Title :
A generalized input impedance model of three phase diode rectifier
Author :
Qin Lei ; Miaosen Shen ; Blasko, Vladimir ; Peng, Fang Zheng
Author_Institution :
United Technol. Res. Center, East Hartford, CT, USA
Abstract :
This paper presents a frequency domain input impedance model for three phase diode rectifier. Compared to literature work, this model has two significantly better features: (1) it is valid in a wide frequency range, which is from below fundamental frequency to more than 30 times of fundamental frequency; (2) it considers the effect of the ac line impedance and output dc impedance, by setting them as variables in the model; in another word, these impedance can be arbitrary value as long as the circuit works in continuous mode. It is tested that the model is still accurate even when the output filter inductor becomes zero. At different circuit parameters, including the extreme cases, the analytical modeling results and the numerical simulation results present excellent agreement, which demonstrates the accuracy of the analytical model. The resulting model is intended for stability analysis in a large ac power system involving significant number of rectification loads. Detailed derivation of the model is presented in this paper, and numerical simulation measurement results are also presented to validate the results.
Keywords :
circuit stability; frequency-domain analysis; impedance convertors; inductors; rectifying circuits; time-domain analysis; AC line impedance; analytical modeling; continuous mode; frequency domain input impedance model; numerical simulation; output DC impedance; output filter inductor; stability analysis; three phase diode rectifier;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2013 Twenty-Eighth Annual IEEE
Conference_Location :
Long Beach, CA
Print_ISBN :
978-1-4673-4354-1
Electronic_ISBN :
1048-2334
DOI :
10.1109/APEC.2013.6520671