220kV智能变电站监控系统优化研究

发布时间：2018-03-16 15:25

本文选题：监控系统　切入点：电子式互感器　出处：《长沙理工大学》2014年硕士论文　论文类型：学位论文

【摘要】：“十二五”期间,国家大力发展建设智能变电站,大约要完成5000座新站的建设和1000座老站的智能化改造,智能电网的发展对变电站智能化提出了更高的要求；监控系统作为变电站二次系统重要的一环,在智能变电站中占据了很重要的地位,监控系统实现了对变电站全局的监控和数据的共享。论文重点研究了典型220kV智能变电站监控系统的网络结构、二次设备端口以及交换机的优化问题。论文首先对典型220kV智能变电站的一次接线和设备进行了分析和研究,根据实际情况,进行了相应设备的选择,并详细地分析了电子式互感器的原理和分类情况,依据典型220kV智能变电站各个间隔的情况,选择了相应的电子式电流互感器和电压互感器。通过对变电站监控系统的通信服务模型、保护测控一体化、保护跳闸和网络拓扑结构等技术的分析研究,提出了典型220kV智能变电站监控系统的网络优化方案。优化方案主要从二次设备端口和光纤方面进行了经济方面的考虑。从方案优化的结果中可以看出：信息经过网络传输的经济性最佳。从工程实际应用出发,对三层两网的网络结构各间隔的网络进行了综合性优化。在对典型220kV智能变电站监控系统优化的基础上,继续对交换机进行了优化,交换机优化主要涉及到带宽和数据流向的分配。通过对各间隔SV报文和GOOSE报文的流量分析,在满足全站各个节点负载率的前提下,对全站带宽进行了分析优化。根据带宽和数据流向的分配结果,对交换机网络端口进行了统计分析,得出了最后交换机优化结果。
[Abstract]:During the "12th Five-Year Plan" period, the country vigorously developed and built intelligent substation, about 5000 new stations and 1000 old stations will be built intelligently. The development of smart grid has put forward higher requirements for substation intelligence. As an important part of secondary substation system, monitoring system plays an important role in intelligent substation. The monitoring system realizes the overall monitoring and data sharing of the substation. This paper focuses on the network structure of the typical 220kV intelligent substation monitoring system. The paper first analyzes and studies the primary connection and equipment of a typical 220kV intelligent substation, and selects the corresponding equipment according to the actual situation. The principle and classification of electronic transformer are analyzed in detail. According to the situation of each interval of typical 220kV intelligent substation, The corresponding electronic current transformer and voltage transformer are selected. Through the analysis of the communication service model of substation monitoring system, the integration of protection, measurement and control, protection tripping and network topology, etc. The network optimization scheme of a typical 220kV intelligent substation monitoring system is put forward. The optimization scheme is mainly considered from the aspects of secondary equipment port and optical fiber. From the result of the scheme optimization, it can be seen that the information passed through. The economy of network transmission is the best. Based on the optimization of the monitoring system of a typical 220kV intelligent substation, the switch is continuously optimized. Switch optimization mainly involves the allocation of bandwidth and data flow direction. By analyzing the traffic of SV packets and GOOSE packets at each interval, the load rate of each node in the whole station is satisfied. The bandwidth of the whole station is analyzed and optimized. According to the distribution result of bandwidth and data flow, the network port of switch is statistically analyzed, and the final result of switch optimization is obtained.
【学位授予单位】：长沙理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM63;TM76

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