Adverse increase in generator terminal voltage and reactive power transients caused by power system stabilizers

Ferraz, J.C.R.; Soares, João Marcos Castro; Zeni, N.; Taranto, G.N.

doi:10.1109/pesw.2002.985104

Cited by 14 publications

(12 citation statements)

References 5 publications

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“…No adverse interactions have been observed in all performed field tests, however, is necessary an investigation of the zero location when the pole shifting technique is used, due to the influence of the zero position in the interactions between large active power deviations and the control signal of the damping controller [14]. This task and others, such as, studies of an adaptive controller design, considering a variable time-delay in the loop, will be object of future investigations.…”

Section: Discussionmentioning

confidence: 96%

Development and field tests of a damping controller to mitigate electromechanical oscillations on large diesel generating units

Nogueira

Barreiros

Barra

et al. 2011

Electric Power Systems Research

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Section: Discussionmentioning

confidence: 96%

Development and field tests of a damping controller to mitigate electromechanical oscillations on large diesel generating units

Nogueira

Barreiros

Barra

et al. 2011

Electric Power Systems Research

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“…But, unfortunately, at the same time the designed PSS minimizes the swells in the generator terminal and field voltages, it also leads their peaks to high values during the transient (whose behavior was already pointed out in [8]). As a consequence, the voltage quality across the grid can be deteriorated, since the amplitude of the voltages throughout the network buses may also exhibit large variations from its equilibrium conditions.…”

Section: Introductionmentioning

confidence: 84%

“…The final, closed-loop models of the controlled power system can be obtained from the combination of the openloop system models given by (6)- (8) with the model of the PSS given by (12)- (13), which can be written in the form…”

Section: Formulation Of the Tuning Procedures In Terms Of Bmismentioning

confidence: 99%

A tuning method of PSSs for distributed synchronous generators performing a trade-off between voltage performance and oscillation damping enhancement

Kuiava

Ramos

Rodrigues

et al. 2010

2010 IREP Symposium Bulk Power System Dynamics and Control - VIII (IREP)

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It is well known that power system stabilizers (PSSs) may cause adverse impacts to the transient performance of generator terminal and field voltages when they are not properly designed. This fact, in special for distribution networks with synchronous generators, is relevant from the voltage quality point of view since the operation of sensitive equipments connected to the network may be deteriorated. Based on these facts, this paper proposes an iterative method to tune PSSs for distributed synchronous generators (DSGs) that performs an effective trade-off between transient voltage performance and oscillation damping enhancement. Our proposed tuning procedure uses an optimization algorithm that works over a formulation of the classical tuning problem in terms of bilinear matrix inequalities (BMIs). Using this formulation, it is possible to apply linear matrix inequality (LMI) solvers to find a solution to the tuning problem via an iterative process, with the advantage that these solvers are widely available and have well-know convergence properties. The system that was analyzed has 1 feeder, 7 buses and a cogeneration plant injecting 10 MW to the network.

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“…However, at the same time, this type of controller may cause adverse impacts on the transient performance in the field and terminal voltages (as already pointed out in [5] for generation/transmission systems). The major problem here is that such adverse performance can then extend to the voltages of the others network buses, and consequently, the quality of the voltage waveform supplied to the loads across the grid can be deteriorated [2].…”

Section: Introductionmentioning

confidence: 94%

Design of PSSs for distributed synchronous generators using a system representation based on norm-bounded linear differential inclusions

Kuiava

Ramos

Bretas

2010

2010 IEEE International Conference on Control Applications

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This paper proposes a systematic method based on linear matrix inequalities for the design of power system stabilizers for synchronous generators connected to distribution grids. The system to be controlled is originally described by a nonlinear dynamical model in state-space form. However, for synthesis purposes we represent it as a norm-bounded linear differential inclusion model. Using an approach based on the mean-value theorem, this linear representation considers the nonlinear terms in the Taylor series expansion of the nonlinear equations as uncertainties in the model. Constraints are included to the control problem formulation in order to guarantee a satisfactory performance of the controlled system. The main objectives, from the application viewpoint, are the enhancement in the damping of electromechanical oscillations, as well as the minimization of the peaks reached by the terminal and field voltages during the transients of interest. The proposed algorithm is a straightforward design procedure and can be easily handled by using LMI solvers. A cogeneration plant of 10 MW added to a distribution network constituted by a feeder and six buses is adopted as test system, and the results show that the two designed objectives are quite satisfactorily achieved.

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Adverse increase in generator terminal voltage and reactive power transients caused by power system stabilizers

Cited by 14 publications

References 5 publications

Development and field tests of a damping controller to mitigate electromechanical oscillations on large diesel generating units

Development and field tests of a damping controller to mitigate electromechanical oscillations on large diesel generating units

A tuning method of PSSs for distributed synchronous generators performing a trade-off between voltage performance and oscillation damping enhancement

Design of PSSs for distributed synchronous generators using a system representation based on norm-bounded linear differential inclusions

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