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Dynamic Control of a Current-Source Inverter/ Double-Wound Synchronous Machine System for AC Power Supply

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3 Author(s)
Kataoka, T. ; Department of Electrical and Electronic Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, Japan 152. ; Watanabe, E.H. ; Kitano, Jun'Ichi

A novel dc-to-ac conversion system consisting of a load commutated current-source inverter, a double-wound synchronous machine, a position sensor, and a control circuit is being used increasingly as an ac power source in dc electric railway coaches. A detailed transient analysis of this dc-to-ac conversion system is presented and a new dynamic control strategy is proposed. It is shown that the proposed control not only stabilizes the output frequency and voltage of the system over a wide range of variations in the dc input voltage and/or the output load, but also secures safe commutation of thyristors in the inverter during transients.

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Industry Applications, IEEE Transactions on  (Volume:IA-17 ,  Issue: 3 )