Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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沿海配网新建线路中架空线和电缆间选择的经济性分析

来源:电工电气发布时间:2017-10-19 11:19 浏览次数:9
沿海配网新建线路中架空线和电缆间选择的经济性分析
 
游磊1,王健1,林冬2,刘刚1,张雪莹2
(1 华南理工大学 电力学院,广东 广州 510641;2 广东电网有限责任公司,广东 广州 510600)
 
    摘 要:为兼顾线路初期投资和后期运行成本,从全生命周期成本(LCC) 角度出发,对沿海新建配网线路中架空线和电缆间的选择进行了经济性分析。构建了架空线和电缆的LCC模型,选取某10 kV 配网新建线路为案例,对架空线和电缆的LCC 进行计算和比较,结果发现在同等载流量条件下,架空线和电缆间的选择不能根据传统的仅比较初始投资的方法,而应更关注电缆在电能损耗成本上相对架空线的优势,架空线或电缆间的选择也应视拟建线路所处风区、成本电价和社会折现率等多因素而定,为沿海配网新建线路中架空线和电缆间的选择提供了理论依据。
    关键词:配网新建线路;架空线;电缆;全生命周期成本;风区;电能损耗成本
    中图分类号:TM726.3     文献标识码:B     文章编号:1007-3175(2017)10-0044-04
 
Economic Analysis of Choice Between Overhead Line and Cable in Coastal New Distribution Network Line
 
YOU Lei1, WANG Jian1, LIN Dong2, LIU Gang1, ZHANG Xue-ying2
(1 School of Electric Power, South China University of Technology, Guangzhou 510641, China;
2 Guangdong Power Grid Co., Ltd, Guangzhou 510600, China)
 
    Abstract: In order to take into account the initial investment and the late running cost, this paper made an economic analysis of the choice between the overhead line and the cable in the new distribution network line from the perspective of life cycle cost (LCC). This paper established the LCC models of overhead line and cable, and chose the case of a new 10 kV distribution network line to carry out calculation and comparison for LCC of overhead line and cable. The results show that under the condition of same ampacity, the choice between the overhead line and the cable should not be based on the traditional method of comparing only the initial investment, but rather pay more attention to the advantages of the overhead line in the cost of electric energy loss compared to the cable, and the final choice can’t be generalized and many factors should be considered instead, such as the wind area where the proposed line is located, the cost of electricity and the social discount rate, which provides a theoretical basis for the choice between the overhead line and the cable in coastal new distribution network line.
    Key words: new distribution network line; overhead line; cable; life cycle cost; wind area; cost of electric energy loss
 
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