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Sorgente di potenza a tensione e frequenza variabile con SPWM

Sorgente di potenza a tensione e frequenza variabile con SPWM

Apurva Patil

49,64 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2024
Materia
Tecnología: cuestiones generales
ISBN:
9786208180898
49,64 €
IVA incluido
Disponible

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L’uso efficiente della potenza disponibile per vari tipi di domanda è rimasto un problema importante nel campo dell’ingegneria elettronica. Soprattutto nel campo dell’elettronica di potenza, le richieste di questo tipo di sorgenti di energia aumentano a diversi livelli. Queste sorgenti di potenza sono generate con l’aiuto di diverse tecniche PWM e di diverse tecniche di controllo a seconda dell’applicazione. Pertanto, la sorgente di potenza a tensione e frequenza variabile a basso costo è stata progettata utilizzando il microcontrollore PIC. La configurazione del convertitore da ac a dc e dell’inverter da dc ad ac è chiamata convertitore dc-link. In questo sistema si utilizza una metodologia a controllo di fase per variare la tensione. Inizialmente, la tensione e la frequenza fisse della corrente alternata vengono convertite in corrente alternata di controllo e raddrizzate. Questa corrente continua viene nuovamente convertita in corrente alternata con l’aiuto di un inverter. La PWM utilizzata in questo sistema è la modulazione di larghezza di impulso sinusoidale (SPWM). Per la fonte di alimentazione sinusoidale VVVF viene sviluppato un inverter a ponte H a MOSFET. La tensione e la frequenza di uscita vengono visualizzate sul display LCD. Il sistema proposto fornisce un’ampia gamma di comandi di tensione e frequenza e le relative prestazioni a basso costo.

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