铁路接触网最优主动控制研究

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Abstract Research purposes: In order to research the influence of the active control on the property of the railway catenary，the finite element model for the catenary is established，the whole quality of the model and the stiffness matrix data are calculated with Ansys software，the whole quality and whole stiffness matrix are resolved with KMExtract program． With these，the dynamics equation is established for the catenary． In order to simulate the system and design the controller easily，the modal reduction order method is used to reduce the system order and transform it into the equation of state for designing the LQR controller for the system，and the simulation analysis of the states of the catenary before and after taking the active control is made with siimulink．

Research conclusions: The research shows: ( 1) Taking the active control of the catenary can improve its vibration property． The maximum and minimum vibration values of the catenary can be cut by above 90%，and the mean square deviation can be cut by 70%． Therefore，the system property is much improved． ( 2) The active or semi － active control of the catenary becomes the important way to improve the catenary property when it is difficult to improve the catenary property by changing the catenary parameters．

Key words： catenary modal order reduction optimal control active control simulation analysis

Received: 16 December 2011

PACS:

U264． 3

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	YANG Gang
	LI Fu

Cite this article:

YANG Gang,LI Fu. Research on Optimal Active Control of Railway Caternary[J]. 铁道工程学报, 2012, 29(3): 79-84.

URL:

http://tdgcxb.crec.cn/EN/ OR http://tdgcxb.crec.cn/EN/Y2012/V29/I3/79

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