Development of floquet multiplier estimator to determine nonlinear oscillatory behavior in power system data measurement

Namki Choi, Hwanhee Cho, Byong Jun Lee

Research output: Contribution to journalArticle

Abstract

Measurement-based technology has been developed in the area of power transmission systems with phasor measurement units (PMU). Using high-resolution PMU data, the oscillatory behavior of power systems from general electromagnetic oscillations to sub-synchronous resonances can be observed. Studying oscillations in power systems is important to obtain information about the orbital stability of the system. Floquet multipliers calculation is based on a mathematical model to determine the orbital stability of a system with the existence of stable or unstable periodic solutions. In this paper, we have developed a model-free method to estimate Floquet multipliers using time series data. A comparative study between calculated and estimated Floquet multipliers has been performed to validate the proposed method. The results are provided for a sample three-bus power system network and the system integrated with a doubly fed induction generator.

Original languageEnglish
Article number1824
JournalEnergies
Volume12
Issue number10
DOIs
Publication statusPublished - 2019 Jan 1

Fingerprint

Floquet multipliers
Phasor measurement units
Power System
Orbital Stability
Estimator
Asynchronous generators
Power transmission
Oscillation
Time series
Unit
Integrated System
Mathematical models
Time Series Data
Comparative Study
Proof by induction
Periodic Solution
High Resolution
Unstable
Generator
Mathematical Model

Keywords

  • DFIG
  • Floquet multiplier
  • Poincaré map
  • Power systems
  • Time series data

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Energy (miscellaneous)
  • Control and Optimization
  • Electrical and Electronic Engineering

Cite this

Development of floquet multiplier estimator to determine nonlinear oscillatory behavior in power system data measurement. / Choi, Namki; Cho, Hwanhee; Lee, Byong Jun.

In: Energies, Vol. 12, No. 10, 1824, 01.01.2019.

Research output: Contribution to journalArticle

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