover properties are influenced by charging times and recombination coefficients. The time for the occurrence of SPD crossover decreases with an increase in charging time, whereas it increases with an increase in recombination coefficient. It is demonstrated that the variation of charging times and recombination coefficients changes the distributions of charge densities and electric field in the bulk of LDPE. The differences of the distributions of charge densities and electric field affect the decay rates of surface potentials, which will determine the SPD crossover properties.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.136 No.2 （2016） 特集：2014 International Symposium on Electrical Insulating Materials

本誌掲載ページ: 86-92 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/136/2/136_86/_article/-char/ja/