Cristin-resultat-ID: 1756730
Sist endret: 4. desember 2019, 15:51
Resultat
Leksikonartikkel
2019

Nyquist Stability Criterion and its Application to Power Electronics Systems

Bidragsytere:
  • Mohammad Amin
  • Chen Zhang
  • Atle Rygg
  • Maria Marta Molinas Cabrera
  • Eneko Unamuno og
  • Mohamed Belkhayat

Bok

Wiley Encyclopedia of Eletrical and Electronics Engineering
ISBN:
  • 9780471346081

Utgiver

John Wiley & Sons
NVI-nivå 1

Om resultatet

Leksikonartikkel
Publiseringsår: 2019
Antall sider: 22
ISBN:
  • 9780471346081

Klassifisering

Fagfelt (NPI)

Fagfelt: Elektrofag
- Fagområde: Realfag og teknologi

Beskrivelse Beskrivelse

Tittel

Nyquist Stability Criterion and its Application to Power Electronics Systems

Sammendrag

he Nyquist stability criterion is a graphical technique for determining the stability of a dynamical system. It relates the stability of a closed‐loop system to the open‐loop frequency response and open‐loop pole location. The Nyquist technique is limited to linear, time‐invariant (LTI) systems and has been widely used for designing and analyzing systems with feedback. A practical advantage of the technique is that it can be applied directly to measured frequency response data, due to which the technique is widely used in power electronics systems, where the complexity of a mathematical model would make its widespread use unfeasible. In its first part, this article guides through the fundamentals of the Nyquist stability criterion applied to feedback systems with SISO and MIMO representations. The generalized Nyquist criterion for MIMO systems is then discussed to illustrate its application to the stability assessment of three‐phase power electronics systems. In the second part, four representative cases are introduced to illustrate the applicability of Nyquist criterion–based stability analysis for power electronics systems: a dc‐dc converter, an HVDC system, a three‐phase converter, and a wind farm–HVDC grid integrated system. In the last section of this article, some advanced topics related to large‐scale power electronics systems are introduced. Inherent aspects that are essential for the proper use of these stability techniques are elaborated and discussed in detail, for instance, impedance transformation and modified sequence impedance or the system‐level analysis.

Bidragsytere

Mohammad Amin

  • Tilknyttet:
    Forfatter
    ved Illinois Institute of Technology
Inaktiv cristin-person

Chen Zhang

  • Tilknyttet:
    Forfatter
    ved Institutt for teknisk kybernetikk ved Norges teknisk-naturvitenskapelige universitet

Atle Rygg

  • Tilknyttet:
    Forfatter
Aktiv cristin-person

Maria Marta Molinas Cabrera

  • Tilknyttet:
    Forfatter
    ved Institutt for teknisk kybernetikk ved Norges teknisk-naturvitenskapelige universitet

Eneko Unamuno

  • Tilknyttet:
    Forfatter
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Wiley Encyclopedia of Eletrical and Electronics Engineering.

Webster, John G.. 2019, John Wiley & Sons. USALeksikon
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