Eng. Ileana – Anamaria MITRAN, PhD Student, Prof. Eng. Alexandru BIOTOLEANU, PhD, Lecturer Eng. Mihaita LINCA, PhD
Rezumat
Analiza energetica a sistemului de actionare a fost realizata in mediul de programare Matlab Simulink, in care sa
considerat alimentarea unui motor asincron de la un invertor de tensiune ,utilizand in partea de comanda, pe rand,modulatia sinusoidala si modulatia trapezoidala. In urma simularii sistemului de actionare pentru cele doua variante de comanda s-a realizat analiza energetica pe baza randamentelor, factorului de putere si a pierderilor totale introduse de
fiecare metoda de modulare.
Cuvinte cheie: analiza energeticamotor de inductiePWMmodulatie sinusoidalamodulatie trapezoidala.
Abstract
The energetic analysis of the system has been conducted in Matlab Simulink environment, in witch was
consider an induction motor powered by a voltage i nverter, u sing , i n t urn, sinusoidal and trapezoidal modulation, as
command strategy. After t he s imulation o f the d rive s ystem for b oth command m ethods ( sinusoidal and t rapezoidal
modulation) an energetical analysis was performed, obtaining the effinciency, power factor and total l osses, induced by
each modulation method.
Keywords: energetical analysisinduction motorPWMsinusoidal modulationtrapezoidal modulation
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