面向对象的数据交换协议研究与应用

文章运用面向对象方法研究了用电信息采集与管理系统面向对象互操作数据交换协议。介绍了面向对象的概念,以及基于面向对象思想建立协议中对象标识系统和接口类的过程。然后将面向对象协议与现行的面向业务型协议对比分析,通过具体的协议条文举例和现场试点的数据展现了面向对象协议的技术优势。     

电网调度操作票专家系统的设计与开发

介绍了一个面向对象的电力系统调度操作票专家系统。为了实现源代码的重用并改善软件的性能,面向对象的继承性被用于构造软件的类体系,且类的构造是基于操作对象的功能和操作方式,而不是以往的设备或间隔分类。基于面向对象的分析和设计技术,设计了适合电力系统调度操作的网络拓扑、知识库和推理机制,从而生成了一个实用的电力系统调度操作票专家系统。     

Development of power flow software using design patterns

Application of object-oriented design patterns for the development of power system computation software is presented. Important patterns such as "Iterator," "Decorator," and "Template Method" are utilized to develop a comprehensive power flow (load flow) analysis program, including FACTS devices such as SVC, TCSC, STATCOM, and UPFC. Analysis-independent object models of power system components are obtained by untying the attributes required for computation from the attributes representing the physical characteristics of an object. The proposed object-oriented design of power flow computation has been implemented in C++ on windows environment. The performance of the developed program has been tested with IEEE benchmark systems.     

Object-oriented software engineering for transmission planning inopen access schemes

The object oriented approach has gained wide spread importance and acceptance in software development due to the advantages it offers concerning flexibility, expandability, maintainability, and data integrity. For the purpose of determining a dynamic planning of a transmission system in a deregulated open access environment, an object-oriented market simulation model of power systems is proposed. Traditional power system analysis applications are realised with object-oriented programming methods. The presented concept makes use of these object-oriented applications, and its applicability to a real system is shown with the Chilean business structure     

地区电网保护定值在线校验智能系统

介绍了一个已投入试运行的地区电网继电保护定值在线校验智能系统。根据地区电网的特 点,采用面向对象和链表等指针型数据结构对电网进行表示和数据管理,提出了基于矩阵模型的厂 站实时结线分析新方法;总结归纳了地区电网继电保护定值的校验规则,提出了不规则线路的保护 灵敏度校验和保护配合校验的策略。以某地区电网为实验对象,对其相间距离、接地距离、零序电 流保护的灵敏性和选择性进行了校验。     

IEC 61850信息模型一致性的检验和控制方法

从继电保护故障信息系统的管理需求出发,针对继电保护等智能电子设备(IED)信息条目和语义缺乏统一的问题,提出一种以IEC61850信息模型为管理对象、采用信息语义理论和面向对象理论的IED信息模型一致性检验及控制的方法。该方法能够将语义字典的管理由静态行为转变为面向过程的动态管理,以实现二次系统信息语义的一致性,并使其发展及变化过程受控。     

基于分布式对象缓存的电力信息系统任务调度方法

根据电网数据特征,提出基于树形结构分布式对象缓存的任务调度算法。算法将业务数据封装成数据对象,将工作任务抽象成任务对象,按照树形结构将数据对象和任务对象分布到集群计算机各节点,实现对象分布式的并行计算。设计了对象化并行计算框架并选取电网可靠。I生计算典型业务场景,对算法进行了验证和应用。算法对大幅提升数据型电网统计分析的计算效率具有重要作用。     

集控站中培训仿真系统面向对象数据库的设计

描述了变电站仿真培训系统数据的特点以及IEC61970CIM公共信息模型在仿真培训系统中的应用,设计了一个常驻内存的实时面向对象数据库系统(MMRT-OODB),给出了以对象数据模型为基础的数据库体系结构。     

通信综合网管监控系统功能实用化应用

INMS通信网管监控系统采用面向对象的思想．用被管理对象来表示系统监视和控制的资源,以建立对象模型来进行故障管理和统计。文章介绍了通信监控系统功能实用化的原理和方法,以及INMS监控系统的应用。该系统能够全程多方位地发现告警,完善了通信监控网的功能。     

Object Modeling of Data and DataSets in the International Standard IEC 61850

In the past decade, new communication schemes have been designed and retrofitted into substations by utilities to integrate data from relays and Intelligent Electronic Devices (IEDs). The idea of standardizing the language of communication between IEDs has evolved as the key for the advancement of connectivity and interoperability within a SA system. The most important outcome of this standardization process has been the IEC 61850 standard. IEC 61850 is an abstract application layer protocol aimed at providing interoperability between a variety of substation and feeder devices by describing how devices are to communicate in a substation as well as the related system requirements. In this paper, the authors describe the standard's application-view model and present the use of OO methodology and techniques for the modelling and implementation of the Data and Dataset application-view object models of the standard. The target audience for this paper includes anyone interested in getting an overview of the IEC 61850 international standard, and understanding how the object-oriented models proposed in the standard standardize the data found in IEDs and the communication of this date between substation devices.      

支持CIM的实时对象数据库管理系统

利用面向对象的实时数据库直接存储公用信息模型（CIM）的方法构建遵循标准的系统,以避开模型转换,提高效率。从CIM建立、基于组件接口规范（CIS）的多层访问接口、支持可扩展置标语言（XML）格式的导入/导出工具、基于CIM的数据浏览工具、混合平台的解决方案等方面入手,介绍一个支持CIM的面向对象实时数据库管理系统RCS-9001 RTOODBMS的设计与实现。     

An open, object-based model as the basis of an architecture fordistribution control centers

The author presents an architecture suited to a distribution management system (DMS) and a conforming DMS design which uses a model of the distribution plant as the centerpiece to achieve dual goals of integration and openness. The modeling technique presented draws heavily on object-oriented technology. In this architecture the power system is considered as a really big object. Certain attributes are formalized, which distinguishes such BigObjects from other objects which might be used in the implementation of a system using the architecture which called big object modeling (BOM). BOM is a system architecture defining the high-level relationship between BigObjects and applications. It creates a specialized application programming interface, where modeling is distinguished from other applications. The architecture is presented by discussing its essential qualities     

主动的对象数据库技术及其在电力系统自动监视与控制中的运用

介绍了主动数据库技术,面向对象的数据库技术,并提出了主动的对象数据库以及把它应用于电力系统自动监视与控制的设想。文中给出了触发事件的定义示例,给出了电力系统的类以及对象的定义示例,并说明了应用这一数据库技术于电力系统自动监视与控制的过程。     

主动的对象数据库技术及其在电力系统自动监视与控制中的运用

介绍了主动数据库技术 ,面向对象的数据库技术 ,并提出了主动的对象数据库以及把它应用于电力系统自动监视与控制的设想。文中给出了触发事件的定义示例 ,给出了电力系统的类以及对象的定义示例 ,并说明了应用这一数据库技术于电力系统自动监视与控制的过程     

Interactive object-oriented simulation of interconnected powersystems using SIMULINK

An object-oriented power system simulation environment is constructed using the SIMULINK dynamic system modeling software. The environment is well suited to educational purposes, because the user interface is interactive and intuitive with a graphical, object-oriented model representation. For small system studies, a model is constructed in block diagram form with one block for each system component. For large scale simulations, the dynamics of portions of the network can be combined into collective blocks, with parameters managed as data arrays accessed indirectly using string mnemonics. The advanced numerical capabilities built into SIMULINK provide an excellent simulation engine for the nonlinear models. Offline analysis is available through the extensive capabilities of the MATLAB environment     

浅析IEC61850在变电站通信网络中的应用

IEC61850是国际电工委员会(IEC)制定的变电站内通信网络和系统标准体系,目的是实现不同厂家生产的控制、监视和保护设备的信息共享,使变电站自动化系统成为开放系统,同时不同设备间具有互操作性。在分析IEC61850标准的信息分层、面向对象的数据对象统一建模、数据自描述和抽象通信服务映射等概念的基础上,建立符合IEC 61850标准的变电站内通信系统的框架模型;分析由于应用IEC 6 1850标准带来变化及如何面对突出的网络安全问题。     

Modeling and analysis of unbalanced distribution system using object-oriented methodology

An object-oriented (OO) model for three-phase unbalanced distribution system is proposed and implemented. Single-phase system components are initially modeled using object-oriented methodology. Later, it is extended to unbalanced three-phase distribution system using the “composition” technique of object-oriented design. The main features of object-oriented methodology such as “inheritance”, “aggregation”, “association” and “polymorphism” have been exploited to obtain a better software model. Three-phase distribution load flow analysis and short circuit analysis modules have been developed using the proposed object model. The performance of the developed software has been tested on IEEE 13-Node, IEEE 34-Node and IEEE 123-Node distribution systems.     

业扩报装空间辅助决策支持系统的设计与实现

在开发传统的电力业扩报装系统的基础上,运用面向对象的分析方法,采用插件式的开发方式,实现了管理信息系统（MIS）与地理信息系统（GIS）的结合,使GIS为传统MIS提供了强大的空间数据支持,提出了业扩报装空间辅助决策支持系统的设计思想和实现方式。系统采用Oracle Spatial作为后台数据库,运用大系统控制论建立了电力综合数据库、方法库、模型库和知识库协同系统,实现了协同工作模式下的业务流灵活配置和流程执行的实时跟踪,将模型库及其管理系统引入GIS,在改进的迪杰斯特拉算法和A* 启发式算法的基础上,结合决策树分类算法实现了最优报装解决方案的自动生成。此外,还阐述了系统实现时的关键技术,如空间数据与属性数据的关联等,具有一定的理论意义和广阔的应用前景。     

馈线自动化终端设备智能接入的研究

在IEC 61850通信体系应用到馈线自动化的基础上,利用互换性原理实现终端设备的智能接入研究.基于资源定义机制和需求激励的资源匹配机制,利用地理信息系统（GIS）提供生产资源对象的IP地址实现了资源对象的自动匹配.提出通过主动获取GIS的实时拓扑关系,建立系统的工程实例化拓扑模型,实现了设备在系统中的对象化.将变电站配置描述语言（SCL）模型转换成公共信息模型（CIM）,解决了馈线终端模型和配电主站模型不一致带来的差异性.通过对资源确定、关联、拓扑模型的更新、资源对象的连接以及模型的转换,最终实现馈线终端的智能接入.     

边坡稳定极限平衡分析软件研究

采用面向对象技术研制了一个边坡稳定极限平衡分析软件系统.该软件系统集成前处理建模、极限平衡分析计算和结果后处理于一体,具有类Windows风格.该软件自带绘图系统,前处理过程用对象化建模,界面友好,操作方便;后处理主要是计算结果分析和可视化图形显示,其界面形象、直观.笔者还给出了一个实际工程的算例验证了该软件的实用性.