Backup diff of Research(No. 6)

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[[FrontPage]]

#contents


** Research Theme [#d037edec]
- Nonlinear Dynamics and Control
- Power Conversion and Processing
- Nano-Mechanical System
- Power Network
- SIZE(20){COLOR(#333399){Nonlinear Dynamics and Control}}

>is a common research object in Professor Hikihara's labratory.  Our purpose here is twofold.  One is to understand how dynamics emerge from nonlinearty of systems, and the other is to establish how to control and synthesize them as engineering applications.  Chaos is a famous nonlinear phenomenon resulting from nonlinearity, which was experimentally found in 1961 by Dr. Yoshisuke Ueda, Emeritus Professor, Electrical Engineergin Department, Kyoto University.  Various nonlinear phenomena are also well known which include regular/subharmonic oscillations, local/global bifurcation, and smooth/fractal basin boudaries.  Not only analysis of nonlinear phenomena and also control of nonlinear phenomena or synthesis of nonlinear systems is also our purpose of research.  Delayed-feedback control of magneto-elastic chaos was experimentally archived by Professor Hikihara [Hikihara and Kawagoshi, Phys. Lett. A. 211, 29 (1996)].  We are currently studying the following topics on nonlinear dynamics and control:  

-- Statistics of chaos;
-- Spatio-temporal dynamics of TDGL equation with application to superconductivity;
-- Dynamics and control of large coupled oscillators;
-- Bifurcation of switched dynamical systems; and 
-- Energy and power-based characterizations of synchronization.

>You can download several jouranal papers realted to the above topics in the following publication lists.

- SIZE(20){COLOR(#333399){Power Conversion and Processing}}
- SIZE(20){COLOR(#333399){Nano-Mechanical System}}
- SIZE(20){COLOR(#333399){Power Network}}

>is also a research obeject in nonlinear/hybrid dynamics and control.  Needless to say, power network is a massively huge physical network for energy management system of modern society.  Power network is regarded as a safety-critical system, because without electricity, we could not have lived a modern life.  Emergence of large cascading blackouts all over the world requires a new direction of research for grasping and taming dynamics of power network.  We are currently studying the following topics:  

-- Application of hybrid systems theory and control;
-- Non-holonomic mechanics and control of ac/dc composite systems; and
-- Coupled swing dynamics and global instability.

** Publication List [#xf785dc6]
- [[2007>PubList2007]]
- [[2006>PubList2006]]
- [[2005>PubList2005]]
- [[2004>PubList2004]]

** [[Ph.D Dissertation List >Ph.DList]] [#x5d39104]

** External Evaluation [#uaf10f69]
-[[By Dr. Ralph Abraham (2005):http://www.ralph-abraham.org/new/fulspec/japan.2005/report/kyoto.html]]
-[[By Dr. Ralph Abraham (2004):http://www.ralph-abraham.org/new/fulspec/japan.2004/report/kyoto.html]]
Backup diff of Research (No. 6)
