电力系统及其自动化学报2019，Vol.31Issue(4)：118-122,5.DOI:10.3969/j.issn.1003-8930.2019.04.017
基于潮流模型的在线静态安全评估方法准确性探究
Study on the Accuracy of Online Static Security Assessment Method Based on Power Flow Model
柏筱飞 1张超2
作者信息
- 1. 天津大学电气自动化与信息工程学院,天津 300072
- 2. 天津大学电气自动化与信息工程学院,天津 300072
- 折叠
摘要
Abstract
Based on the traditional power flow model,the existing online static security assessment(OSSA)method has better performance. With the development of society,the load of power system increases,and the power flow model may not be accurate enough for the online OSSA method. In this paper,the gap between the power flow solution and the steady-state solution of a time-domain simulation model under fault is studied. Experimental results show that this gap exist generally,and it increases with the growing load. As a result,the accuracy of the SSA method based on the power flow model will be seriously affected in a heavy loading condition. A hybrid model is suggested to be applied in OSSA;under the premise of taking into account rapidity,the accuracy of the method is improved,which is helpful for the safe and stable operation of modern power system.关键词
在线静态安全评估/准确性/潮流模型/时域仿真模型Key words
online static security assessment(OSSA)/accuracy/power flow model/time-domain simulation model分类
信息技术与安全科学引用本文复制引用
柏筱飞,张超..基于潮流模型的在线静态安全评估方法准确性探究[J].电力系统及其自动化学报,2019,31(4):118-122,5.
