| 引用本文: | 钟庆,张哲,许中,崔晓飞,刘峰,王钢,汪隆君.广州配电网故障停电事故的自组织临界特征[J].电力自动化设备,2017,37(4): |
| ZHONG Qing,ZHANG Zhe,XU Zhong,CUI Xiaofei,LIU Feng,WANG Gang,WANG Longjun.SOC characteristics of power-supply failure of Guangzhou distribution network[J].Electric Power Automation Equipment,2017,37(4): |
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| 摘要: |
| 利用配电网可靠性的统计数据研究配电网停电事故的自组织临界(SOC)特性能为提高配电网运行水平、改善供电可靠性提供理论依据。因此，在广州市10 kV配电网可靠性统计数据的基础上，选取了故障停电事故的停电时户数和停电持续时间为分析对象；然后，利用最小二乘法，在双对数坐标系下，对分析对象的标度和频度的关系进行线性拟合，通过F检验，校核标度、频度的线性相关关系，初步验证了10 kV配电网故障停电事故的SOC特性；最后，给出了SOC特性对配电网运行的指导意义。 |
| 关键词: 配电网 自组织临界性 幂律分布 供电可靠性 停电事故 |
| DOI：10.16081/j.issn.1006-6047.2017.04.016 |
| 分类号:TM761 |
| 基金项目:国家自然科学基金资助项目(51307061)；中国南方电网有限责任公司重点科技项目(GZHKJ00000002) |
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| SOC characteristics of power-supply failure of Guangzhou distribution network |
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ZHONG Qing1, ZHANG Zhe1, XU Zhong2, CUI Xiaofei2, LIU Feng1, WANG Gang1, WANG Longjun1
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1.School of Electric Power, South China University of Technology, Guangzhou 510641, China;2.Electric Power Test & Research Institute, Guangzhou Electric Power Company, Guangzhou 510000, China
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| Abstract: |
| 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. |
| Key words: distribution network self-organized criticality power-law distribution power-supply reliability power-supply failure |
