On expansion of estimated stability region:Theory,methodology,and application to power systems  被引量:9

On expansion of estimated stability region:Theory,methodology,and application to power systems

在线阅读下载全文

作  者:LIU Feng WEI Wei MEI ShengWei 

机构地区:[1]State Key Laboratory of Power Systems, Department of Electrical Engineering, Tsinghua University, 100084 Beijing, China

出  处:《Science China(Technological Sciences)》2011年第6期1394-1406,共13页中国科学(技术科学英文版)

基  金:supported by the National Natural Science Foundation (Grant Nos 50525721, 50595411)

摘  要:The expansion of the estimated stability region plays an important role in the stability analysis of nonlinear systems.However,current literatures have not provided a complete mathematical description for this problem.This paper reveals that essentially the enlargement or the compression of the estimated stability region results directly from the diffeomorphism map,which is induced by the flow contained in the stability region.By proving that any integration algorithm with an order higher than one can approximately trace the flow of the system,a generalized methodology is proposed to construct various algorithms to realize the enlargement or the compression of the estimated stability region.With this methodology,two new algorithms based on symbolic calculation are suggested to reduce the computational burden.Furthermore,this methodology is applied to construct a scalable numerical algorithm to calculate the critical clearing time(CCT) of the power system for given faults.Tests on the IEEE 10-machine 39-bus system show that the computational results coincide well with the step-by-step simulation with high accuracy.

关 键 词:nonlinear system stability region power systems transient stability analysis 

分 类 号:O175.13[理学—数学] O212.1[理学—基础数学]

 

参考文献:

正在载入数据...

 

二级参考文献:

正在载入数据...

 

耦合文献:

正在载入数据...

 

引证文献:

正在载入数据...

 

二级引证文献:

正在载入数据...

 

同被引文献:

正在载入数据...

 

相关期刊文献:

正在载入数据...

相关的主题
相关的作者对象
相关的机构对象