Title :
A Low-Harmonic Diode Rectifier-Fed Drive Using Zero-Sequence Coupling between Machine and Grid.
Author :
Raju, N. Ravisekhar
Author_Institution :
GE Global Res., Niskayuna
Abstract :
A new method to reduce the harmonic currents drawn by diode rectifier-fed drives is presented. The method involves coupling the machine neutral to the grid side and injecting a zero sequence current through controlled use of the ´zero-vector´ state in the machine side inverter PWM. Simulation results are presented to show that harmonic levels within IEEE 519 limits can be achieved through this method. The main advantage of the proposed scheme is that no additional hardware components are needed and the current spectrum improvement is achieved through control modifications.
Keywords :
PWM invertors; drives; power system harmonics; rectifiers; IEEE 519 standards; PWM; diode rectifier-fed drive; harmonic currents; zero-sequence coupling; Bridge circuits; Diodes; Hardware; Inductors; Motor drives; Pulse width modulation; Pulse width modulation inverters; Rectifiers; Switches; USA Councils;
Conference_Titel :
Industry Applications Conference, 2007. 42nd IAS Annual Meeting. Conference Record of the 2007 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
978-1-4244-1259-4
Electronic_ISBN :
0197-2618
DOI :
10.1109/07IAS.2007.244
