基于N线的拓扑感知技术研究

随着科技革新与能源革命的深度融合,国家电网作为世界一流企业,提出了"推进电网向能源互联网转型升级"的口号;电网是由发电、输电、配电、用电等各类品种繁多的挂网设备组成的复杂系统,明晰挂网产品的拓扑网络,提高电网的智能化感知能力,及时消除安全隐患,确保电网健康、稳定运行成为当前最为迫切的任务;在对电网拓扑结构的研究过程中,提出了基于N线的拓扑感知技术,依据电流沿阻抗最小回路传输原理,采用现代微机处理与控制技术;经实验测试实现了针对电力N线的特征电流信号注入、检测和识别,降低了对挂网设备的影响;可以方便、快捷地接入台区变压器及各级分支箱侧,实现挂网设备的智能化拓扑识别,方便故障点的锁定,第一时间切断故障点电能供给,及时维修故障,确保电力正常、高效的供应。

Research on topology aware technology based on N-wire

In order to fully realize the specific distribution of network equipment, clarify the topology network of network equipment, improve the intelligent perception ability of power grid, eliminate potential safety hazards in time, and ensure the stable and healthy operation of power grid. In this paper, a topology sensing technology based on N-line is proposed. According to the principle of current transmission along the circuit with minimum impedance , Modern microcomputer processing and control technology is adopted ,The characteristic current signal injection technology based on N-line is adopted to reduce the impact on the network equipment. It can be easily and quickly connected to the transformer in the substation area and the branch box at all levels, realize the intelligent topology identification of the network equipment in the substation area, facilitate the locking of the fault point, and cut off the power supply at the fault point at the first time, Timely repair faults to ensure normal and efficient power supply. At the same time, it can also effectively promote the rapid development of ubiquitous power Internet of things.