Tightly controlled power converters are often modeled as constant power load. In transportation system, the input filters are small and not much damped to save weight/volume. In order to know when the system becomes unstable with those small LC filters and high cut-off frequency, the conventional analysis based on an average model may not be accurate enough. In this paper, a new discrete-time model is proposed to investigate the behavior of the studied system and to take into account the switching effect. A stabilizer is also proposed to increase the maximum power. This system is composed of a dc-dc boost converter with a modified control, an LC filter, and a constant power load. Experimental results confirm the validity of the proposed tool.
Bifurcation Analysis and Stabilization of DC Power Systems for Electrified Transportation Systems
IEEE Transactions on Transportation Electrification ; 2 , 1 ; 86-95
2016-03-01
1827279 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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