通信学报 ›› 2018, Vol. 39 ›› Issue (5): 166-176.doi: 10.11959/j.issn.1000-436x.2018087

• 学术通信 • 上一篇    下一篇

基于不确定理论的能量收集可靠性建模及规划

王哲1,李陶深2,叶进2,葛志辉2,吴敏3   

  1. 1 广西大学电气工程学院,广西 南宁 530004
    2 广西大学计算机与电子信息学院,广西 南宁 530004
    3 广西电网有限责任公司,广西 南宁 530023
  • 修回日期:2018-03-30 出版日期:2018-05-01 发布日期:2018-06-01
  • 作者简介:王哲(1991-),男,河南南阳人,广西大学博士生,主要研究方向为电力装备与智能信息技术、能量收集无线网络、能量与信息联合传输等。|李陶深(1957-),男,广西南宁人,广西大学教授、博士生导师,主要研究方向为无线Mesh网络、网络计算与信息安全、分布式工程数据库、CAD理论及应用等。|叶进(1970-),女,江苏泰兴人,广西大学教授、博士生导师,主要研究方向为无线多媒体网络协议、数据中心网络、数据挖掘等。|葛志辉(1978-),男,河北滦县人,广西大学教授、硕士生导师,主要研究方向为无线网络、移动计算等。|吴敏(1979-),男,广西南宁人,广西电网有限责任公司科技部科技政策与规划科科长,主要研究方向为电力系统规划、新能源技术、电力电子技术等。
  • 基金资助:
    国家自然科学基金资助项目(61762010);国家自然科学基金资助项目(61363067);国家自然科学基金资助项目(61462007)

Reliability modeling and planning of energy harvesting based on uncertainty theory

Zhe WANG1,Taoshen LI2,Jin YE2,Zhihui GE2,Min WU3   

  1. 1 College of Electrical Engineering,Guangxi University,Nanning 530004,China
    2 School of Computer,Electronics and Information,Guangxi University,Nanning 530004,China
    3 Guangxi Power Grid Co.,Ltd.,Nanning 530023,China
  • Revised:2018-03-30 Online:2018-05-01 Published:2018-06-01
  • Supported by:
    The National Natural Science Foundation of China(61762010);The National Natural Science Foundation of China(61363067);The National Natural Science Foundation of China(61462007)

摘要:

能量收集网络(energy harvesting network)是一种新型的计算机网络形式,它通过搜寻各类环境能源,将其转化成可用的电能,然后将这些电能作为主要或辅助的电源方式供给电子设备进行网络通信。然而,能量收集过程具有极大的波动性和不确定性,传统方法基于解析概率分布函数刻画能量收集过程,无法准确模拟实际情况,导致节点死亡概率较高、可靠性无法保证。为此,提出能量收集网络节点能量收集可靠性定义,对节点能量收集的置信程度给出评价,基于不确定理论,对能量收集的可靠性进行评估分析,分别建立节点无电池和无限容量电池情况下的可靠性模型。在此基础上提出能量收集可靠性多层不确定规划模型,对模型求解并提出一种能量平均分配(EAA,energy average allocation)算法,并从理论上证明算法竞争比的上界。最后,以实际的风电数据为例,验证所提模型和方法的可行性和有效性。

关键词: 能量收集网络, 可靠性, 不确定理论, 多层规划, 场景生成

Abstract:

Energy harvesting network is a new form of computer networks.It can convert the environmental energy into usable electric energy,and supply the electrical energy as a primary or secondary power source to the electronic device for network communication.However,the energy harvesting process has great volatility and uncertainty,the traditional analytical method based on probability distribution function to describe the energy collection process can not accurately simulate the actual situation,resulting in higher depletion probability of nodes,then the reliability cannot be guaranteed as a result.For this,the energy harvesting reliability of energy harvesting nodes was defined,represented with the degree of normal operation,respectively set up the node reliability models with no battery and infinite battery.As an example for maximum node achievable rate,the uncertain multilevel programming model based on node reliability was put forward,then the network efficiency was improved under the premise of ensuring node reliability.An energy average allocation (EAA) algorithm was proposed and the upper bound of competitive ratio of the algorithm was proved theoretically.Finally,the actual wind power data was taken as an example to verify the feasibility and effectiveness of the proposed model and method.

Key words: energy harvesting network, reliability, uncertainty theory, multilevel programming, scenarios generation

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