Self-oscillating DC-to-DC switching converters with transformer characteristics

Dept. d'Enginyeria Electronica, Electrica y Automatica, Univ. Rovira i Virgili, Tarragona, Spain
IEEE Transactions on Aerospace and Electronic Systems (Impact Factor: 1.76). 05/2005; 41(2):710 - 716. DOI: 10.1109/TAES.2005.1468760
Source: IEEE Xplore

ABSTRACT Fourth-order converters with both input and output filters are analyzed in self-oscillating sliding mode. The boost converter with output filter and the Cuk converter are shown to have stable dynamics and an equilibrium point with transformer characteristics. The analytical predictions are verified by experimental results.

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    • "are the steady-state averaged values of the instantaneous input and output port variables shown in Fig. 4(a) and n is the transformation ratio. In this regard, it has been demonstrated in [37] and [39] that the boost converter with output filter (BOF) and´Cuk converter have stable dc-transformer characteristics. Similarly, the synthesis of a power gyrator requires a switching structure leading to the following set of relations between the steady-state input and output variables [40], [41] g-gyrator type I 2 = gV 1 , "
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    IEEE Transactions on Power Electronics 03/2014; 29(3):1366-1381. DOI:10.1109/TPEL.2013.2261093 · 6.01 Impact Factor
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    • "This feature increases the system efficiency and capability. Based on this power system, our contribution proposes some improvement, these are: 1) the STATCOM including a block to compensate the current in the neutral wire of an induction generator and voltage asymmetries on the dc bus of the converter and 2) the battery bank is connected to a self-oscillating dc–dc converter [4] based in a relay feedback control [5]. This choice provides certain advantages over other options of bidirectional dc–dc converters [6], such as simplicity of design, good performance over a wide operating range, robustness, and lower cost. "
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