基于UML技术的配电网继电保护整定系统研究

发布时间：2018-01-08 05:23

本文关键词：基于UML技术的配电网继电保护整定系统研究　出处：《西安科技大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着电力系统的发展,配电网规模也在不断扩大,使配电网整定计算的难度大大增加,对整定计算软件的要求也越来越高。因此开发一套准确性高、通用性强、可扩展性高、使用方便的配电网整定计算软件,对提高整定计算工作的效率,减轻整定计算人员负担具有重要意义。在对整定系统进行需求分析的基础上,阐述了系统各个模块的功能,重点对系统中的故障计算模块及整定计算模块进行了分析,并采用统一建模语言(UML)对整定系统进行了建模。针对常规故障计算方法存在的局限性问题,采用了规范化故障计算方法,并在实用性方面进行了改进。在此基础上建立了故障模块的对象模型和动态模型,确定了对象模型的属性以及方法。用C++语言编制了故障计算模块程序,通过IEEE33节点标准算例验证了所设计故障计算模块的正确性。针对配电网点多、线长、面广等特点,采用分区保护思想进行保护整定计算。并利用面向对象技术设计了整定计算模块。在此基础上,对开闭所超短线进出线保护配合存在的问题进行了优化改进,并将其整定方法加入了整定计算模块中,编程实现了整定计算模块。最后利用实际配电网系统对所设计保护整定系统进行验证。验证结果表明,系统操作方便,计算结果准确,具有良好的通用性和扩展性。
[Abstract]:With the development of power system, distribution network scale is expanding constantly, make the distribution network greatly increased the difficulty of setting calculation, the setting calculation software requirements are increasingly high. Therefore the development of a set of high accuracy, strong versatility, high scalability, convenient use of distribution network setting calculation software for to improve the efficiency of setting calculation work, reduce the setting calculation burden of personnel has important significance. In the foundation of analyzing the requirement of setting system, expounds the system function of each module, key module and setting calculation module analyzes the faults in the system is calculated, and the unified modeling language (UML) on the modeling of the tuning system. Limitations of conventional fault calculation methods exist, using standardized fault calculation method, and has been improved. In the practical aspects on the basis of an object model of fault blocks And the dynamic model, determine the properties and methods of object model. Using C++ language to compile the fault calculation module program, through the IEEE33 standard examples verify the correctness of the design of fault calculation module. According to the distribution network, line length, wide area protection, thought of protection setting calculation by and. The use of object-oriented technology to design the setting calculation module. On this basis, the opening and closing of the ultra short term import line protection with the problems of optimization was improved, and the setting method of adding a setting calculation module, programming setting calculation module. Finally, using the system of practical distribution network design protection setting system is verified. The verification results show that the system has the advantages of convenient operation, accurate results, and has good generality and expansibility.

【学位授予单位】：西安科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM77

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