高电压技术2018，Vol.44Issue(5)：1692-1698,7.DOI:10.13336/j.1003-6520.hve.20180430039
长距离电力电缆多谐振系统耐压试验方法的优化
Optimization of Multiple Resonance Systems Withstand Voltage Test Method for Long Distance Power Cable
摘要
Abstract
With the rapid development of unban construction and increasing demand of electric power, a growing number of long-distance and large cross-section high-voltage cable lines are used. Traditional single withstand voltage test equipment is unable to meet capacitance of the cable lines for completion acceptance and handover testing. Therefore, we put forward an optimized series-parallel connection method for variable-frequency multi-resonant withstand voltage testbased on concluding the test-methods and criteria of cross-linked polyethylene (XLPE) power cables. Moreover, taking a type of variable-frequency multi-resonant withstand voltage test system for instance, we presented three domestic withstand voltage test cases. The results show that case one with two systems parallel connection, case two with single system and case three with four systems series-parallel connection are the best plans for the three cases of the withstand test. The absolute errors between the calculated value of resonant frequency value and the measured value are 1.13, 0.79, 0.65 Hz, respectively, and the absolute errors between the current calculated value and the actual value are 0.53, 2.20, 1.20 A, respectively. The cases prove that the optimized method of multi-resonant system connection can optimize withstand voltage test schemes for long-distance high-voltage power cable lines with the low error.关键词
长距离电力电缆/耐压试验/多谐振系统/接线方式/品质因数/试验电容/单台试验设备电流Key words
long distance power cable/withstand voltage test/multiple resonance system/connection plan/quality factor/testing capacitance/reactor through-current引用本文复制引用
曹京荥,陈杰,周志成,胡利斌,李陈莹,谭笑..长距离电力电缆多谐振系统耐压试验方法的优化[J].高电压技术,2018,44(5):1692-1698,7.基金项目
国家重点基础研究发展计划(973 计划)(2014CB239501) （973 计划）
国家自然科学基金(51377089).Project supported by National Basic Research Program of China (973 Program) (2014CB239501), National Natural Science Foundation of China (51377089). （51377089）
