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High gain DC-DC converters have become increasingly popular in recent years as there is greater need to interface low voltage DC sources such as solar cells and batteries with much higher voltage DC buses. A new high gain DC-DC converter with high gain, galvanic isolation and an integrated passive snubber network is proposed in the paper. In the paper, the general operation of the converter is discussed,...
Single stage power factor corrected (SSPFC) AC-DC converters are attractive in particular applications because they are less expensive than conventional two-stage converters. One of the main drawbacks of SSPFC converters, however, is that their intermediate DC bus voltage varies considerably when used in universal voltage range applications. A new method for reducing the DC bus voltage variation for...
Single stage power factor corrected (SSPFC) AC-DC converters are popular in industrial applications such as telecom because they are cheaper and smaller than conventional two-stage converters. The intermediate DC bus voltage of these converters, however, varies significantly when used in universal voltage range applications. A new AC-DC SSPFC resonant converter that can be operated with universal...
A new three-phase AC-DC converter with transformer isolation is proposed in this paper. The new converter is cheaper than previously proposed converters of the same type as it requires fewer passive and active components. Other features of the proposed converter include fewer conduction losses and less ripple current. In the paper, the operation of the proposed converter is explained and its features...
The advanced assets management and reliability are two important necessity to establish modern smart grids. Playing a vital role, transformers life extension directly increase system reliability and profitability. In this paper we evaluate fault current limiters influence on tensions ensue from external short-circuit currents. We use a mathematical model for fault current limiter, and exploit it in...
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