Modelling of voltagecommutated dctodc converters in discontinuous operation mode
Abstract
In discontinuous operation mode, voltagecommutated dcconverters show at least two additional subintervals during the repetition period, commutationtime and currentflowduration. These pulsewidths depend on the momentary state of the circuit. In the effective system, the appertaining storages disappear, considered by a corresponding reduction of the state vector. Based on piecewise linear differential equations the sample and meanvalue behavior is exactly modelled. Sufficient smoothing provided, a continuous equivalent differential equation can be set up. Approximated by the first terms of its series expansion is leading to state space approximation models. Interpreted as continuous equivalent circuit, these models allow a simple approximated analysis.
 Publication:

PESC 1982; 13th Annual Power Electronics Specialists Conference
 Pub Date:
 1982
 Bibcode:
 1982ppes.conf..111G
 Keywords:

 Mode Transformers;
 Network Analysis;
 Pulse Duration Modulation;
 Voltage Converters (Dc To Dc);
 Discontinuity;
 Electric Choppers;
 Feedback Control;
 Mathematical Models;
 Mean Square Values;
 State Vectors;
 Electronics and Electrical Engineering