Improved power system stability using backtracking search algorithm for coordination design of PSS and TCSC damping controller

Naz Niamul Islam, Hannan M A, Azah Mohamed, Hussain Shareef

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Power system oscillation is a serious threat to the stability of multimachine power systems. The coordinated control of power system stabilizers (PSS) and thyristor-controlled series compensation (TCSC) damping controllers is a commonly used technique to provide the required damping over different modes of growing oscillations. However, their coordinated design is a complex multimodal optimization problem that is very hard to solve using traditional tuning techniques. In addition, several limitations of traditionally used techniques prevent the optimum design of coordinated controllers. In this paper, an alternate technique for robust damping over oscillation is presented using backtracking search algorithm (BSA). A 5-area 16-machine benchmark power system is considered to evaluate the design efficiency. The complete design process is conducted in a linear time-invariant (LTI) model of a power system. It includes the design formulation into a multi-objective function from the system eigenvalues. Later on, nonlinear time-domain simulations are used to compare the damping performances for different local and inter-area modes of power system oscillations. The performance of the BSA technique is compared against that of the popular particle swarm optimization (PSO) for coordinated design efficiency. Damping performances using different design techniques are compared in term of settling time and overshoot of oscillations. The results obtained verify that the BSA-based design improves the system stability significantly. The stability of the multimachine power system is improved by up to 74.47% and 79.93% for an inter-area mode and a local mode of oscillation, respectively. Thus, the proposed technique for coordinated design has great potential to improve power system stability and to maintain its secure operation.

Original languageEnglish
Article numbere0146277
JournalPLoS One
Volume11
Issue number1
DOIs
Publication statusPublished - 8 Jan 2016

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controllers
Thyristors
System stability
Damping
oscillation
Controllers
Benchmarking
methodology
system optimization
swarms
Particle swarm optimization (PSO)
Tuning

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

Cite this

Improved power system stability using backtracking search algorithm for coordination design of PSS and TCSC damping controller. / Islam, Naz Niamul; M A, Hannan; Mohamed, Azah; Shareef, Hussain.

In: PLoS One, Vol. 11, No. 1, e0146277, 08.01.2016.

Research output: Contribution to journalArticle

Islam, Naz Niamul ; M A, Hannan ; Mohamed, Azah ; Shareef, Hussain. / Improved power system stability using backtracking search algorithm for coordination design of PSS and TCSC damping controller. In: PLoS One. 2016 ; Vol. 11, No. 1.
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