电网广域动态安全监测系统及其动态模拟试验  

WIDE-AREA DYNAMIC SECURITY MONITORING SYSTEM FOR POWER NETWORK AND ITS DYNAMIC SIMULATION

作　　者：肖晋宇[1] 谢小荣[1] 李建[1] 张涛 罗建裕[3] 王小英[3] 吴玉林[3] 

机构地区：[1]清华大学电机工程与应用电子技术系,北京100084 [2]北京四方同创保护与控制设备有限公司,北京100085 [3]江苏省电力调度通信中心,江苏省南京市210024

出　　处：《电网技术》2004年第6期5-9,共5页Power System Technology

摘　　要：介绍了一种新型电网广域动态安全监测系统及其动态模拟试验。该系统由 3 部分组成:以相量测量单元(PMU)为核心的子站系统、以同步相量数据平台为核心的主站系统和分析中心站高级应用系统。PMU 在子站实现相量的同步实时测量和打包发送;主站系统对来自子站的相量数据进行再同步处理、存储管理以及转发,为高级分析功能提供实时的或历史的相量数据;分析中心站集成了用于实时在线监视与事后分析的软件。在清华大学电力系统大型发电设备安全控制与仿真国家重点实验室用 3 机 9 节点的试验系统,对该系统的性能进行了全面测试,进行了精度测试以及短路故障、线路无故障跳开和断线等多种扰动下的模拟试验。试验结果表明,该系统具备了对实际电网动态过程进行广域实时监测与分析的能力。The key functions of a novel wide-area dynamic security monitoring system (DSMS) for power system and its dynamic simulation test are presented, the DSMS is constituted by three parts, they are: substations based on phasor measurement unit (PMU), a main station with a real-time synchrophasor data platform and an analysis center integrated with various real-time and post-event analysis software. The synchronous real-time measurement of the phasors and their packing and transmitting are performed by PMU; the phasor data from the dispersed substation are re-synchronized, stored and transferred by the data concentrator (DC) in main station to provide an open RTDB (Real Time Database) access interface for the other analysis software packages; the software for real-time on-line monitoring and past-event analysis are integrated in analysis centre to realize dynamic security analysis and monitoring of power system. To validate the effectiveness of the proposed system, partly and as a whole, an all-around dynamic simulation test was carried out in a 3-machine and 9-bus power system, which was constructed in Tsinghua University affiliated 'State Key Laboratory of Control and Simulation of Power System and Generation Equipment'. The experimental simulations to be conducted include the measurement precision and dynamic responses of the system under the disturbances such as short-circuit fault, transmission line tripping, etc. The simulation results show that the presented DSMS possesses the capability to perform wide-area real-time monitoring and analysis on the dynamic processes occurred in practical power systems.

关 键 词：电网 广域动态安全监测系统 动态模拟试验 电力系统 

分 类 号：TM732[电气工程—电力系统及自动化]