电网负荷建模技术支持系统

发布时间：2018-07-18 08:11

【摘要】：负荷建模作为一个基础性的研究课题,一直以来都受到很多专家学者的广泛关注。多年来随着研究的不断深入,负荷建模工作也取得丰富的研究成果,其中有很多在实际的电网中得到了应用。但在全球能源互联网快速发展及构建坚强智能电网的背景下,现代电力系统对实时在线安全分析的要求越来越高,需要采用先进的技术保证建模的精度和效率。因此,如何科学地建立一个负荷建模系统软件,合理、高效地将负荷建模理论应用于工程实践,方便负荷建模人员开展工作,为电网调度及研究人员提供正确合理的负荷模型,有着重要意义。本文从负荷建模工程实用化研究进展缓慢这一问题入手,对电网负荷建模技术支持系统进行了深入研究。针对目前已有建模系统平台所存在的缺点与不足,开发了一个理论完善、技术先进的电网负荷建模技术支持系统;系统采用神经网络算法及负荷特征提取与分类等建模方法,解决了负荷的分散性和时变性问题,并结合基本的建模方法,建立综合负荷模型。依据系统的总体开发思路和基本设计原则,构建了电网负荷建模技术支持系统的结构体系,并对系统的各个功能模块进行了设计与实现。电网负荷建模技术支持系统采用面向对象的开发技术和模块化的设计思想,以微软提供的Visual Studio 6.0为开发工具,以C++语言作为编程语言,基于MFC框架结构,搭建了系统的前端图形用户界面,以关系型数据库MySQL作为本地数据库服务器,对负荷统计数据和现场实测数据进行集总管理,采用开放数据互连(ODBC)与ADO数据库编程技术实现数据流在系统各个功能模块之间的流动,利用DLL技术完成复杂负荷建模算法。该系统实现了各类负荷建模数据的查看与管理、变电站负荷特性分类与综合、统计综合建模法和总体测辩建模法等基本功能。系统具有基础理论先进、功能完善、自动化程度高、人机界面友好和操作简便等优点,实现了负荷建模理论在实际工程中的应用。
[Abstract]:As a basic research topic, load modeling has been widely concerned by many experts and scholars. With the development of research, load modeling has made a lot of achievements, and many of them have been applied in practical power system. However, with the rapid development of the global energy Internet and the construction of a strong smart grid, modern power systems are demanding more and more real-time online security analysis, which requires the use of advanced technology to ensure the accuracy and efficiency of modeling. Therefore, how to set up a scientific load modeling system software, apply load modeling theory to engineering practice reasonably and efficiently, facilitate the work of load modelers, and provide a correct and reasonable load model for power grid dispatching and researchers. It is of great significance. Starting with the slow progress of practical research on load modeling engineering, this paper makes an in-depth study on the power grid load modeling technology support system. In view of the shortcomings and shortcomings of the existing modeling system platform, a power grid load modeling technology support system with perfect theory and advanced technology is developed, which adopts neural network algorithm, load feature extraction and classification, and so on. The problems of load dispersion and time variability are solved, and combined with the basic modeling method, the comprehensive load model is established. According to the general development ideas and basic design principles of the system, the structure system of the power grid load modeling technology support system is constructed, and each functional module of the system is designed and implemented. The power grid load modeling technology support system adopts the object-oriented development technology and the modular design idea, takes Visual Studio 6.0 provided by Microsoft as the development tool, takes C language as the programming language, and based on the MFC frame structure. The front-end graphical user interface of the system is built. The relational database MySQL is used as the local database server to manage the load statistics data and the field measured data. The open data interconnection (ODBC) and ADO database programming technology are used to realize the flow of data flow between the various functional modules of the system, and DLL technology is used to complete the complex load modeling algorithm. The system realizes the basic functions of checking and managing all kinds of load modeling data, classifying and synthesizing the load characteristics of substations, statistical comprehensive modeling method and total measurement and resolution modeling method. The system has the advantages of advanced basic theory, perfect function, high degree of automation, friendly man-machine interface and easy to operate. The application of load modeling theory in practical engineering is realized.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM743

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