黄璐涵,熊尉辰,宋晓林,宋国兵

• 1:国网陕西省电力公司营销服务中心
• 2:西安交通大学电气工程学院

摘要(Abstract)：

及时识别低压配电线路参数可预防非突发性故障的发生，但囿于智能电表量测数据种类，合适的计算方法有待研究。文章基于已知拓扑及智能电表测得的有功无功、电压电流有效值，提出了一种线路参数计算方法。该方法假定了线路阻抗初值，从负荷侧推得各条线路的功率分布，从电源侧推得各电气量相位角，再用测得值及推得的相位角组成新的电气量，然后形成KVL方程并通过最小二乘法进行阻抗新值的迭代求解。最后以包含24个负荷电表节点、31条支路的配网算例验证了所提方法的有效性。

关键词(KeyWords)： 低压配电网;非突发性故障预测;智能电表;线路阻抗;最小二乘法

Abstract:

Keywords:

基金项目(Foundation): 国家电网有限公司总部科技项目：1100-201919158A-0-0-00

作者(Author): 黄璐涵,熊尉辰,宋晓林,宋国兵

DOI: 10.19635/j.cnki.csu-epsa.000835

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