...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Electric power systems research >Dynamic thermal analysis for underground cables under continuously fluctuant load considering time-varying van wormer coefficient
【24h】

Dynamic thermal analysis for underground cables under continuously fluctuant load considering time-varying van wormer coefficient

机译：考虑时变纸虫系数的连续波动负荷下的地下电缆动态热分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

With the extensive integration of renewable energy sources in power system, the fluctuation characteristics of transmission and distribution network load have been further strengthened. However, for the power cable widely used in power system, its dynamic thermal behavior under continuously fluctuant load cannot be well modeled by the IEC method. It has not been sufficiently addressed in the literatures either. In this paper, the variation of the time-dependent Van Wormer coefficient and the error cumulative phenomenon of adopting the constant Van Wormer coefficient in conventional methods (including the IEC 60853-2 and the classical thermo-electric equivalent method) under continuously fluctuant cable load are discussed. Moreover, several different modification ways on the lumped thermal model of cable insulation to mitigate the possible error cumulative phenomenon are presented. The superiority of the modified methods compared with the conventional methods is verified by the real cable experiments. The results show that the modified methods can better reflect the cable's real thermal behavior under continuously fluctuant load. The modified methods are instructive for maximizing cable utilization while still ensuring cable reliability, which can be easy to be integrated into the existing realtime cable thermal rating system.
机译：随着可再生能源在电力系统中的广泛集成，传输和分配网络负荷的波动特性得到了进一步加强。然而，对于电力系统广泛使用的电力电缆，其在连续波动负载下的动态热行为不能通过IEC方法很好地建模。它也没有在文献中得到充分解决。在本文中，在连续波动的电缆负载下，在连续波动的电缆负载下采用常规方法（包括IEC 60853-2和经典热电等效方法的恒定范毒器系数的时间依赖范围损伤系数和误差累积现象的变化讨论过。此外，提出了几种不同的电缆绝缘热模型的不同修改方式，以减轻可能的误差累积现象。与常规方法相比的改性方法的优越性通过真实的电缆实验验证。结果表明，改进的方法可以更好地反映电缆在连续波动负载下的实际热行为。改进的方法对于最大化电缆利用率，同时仍然可以确保电缆可靠性，这可以易于集成到现有的实时电缆热额定值系统中。

著录项

  • 来源
    《Electric power systems research》 |2021年第10期|107395.1-107395.10|共10页
  • 作者

    Wang Pengyu; Kang Longyun; Xu Zhifeng; Zhou Wenqing; Bao Shuzhen; Wu Zhiheng; Hao Yanpeng; Liu Gang;

  • 作者单位

    South China Univ Technol Sch Elect Power Engn Guangzhou 510641 Peoples R China;

    South China Univ Technol Sch Elect Power Engn Guangzhou 510641 Peoples R China;

    South China Univ Technol Sch Elect Power Engn Guangzhou 510641 Peoples R China;

    South China Univ Technol Sch Elect Power Engn Guangzhou 510641 Peoples R China;

    South China Univ Technol Sch Elect Power Engn Guangzhou 510641 Peoples R China;

    South China Univ Technol Sch Elect Power Engn Guangzhou 510641 Peoples R China;

    South China Univ Technol Sch Elect Power Engn Guangzhou 510641 Peoples R China;

    South China Univ Technol Sch Elect Power Engn Guangzhou 510641 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Power cable; Insulation thermal behaviour; lumped thermal model; Dynamic thermal rating; Continuously fluctuant load;

    机译：电力电缆;绝缘热行为;总热模型;动态热额定值;连续波动负荷;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号