TECHICAL Series MATHEMATICS • INFORMATICS • PHYSICS Series PHILOLOGY Series ECONOMIC SCIENCES Sereies EDUCATIONAL SCIENCES Series LAW AND SOCIAL SCIENCES Series
Analysis of Transitory Regime for Three-Phase Inverter Based on Sine-Delta PWM Control Strategy
(Analiza regimului tranzitoriu al invertorului trifazat bazat pe strategia de comandă PWM sine-delta)
Vol LXII • No. 4B/2010
Florinel Dinu, Gheorghe Cremenescu
Universitatea Petrol - Gaze din Ploieşti, Bd. Bucureşti 39, Ploieşti
e-mail: gcremenescu@upg-ploiesti.ro

 Keywords   three-phase inverter, sine-delta PWM control strategy, transient regime with repeated initial conditions, Matlab toolbox.

 Abstract
The paper presents the mathematical model of the three-phase configurated circuits between inverter and inductive-resistive charge in transitory regime. For analysis transitory regime one determines the differential equations of the circuits and for their numerical solving one applies the method of the transient regime with repeated initial conditions. The numerical simulation of the mathematical model and the results were carried out using Matlab toolbox. The obtained numerical results are presented in tables and waveforms of voltage and current are graphically represented.

 Rezumat
Lucrarea prezintă modelul matematic al circuitelor trifazate configurate intre invertor şi sarcina inductiv-rezistivă in regim tranzitoriu. Pentru analiza regimului tranzitoriu se determină ecuaţiile diferenţiale ale circuitelor si pentru rezolvarea numerica a lor se aplica metoda regimului tranzitoriu cu condiţii iniţiale repetate. Simularea numerica a modelului matematic si rezultatele au fost realizate utilizând pachetul de programe Matlab. Rezultatele numerice obţinute sunt prezentate in tabele si reprezentate grafic tensiunile si curenţii.



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