标题：Influence Analysis of Asynchronous Motors to the Grid Voltage-sag and Voltage Recovery
作者：Zhu, Chang-Qing; Wei, Bei; Qiao, Dong-Wei
作者机构：[Zhu, Chang-Qing; Wei, Bei] Shandong Univ, Sch Elect Engn, Jinan 250100, Peoples R China.; [Qiao, Dong-Wei] State Grid Taian Power Supply Co, Tai An 更多
会议名称：International Conference on Electrical Engineering and Mechanical Automation (ICEEMA)
会议日期：JUN 13-14, 2015
来源：INTERNATIONAL CONFERENCE ON ELECTRICAL ENGINEERING AND MECHANICAL AUTOMATION (ICEEMA 2015)
关键词：Asynchronous motor; Voltage-sag; Voltage recovery
摘要：Asynchronous motors are important loads in power systems. Motor performance has a great influence on a power grid, especially during the motor transient process such as voltage recovery after a grid fault cleared. In this paper the voltage-sag caused by motor dynamic is analyzed and an estimated formula is deduced on the system parameters to the degree of voltage sag. Then the phenomenon of delayed voltage recovery is simulated based on a power system model via MATLAB/SIMULINK to show the influence of system and motor parameters to the degree of voltage sag and low voltage dwell time.