Title :
AC drive systems based on six-phase machine with three neutrals
Author :
Sousa, Reuben P. R. ; Jacobina, Cursino B. ; Melo, Victor F. B. ; de Freitas, Nayara B.
Author_Institution :
Dept. of Electr. Eng., Univ. Fed. de Campina Grande, Campina Grande, Brazil
Abstract :
This paper presents an AC drive system based on six-phase machine with three neutrals. The machine side converter has nine power legs and can be connected to the grid through one single DC-link or three isolated DC-links. Compared with the conventional back-to-back AC six-phase machine drive system, the proposed drive system permits reducing the DC-link voltages, eliminating step-up transformer, and the voltage at the grid side converter has higher amplitude than that of the machine side, reducing the transmission I2R losses. The system model and PWM strategy are presented and experimental results demonstrate the feasibility of the system.
Keywords :
asynchronous machines; drives; AC drive system; isolated DC-links; machine side converter; multiphase induction machines; six-phase machine; step-up transformer elimination; Electrical engineering; Integrated circuit modeling; Inverters; Pulse width modulation; Switches; Torque; Vectors;
Conference_Titel :
Industry Applications (INDUSCON), 2014 11th IEEE/IAS International Conference on
Print_ISBN :
978-1-4799-5550-3
DOI :
10.1109/INDUSCON.2014.7059479
