Measurement of synchronous machine rotor angle from analysis of zero sequence harmonic components of machine terminal voltage

Mello, F. P. de

doi:10.1109/61.329510

Cited by 61 publications

(22 citation statements)

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“…They are described as follow (De Mello 1994). In the next section the construction an observer of the damper currents i kd and i kq will be given.…”

Section: Power System Modelmentioning

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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“…They are described as follow (De Mello 1994). In the next section the construction an observer of the damper currents i kd and i kq will be given.…”

Section: Power System Modelmentioning

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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“…which shows that the derivative of V 4 is negative semidefinite. Remark 3: In engineering applications, the state vectors ∆δ, ∆ω and ∆P e can be determined using phasor measurement units (PMUs), which have been widely reported [19][20][21]. Thus the nonlinear adaptive backstepping control scheme in (37) can be easily realized in large-scale power systems.…”

Section: Design Of Abcmentioning

confidence: 99%

“…The adaptive backstepping design procedure can now be extended to a nonlinear system (16)- (19) with multiple unknown parameters.…”

Section: Modified Dynamic Model Of Power Systemsmentioning

confidence: 99%

Nonlinear adaptive decentralized stabilization control for multimachine power systems

Lee

Yoon

et al. 2009

Int. J. Control Autom. Syst.

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This paper presents a decentralized adaptive backstepping controller to dampen oscillations and improve the transient stability to parametric uncertainties in multimachine power systems. The proposed design on the i th synchronous generator uses only local information and operates without the need for remote signals from the other generators. The design of the nonlinear controller is based on a modified fourth-order nonlinear model of a synchronous generator, and the automatic voltage regulator model is considered so as to decrease the steady state voltage error. The construction of both the control law and the associated Lyapunov function is systematically designed within the design methodology. A 3-machine power system is used to demonstrate the effectiveness of the proposed controller over two other controllers, namely a conventional damping controller (power system stabilizer) and one designed using the feedback linearization techniques.

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“…The dynamic of the terminal voltage (12) is obtained through the time derivative of (2) using (3) and (4) where the damper currents are replaced by the observer (9). 17 14 3 1 ( ) …”

Section: Excitation Control Lawmentioning

confidence: 99%

Stabilizing Nonlinear Control Using Damper Currents Sliding Mode Observer of Synchronous Generator

Ouassaid

Maâroufi

Cherkaoui

2011

ijeei

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Abstract:In this article, a new observer-based nonlinear controller for excitation control of synchronous generator is presented. First, a nonlinear sliding mode observer for the synchronous machine damper currents is developed. Second, the existence of a control law for the complete seventh order model of a generator, which takes into account the stator dynamics as well as the damper effects, is proved by using the theory of Lyapunov. The stabilizing feedback law for the power system is shown to be Globally Exponentially Stable (GES) in the context of Lyapunov theory. Simulation results, for a single-Machine-Infinite-Bus (SMIB) power system, are given to demonstrate the effectiveness of the proposed combined obsever-controller for the transient stabilization and voltage regulation.

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Measurement of synchronous machine rotor angle from analysis of zero sequence harmonic components of machine terminal voltage

Cited by 61 publications

References 1 publication

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

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

Nonlinear adaptive decentralized stabilization control for multimachine power systems

Stabilizing Nonlinear Control Using Damper Currents Sliding Mode Observer of Synchronous Generator

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