暂态稳定预警与预防控制系统的开发和应用  

Development and Application of Early Warning and Preventive Control System for Transient Stability

作　　者：张怡[1] 吴文传[1] 张伯明[1] 万源 孙素琴[3] 伍双喜[1] 

机构地区：[1]清华大学电机系电力系统国家重点实验室,北京市100084 [2]江西电力调度通信中心,江西省南昌市330077 [3]河南电力调度通信中心,河南省郑州市450052

出　　处：《电力系统自动化》2010年第3期44-48,共5页Automation of Electric Power Systems

基　　金：国家重点基础研究发展计划(973计划)资助项目(2004CB217904)~~

摘　　要：介绍了一套已在省级电网投入实际运行的暂态稳定预警与预防控制系统。首先,介绍了该系统的功能框架和软件模块构成。其次,分析了系统的关键技术与算法。系统实现了4种不同发电机、负荷增长方式下的传输极限算法,满足在线调度决策的需求。另外,实现了基于能量函数灵敏度的预防控制策略生成算法。结合工程实践,开发了若干实用化技术,如采用节点—开关模型以适应在线运行方式多变性的特点、孤岛稳定误判的解决方案、发电区和负荷区的自动分区方法等。This paper presents an early warning and preventive control system for transient stability. This system has been used in several provincial power grids. Firstly, the framework and the main modules of the proposed system are introduced. Secondly, the key technologies of the system are also presented. An algorithm is implemented to calculate total transfer capacity （TTC） under four different power increasing strategies. The preventive control algorithm, which is based on transient energy function sensitivity, is also realized. Thirdly, some engineering-oriented methods are introduced to solve practical problems, which emerge in real application. There are several examples： a node-breaker model is implied to adapt to the changing operation mode, a scheme is presented to avoid misjudge of stability in the case of island, generation areas and load areas can be automatically divided with new method. This work is supported by Special Fund of the National Basic Research Program of China （No. 2004CB217904）.

关 键 词：暂态稳定评估 预防控制 势能边界法 极限传输容量 灵敏度 

分 类 号：TM712[电气工程—电力系统及自动化] TP273[自动化与计算机技术—检测技术与自动化装置]