标题：Coupling characteristics and mechanism of the dynamic behaviors of high and low voltage power grid
作者：Yuan, Zhenhua ;Zhang, Hengxu ;Shi, Fang ;Ma, Changhui ;Liu, Gang
作者机构：[Yuan, Zhenhua ;Zhang, Hengxu ;Shi, Fang ] Department of Electrical Engineering, Shandong University, Jinan, China;[Liu, Gang ] Zibo Electric Power Bu 更多
会议名称：2nd International Conference on Power and Renewable Energy, ICPRE 2017
会议日期：September 20, 2017 - September 23, 2017
来源：2017 2nd International Conference on Power and Renewable Energy, ICPRE 2017
摘要：The increasing complexity of the dynamic behavior of low-voltage (LV) power grid makes it necessary for synchronous phasor measurement in LV grids. After a large disturbance, the dynamic behavior detected at the LV level is the coupling between dynamic behaviors of high-voltage (HV) major grid and LV local grid, which needs to be decoupled for different applications. This paper analyzes the response characteristics of LV power grid to a variety of common disturbances and proposes a mathematical model for the synchronized measurement data of high and low voltage grids. The coupling phenomenon of dynamic behaviors is explained for different load models. Finally, the theoretical analysis is verified by simulation.
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