【作者】 张卫华；

【导师】 文福拴； 王莉；

【作者基本信息】 华南理工大学 ， 电气工程， 2011， 硕士

【摘要】 电力系统的安全、稳定、经济是电网运行的主要目标。在现代电力系统中,计算机系统提供了报警及故障信息收集功能,这些功能无疑提高了电网运行的系统化水平,并且为获取故障信息提供了技术条件。但另一方面,在紧急以及故障状态下,大量信息的涌入给运行人员准确过滤信息和识别故障增加了难度。随着调度自动化系统性能的不断提高,以及继电保护管理信息系统的推广应用,调度中心所接收到的数据量较以往大量增加。电网发生故障时,调度员往往要面对的是比正常操作时多几倍甚至几十倍的故障相关信息,由于缺乏统一的故障数据综合处理和分析工具,这些大量信息的涌入给调度员事故处理造成很大的不便。为了处理事故,调度员还要迅速检索和查找大量的事故处理相关资料。需要一套有效的事故处理智能决策系统,实现对电网故障的自动快速识别、隔离和恢复。本文从研究各种电力系统故障诊断理论出发,吸取以往研究成果和不足,提出了在调度自动化系统基础之上实现事故处理智能辅助决策系统的关键技术要点,如智能防误策略、信息流控制等,明确了系统的基本架构和各项功能需求,并研究了事故处置方案生成、智能减载限电、智能转电决策等系统的典型应用的实现方法。该系统在电网正常运行时为调度员提供事故预想及反事故演练的模拟培训平台等功能。电网发生事故时自动提供故障点、故障类型、停电范围、所涉及的重要用户等信息,并根据电网运行方式和网络拓扑信息,智能化或手动生成恢复方案,提供有效的综合防误操作手段,有效保障电网安全稳定运行。更多还原

【Abstract】 The safety, stability and economic is the main target of the power system operation. In the modern power system, the computer system provides alarm and fault information collection functions, which improves systematic level of the system operation, and provides technological specifications to gain fault information. On the other hand, under the urgent and fault condition, it will be more difficult for operators to filter information and recognize fault when large volume of information pouring in. With the continuous improving of dispatching automatization system performance, and the popularization and application of relay protection management information system, the volume which dispatching centre received has increased more largely than ever before. When there is fault in power grid, it happens frequently that dispatcher needs to face several times or even hundreds of times fault related information than normal operation, also, because of lack of unified integration of data processing and analysis tools , this large pouring information will cause great inconvenience to the dispatcher who deals with the accident. In order to deal with the accident, dispatcher also needs to find and retrieve quickly for lots of relevant accident treatment information. A set of effective fault treatment intelligent decision system is needed to implement automatic rapid identification, isolation and restoration for power grid fault.This essay analyses various power grid fault diagnosis theory, extracts the previous research findings and deficiency, and suggests some key technology points for implementation of accident treatment intelligent assistant decision-making system based on the dispatch automatic system, such as intelligent preventing misoperation system、information flow control etc, and defines basis structure of the system and various function needs. This system provide dispatcher with accident anticipation and simulated training platform against accidents, and other functions when the power grid is operating normally. When fault happens in the power system, it automatically provide fault point、fault type、power failure area、important users involved and other information, and according to the power system running mode and network topology, it intelligently or manually creates recovery scheme, and provides effective and comprehensive means to prevent the misoperation, which ensures the safety and stability of the power system.更多还原