Reza Nazemi - Electronic and Electrical Engineering Department University of Guilan Rasht, Iran
Alfred Baghramian - Electronic and Electrical Engineering Department University of Guilan Rasht, Iran
Behzad Golnargesi - Electrical Engineering Department Islamic Azad University of Mashhad Mashhad, Iran
Mahdi Zarif - Electrical Engineering Department Islamic Azad University of Mashhad Mashhad, Iran

This paper presents input impedance models for Multi-pulse rectifiers with series connected output that can be used for system stability and dynamic power quality analysis. This model is based on linearization harmonics and makes use of Systematic mapping functions that describe voltage and current transfer through multi-phase diode rectifiers. Magnetizing inductance and line commutation due to transformer leakage inductance are also took into account. Numerical simulation for 18-pulse rectifiers are presented for validation of the proposed model.

Input Impedance Modeling, Small-signal stability, Multi-pulse Rectifiers