Using Gramian to analyze the mutual influence of power system with FACTS
Using Gramian to analyze the mutual influence of power system with FACTS
复制标题
DOI：
--
复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Gu Ming-xing
中科院分区：
文献类型：
--
作者：
Gu Ming-xing
在具有多个FACTS控制器的复杂电力系统中，控制器之间往往存在相互作用，导致FACTS控制不稳定。以四机两区域互联电力系统为对象，研究了含SVC和TCSC的四机两区域电力系统。采用基于Gramian的交互作用分析方法，在不同电气距离和系统负载情况下，分析了FACTS设备间的交互作用，结果表明，随着电气系统的减小或系统负载的增加，FACTS控制器间SVC与TCSC的交互作用越来越严重，使得控制器的动态性能变差，甚至可能影响系统的稳定性。通过时域仿真，验证了基于Gramian的电力系统FACTS装置互作用分析方法的有效性。
The interaction often exists between the controllers in the complex power system with multiple FACTS controllers,which leads to FACTS control instability. Taking a four-machine two-area interconnected power system for an object,the four-machine two-area power system including SVC and TCSC is studied. Using the Gramian based interaction analysis method,and under different circumstances of electrical distance and load on the system, the interaction between FACTS devices is analyzed,and the results show that with the decrease of electrical systems or increase of system load between FACTS controllers,the interaction between SVCand TCSC becomes more severe,which makes dynamic performance of the controller worse and even might affect the system stability. Through time domain simulation,it verifies the validity of interaction analysis method of Gramian-based power system FACTS device.