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Energy-based modelling and simulation of the interconnection of a back-to-back converter and a doubly-fed induction machine
Batlle Arnau, Carles; Dòria Cerezo, Arnau
Universitat Politècnica de Catalunya. Institut d'Organització i Control de Sistemes Industrials; Universitat Politècnica de Catalunya. ACES - Control Avançat de Sistemes d'Energia
This paper describes the port interconnection of two subsystems: a power electronics subsystem (a back-to-back AC/AC converter (B2B), coupled to a phase of the power grid), and an electromechanical subsystem (a doubly-fed induction machine (DFIM). The B2B is a variable structure system (VSS), due to the presence of control-actuated switches; however, from a modelling and simulation, as well as a control-design, point of view, it is sensible to consider modulated transformers (MTF in the bond graph language) instead of the pairs of complementary switches. The port-Hamiltonian models of both subsystems are presented and, using a power-preserving interconnection, the Hamiltonian description of the whole system is obtained; detailed bond graphs of all subsystems and the complete system are also provided. Using passivity-based controllers computed in the Hamiltonian formalism for both subsystems, the whole model is simulated; simulations are run to test the correctness and efficiency of the Hamiltonian network modelling approach used in this work.
Peer Reviewed
Àrees temàtiques de la UPC::Informàtica::Automàtica i control
Automatic control
Doubly-fed induction machine
Motors d'inducció
AC-AC power convertors
Asynchronous machines
Control system synthesis
Graph theory
Machine control
Power control
Variable structure systems
Motors elèctrics d'inducció
Institute of Electrical and Electronics Engineers

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