排序方式: 共有12条查询结果,搜索用时 296 毫秒
1.
2.
目前满足系统保护通信网络的路由算法是在综合时延和可靠性的要求下,计算一条快速且可靠传输的路径,而没有考虑到当电网发生故障或网络中通信量过大时,通信网络中许多节点的排队时延会极大地增加,忽略排队时延对路径传输总时延的影响会导致路径的错误选择,从而影响系统保护的实时性。针对此问题,提出了一种考虑排队时延的路由选择算法,用于计算信息传输总时延最小的最优路径,以提高系统保护通信的实时性。实验结果表明,通过本文提出的路由选择算法计算得到的路径在满足系统保护可靠性要求的基础上信息传输总时延最小。 相似文献
3.
《全球能源互联网(英文)》2019,2(6):496-503
In order to meet the pressing demand for wide-area communication required by the Global Energy Interconnection (GEI), accelerating the construction of satellite-terrestrial integrated networks that can achieve network extension and seamless global coverage has become the focus of power communication technology development. In this study, we propose a satellite-terrestrial integrated network model that can support interconnection and interoperation on the IP layer between the satellite system and the terrestrial segment of the existing power communication system. First, the composition and function of the satellite-terrestrial collaborative network are explained. Then, the IP-based protocol stack is described, and a typical application experiment is conducted to illustrate the particular process of this protocol stack. Finally, a use case of IP interconnection that depends on GEO satellite communication is detailed. The experimental study has showed that the satellite-terrestrial collaborative network can efficiently support various IP applications for the GEI. 相似文献
4.
支撑电力业务规划的软件定义网络控制器时延性能分析 总被引:1,自引:0,他引:1
引入集中控制理念的软件定义网络(SDN)技术为网络的智能化提供了新的思路,但也同时在业务的端到端传输时延中引入了控制时延。详细阐述了SDN架构下,硬件资源和流表下发模式对控制时延的影响,在仿真环境和实际测试中,开展了两种流表下发模式下端到端时延对比和应用系统控制时延对比。从数据分析中可以得出Reactive模式拥有较高的自动化程度与灵活性,但会引入高控制时延,Proactive模式的控制时延很低,但需要人工干预和预配置。基于对比结论,结合现网业务承载方式,建议电力通信网中涉及路由的承载方式可采用SDN技术进行优化,通过预配置业务路径,以Proactive模式保障实时性,同时支持Reactive模式,应对复杂网络的灵活性需求。 相似文献
5.
6.
7.
8.
9.
Power-over-fiber technology provides several advantages for harsh industrial application and can potentially be widely used in electric power system. In this paper, a reliable power-over-fiber system is presented, which is able to adjust the optical power automatically corresponding to the variance of the output load. An optic-electric feedback energy management scheme is designed and experimentally verified. The static and dynamic responses of the system towards load variances are further tested. The results show that the working status of the laser can be dynamically changed according to the output load, rather than maintaining the laser at the status of high-power output, which will potentially prolong the life and enhance the reliability of the system. 相似文献
10.
依据国家网络安全等级保护与风险评估系列标准以及电力信息系统特点,提出国家电网边缘计算应用安全的风险评估模型,然后采用漏洞扫描工具AWVS、AppScan分别对集成最新安全漏洞的开源Web应用靶机软件BWAPP进行安全漏洞评测与风险评估实验,再运用模糊层次分析法对Web应用安全进行综合安全评价。针对应用程序的安全检测实验结果整理安全评估数据,实现对国家电网边缘计算应用安全风险评估的实例化验证。 相似文献