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In rotary converter generation system (RCGS), power conditioning system (PCS) rotate with rotor and power modules, which are critical components in PCS, are subjected to cyclic acceleration loading. The aim of this study was to predict the fatigue strength of power modules under acceleration loading. We analyzed this fatigue strength using finite element analysis and predetermined fatigue lifetime...
This paper presents the thermal feasibility study of rotary converter generation systems (RCGS) which solve maintenance problem as wear of brush of slip rings of doubly-fed induction generators. The total structure of RCGS is revealed. The thermal analysis of the structure is conducted. The analytical result shows the structure fulfills the thermal limits of RCGS components under 5MW rated conditions...
A different topology for brushless doubly-fed induction generators is presented. A power conditioning system is mounted onto two coaxially connected wound rotors. Carbon brushes and slip rings are replaced by the wound rotors and the rotor-mounted power condition system, which bi-directionally exchanges power to the grid with appropriate amplitude and phase difference between the voltages applied...
A filter design technique using numerical simulation is described and an example is given of the application of our technique for inverters compliant with European standards. We first studied noise generation mechanisms of inverters with a combined method of magnetic field and an electric circuit. We then design X-capacitor filters for category C2 of the European standard using transmission property...
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