东北电网广域动态测量系统

随着我国电网互联规模的不断扩大,负荷模型对系统仿真计算结果的影响已不容忽视。为了在仿真计算中选择合适的负荷模型,东北电网按照准确、可靠、安全、实用的原则,结合相量测量技术和通信、计算机技术的最新发展情况,组建了广域动态测量系统,采用分析中心站、子站体系结构捕捉电力系统在扰动情况下的动态过程及行为特征。该系统在东北网调配置了功能强大的分析中心站,选用了3个不同厂家的PMU装置,已覆盖12个主要厂站。该系统经受了长时间的多种考验,记录了实际电网大量动态过程,不但为仿真计算研究准备了校核数据,而且为电网安全稳定运行提供了全新的动态监测手段。

Wide Area Dynamic Measuring System of Northeast Power Grid

Along with the continual enlargement of power grid interconnection scale in China, the impact of load model on calculation results of system simulation cannot be neglected. To choose appropriate load model for simulation, according to the principles of accuracy, reliability, security and practicability and by means of integrating up-to-date technologies of phasor measurement, communication and computer, a wide area measurement system (WAMS) is built in Northeast Power Grid in China, in which the architecture containing analysis master station and phasor measurement (PMU) systems is adopted to catch dynamic processes and behavior features of power grid being disturbed. A powerful analysis master station of the WAMS is equipped in dispatching center of Northeast Power Grid, and different kinds of PMU devices provided by three manufacturers are equipped in twelve power plants and substations. The presented WAMS are tested by manifold ways in long period and by which a lot of dynamic processes of actual power grid are recorded, the recorded processes can offer the data for the check of simulation analysis, but also provide a brand-new dynamic monitoring measure for secure and stable operation of power grid.