摘要
共振型低频振荡是较常见的一种低频振荡,当发生共振型低频振荡时,迅速找到扰动源的位置并能有效切除,对电网的稳定安全运行有重大意义。文中对扰动源定位的3种方法进行研究,比较各自的优缺点,提出共振型低频振荡扰动源定位的新策略,该策略可根据电网实际情况选择定位方法对扰动源进行准确定位。
With the expansion of the internet-scale of the grid and the advancement of area inter-connection, the probability of occur-rence of low-frequency oscillation continuously increases. Low-frequency oscillation of resonance mechanism which has the characteris-tics of quick start vibration is one kind of low-frequency oscillation. It can quickly converge if the disturbance source is soon removed.When low-frequency oscillation occurs, it is utmost important for the security and stability of power system to find disturbance sourceand remove it in time. This paper studies three methods of disturbance localization and compares their advantages and disadvantages. Atlast the article puts forward a new strategy for localization of power system low-frequency oscillation. According to the condition of grid,this strategy will choose one of the methods to locate low-frequency oscillation.
作者
周榆晓
刘旸
刘璐
ZHOU Yuxiao LIU Yang LIU Lu(Electric Power Research Institute of State Grid Liaoning Electric Power Co., Ltd., Shenyang, Liaoning 110006 State Grid Liaoning Electric Power Co., Ltd., Metrological Center, Shenyang, Liaoning 110168, China)
出处
《东北电力技术》
2017年第8期6-10,15,共6页
Northeast Electric Power Technology
关键词
低频振荡
扰动源定位
能量函数
混合动态仿真
行波延时
low-frequency oscillation
disturbance localization
energy function
hybrid dynamic simulation
wave delay
