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Research Project

  • Nonlinear dynamics and its applications to engineering system

    is a common research object in Professor Hikihara's labratory. Our purpose here is twofold: Analysis and synthesis. One is to understand how dynamics emerge from nonlinearty of systems. 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 of Electrical Engineering, 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 stabilization 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 described by infinite-dimensional systems;
  • Energy and entropy;
  • and Passivity based system design.
  • Power conversion and processing

    is one of the applications of nonlinear dynamics and control focused by Professors Hikihara. We are currently studying the following topics:

  • Physical modeling of SiC power devices;
  • Application of SiC power devices to HF power conversion circuits;
  • Power packetization;
  • Power router for energy demand response;
  • and New Theoretical Formulation of Power Processing.
  • Mico-electromechanical system

    is an avant-garde research direction in our group. We are currently studying the following topics:

  • Coupled MEMS sensors;
  • Energy harvesting.
  • Electric power grid

    is also a research obeject in nonlinear/hybrid dynamics and control. Needless to say, a power grid is a massively huge physical network for energy management system of modern society and is regarded as a safety-critical system. Analysis and control based on nonlinear/hybrid dynamics are an essential key to the requirement. We are currently studying the following topics:

  • Application of hybrid systems theory and control;
  • Development of new devices for distributed power grid.

Publication List

You can download some of our archival journal articles below.


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Last-modified: 2016-04-30 (Sat) 11:33:27 (593d)