【作者】 乔奕；

【导师】 刘家军； 陶维青；

【作者基本信息】 合肥工业大学 ， 控制理论与控制工程， 2004， 硕士

【摘要】 可视化的发电厂保护整定综合系统是为减轻发电厂继电保护工作人员的劳动强度，降低保护设备的不正确动作率，提高发电厂设备的运行效率而开发。系统采用分层结构设计的模式，以人机交互界面和后台数据库为基础，按照模块挂接的方式实现各功能的连接。 本文分析了发电厂保护整定涉及的数据，并用关系数据库的设计方法设计和实现了系统的数据库；用面向对象建模的方法为发电厂的设备图元从三个不同的角度建立了对象模型、动态模型和功能模型，并且用C++语言实现了这些模型；在定值单模块的开发中，使用了通用数据报表工具Excel，并且用XLL加载宏技术扩展其功能，实现了动态数据报表；为保证数据的安全性，系统为用户提供了统一的数据维护界面。 该系统界面友好、操作方便、维护简单，在使用的过程中能够迅速地建立和维护工程画面，在网络拓扑中直接查询和审核定值单，并且支持用户自行编辑定值单格式。更多还原

【Abstract】 The visual integrated system of power plant’s protection setting is a software. It is designed for a power plant in order to reduce the workload of the relay protection workers, decrease the percentage of protection device’s false action, and increase the work efficiency of the device in power plants. The modules of this system are organized to three layers. Based on the top module man-machine interface and the bottom module database, the other modules are linked between the two modules to accomplish different functions.This paper analyses the data related to the protection calculation, designs and realizes the database of this system via relation database design’s method. By Object Modeling Technique (OMT), the meta graphics of devices in power plant are modeled into three types by different aspects, which are object model, dynamic model and functional model. Those models are realized in C++. Using Excel, Expanding its function via the XLL add-in technology, the report forms module of this system can achieve the dynamic data automatically. A unique data modification interface is provided to assert the security of system’s data.This system can be operated and maintained easily. It has a friendly man-machine interface. The graphs of the power plant’s network topology are also built and modified easily. The user of this system can query and look through report forms on the network directly. The format of the forms can be set by the user freely.更多还原