• français
    • English
    français
  • Login
Help
View Item 
  •   Home
  • Laboratoire d'Electrotechnique et d'Electronique de Puissance (L2EP) de Lille
  • View Item
  • Home
  • Laboratoire d'Electrotechnique et d'Electronique de Puissance (L2EP) de Lille
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

A Novel Method for Accelerating the Analysis of Nonlinear Behaviour of Power Grids using Normal Form Technique

Communication avec acte
Author
UGWUANYI, Nnaemeka Sunday
ccTHOMAS, Olivier
543315 Laboratoire d’Ingénierie des Systèmes Physiques et Numériques [LISPEN]
MARINESCU, Bogdan
473973 Laboratoire des Sciences du Numérique de Nantes [LS2N]
ccKESTELYN, Xavier
13338 Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 [L2EP]

URI
http://hdl.handle.net/10985/18014
DOI
10.1109/isgteurope.2019.8905682
Date
2019

Abstract

Today's power systems are strongly nonlinear and are becoming more complex with the large penetration of power-electronics interfaced generators. Conventional Linear Modal Analysis does not adequately study such a system with complex nonlinear behavior. Inclusion of higher-order terms in small-signal (modal) analysis associated with the Normal Form theory proposes a nonlinear modal analysis as an efficient way to improve the analysis. However, heavy computations involved make Normal Form method tedious, and impracticable for large power system application. In this paper, we present an efficient and speedy approach for obtaining the required nonlinear coefficients of the nonlinear equations modelling of a power system, without actually going through all the usual high order differentiation involved in Taylor series expansion. The method uses eigenvectors to excite the system modes independently which lead to formulation of linear equations whose solution gives the needed coefficients. The proposed method is demonstrated on the conventional IEEE 9-bus system and 68-bus New England/New York system.

Files in this item

Name:
L2EP_ISGT_2020_UGWUANYI.pdf
Size:
584.0Kb
Format:
PDF
Embargoed until:
2020-03-29
View/Open

Collections

  • Laboratoire d'Electrotechnique et d'Electronique de Puissance (L2EP) de Lille

Related items

Showing items related by title, author, creator and subject.

  • Power System Nonlinear Modal Analysis Using Computationally Reduced Normal Form Method 
    Article dans une revue avec comité de lecture
    UGWUANYI, Nnaemeka Sunday; MARINESCU, Bogdan; ccTHOMAS, Olivier; ccKESTELYN, Xavier (MDPI, 2020)
    Increasing nonlinearity in today’s grid challenges the conventional small-signal (modal) analysis (SSA) tools. For instance, the interactions among modes, which are not captured by SSA, may play significant roles in a ...
  • A New Fast Track to Nonlinear Modal Analysis of Power System Using Normal Form 
    Article dans une revue avec comité de lecture
    UGWUANYI, Nnaemeka Sunday; ccTHOMAS, Olivier; MARINESCU, Bogdan; MESSINA, Arturo Roman; ccKESTELYN, Xavier (Institute of Electrical and Electronics Engineers, 2020)
    The inclusion of higher-order terms in small-signal (modal) analysis augments the information provided by linear analysis and enables better dynamic characteristic studies on the power system. This can be done by applying ...
  • A normal form-based power system out-of-step protection 
    Article dans une revue avec comité de lecture
    UGWUANYI, Nnaemeka Sunday; ccKESTELYN, Xavier; ccTHOMAS, Olivier; ccMARINESCU, Bogdan; WANG, Bin (Elsevier BV, 2022-07)
    This paper proposes a new system-level application for monitoring out-of-step (OOS) events in power systems. As already known, amplitude-dependent frequency shift is a nonlinear phenomenon of electromechanical oscillations ...
  • Solving Magnetodynamic Problems via Normal Form Method 
    Article dans une revue avec comité de lecture
    UGWUANYI, Nnaemeka S.; ccCLENET, Stephane; ccKESTELYN, Xavier; ccTHOMAS, Olivier (Institute of Electrical and Electronics Engineers (IEEE), 2022-03)
    Closed-form formulations are difficult to find when the material behavior law is nonlinear. A linear approximation, on the other hand, has a very narrow range of validity. In this communication, the Normal Form (NF) method ...
  • An Accurate Third-Order Normal Form Approximation for Power System Nonlinear Analysis 
    Article dans une revue avec comité de lecture
    TIAN, Tian; ccTHOMAS, Olivier; AMANO, Hiroyuki; MESSINA, Arturo Roman; ccKESTELYN, Xavier (Institute of Electrical and Electronics Engineers, 2018)
    The inclusion of higher-order terms in small-signal (modal) analysis has been an intensive research topic in nonlinear power system analysis. Inclusion of second-order terms with the method of normal forms (MNF) has been ...

Browse

All SAMCommunities & CollectionsAuthorsIssue DateCenter / InstitutionThis CollectionAuthorsIssue DateCenter / Institution

Newsletter

Latest newsletterPrevious newsletters

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales