时变时滞广域电力系统稳定性分析  

Stability Analysis of the Wide-Area Power System with Time-Varying Delay

作　　者：彭思源 肖会芹[1] 林惠潮 PENG Siyuan;XIAO Huiqin;LIN Huichao(College of Electrical and Information Engineering,Hunan University of Technology,Zhuzhou Hunan 412007,China)

机构地区：[1]湖南工业大学电气与信息工程学院,湖南株洲412007

出　　处：《湖南工业大学学报》2021年第3期62-67,共6页Journal of Hunan University of Technology

基　　金：国家自然科学基金资助项目(61703153);湖南省研究生科研创新基金资助项目(CX20201048)。

摘　　要：针对含有时变时滞的广域电力系统稳定性进行了分析。首先,建立含有时变时滞的广域电力系统模型,构建新型L-K泛函。然后,引入一个关于时变时滞的二次函数,再通过积分不等式得到更低保守性的时变时滞广域电力系统的稳定性判据。最后,采用典型的二阶系统和四机十一节点系统,在Matlab上进行仿真,并将所得结果与其他文献结果进行比较分析,证明了所提出方法的可行性和优越性。An analysis has been made of the stability of a wide-area power system with time-varying delay.First,a wide-area power system model with time-varying delay is to be established,followed by the construction of a new L-K functional.Then,by introducing a quadratic function with respect to time-varying delay,a more conservative stability criterion can be obtained through integral inequality of the wide area power system with time-varying delay.Finally,the typical second-order system and four machine eleven bus system are simulated on Matlab,with the results compared with the results of other literatures,thus verifying the feasibility and superiority of the currently proposed method.

关 键 词：时变时滞 电力系统 L-K泛函 积分不等式 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]