%0 DATA
%A Yimajian, Yan
%D 2019
%T Modeling And Stability Analysis Of A Series Single-Phase Power Electronic Based Power System
%U https://hammer.figshare.com/articles/thesis/Modeling_And_Stability_Analysis_Of_A_Series_Single-Phase_Power_Electronic_Based_Power_System/7381946
%R 10.25394/PGS.7381946.v1
%2 https://hammer.figshare.com/ndownloader/files/13653386
%K single-phase AC system
%K power converters
%K lighting control
%K stability analysis.
%K LED
%K airfield lighting
%K impedance measurement
%K Power electronics
%X Tightly regulated power converters behave as constant power loads which may introduce instability in power systems. Prior to this work, the design-oriented stability criteria of DC and three-phase AC systems has been extensively studied, while the stability of single-phase AC power systems has received less attention. In this research, the modeling and stability analysis of single-phase AC power systems is studied. In particular, this research focuses on a system architecture where loads are connected in series and powered by a current source. Based on the proposed current source and load power electronic based topologies, which are typically used in airfield lighting systems, three types of system characterization are developed: waveform-level model, average-value *qd* model, and *qd* impedance/admittance measurement. Each approach has its own advantages and drawbacks, but the result - a frequency-domain (s-domain) representation of the system, is identical. Applying the generalized Nyquist stability criterion, the small-signal stability criteria of the system is developed. It is shown that the predictions of the system stability using these three approaches are consistent.