Abstract
Approximate expressions for the calculation of the load and control characteristics of the direct-voltage transducer were obtained by the fundamental harmonics method on the basis of the linear equivalent circuit of a direct-voltage transducer constructed on the assumption of current harmonicity in the series LC circuit. Comparison of the load characteristics constructed according to the grounded exact method based on the fitting method and the obtained approximate formulas shows that the fundamental harmonic method may be used for calculation of the static characteristics at the phase regulation in the continuous current mode with acceptable practical accuracy. In the discontinuous current mode, the method gives an overestimated output voltage, with the exception of the mode close to idling, where the voltage values are underestimated. The error of the basic harmonic method increases with the decrease in the relative duration of the pulses at the output of the inverter bridge.
Published Version
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