摘要
针对目前配电网拓扑模型质量不高、拓扑关系不完整及连接混乱、模型变化无法感知、一致性无法保证等问题,文章基于工频通信技术,开展工频畸变调制信号传输特点研究,设计出一种中压配电网线变关系识别方法。利用工频畸变调制信号可跨变压器耦合到中压侧远距离传输,且只在配电变压器所在的线路上传输的特点,结合电力线通信,实现配电变压器与10kV线路间拓扑连接关系的自动识别,构建出清晰、完整的中压配电网络,同时为线损计算、故障判别提供技术与数据支撑。
At present,there are some problems in the distribution network,such as the low quality of topology model,the incomplete topology model,the confusion of connectivity,the imperceptibility of model changes,and the lack of consistency.In view of the above problems,based on the power frequency communication technology,this paper studies the transmission characteristics of power frequency distortion modulation signal,and designs a method to identify the line and transformer relationship in the medium voltage distribution network.Using the characteristics that the power frequency distortion modulation signal can be coupled to the medium voltage side for long-distance transmission across the transformer,and only on the line where the distribution transformer is located,while combing with the power line communication,this paper is intended to realize the automatic identification of the topological connection between the distribution transformer and the 10kV line,build a clear and complete medium voltage distribution network,and provide technical and data support for line loss calculation and fault identification.
出处
《科技创新与应用》
2020年第36期96-98,共3页
Technology Innovation and Application
关键词
配电网
线变关系
工频畸变调制信号
distribution network
relationship between line and transformer
power frequency distortion modulation signal
