1. 中国南方电网广东电网有限责任公司中山供电局
2. 重庆大学输变电装备技术全国重点实验室
纸质出版:2026
移动端阅览
邱军旗, 王建, 李宾, 等. 基于零序电流的配网单相接地故障综合辨识方法[J]. 电网与清洁能源, 2026,42(1):56-66.
邱军旗, 王建, 李宾, et al. 基于零序电流的配网单相接地故障综合辨识方法[J]. 2026, 42(1): 56-66.
邱军旗, 王建, 李宾, 等. 基于零序电流的配网单相接地故障综合辨识方法[J]. 电网与清洁能源, 2026,42(1):56-66. DOI: 10.26963/j.psce.2026.01007.
邱军旗, 王建, 李宾, et al. 基于零序电流的配网单相接地故障综合辨识方法[J]. 2026, 42(1): 56-66. DOI: 10.26963/j.psce.2026.01007.
针对配电网高阻故障下故障定位和故障原因辨识困难的问题,提出了一种基于零序电流的配电网综合故障辨识方法。首先,分析了配电网高阻故障下节点处基频零序电流波形相似度与配电网典型故障的零序电流波形特征。其次,提取节点处基频零序电流故障后首个周波波形,利用其波形余弦相似度特征实现故障区段定位。再次,利用残差网络深度学习模型提取故障区段零序电流波形的图像特征,辨识故障原因。最后,在仿真平台搭建多分支混合线路配电网模型,构建故障仿真样本库用于训练和测试。算例分析表明,在多分支混合线路配电网中,所提方法对于故障区段定位准确率为100%,对于故障原因辨识的准确率可达99.8%,在噪声和励磁涌流等干扰的影响下,仍具有良好的抗扰性和适应性,有助于指导故障重合闸,提高配电网故障恢复效率,提高供电可靠性。
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