| 高压电力电缆增加段长关键技术研究展望及应用 |
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| 作者姓名： | 谭笑 陈杰 李陈莹 曹京荥 胡丽斌 朱孟周 张云霄 |
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| 作者单位： | 国网GIS设备运维检修技术实验室(国网江苏省电力有限公司电力科学研究院);清华大学电机工程与应用电子技术系 |
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| 基金项目： | 国家电网有限公司科技项目(J2018028);国家自然科学基金资助项目(51377089) |
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| 摘 要： | 随着城市化发展进程加快,大容量、长距离、大截面电力电缆线路在各大城市输电网络中的应用规模逐年增加。而目前传统电缆设计段长有限,单位长度内电缆接头数量相对较多,导致工程投资增加的同时,电力电缆线路运行故障概率也随之上升。文中从大长段电力电缆设计、交接试验、运维等环节出发,针对大长段电缆感应电压计算、电压限制器要求、局放信号衰减等影响因素,对高压电力电缆增加段长关键技术进行可行性分析,同时以国内首次敷设220 kV 1450 m的电缆应用工程为例,为今后大长段电缆工程实际应用提供理论依据和相关数据。
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| 关 键 词： | 电力电缆 增加段长 感应电压 局放信号衰减 |
| 收稿时间： | 2018/1/23 0:00:00 |
| 修稿时间： | 2018/2/27 0:00:00 |
Research Prospect and Application of Technology to Increase the Length of High Voltage Power Line |
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| Authors: | TAN Xiao CHEN Jie LI Chenying CAO Jingying HU Libin ZHU Mengzhou ZHANG Yunxiao |
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| Affiliation: | State Grid GIS Equipment Maintenance and Repair Technology Laboratory(State Grid Jiangsu Electric Power Co., Ltd. Research Institute), Nanjing 211103, China; Tsinghua University, Deparment of Electrical Engineering, Beijing 100084, China |
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| Abstract: | With the acceleration of the urbanization development process,the application scale of large capacity,long distance and large cross section power cable lines in the transmission network of major cities is on the rise.Due to the limited length of the traditional cable design,the number of cable connectors per unit length is relatively large,which leads to the increase of the investment of the project,and the probability of the operation of the power cable line also increases.This essay will start its research from the large-length power cable design,transfer test,operation and maintenance and other aspects of the study,for large long-term cable induced voltage,partial signal attenuation and other factors,high-voltage power cable to increase the key technology feasibility analysis.The demonstration project of 220 kV Qiuteng-Gaowang line provides the theoretical basis and relevant data for the practical application of cable engineering in the future. |
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| Keywords: | power cable increasing segment length induced voltage partial discharge signal attenuation |
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