Title :
A four level rectifier-inverter system for drive applications
Author :
Sinha, Gautam ; Lip, Thomas A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA
Abstract :
Multilevel converter technology has been receiving increased attention, especially for high power applications. In particular, three level drive systems have been extensively reported. In this paper, a four level rectifier-inverter system is investigated for drive applications. A dynamic control algorithm is described which balances the voltages on a 4 level rectifier-inverter drive system primarily from the rectifier. The proposed control method can also generate unity power factor currents at the utility interface. The inverter modulation is relatively unconstrained and modified to implement a zero sequence compensation for added voltage balancing. Simulation results are used to verify the efficacy of the control algorithm
Keywords :
AC motor drives; invertors; machine control; power factor; rectifying circuits; added voltage balancing; control algorithm efficacy; drive applications; dynamic control algorithm; four level rectifier-inverter system; inverter modulation; unity power factor currents; utility interface; zero sequence compensation; Capacitors; Diodes; Drives; Inverters; Reactive power; Rectifiers; Switches; Switching converters; Topology; Voltage control;
Conference_Titel :
Industry Applications Conference, 1996. Thirty-First IAS Annual Meeting, IAS '96., Conference Record of the 1996 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-3544-9
DOI :
10.1109/IAS.1996.560201
