Title :
A selective harmonic elimination system for restoring and equalising DC link voltages in a multilevel active rectifier
Author :
Watson, Alan J. ; Wheeler, Patrick W. ; Clare, Jon C.
Author_Institution :
Univ. of Nottingham, Nottingham
Abstract :
This paper presents a reduced switching frequency, selective harmonic elimination technique for balancing DC link capacitor voltages in a cascaded H-bridge multilevel rectifier. The method controls power flow through the individual cells of the converter in an attempt to ensure that the DC link capacitor voltages for the cells converge, even when unbalanced loads are attached. Simulation and experimental results are presented to show the functionality and operation of the proposed technique.
Keywords :
PWM rectifiers; active networks; cascade networks; harmonics suppression; DC link capacitor voltages; cascaded H-bridge rectifier; multilevel active rectifier; power flow control; reduced switching frequency; selective harmonic elimination system; Capacitors; Nonlinear equations; Power system harmonics; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Rectifiers; Switching converters; Switching frequency; Voltage control; Converter control; Multilevel converters; Power factor correction; Pulse Width Modulation (PWM);
Conference_Titel :
Power Electronics and Applications, 2007 European Conference on
Conference_Location :
Aalborg
Print_ISBN :
978-92-75815-10-8
Electronic_ISBN :
978-92-75815-10-8
DOI :
10.1109/EPE.2007.4417394
