Comparison of Space Charge Evolution between Polypropylene and Cross-linked Polyethylene under Polarity Reversal Voltage

被引：0

作者：

Teng, Chenyuan ^{[1
,2
]}

Zhang, Ling ^{[1
]}

Zhou, Yuanxiang ^{[1
,3
]}

Lu, Zekai ^{[1
]}

Sha, Yanchao ^{[4
]}

机构：

[1] Tsinghua Univ, Dept Elect Engn, State Key Lab Control & Simulat Power Syst & Gene, Beijing 100084, Peoples R China

[2] Wuhan Univ, Sch Elect Engn, Wuhan 430072, Peoples R China

[3] Xinjiang Univ, Sch Elect Engn, Urumqi 830047, Peoples R China

[4] Global Energy Interconnect Dev & Cooperat Org, Beijing 100031, Peoples R China

来源：

2018 12TH INTERNATIONAL CONFERENCE ON THE PROPERTIES AND APPLICATIONS OF DIELECTRIC MATERIALS (ICPADM 2018) | 2018年

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

DC cable; XLPE; iPP; space charge; polarity reversal voltage;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Isotactic Polypropylene (iPP) is a kind of potential HVDC power cable insulation material for its green property and excellent electrical performance. Dynamic evolution of space charge under polarity reversal voltage is harmful to long term operation of HVDC power cables. The experiment of space charge evolution in XLPE and iPP films during external voltage polarity inverse (from +50 kV/mm to -50 kV/mm) at room temperature was conducted. The results show that the polarity of space charge in the bulk of both XLPE and iPP samples is mainly negative during the whole polarization process. Hetero-charge near the anode was observed in both samples after the poling of positive and negative voltage. iPP samples also present mirror image effect and show a better space charge performance in the the amount of residual space charge and electric field distortion. This study could provide a deeper insight of space charge behavior under polarity reversal voltage in iPP materials.

引用

页码：94 / 97

页数：4

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