Modified direct feedback linearization Excitation Controller for transient stability and voltage regulation of SMIB power system

Keskes, Salma; Bouchiba, Nouha; Sallem, Souhir; Chrifi‐Alaoui, Larbi; Kammoun, Mba

doi:10.1109/icosc.2018.8587838

Cited by 5 publications

(3 citation statements)

References 8 publications

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“…VR problem related to normal form AVR are discussed in [11, 13], wherein the post‐fault rotor angle is investigated, to eliminate the static error of the terminal generator voltage. As seen in Fig.…”

Section: Simulation Results and Observationsmentioning

confidence: 99%

“…Partial and exact FBL transform the non-linear power system model into a reduced-order linear and non-linear part and fully linear part, respectively. Thereafter, linear state feedback stabilising controllers using standard linear quadratic regulator (LQR) control technique are used in [1,[9][10][11][12][13][14], to enhance the small-signal stability of the underlying linear subsystem.…”

Section: Introductionmentioning

confidence: 99%

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Ideal AVR and PSS: a theoretical study

Kumar

2020

IET Generation Trans & Dist

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In this study, a normal form based excitation controller for oscillatory dynamics in power systems is investigated. Afterwards, instead of using a conventional linear control technique for the secondary controller, a novel non‐linear objective for the rotor mode is considered to emulate ideal power system stabiliser (PSS) characteristics. With the aid of eigenvalue analysis, it is shown that the proposed method exhibit ideal PSS characteristics. Moreover, it is demonstrated the proposed technique is robust when compared with the conventional controllers. Time‐domain simulation is performed on the third‐, fourth‐, and sixth‐order model (i.e. IEEE model 1.0, 1.1, and 2.2) of the synchronous machines. Simulation results are shown on a single machine infinite bus power system model.

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Section: Simulation Results and Observationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ideal AVR and PSS: a theoretical study

Kumar

2020

IET Generation Trans & Dist

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“…They display a highly nonlinear behavior, which requires a cautious handling for more robust control to take place. To overcome such limitations, other researchers have proposed the direct feedback linearization (DFL) technique, as a control technique enabling one to linearize a particular system's nonlinear dynamics by using feedback [10][11][12][13][14]. However, this approach has frequently been discovered to result in the cancellation of the useful nonlinearities, which undermines the performance of the system.…”

Section: Related Workmentioning

confidence: 99%

A Backstepping Control Strategy for Power System Stability Enhancement

et al. 2023

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Secure power system operation relies extensively on the analysis of transient stability and control. The dynamics involved in power system control are often complex and nonlinear. Most of the currently existing works approach these frequent problems with nonlinear control techniques, leading to a requirement for specific controller parameter adjustments. In these veins, this paper proposes a new method for stabilizing electric power systems, using nonlinear backstepping control by optimizing the controller’s parameters. The Jaya algorithm and Genetic algorithm are utilized as a powerful meta-heuristic optimization technique to search parameters of an optimal controller. Improvement in system damping, transient stability, and voltage regulation has been achieved by minimizing the integral time absolute error (ITAE) as the objective function. Numerical simulations on an SMIB power system under different fault conditions showed that the proposed method outperforms classical power system stabilizer (PSS) methods, reducing overshoots and settling times and eliminating steady-state errors. These findings highlight the effectiveness of the proposed approach and its potential contribution to the development of advanced nonlinear control techniques for electric power systems. The suggested optimization methods demonstrate superior performance, compared to classical methods, and achieve a reduction of 27.5% in overshoot and 87% in transient time in addition to complete elimination of static error.

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Adaptive Fixed-Time Control Strategy of Generator Excitation and Thyristor-Controlled Series Capacitor in Multi-Machine Energy Systems

Fathollahi,

Andresen

2024

IEEE Access

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Modified direct feedback linearization Excitation Controller for transient stability and voltage regulation of SMIB power system

Cited by 5 publications

References 8 publications

Ideal AVR and PSS: a theoretical study

Ideal AVR and PSS: a theoretical study

A Backstepping Control Strategy for Power System Stability Enhancement

Adaptive Fixed-Time Control Strategy of Generator Excitation and Thyristor-Controlled Series Capacitor in Multi-Machine Energy Systems

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