| Autor: |
Belov, G. A., Malinin, G. V., Mityashin, N. P. |
| Zdroj: |
Russian Electrical Engineering; Aug2024, Vol. 95 Issue 8, p630-637, 8p |
| Abstrakt: |
The most complicated three-interval mode within a switching half-cycle of an LCC-type dc voltage converter is considered. The differential equations describing the processes within three intervals of converter linearity have been solved with the use of a vector-matrix method. Based on this, analytical relationships that make it possible to calculate transient processes according to a method of fitting have been obtained. This problem is complicated by the fact that, within the recharging interval of a capacitor connected in parallel to the secondary winding, the state vector differs from the state vectors within the other two intervals. The analytical relationships make it possible to determine the values of the state vector on the boundaries of half-cycles in a steady-state mode. This, in turn, makes it possible to find relationships for to calculating the average values of the output current and output voltage of the converter in a steady-state mode. It is shown that the ratio between the durations of the first two intervals of converter linearity in a steady-state mode does not depend on the output voltage. A program to calculate the characteristics of the steady-state mode is proposed, comparison of which with the characteristics obtained based on the simulation model has shown a good coincidence level, which confirms the fact that the obtained analytical relationships are quite correct. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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