The Nature of Power System Oscillations

Rogers, G.J.

doi:10.1007/978-1-4615-4561-3_2

Cited by 83 publications

(139 citation statements)

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“…The aim of GAs based optimization procedure is to achieve 5% [11] damping for all modes over all operating conditions under consideration, by exploring the search space of admissible controller parameters.…”

Section: Pss Design and Locationmentioning

confidence: 99%

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Optimal locations and tuning of robust power system stabilizer using genetic algorithms

Sebaa

Boudour

2009

Electric Power Systems Research

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Section: Pss Design and Locationmentioning

confidence: 99%

“…The most known method that defines the candidates' machines to be equipped by PSS is the one, which uses the speed participation factors [11]. When PSSs are installed, the sensitivity of their modes to the other generators is altered.…”

Section: Introductionmentioning

confidence: 99%

Optimal locations and tuning of robust power system stabilizer using genetic algorithms

Sebaa

Boudour

2009

Electric Power Systems Research

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“…Power System Stabilizer (PSS) is an auxiliary excitation control technique in order to eliminate the low frequency oscillation happening in the power system [2][3][4]. Its design theory was well developed during 1960s [3][4][5]. Based on this theory, the low frequency oscillation happens because of the weak or even negative damping of the power system in operation.…”

Section: Introductionmentioning

confidence: 98%

“…To do so, the electro-magnetic torque is decomposed into the synchronous torque component and the damping torque component [4]; then the feedback from either the rotor speed or the electro-magnetic torque or both is used to increase the damping torque component. The key of this step lies in compensating the lag angle between the rotor speed and the electro-magnetic torque [1][2][3][4][5]. By doing so an extra damping torque is appended on the original one.…”

Section: Introductionmentioning

confidence: 99%

“…Consequently the transient stability problem becomes very serious. To enhance the transient stability of the large units, the fast-response high-gain exciters began being widely applied in the power system, which causes another serious problem, i.e., the low frequency oscillation [1][2][3][4][5][6][7]. Power System Stabilizer (PSS) is an auxiliary excitation control technique in order to eliminate the low frequency oscillation happening in the power system [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

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Renewed investigation on Power System Stabilizer design

Jin

Wang

Zhang

2011

Sci. China Technol. Sci.

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Power System Stabilizer (PSS) was proposed during 1960s to solve the low frequency oscillation problem raised by the wide application of the high-gain fast-response exciters. The fundamentals of PSS design lie in the angle compensation to increase the damping torque, which, since then, has become an important principle in designing the various power system dampers, such as SVC, TCSC, UPFC. Although many papers have been dedicated to the application of this principle, it is interesting to note that in the real industry applications PSS parameters have to be carefully tuned on site in spite of its mature design theory. So does the classical PSS design theory really meet the PSS design demand? By combining the frequency domain and the time domain analysis, this paper reinvestigates the basic idea behind the classical PSS design theory. The paper clarifies the concepts of the synchronous torque as well as the damping torque and proves that the classical PSS design principles based on these concepts are not theoretically sound. Then the paper discusses the Linear Optimal Controller Design method and analyzes its relations with the conventional PID design. By doing so the paper reveals the real mechanism of the PSS and proposes to use more systematic and advanced control tools to enhance the controller performance.power system stabilizer, low frequency oscillation, power system dynamics Citation:

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Study of interactions between close HVDC links inserted in an AC grid: A mixed nonlinear and modal analysis approach

Munteanu

Marinescu

Xavier

2019

Int Trans Electr Energ Syst

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Summary This paper focuses on interaction between two closed‐connected high‐voltage direct current (HVDC) lines. This interaction is studied by employing high‐fidelity nonlinear modelling in MATLAB/Simulink software environment. In order to describe the mechanism behind the HVDCs interaction, both nonlinear time‐domain simulations and modal analysis of the coupled HVDC links have been performed. System small‐signal stability has been assessed, and the path of interactions has been identified by computing the participations of various states in the oscillatory modes; this sets the preliminaries for a global, grid‐oriented HVDCs control design approach. After the detailed analysis of newly identified coupling oscillations, the minimal modelling requirements to put them into evidence have also been studied; this significantly facilitates the analysis in a realistic large‐scale grid context.

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The Nature of Power System Oscillations

Cited by 83 publications

References 1 publication

Optimal locations and tuning of robust power system stabilizer using genetic algorithms

Optimal locations and tuning of robust power system stabilizer using genetic algorithms

Renewed investigation on Power System Stabilizer design

Study of interactions between close HVDC links inserted in an AC grid: A mixed nonlinear and modal analysis approach

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