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	Modification to adjoint system method for computing the controlling unstable equilibrium point of post-fault power system
	Wang Xiaoyang ; Min Yong ; Hou Kaiyuan
	2010-05-10 ; 2010-05-10
关键词	Practical/ gradient methods power system control power system faults power system transient stability/ post-fault power system adjoint gradient system method controlling unstable equilibrium point CUEP computing transient stability analysis IEEE 39-bus system/ B8110C Power system control C3340H Control of electric power systems
中文摘要	Recently, a new direct method, called the adjoint gradient system method, has been proposed for computing the controlling unstable equilibrium point (CUEP) in transient stability analysis. According to this method, the CUEP of the post-fault power system can be found by computing the asymptotic equilibrium points of the adjoint gradient system which is derived from the original system. A modification to the method mentioned above is made in this paper. It is found that there exists a family of adjoint gradient systems, for a nonlinear autonomous dynamic system such as a post-fault power system. These adjoint gradient systems share the same potential energy function and equilibrium points. To compute the CUEP of a post-fault power system more quickly, the appropriate adjoint gradient system, whose potential energy decreases fast, should be chosen as the integral equation, and the error control should be taken into consideration. Simulation results in the IEEE 39-bus system prove that the modified method can speed up the computing of CUEP of a post-fault power system efficiently.
语种	中文 ; 中文
出版者	State Power Corp. of China ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/21961]
专题	清华大学
推荐引用方式 GB/T 7714	Wang Xiaoyang,Min Yong,Hou Kaiyuan. Modification to adjoint system method for computing the controlling unstable equilibrium point of post-fault power system[J],2010, 2010.
APA	Wang Xiaoyang,Min Yong,&Hou Kaiyuan.(2010).Modification to adjoint system method for computing the controlling unstable equilibrium point of post-fault power system..
MLA	Wang Xiaoyang,et al."Modification to adjoint system method for computing the controlling unstable equilibrium point of post-fault power system".(2010).

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