abstract

• The increment of power electronics converters in the power systems has challenged the study of stability and resonance, causing that traditional approaches must be complemented with new tools, such as the so-called impedance-based method which is a powerful alternative to investigate these issues. This work tries to be an introductory self-contained tutorial, explaining the stages involved in the derivation of the impedance model in the dq-domain of electronic converters. The method is revised with depth, showing the highlights thoroughly to obtain the analytical model. In order to validate the model, the numerical identification is also addressed, which is a second approach to compute the impedance using measurements of the system. A test system (a power converter interconnected to the grid) is used to illustrate the concepts, and simulations in the frequency domain show the match between the two approaches. © 2021 IEEE.

authors

• Núñez Gutiérrez Ciro Alberto
• Segundo Ramírez Juan
• Visairo Cruz Nancy

publication date

• 2021-01-01

funding provided via

• Consejo Nacional de Ciencia y Tecnología, CONACYT  Grant

published in

• 2021 23rd IEEE International Autumn Meeting on Power, Electronics and Computing, ROPEC 2021  Proceedings

keywords

• Control systems; Generalized Nyquist criterion; Impedance-based method; Power electronics; Small-signal stability; VSC-based systems Frequency domain analysis; Power electronics; System stability; Electronic converters; Generalized Nyquist criterions; Impedance based methods; Impedance modeling; Power; Power electronics converters; Power-electronics; Small signal stability; Traditional approaches; VSC-based system; Power converters

Digital Object Identifier (DOI)

• 10.1109/ROPEC53248.2021.9668073

PubMed ID

start page

end page

volume

issue