Uncertainty analysis of DG hosting capacity in distribution network based on voltage sensitivity

被引：0

作者：

Jin F. ^{[1
]}

Liu J. ^{[1
]}

Liu X. ^{[1
]}

Wen G. ^{[1
]}

Dong Y. ^{[2
]}

Wang S. ^{[2
]}

Zhao Q. ^{[2
]}

机构：

[1] Weifang Power Supply Company of State Grid Shandong Electric Power Company, Weifang

[2] Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin

来源：

Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2022年 / 42卷 / 07期

关键词：

DG hosting capacity; distribution network; uncertainty analysis; voltage sensitivity;

D O I：

10.16081/j.epae.202204076

中图分类号：

学科分类号：

摘要：

In order to improve the accuracy of DG（Distributed Generation） hosting capacity analysis under uncertain environment，the interval mathematic and affine mathematic are adopted to quantify the mapping relationship between uncertainty factors and voltage sensitivity，the affine three-phase voltage sensitivity equations based on Jacobian matrix are derived，and the sensitivity of node voltage magnitude to the uncertainty variation of node injection power is effectively tracked. The overvoltage risk caused by the uncertainty of DG configuration mode is considered，and an uncertainty analysis method of DG hosting capacity is proposed based on voltage sensitivity of Jacobian matrix，which considers both the accuracy and rapidity of DG hosting capacity analysis，and is helpful to assist planners for quick online DG hosting capacity analysis and comprehensive and accurate decision making. The case analysis results of IEEE 33-bus distribution network show that the proposed method can reduce simulation time by 36.44 % on the premise of ensuring the computation accuracy，which verifies the rationality and effectiveness of the proposed method. © 2022 Electric Power Automation Equipment Press. All rights reserved.

引用

页码：183 / 189

页数：6

共 19 条

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