Title :
Practical problems associated with the operation of ASDs based on active front end converters in power distribution systems
Author :
Morán, Luis ; Espinoza, José ; Ortiz, Mauricio ; Rodríguez, José ; Dixon, Juan
Author_Institution :
Dept. of Electr. Eng., Univ. de Concepcion, Chile
Abstract :
This work presents and discusses different problems associated with the operation of ASDs based on active front end PWM rectifiers in power distribution systems. Problems generated with high frequency current harmonics, interaction with sensitive digital protection schemes, and the circulation of leakage grounding currents, are described. Practical problems generated by the interaction with existing ASDs based on diode rectifiers are also analyzed. Actual current and voltage waveforms associated with the operation of active front end based frequency changers in industrial power distribution systems illustrate the practical problems discussed in this paper.
Keywords :
PWM power convertors; diodes; distribution networks; frequency convertors; leakage currents; power conversion harmonics; rectifying circuits; variable speed drives; ASD; active front end PWM rectifiers; active front end converters; adjustable- speed drives; current waveform; digital protection schemes; diode rectifiers; frequency changers; frequency current harmonics; industrial power distribution systems; leakage grounding current; pulse width modulation; voltage waveform; Frequency; Power distribution; Power harmonic filters; Power system harmonics; Pulse width modulation; Pulse width modulation inverters; Rectifiers; Semiconductor diodes; Variable speed drives; Voltage control;
Conference_Titel :
Industry Applications Conference, 2004. 39th IAS Annual Meeting. Conference Record of the 2004 IEEE
Print_ISBN :
0-7803-8486-5
DOI :
10.1109/IAS.2004.1348837
