特高压变电站分区供电能力分析

1000kV电网和特高压直流需要依靠500kV电网进行有效的承接和分散。以1000kV和500kV母线的短路电流限制为约束条件,分别针对特高压主变独立和互联供电分区的情况,分析特高压主变分区供电能力。首先分析1000kV/500kV典型分区结构所具备的供电能力,然后根据分区供电能力判断可能形成的500kV/220kV分区数目,所有500kV/220kV分区供电能力之和即是1000kV/500kV/220kV3层结构的整体供电能力,1个分区的供电能力范围约为21000~35000 MW。考虑直流接入500kV电网时,可以在原有分区的供电能力上直接叠加直流输入功率需要的500kV/220kV分区供...

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Published in全球能源互联网 Vol. 2; no. 2; pp. 201 - 208
Main Authors 韩奕, 周勤勇, 高骞, 肖晋宇, 任大伟, 张立波, 王雅婷, 覃琴
Format Journal Article
LanguageChinese
Published Editorial Office of Journal of Global Energy Interconnection 01.03.2019
Subjects
Online AccessGet full text
ISSN2096-5125
DOI10.19705/j.cnki.issn2096-5125.2019.02.012

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Abstract 1000kV电网和特高压直流需要依靠500kV电网进行有效的承接和分散。以1000kV和500kV母线的短路电流限制为约束条件,分别针对特高压主变独立和互联供电分区的情况,分析特高压主变分区供电能力。首先分析1000kV/500kV典型分区结构所具备的供电能力,然后根据分区供电能力判断可能形成的500kV/220kV分区数目,所有500kV/220kV分区供电能力之和即是1000kV/500kV/220kV3层结构的整体供电能力,1个分区的供电能力范围约为21000~35000 MW。考虑直流接入500kV电网时,可以在原有分区的供电能力上直接叠加直流输入功率需要的500kV/220kV分区供电能力。针对京津唐规划电网饱和负荷水平进行了深入分析,给出2020年京津唐规划电网目标网架的饱和供电能力范围约为110000~120500 MW。
AbstractList 1000kV电网和特高压直流需要依靠500kV电网进行有效的承接和分散。以1000kV和500kV母线的短路电流限制为约束条件,分别针对特高压主变独立和互联供电分区的情况,分析特高压主变分区供电能力。首先分析1000kV/500kV典型分区结构所具备的供电能力,然后根据分区供电能力判断可能形成的500kV/220kV分区数目,所有500kV/220kV分区供电能力之和即是1000kV/500kV/220kV3层结构的整体供电能力,1个分区的供电能力范围约为21000~35000 MW。考虑直流接入500kV电网时,可以在原有分区的供电能力上直接叠加直流输入功率需要的500kV/220kV分区供电能力。针对京津唐规划电网饱和负荷水平进行了深入分析,给出2020年京津唐规划电网目标网架的饱和供电能力范围约为110000~120500 MW。
Author 任大伟
覃琴
张立波
高骞
王雅婷
周勤勇
肖晋宇
韩奕
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SubjectTerms 分区供电能力
特高压
短路电流
Title 特高压变电站分区供电能力分析
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