2017 International Symposium on Power Electronics (Ee) 2017
DOI: 10.1109/pee.2017.8171687
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Conformal mapping of impedance stability models for system-level dynamics assessments

Abstract: Abstract-Impedance stability methods are suitable for assessing the dynamics of power converters controllers, but also for ac/dc microgrids system level studies. This work proposes the combination of impedance modeling and conformal mapping for the identification of the dominant eigenvalues. The methodology is derived by linearization of the Cauchy-Riemann equations, which define the conformal mapping property of the Nyquist trajectories. The proposed technique is of high practical value, since it can be perfo… Show more

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Cited by 2 publications
(2 citation statements)
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“…7, it can be observed that there are no visual (-1,0) encirclements. In such cases, the conformal mapping property can be considered to assess stability [44]. This property is briefly explained below.…”
Section: B Case 2 -Two Drives Connected Remotelymentioning
confidence: 99%
See 1 more Smart Citation
“…7, it can be observed that there are no visual (-1,0) encirclements. In such cases, the conformal mapping property can be considered to assess stability [44]. This property is briefly explained below.…”
Section: B Case 2 -Two Drives Connected Remotelymentioning
confidence: 99%
“…From (14), in practice, identification of the sign of σ 1 is straightforward by inspection (of each Nyquist trajectory). More details, including a detailed derivation of (14), are given in [44]. Now, from Fig.…”
Section: B Case 2 -Two Drives Connected Remotelymentioning
confidence: 99%