| Abstract |
Resonant link voltage fed converters have recently been shown to have several advantages. The problems with using these topologies lie in higher voltage stresses, leading to GTO's as a feasible device family. However, the discrete pulse nature of the output of these converters necessitates an operation of the resonant link at frequencies much higher than the eventual pwm-frequency of the converter. lt has been believed, that due to tail current losses, GTO's are unsuitable for this. The paper shows that by optimisation of the resonant link for minimum loss, the converter can be operated at very high frequency without the expected loss penalty and then appIies these concepts to the study of the single bridge-arm topology as the building block for an dynamic power filter that can operate on power systems. |
