document: CRONE control : principles and extension to time-variant plants with asymptotically constant coefficients The principles of CRONE control , a frequency-domain robust control design methodology based on fractional differentiation , are presented . Continuous time-variant plants with asymptotically constant coefficients are analysed in the frequency domain , through their representation using time-variant frequency responses . A stability theorem for feedback systems including time-variant plants with asymptotically constant coefficients is proposed . Finally , CRONE control is extended to robust control of these plants
doc_bio_tags: B I O O O O O O O O B I I O O O B I O O O B I O O O O B I O O O O O O O O B I I O O O O O O O O O O O O O O O O B I O B I O O O O B I I O O O O O B I O O O B I O O O
extractive_keyphrases: crone control asymptotically constant coefficients fractional differentiation stability theorem feedback systems robust control
abstractive_keyphrases: time-variant plants frequency-domain robust control design time-variant frequency responses automatic control