Reliability Evaluation of DC Distribution Power Network

2018 China International Conference on Electricity Distribution (CICED) Pub Date : 2018-09-01 DOI:10.1109/CICED.2018.8592284

Dong Liang, Chaoyun Qin, Shuyuan Wang, Haomin Guo

{"title":"Reliability Evaluation of DC Distribution Power Network","authors":"Dong Liang, Chaoyun Qin, Shuyuan Wang, Haomin Guo","doi":"10.1109/CICED.2018.8592284","DOIUrl":null,"url":null,"abstract":"With the development of urban distribution network, power users' demand for DC distribution system is increasing. In order to study the development prospect of DC system, this paper discusses the reliability of DC distribution network. First, this paper introduces the characteristics of DC distribution system, and summarizes the main structures. Then, the reliability assessment model of power electronic equipment is established, and the reliability parameters of redundant components are calculated by using k/n(G) and Markov model. Moreover, the reliability index of DC distribution network is calculated based on the minimum cut set method. Finally, the IEEE RBTS Bus5 system is modified to calculate and compare the reliability indices of different distribution networks. The results show that the reliability of DC distribution network is limited by the reliability of equipment, and the reliability of DC system can be improved with the increasing proportion of DC load. In the future, with the improvement of power electronic equipment and the increase of DC load, the reliability of DC distribution network will be better than that of AC distribution network.","PeriodicalId":142885,"journal":{"name":"2018 China International Conference on Electricity Distribution (CICED)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"14","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 China International Conference on Electricity Distribution (CICED)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CICED.2018.8592284","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 14

Abstract

With the development of urban distribution network, power users' demand for DC distribution system is increasing. In order to study the development prospect of DC system, this paper discusses the reliability of DC distribution network. First, this paper introduces the characteristics of DC distribution system, and summarizes the main structures. Then, the reliability assessment model of power electronic equipment is established, and the reliability parameters of redundant components are calculated by using k/n(G) and Markov model. Moreover, the reliability index of DC distribution network is calculated based on the minimum cut set method. Finally, the IEEE RBTS Bus5 system is modified to calculate and compare the reliability indices of different distribution networks. The results show that the reliability of DC distribution network is limited by the reliability of equipment, and the reliability of DC system can be improved with the increasing proportion of DC load. In the future, with the improvement of power electronic equipment and the increase of DC load, the reliability of DC distribution network will be better than that of AC distribution network.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

直流配电网可靠性评估

随着城市配电网的发展，电力用户对直流配电系统的需求越来越大。为了研究直流系统的发展前景，本文对直流配电网的可靠性问题进行了探讨。本文首先介绍了直流配电系统的特点，总结了直流配电系统的主要结构。然后，建立电力电子设备可靠性评估模型，利用k/n(G)和马尔可夫模型计算冗余部件的可靠性参数;在此基础上，利用最小割集法计算了直流配电网的可靠性指标。最后，对IEEE RBTS Bus5系统进行了改进，计算并比较了不同配电网的可靠性指标。结果表明，直流配电网的可靠性受到设备可靠性的限制，随着直流负荷比例的增加，直流系统的可靠性可以得到提高。未来，随着电力电子设备的改进和直流负荷的增加，直流配电网的可靠性将优于交流配电网。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

2018 China International Conference on Electricity Distribution (CICED)

自引率

0.00%

发文量

期刊最新文献

A Deep Game Bidding Model and Practice of Electricity Market Research on Fault Location for UHV Half-wavelength Transmission Lines Comprehensive Evaluation of Insulation Performance of DC XLPE Cables Improvement of Distribution System Maintenance Plan Based on Risk Level The Application of Transient Calculation for Loop Closing of Distribution Network Based on The DSA