Hamid Atighechi

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Dynamic average-value modeling of power electronic-based systems has evolved and is widely used for system-level transient simulations and small-signal analysis. This paper presents an approximate average model for controlled line-commutated converters, which is developed based on the parametric average modeling methodology previously established for the(More)
Average-value modeling (AVM) plays an important role in design and analysis of power-electronic based systems such as flyback converters. The existing AVM techniques such as state-space and circuit averaging have been developed by many researchers. In this paper, a new AVM of the second order flyback converter is introduced using the state space averaged(More)
In British Columbia, there are generating stations including independent power producers that are located in remote areas with low population density. Interconnection of such remote generating stations may result in transient and small-signal instability due to long radial lines and weak inter-connections. In this paper, a small signal instability incident(More)
To accurately model the deep-rotor-bar phenomena in squirrel-cage induction machines for a wide range of frequencies, the distributed rotor may be generally represented as a high-order transfer function or an equivalent lumped-parameter ladder network. However, when lower-frequency electromechanical transients are of interest, an effective reduced-order(More)
Line-commutated converters (LCCs) are widely used in power system applications such as high voltage direct current (HVDC) systems. Dynamic average-value modeling (AVMs) of power-electronic-based systems has evolved greatly during the past decades and is now commonly used for small-signal analysis and system-level transient simulation studies. In this paper,(More)
Recently, the generalized averaging method (GAM) has received significant attention to effectively model and simulate dynamics of ac-dc power systems using dynamic phasors (DPs). The conventional analytical DP (ADP) models of line-commutated rectifiers (LCRs) have been derived based on switch functions, which are only valid for certain operating mode. In(More)
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