Design of suboptimal H∞ excitation controllers

Ahmed, Shakeel; Chen, L.; Petroianu, A.

doi:10.1109/pica.1995.515184

Cited by 11 publications

(15 citation statements)

References 11 publications

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“…Figure 8 show the proposed observer converge in spite of perturbations. (Ahmed at al., 1996)). With the ISMSS /SMVR, the settling time is lesser and the overshot is shorter than the shown by the suboptimal robust controller presented in (Ahmed at al., 1996).…”

Section: Simulations Resultsmentioning

confidence: 99%

Integral Sliding Modes with Block Control of Multimachine Electric Power Systems

Huerta¹,

Loukianov²,

Cañedo³

2008

Systems Structure and Control

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Section: Simulations Resultsmentioning

confidence: 99%

Integral Sliding Modes with Block Control of Multimachine Electric Power Systems

Huerta¹,

Loukianov²,

Cañedo³

2008

Systems Structure and Control

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“…To cope with parametric uncertainties in power systems, many robust voltage regulators have been proposed using the theory of linear robust control such as H ∞ (Ahmed et al 1996) and the L ∞ stability theory (Guo et al 2001;Jiawei et al 2014). In (Ohtsuk 1992), several types of uncertainties and changes in variables are taken into account in the design of H ∞ controller.…”

Section: Robust Controlmentioning

confidence: 99%

Transient Stability Enhancement of Power Systems Using Observer-Based Sliding Mode Control

Ouassaid

Maâroufi

Cherkaoui

2014

Advances and Applications in Sliding Mode Control Systems

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The high complexity and nonlinearity of power systems, together with their almost continuously time-varying nature, have presented a big challenge for control engineers, for decades. The disadvantages of the linear controllers/models, such as being dependent on the operating condition, sensibility to the disturbance such as parametric variations or faults can be overcome by using appropriate nonlinear control techniques. Sliding-mode control technique has been extensively used when a robust control scheme is required. This chapter presents the transient stabilization with voltage regulation analysis of a synchronous power generator driven by steam turbine and connected to an infinite bus. The aim is to obtain high performance for the terminal voltage and the rotor speed simultaneously under a large sudden fault and a wide range of operating conditions. The methodology adopted is based on sliding mode control technique. First, a nonlinear sliding mode observer for the synchronous machine damper currents is proposed. Next, the control laws of the complete ninth order model of a power system, which takes into account the stator dynamics as well as the damper effects, are developed. They are shown to be asymptotically stable in the context of Lyapunov theory. Finally, the effectiveness of the proposed combined observer-controller for the transient stabilization and voltage regulation is demonstrated. Nomenculture

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“…Few years ago, some approaches, for example, H ∝ control [10,11], have appeared to enhance the tuning of classical controllers [3][4][5][6][7][8][9]. However, these techniques were developed again using linear models.…”

Section: Introductionmentioning

confidence: 99%