Title :
Parallel converters supplying a six-phase machine with circulating current cancellation
Author :
Santos, E. C dos, Jr. ; Jacobina, C.B. ; Rocha, N. ; Silva, E. R C da
Author_Institution :
Dept. de Eng. Eletr., Univ. Fed. de Campina Grande, Campina Grande, Brazil
Abstract :
In this paper, a six-phase machine drive system fed by parallel converters is proposed. It is composed of two parallel three-phase to three-phase dc-link converters without isolation transformers. The proposed topology presents fault tolerance characteristics. The model of the system is derived, and it is shown that the reduction of circulating current is an important objective in the system design. Suitable control strategy of the system based on odq approach, is developed. Simulated and experimental results are presented.
Keywords :
asynchronous generators; drives; fault tolerance; machine control; power convertors; circulating current cancellation; control strategy; dc-link converters; doubly fed induction generators; fault tolerance characteristics; multiphase induction machines; parallel converters; six-phase machine drive system; Circuit faults; Converters; Fault tolerant systems; Inverters; Leg; Topology; Voltage control;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2010 IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-5286-6
Electronic_ISBN :
978-1-4244-5287-3
DOI :
10.1109/ECCE.2010.5617773
