The purpose of this thesis is to present, step by step, the stages of research and development that took place during the realisation of a peculiar input stage, belonging to a UPS for the North American market, developed by Riello UPS s.p.a. The system will be realised by exploiting the "Vienna Rectifier" circuit config- uration, appropriately modified in order to realise a three-phase PFC without neutral, digitally controlled by means of an overmodulation control technique with third harmonic injection. Starting from the project objectives, it will be reported the logic flux followed during the entire development of the system, analysing the performance gener- ated by different types of digital controllers such as PI, PR and PIR through an analytical, simulation and experimental approach. Different techniques that can be applied to implement the required overmod- ulation control will also be analysed, presenting progressively more optimal solutions.
Lo scopo di questa tesi è quello di presentare, passo passo, le fasi di ricerca e sviluppo susseguitesi durante la realizzazione di un peculiare stadio d’ingresso, appartenente ad un UPS destinato al mercato Nord americano, sviluppato da parte dell’azienda Riello UPS s.p.a. Il sistema in questione verrà realizzato sfruttando la configurazione circuitale "Vienna Rectifier", appositamente modificata al fine di realizzare un PFC tri- fase senza neutro, controllato digitalmente tramite la tecnica di controllo in sovramodulazione con iniezione di terza armonica. Partendo dagli obiettivi di progetto verrà presentato il flusso logico seguito durante l’intero sviluppo del sistema, analizzando le prestazioni generate da di- versi tipi di controllori digitali quali PI, PR e PIR tramite un approccio analitico, simulativo e sperimentale. Verranno analizzate, inoltre, diverse tecniche applicabili al fine di implementare il controllo in sovramodulazione richiesto, presentando soluzioni via via più ottimali.
Analisi e simulazione dello stadio d'ingresso Vienna Rectifier per il mercato degli UPS Americano : Tecnica di controllo in sovramodulazione
SISSA, LORENZO
2023/2024
Abstract
The purpose of this thesis is to present, step by step, the stages of research and development that took place during the realisation of a peculiar input stage, belonging to a UPS for the North American market, developed by Riello UPS s.p.a. The system will be realised by exploiting the "Vienna Rectifier" circuit config- uration, appropriately modified in order to realise a three-phase PFC without neutral, digitally controlled by means of an overmodulation control technique with third harmonic injection. Starting from the project objectives, it will be reported the logic flux followed during the entire development of the system, analysing the performance gener- ated by different types of digital controllers such as PI, PR and PIR through an analytical, simulation and experimental approach. Different techniques that can be applied to implement the required overmod- ulation control will also be analysed, presenting progressively more optimal solutions.File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/72830