基于IEC 61850标准的智能调度系统源端维护研究

发布时间：2018-04-30 21:32

本文选题：IEC + 61850　；参考：《西南交通大学》2017年硕士论文

【摘要】：目前,国内电网系统正处于一个飞速发展阶段,常规变电站自动化系统开始暴露出一些不足。二次设备彼此间互操作性差,变电站之间信息共享难以实现,系统的可扩展能力薄弱等都成为制约智能电网发展的重要因素。这些问题的关键还在于变电站和调度中心各自独立建模,使得彼此之间模型存在差异,难以实现无缝操作。针对这一现状,展开了对智能调度系统源端维护技术的研究。本文首先对比分析了调度中心和变电站之间建模的差异,在现有的一些模型融合方法的基础上,讨论了调度中心采用IEC61850标准建模的可行性,并给出了一种基于IEC 61850标准的源端维护解决方案。在该方案中,首先给出了一种SCD文件筛选技术,来解决不同调度中心对变电站模型信息需求不一致的问题。该技术对变电站配置描述文件(SCD)按电压等级进行筛选,并剔除调度中心不关心的部分,生成新的带指定电压等级的SCD文件,并按需上送至调度中心。通过这种技术,从变电站端解决了 SCD模型文件完整上传占用网络资源,增加调度中心工作量的问题。其次在实现源端维护的远动通信方面,采用了基于IEC61850标准的MMS+TCP/IP模型结构,给出了通信结构及实现方法。该模型的优势在于采用MMS作为应用层通信协议,网络层和链路层采用TCP/IP协议,通过以太网传输,可以满足源端维护对实时通信及模型传输的要求。论文最后设计了验证文中源端维护功能的仿真界面,给出源端维护的仿真流程,并在实验室环境下以孟姜子站为例仿真验证了该源端维护方法的可行性。全文着眼于源端维护技术的实现方法和过程,符合目前智能电网的发展方向,论文所研究的源端维护方法,以现有技术为基础,有较好的现实意义,对未来智能电网实现无缝通信也有一定的推动作用。
[Abstract]:At present, the domestic power grid system is in a rapid development stage, the conventional substation automation system began to expose some shortcomings. The poor interoperability of secondary equipment, the difficulty of information sharing among substations, and the weakness of the system's extensibility are the important factors restricting the development of smart grid. The key to these problems lies in the independent modeling of substation and dispatching center, which makes the models of substation and dispatching center different and difficult to operate seamlessly. In view of this situation, the source maintenance technology of intelligent scheduling system is studied. In this paper, the difference of modeling between dispatching center and substation is analyzed. On the basis of some existing model fusion methods, the feasibility of using IEC61850 standard to model dispatching center is discussed. A source-side maintenance solution based on IEC 61850 is presented. In this scheme, firstly, a SCD file filtering technique is presented to solve the problem that different dispatching centers need different substation model information. In this technique, the substation configuration description file is screened according to the voltage level, and the new SCD file with the specified voltage level is generated and sent to the dispatching center on demand by excluding the unconcerned part of the dispatching center. Through this technique, the problem of SCD model file upload and occupy network resource is solved from substation terminal, and the workload of dispatching center is increased. Secondly, the MMS TCP/IP model structure based on IEC61850 standard is used to realize the remote communication of source terminal maintenance, and the communication structure and implementation method are given. The advantage of this model is that it uses MMS as application layer communication protocol, network layer and link layer adopt TCP/IP protocol and transmit through Ethernet, which can meet the requirements of source side maintenance for real-time communication and model transmission. Finally, the simulation interface is designed to verify the function of source maintenance in the paper, and the simulation flow of source maintenance is given. The feasibility of the method is verified by the example of Meng Jiang Zi Station in laboratory. The full text focuses on the realization method and process of source-end maintenance technology, which is in line with the development direction of smart grid at present. The source-end maintenance method studied in this paper is based on the existing technology and has good practical significance. The future smart grid to achieve seamless communication also has a certain role in promoting.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM76;TM73

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