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Frequency methods only are used here for the study and control of continuous linear time periodic systems. Using time varying frequency responses defined by L. A. Zadeh in the 1950s, the second generation CRONE control is extended to the control of linear time periodic systems. This control strategy ensures, for the closed-loop system, a near stationary behavior, performances set by the designer,...
The principles of CRONE control, a frequency-domain robust control designmethodology based on fractional differentiation, are presented.Continuous time-variant plants with asymptotically constant coefficientsare analysed in the frequency domain, through their representation usingtime-variant frequency responses. A stability theorem for feedbacksystems including time-variant plants with asymptotically...
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