• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

电力建设 ›› 2019, Vol. 40 ›› Issue (11): 1-7.doi: 10.3969/j.issn.1000-7229.2019.11.001

• 泛在电力物联网·栏目主持 杨挺教授、傅质馨副教授· • 上一篇    下一篇

基于混合队列模型的配电网状态监测业务通信带宽预测

王志伟1,李建岐2,黄毕尧2   

  1. 1.华北电力大学电气与电子工程学院, 北京市 102206;2.全球能源互联网研究院有限公司,北京市 102209
  • 出版日期:2019-11-01
  • 作者简介: 王志伟(1993),男,通信作者,硕士研究生,主要研究方向为低功耗广域物联网通信在配电网状态监测中的应用; 李建岐(1969),男,教授级高级工程师,主要从事电力通信、智能配电网等技术方面的研究工作; 黄毕尧(1982),男,高级工程师,主要研究方向为配用电信息通信、智能配用电等。
  • 基金资助:
    国家电网公司科技项目(SGGR0000XTJS1800957)

Communication Bandwidth Prediction Based on Hybrid Queue Model for Condition Monitoring Service in Distribution Network

WANG Zhiwei1, LI Jianqi2, HUANG Biyao2   

  1. 1.School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China; 2.Global Energy Interconnection Research Institute Co., Ltd., Beijing 102209, China
  • Online:2019-11-01
  • Supported by:
    This work is supported by State Grid Corporation of China Research Program( No. SGGR0000XTJS1800957).

摘要: 配电网状态监测系统建设是构建泛在电力物联网的重要内容,准确预测通信网络带宽对明确业务需求、优化资源配置具有重要意义。针对当前配用电基于排队论的通信带宽预测方法在混合业务并存时带宽计算过程复杂的局限性,提出了一种基于G/M/1/N队列模型的通信带宽预测方法。从状态监测系统架构和数据业务特点出发,分析混合数据业务到达时间间隔的统计描述以及基本传输速率,并给出了满足服务质量(quality of service,QoS)要求的系统带宽最优化化求解方法。以典型配电网状态监测应用为例,讨论了业务带宽、服务质量和带宽利用率之间的量化评价过程;验证了配电网状态监测网络信息流的“小数据”特征,为低功耗广域物联网通信技术在配电网状态监测中的应用提供了理论支撑。

关键词: 配电网状态监测, 混合队列, G/M/1/N模型, 带宽预测

Abstract: The construction of condition monitoring system in distribution network is an important part of constructing ubiquitous power internet of things. Accurate estimation of communication bandwidth is of great significance to identity business requirements and to optimize resource allocation. In view of current communication bandwidth estimation method based on queuing theory results in the limitation of bandwidth computation complexity when hybrid services coexist, a method based on G/M/1/N queue model is proposed. On the basis of the architecture of condition monitoring system and the characteristics of data service, this paper analyzes the statistical description and basic transmission rate of the inter-arrival time of mixed data service, and gives the optimal solution method of bandwidth to meet the requirements of QoS. Taking the typical condition monitoring application as an example, the quantitative evaluation process among service bandwidth, QoS and bandwidth utilization is discussed. The “small data” characteristics of the information flow in the condition monitoring network of distribution network are verified, which provides a theoretical support for the application of low-power wide-area IoT communication technology in condition monitoring.

Key words: status monitoring in distribution network, hybrid queue, G/M/1/N model, bandwidth prediction

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