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A Generalized Predictive Controlled T-type power inverter with a deterministic dc-link capacitor voltage balancing approach

Opened Access A Generalized Predictive Controlled T-type power inverter with a deterministic dc-link capacitor voltage balancing approach
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Autor: Mohan, Charanraj
Director: García Franquelo, Leopoldo
Departamento: Universidad de Sevilla. Departamento de Ingeniería Electrónica
Fecha: 2015-07
Tipo de documento: Trabajo Fin de Master
Titulación: Máster en Electrónica, Tratamiento de Señal y Comunicaciones
Resumen: The thesis consists of implementing a Generalized Predictive Control (GPC) strategy for controlling the output voltage of the T-type converter with output LC filter, whose control signals are modulated by a fast three-dimensional Space Vector Modulation (SVM). The GPC strategy used for the T-type converter involves developing a system of dynamic equations from the output LC filter and load, which is transformed to a Controlled Auto-Regressive and Moving-Average (CARIMA) model in order to obtain a sequence of control signals, so that a cost function is optimized and the reference is tracked. The core of the thesis addresses the main problem of dc-link capacitor balancing. This is done by modeling the converter and deploying a mathematical analysis of the capacitor voltage difference dynamics, by singular perturbation approach. This analysis results in an explicit sinusoidal disturbance. Now, classical control theory is applied by using a Luenberger Observer (LO) in order to...
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Tamaño: 10.49Mb
Formato: PDF

URI: http://hdl.handle.net/11441/40039

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