Analysis of stability with parallel interconnection of direct current voltage converters

The stability condition “in the particular sense” of steady-state process with parallel interconnection of two increasing direct current voltage converters is considered. In each converter the control of the power transistor is realized with the help of pulse-width modulation. A mathematical model of parallel interconnection of the converters is obtained because of assuming of synchronous control of converters. For the analysis of stability the linearization of initial state equations in the neighborhood of the steady-state process is produced. Two operating conditions of converters are considered. The first corresponds to the regime of voltage stabilization by all the converters. In the second regime one of the converters stabilizes voltage, while another stabilizes current. The calculation of stability is produced and the comparison of parallel interconnection of converters and the equivalent direct current voltage converter is realized