SOC characteristics of power-supply failure of Guangzhou distribution network

作者：Zhong, Qing; Zhang, Zhe; Xu, Zhong; Cui, Xiaofei; Liu, Feng; Wang, Gang; Wang, Longjun

来源：Electric Power Automation Equipment, 2017, 37(4): 109-113 and 121.

DOI：10.16081/j.issn.1006-6047.2017.04.016

• Least squares methods
• Linear relationships
• Log log scale
• Operational level
• Power law distribution
• Power supply reliability
• Power-supply failure
• Self-organized criticality

The SOC(Self-Organized Criticality) characteristics of distribution network power-supply failure can be researched based on the statistics of power-supply reliability, which may provide the theoretical basis for improving the operational level and power-supply reliability of distribution network. Based on the power-supply reliability data of Guangzhou 10 kV distribution network, the quantity of de-energized household and the duration of emergency outage are chosen as the statistical objects. The linear relationship between the scale and frequency of the chosen objects on log-log scale is fitted by the least squares method and validated by F-test, which preliminarily verifies the SOC characteristics of 10 kV distribution network power-supply failure. The operational significance of SOC characteristics to the operation of distribution network is given.

• 出版日期2017-4-10
• 单位华南理工大学