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This paper presents a sliding mode controller for a wound rotor synchronous machine, acting as a generator for an isolated load. The standard dq-model of the machine is connected to a resistive load. A sliding surface is defined in order to fulfill control objectives, and the Ideal Sliding Dynamics is proved to be stable. From the desired surface, the standard sliding methodology is applied, and a...
We review the classical single particle theory for the Gyratron and CARM (Cyclotron Autoresonance Maser) devices. We formulate the theory in order to map the relevant equations on those of Free Electron Laser magnetic Undulator devices. The article comments on the validity of such an approach and on the possibility of exploiting the wealth of scaling rules, currently adopted in the design of FEL devices,...
In this paper the properties exhibited by the IDA Passivity-based Controller (PBC) design methodology for developing Output-Feedback Controllers (OFC) are illustrated by means of the particular system composed by a synchronous generator connected to an infinite bus via a Thyristor Controlled Series Capacitors (TCSC). Two OFC are presented, one that does not involve the unmeasurable state and other...
This paper presents a new nonlinear passivity-based controller for a wound rotor synchronous machine, acting as a motor drive. From the standard dq-model the control objectives are stated, and the Port-controlled Hamiltonian model is also obtained. A simple power flow study allows to state the control goals in terms of reactive power compensation and ohmic losses reduction. Starting from the Hamiltonian...
The control problem of bi-directional (back-to-back) converters is approached in this paper. The controller design is carried out by following the so-called Interconnection and Damping Assignment - Passivity Based Control (IDA-PBC) technique. The contribution is two-fold, namely, the solution of the mixed, regulation and tracking, control problem imposed by the converter and the illustration that...
A systematic exposition of modeling of electromechanical systems in the bond graph formalism is presented. After reviewing electromechanical energy conversion and torque generation, the core element present in any electromechanical system is introduced, and the corresponding electrical and mechanical ports are attached to it. No modulated elements are necessary, since the energy representation of...
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