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基于能源控制器的低压配网台区拓扑识别技术研究

2021-02-19于振超朱德良苗兴张珊珊张硕

现代信息科技 2021年13期

于振超 朱德良 苗兴 张珊珊 张硕

摘  要:随着泛在电力物联网战略的有序推进,能源控制器能够实现台区的物联管理和智能感知,是电力物联网建设的重要组成部分。台区拓扑识别是基于工频畸变和特征电流的技术,结合宽带载波通信即可实现自动绘制出各级分支、表箱、电表的供电关系图,从而识别出该台区下有多少个设备节点以及各设备节点的上级供电节点。再通过理论数据的支撑和实验模拟环境论证进一步证明该种方案现场运行的可行性,并做出复杂环境兼容性优化。

关键词:泛在电力物联网;能源控制器;台区拓扑识别;工频畸变;特征电流

中图分类号:TM933.4;TN929.5    文献标识码:A文章编号:2096-4706(2021)13-0159-04

Research on Topology Recognition Technology of Low Voltage Distribution Network Station Area Based on Energy Controller

YU Zhenchao, ZHU Deliang, MIAO Xing, ZHANG Shanshan, ZHANG Shuo

(CET Shandong Electronics Co., Ltd., Jinan  250101, China)

Abstract: With the orderly advancement of the ubiquitous power internet of things strategy, the energy controller can realize the internet of things management and intelligent perception in the station area, which is an important part of the construction of the power internet of things. Station area topology identification is a technology based on power frequency distortion and characteristic current, combined with broadband carrier communication, it can automatically draw the power supply relationship diagrams of branches, meter boxes, and meters at all levels, so as to identify the number of equipment nodes under the station area and the superior power supply node of each device node. The support of theoretical data and the demonstration of the experimental simulation environment further prove the feasibility of the on-site operation of this kind of scheme, and make the optimization of the compatibility of the complex environment.

Keywords: ubiquitous power internet of things; energy controller; station area topology identification; power frequency distortion; characteristic current

0  引  言

隨着国家电网公司加快打造具有全球竞争力的世界一流能源互联网企业的目标引导下,正在加大“云、管、边、端”设备从上到下的部署新产品的研发工作。能源控制器集配电台区供用电信息采集、电能表或采集终端数据收集、设备状态监测及通讯组网、就地化分析决策、协同计算等功能于一体的智能化终端设备,硬件采用平台化设计,支持边缘计算框架,软件上采用容器化设计,硬件与软件实现了最大限度地解耦,能够以软件定义的方式实现功能灵活扩展。基于能源控制器与端设备通过宽带载波进行通信,结合能源控制器自带工频畸变特征电流技术可以实现整个低压配电台区的拓扑识别功能。

能源控制器是台区拓扑识别系统中的关键核心设备,其既需要与主站系统进行交互,获取主站下发的拓扑识别特征参数及拓扑识别启动命令、响应主站召测终端的拓扑识别结果;还需要下行控制档案设备发送特征信号,读取识别设备的识别结果等功能。……

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