Wide-Area Damping Control using Reduced Copy under Intermittent Observation: A Novel Performance Measure

Amirthagunaraj Yogarathinam, Nilanjan Ray Chaudhuri

Research output: Contribution to journalArticle

Abstract

Insight into the application of observer-driven reduced copy (ORC) to deal with data packet dropout during wide-Area oscillation damping control through wind farms (WFs) is developed. The ORC technique tries to emulate the behavior of the power system by using the information of the nominal dynamics under intermittent observation. This brief presents a direct performance measure for ORC. To that end, a standard lemma relating the bound on the norm of the integral over the product of two functions is presented, which is proven using Hölder's inequality. Based on the lemma, an expression is derived for the bound on the norm within an inter-sample interval for difference between the power system states in presence of data dropout and that under ideal communication. Such a bound, when evaluated in a relative sense, would be useful for system operators to perform online contingency screening and ranking from damping performance standpoint without running prohibitively expensive time-domain simulations. In addition, such a bound is also derived for the conventional feedback control (CFC). The data dropout is modeled using the Gilbert-Elliott model. The analytical results are validated using time-domain simulation of a 16-machine, 5-Area New England-New York system with two doubly fed induction generator-based WFs.

Original languageEnglish (US)
Article number8100642
Pages (from-to)434-442
Number of pages9
JournalIEEE Transactions on Control Systems Technology
Volume27
Issue number1
DOIs
StatePublished - Jan 1 2019

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Farms
Damping
Asynchronous generators
Feedback control
Screening
Communication

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Cite this

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abstract = "Insight into the application of observer-driven reduced copy (ORC) to deal with data packet dropout during wide-Area oscillation damping control through wind farms (WFs) is developed. The ORC technique tries to emulate the behavior of the power system by using the information of the nominal dynamics under intermittent observation. This brief presents a direct performance measure for ORC. To that end, a standard lemma relating the bound on the norm of the integral over the product of two functions is presented, which is proven using H{\"o}lder's inequality. Based on the lemma, an expression is derived for the bound on the norm within an inter-sample interval for difference between the power system states in presence of data dropout and that under ideal communication. Such a bound, when evaluated in a relative sense, would be useful for system operators to perform online contingency screening and ranking from damping performance standpoint without running prohibitively expensive time-domain simulations. In addition, such a bound is also derived for the conventional feedback control (CFC). The data dropout is modeled using the Gilbert-Elliott model. The analytical results are validated using time-domain simulation of a 16-machine, 5-Area New England-New York system with two doubly fed induction generator-based WFs.",
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Wide-Area Damping Control using Reduced Copy under Intermittent Observation : A Novel Performance Measure. / Yogarathinam, Amirthagunaraj; Chaudhuri, Nilanjan Ray.

In: IEEE Transactions on Control Systems Technology, Vol. 27, No. 1, 8100642, 01.01.2019, p. 434-442.

Research output: Contribution to journalArticle

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