Exact analysis of three-phase rectifiers with constant voltage loads

In this paper, an exact solution of a circuit model for a three-phase rectifier with constant-voltage load and ac-side reactance that operates in the continuous conduction mode is presented. Obtained results are compared to the results provided applying sinusoidal approximation, published previously. It is shown that the sinnsoidal approximation provides acceptable re. suits at low output voltages, with the accuracy being decreased for the output voltages approaching to the discontinuous conduction mode boundary. Computational complexity of the exact solution is about the same as for the solution obtained applying sinusoidal approximation. Index Terms--Alternator, commutation, converter, generator, load matching, load regulation.