大电网在线动态安全评估系统仿真效果评价  

Evaluation on Simulation Effects of On-Line Dynamic Security Assessment System for Bulk Power Grid

作　　者：丁平[1] 奚江惠 江嫚 高波[1] 陆俊[1] 严剑峰[1] 于之虹[1] 胡建勇[1] 

机构地区：[1]中国电力科学研究院,北京市海淀区100192 [2]华中电力调控分中心,湖北省武汉市430000

出　　处：《电网技术》2012年第12期153-158,共6页Power System Technology

摘　　要：基于在线数据仿真长南1线某次短路故障,进行机电暂态仿真与广域量测系统记录曲线的对比。阐述了对比分析的方法,总结了二者产生偏差的原因。指出在线分析程序需要改进的方向,即增加详细的锅炉模型,增加可变的短路过渡阻抗模型以及考虑变压器饱和的影响。指出了在线数据应该完善的方面,包括增加动态无功补偿设备的模型、提高各元件动态参数的准确性。文中所做的工作评价了在线动态安全评估系统数据和仿真程序的有效性,为该系统的改进提供了依据。According to results of on-line data based simulation of a certain short-circuit fault occurred in UHVAC transmission line from Changzhi to Nanyan, the electro-mechanical simulation results are compared with the recorded curves by wide area measurement system （WAMS）, and the effectiveness of both data and simulation software for on-line dynamic security assessment system are evaluated. The method for the comparative analysis is expounded and the reasons causing deviations in simulation results and measured curves are summarized. The measures to be adopted to improve the on-line assessment system, i.e., adding the detailed boiler models and variable short-circuit transition impedance models and considering the influence of power transformer saturation, are pointed out. To improve the performance of on-line dynamic security assessment system, the aspects to perfect the on-line data, such as adding the models of dynamic reactive power compensation devices, adding fast voltage regulator model for on-line data and improving the accuracy of dynamic parameters of components, are indicated.

关 键 词：仿真对比 锅炉模型 过渡阻抗 动态模型 参数 准确性 

分 类 号：TM72[电气工程—电力系统及自动化]