Popov, Evgeniy; Попов, Евгений; Pindeva, Liliya; Пиндева, Лилия

Electrical design of three-phase bridge diode rectifiers with active-capacitive load by matlab

2007

Proceedings of the Technical University – Sofia, 57(2), 2007, pp. 119-125

TU - Sofia

1311-0829 [issn]

Article

eng

Three-phase bridge diode rectifiers with active-capacitive load can be applied for energy conversion in simple wind power generators or in controlled a.c. electrical drives with squirrel-cage induction motors. They pose specific problems to the engineers. The known methods (the ”eastern”, based on the assumption that the voltage across the filtering capacitor is almost even and the “western”) are generally created for electrical design of single phase diode rectifiers. They are graphic-analytical and of course suffer from limited accuracy and waste of time. The r.m.s. value of the rectifier supplying current is specified. The standard supplyingpower related to the d.c. power, the output (load) characteristic, the harmonic components related to the first harmonic and the distortion coefficient of the supplying current are also obtained. MATLAB programs for exact graphical representation of the functions, participating in the full electrical design of the rectifiers and for computer-aided design implementation are created. PSPICE simulations confirm the results for some practical examples.

Reviewer prof. Petar Goranov. - Formulas, tables, diagr. - References, pp. 125