智能变电站信息记录与网络通信技术研究

发布时间：2018-01-23 13:11

本文关键词： 变电站信息记录信息分析网络通信无源分光技术网络通信监视技术故障录波分析　出处：《天津大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着国家经济的发展，国家电网公司提出了“坚强智能电网”的发展规划，数字化与智能化成为其发展的关键，面对着新的发展要求，智能变电站成为电网今后发展的必经之路，而智能变电站的信息记录与网络通信技术的研究，更是成为研究的重中之重。在本课题中对智能变电站的通信报文进行了深入的研究，通过对网络通信的分析，对智能变电站的信息记录及分析进行研究，重点开展了以下几个方面：（1）针对智能变电站中存在的信息结构的特点，通过无源分光技术，将智能变电站中的相关信息进行分光。在不影响二次设备获取信息的前提下，从原通信光信号中提取一定比例能量的信号进行监视，避免了通过交换机获取监视信号和点对点传输原始信号不一致的情况。（2）针对合并单元同步性检测的问题，提出利用通信监视技术，同时接入不同的合并单元，同时记录并监视所有接入的合并单元所发出的采样值信息。分析各采样值报文的波形，同时对各合并单元同一点采样值信息之间记录的时间误差进行分析，从而实现对各合并单元的同步性的检验。（3）针对合并单元波形一致性检测的问题，提出利用无源分光技术和信号传输监视技术，，将合并单元输入端信号进行分光。同时对分离出的输入端信号和输出端信号进行监视，并绘制出相应的采样值波形进行比较分析，一方面检查两端波形的一致性，另一方面计算合并单元转换延时，进而评估合并单元可用性。（4）针对通信记录信息分析的问题，提出将通信记录信息转换成故障录波文件，即COMTRADE文件，并将所转换的故障录波文件提供给专业的录波分析工具进行详细分析。
[Abstract]:With the development of national economy, the State Grid Company has put forward the development plan of "strong Smart Grid". Digitization and intelligentization become the key to its development and face the new development requirements. Smart substation has become the only way for the future development of power grid, and the research of information recording and network communication technology of intelligent substation has become the most important research. In this paper, the communication message of intelligent substation is deeply studied. Through the analysis of network communication, the information record and analysis of intelligent substation are studied, and the following aspects are emphasized: 1) according to the characteristics of the information structure in the intelligent substation, the relevant information in the intelligent substation is separated by passive light separation technology, without affecting the secondary equipment to obtain the information. The signal with a certain proportion of energy is extracted from the original optical signal for monitoring, which avoids the inconsistency between the acquisition of the monitoring signal by the switch and the transmission of the original signal from point to point. (2) aiming at the problem of synchronous detection of merging units, this paper proposes to use communication monitoring technology to access different merging units at the same time. At the same time, the sampling value information issued by all the connected merging units is recorded and monitored.; the waveform of each sampling value message is analyzed; and the time error recorded between each merging unit and the sampling value information at one point is analyzed. In order to achieve the synchronization of the combined units test. Aiming at the problem of the conformance detection of the waveform of the combined unit, this paper puts forward the technique of passive light splitting and signal transmission and monitoring. At the same time, the input signal and output signal are monitored, and the corresponding sample waveform is drawn for comparison and analysis. On the one hand, we check the consistency of waveform at both ends, on the other hand, we calculate the transition delay of merging unit, and then evaluate the usability of merging unit. 4) aiming at the problem of analyzing the information of communication record, the paper puts forward to convert the information of communication record into fault record file, that is, COMTRADE file. The converted fault recording file is provided to the professional analysis tool for detailed analysis.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM63

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