基于蚁群算法的电力线载波通信组网研究
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摘要
低压电力线载波通信有广阔的应用前景,低压配电网噪声、衰减特性使通信距离变短和可靠性变差,本文提出把蚁群算法应用到电力线载波通信路由优化问题上,通过构建动态路由通信网络来提高系统抗干扰能力,克服制约电力线通信应用的可靠性问题。
     本文介绍了电力线通信发展现状,对现阶段电力线通信组网方式及其缺点进行了阐述。分析了蚁群算法的原理和特点,并在此基础上提出了一种基于蚁群算法的电力线通信动态路由组网模式,该方法是电力线通信组网方面的新尝试。
     提出了电力线通信拓扑模型,在此模型的基础上用Matlab进行仿真,分析了蚁群算法在电力线通信路由优化问题上的可行性,对比分析了算法快速性和鲁棒性。本部分仿真为算法选择及参数设计提供理论依据。
     以路灯监控网络为应用实例,仿真分析在实际应用约束条件下动态路由算法的效果。针对低压配电网盲态网络结构,仿真分析组网算法探索路径及线路优化的能力,为该网路通信提供组网方法。
     针对传统ACS算法在电力线通信组网时负载不均衡问题,提出能见度变参数控制改进蚁群算法和信息素初值变参数控制改进蚁群算法,通过仿真分析改进后算法的在负载均衡性能上的改善效果,对比分析了算法路由优化能力和组网花费情况。
     详细阐述了蚁群动态路由网络的实现过程,包括窄带电力线载波通信模块设计,算法任务划分及软件程序设计,探讨了网络重构方式和网络维护策略,在窄带电力线通信网络中实现了蚁群动态路由组网算法,在此基础上提出了电力线透传网络的层次划分及实现方法。
     针对蚁群动态路由算法组网实验结果,对算法的时空特性进行了分析,阐述了算法性能。
Low voltage power line communication has broad application perspective. The characteristic of Low voltage PLC in the heavy and attenuation makes distance of communication short and security bad. The paper presents using Ant Colony Algorithm (ACA) to solve the problem of PLC route. This dynamic route network can advance capability of resisting disturbance. It can overcome bad reliability that restricts application of PLC.
     The present state of PLC is introduced in this paper. The current mode of building network and its disadvantage are expatiated. The theory of ACA, its domains of application, present research state and direction of research are analyzed. The dynamic route technology based on Ant ACA is presented in the paper. It is a new model of network construction in PLC.
     The topology model of PLC is designed. The feasibility of dynamic route PLC network based on ACA is simulated using Matlab. The algorithmic characteristic of robust and speediness are compared. The simulation provides academic foundation for the application of arithmetic.
     The street lamp monitor network is simulated as a typical application ensample. The characteristic of arithmetic is analyzed in this network with constraint Point to low voltage power indiscernible network. The arithmetic capabilities of searching and optimizing routes are analyzed through simulation in this network. The paper offers a method to solve the puzzle.
     Point to the phenomenon of load unbalance about ACS, The paper Bring forward alterable visibility arithmetic and alterable initial pheromone arithmetic. The simulation proves Amended arithmetic can make load more balanceable. The quality of route and the cost are compared using different arithmetic.
     The realizing process of dynamic route arithmetic is expatiated The PLC module is designed and task of arithmetic is distributed. The programme of ACA is designed in this paper. The rebuilding mode and renovating strategy are discussed. Based on this hardware, ACS dynamic route arithmetic is realized in narrowband PLC network. The layer design of transparent transmission network is brought forward.
     Point to the result of experiment using ACA to construct network, the tspatio-temporal characteristics of arithmetic are analyzed. The quality of arithmetic is expatiated.
引文
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