New coordinated control design for thermal-power-generation units / Yinsong, Wang in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3848 - 3856 Titre : New coordinated control design for thermal-power-generation units Type de document : texte imprimé Auteurs : Yinsong, Wang, Auteur ; Yu, Xinghuo, Auteur Année de publication : 2011 Article en page(s) : pp. 3848 - 3856 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Backstrepping method Coordinated passivation Nonlinear control Power-generation unite Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A nonlinear model combining boiler-turbine-generator dynamic characteristics for a thermal-power-generation unit is first introduced. Based on the nonlinear model, a new coordinated control design is proposed using the backstepping method incorporating the coordinated passivation approach that considers the entire boiler-turbine-generator system as a whole. The control design consists of three subcontrollers, namely, a main steam valve controller, an excitation controller, and a fuel flow controller. It is shown that the proposed coordinated control design can ensure asymptotical stability of the closed-loop system and improve the electric power regulation performance. Simulation results based on a practical thermal-power-plant model are presented to show the effectiveness of the proposed control design. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5410143 [article] New coordinated control design for thermal-power-generation units [texte imprimé] / Yinsong, Wang, Auteur ; Yu, Xinghuo, Auteur . - 2011 . - pp. 3848 - 3856. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3848 - 3856 Mots-clés : Backstrepping method Coordinated passivation Nonlinear control Power-generation unite Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A nonlinear model combining boiler-turbine-generator dynamic characteristics for a thermal-power-generation unit is first introduced. Based on the nonlinear model, a new coordinated control design is proposed using the backstepping method incorporating the coordinated passivation approach that considers the entire boiler-turbine-generator system as a whole. The control design consists of three subcontrollers, namely, a main steam valve controller, an excitation controller, and a fuel flow controller. It is shown that the proposed coordinated control design can ensure asymptotical stability of the closed-loop system and improve the electric power regulation performance. Simulation results based on a practical thermal-power-plant model are presented to show the effectiveness of the proposed control design. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5410143

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