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This paper proposes a control method to balance capacitor voltages for a four-switch single-stage two phase switched reluctance motor drive with integrated power factor correction. Initial alignment process is necessary for SRM before operation. However, the phase current is unbalanced during that time, which would cause over-voltage issue on DC capacitors as split-AC structure is used. This problem...
This paper proposes a four-switch single-phase single-stage isolated AC-DC converter with high efficiency for battery charging applications. By combining one LLC resonant unit and one T-type three-level unit with switch multiplexing technique, a single-stage single-phase isolated LLC resonant (SSPLLC) converter is proposed to achieve AC-DC conversion. In comparison with conventional two-stage isolated...
The temporal relation commonly exists in the concepts of events and it is a kind of natural connection among the information unit. It proposes a kind of temporal relation recognition of news events based on the co-occurrence of functional word and predicate for the news corpus in this paper. On the basis of extraction of news atomic events and excavation of determinants of temporal relations, construct...
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