Stability region and radius in electric power systems under sustained random perturbations

Verdejo, Humberto; Kliemann, Wolfgang; Vargas, Luis; Becker, Cristhian

doi:10.1016/j.ijepes.2015.06.012

Cited by 7 publications

(4 citation statements)

References 23 publications

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“…In the daily operation of PSHP, the power load is subjected to a variety of random perturbations sustained in time, due to the dynamic behavior of consumption, temperature changes in the wires, errors in the measuring instruments, changes in the netwrok's topolopy, etc. Therefore, the randomness is present at all times, and it is necessary to descript it as faithfully as possible to analyze the stochastic behavior of real PSHP [33,34]. Considering the randomness of the power load, a set of Gaussian white noise (average=0, variance=0.001) generated by Matlab software as shown in Fig.…”

Section: Numerical Experimentsmentioning

confidence: 99%

Dynamic analysis of a pumped-storage hydropower plant with random power load

Zhang

Chen

et al. 2018

Mechanical Systems and Signal Processing

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This paper analyzes the dynamic response of a pumped-storage hydropower plant in generating mode. Considering the elastic water column effects in the penstock, a linearized reduced order dynamic model of the pumped-storage hydropower plant is used in this paper. As the power load is always random, a set of random generator electric power output is introduced to research the dynamic behaviors of the pumped-storage hydropower plant. Then, the influences of the PI gains on the dynamic characteristics of the pumped-storage hydropower plant with the random power load are analyzed. In addition, the effects of initial power load and PI parameters on the stability of the pumped-storage hydropower plant are studied in depth. All of the above results will provide theoretical guidance for the study and 2 analysis of the pumped-storage hydropower plant.

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Section: Numerical Experimentsmentioning

confidence: 99%

Dynamic analysis of a pumped-storage hydropower plant with random power load

Zhang

Chen

et al. 2018

Mechanical Systems and Signal Processing

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“…Robust control designs, such as H∞ and singular value analysis, have also been investigated [75]. To avoid zero-pole elimination in relation to the H∞ approach, the singular value analysis presented in [76] is used to select the parameters of the UPFC controller to have robust stability against model disturbances. The stability of the system has a close relationship with the performance of the controllers used in the system for the dynamic stabilization of the system.…”

Section: Introductionmentioning

confidence: 99%

A unified power flow controller-based robust damping controller considering time delay in electrical power systems

Zadehbagheri

Ildarabadi

Sutikno

2023

IJEECS

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Nowadays, different power systems are connected to each other due to technical and economic reasons and form a complex developed network. Such networks measure and send system data to decision-making centers for control and protection. This information transmission is accompanied by a delay and causes the performance of the system’s damping controllers to be affected. To improve power system dynamic stability, the supplementary controller in flexible alternating current transmission system (FACTS) devices is designed to account for information transmission delays. In these methods, to increase the controllability and observability of the inter-area mode, the remote signals extracted from the wide area measurement system (WAMS) are used as the input of the modulator. WAMS systems’ time delay reduces power system stability and even causes instability, so it’s crucial to find the maximum delay margin that ensures stability. Therefore, it is necessary to carefully study the role of FACTS tools in stabilizing the power system and damping interregional fluctuations, considering the delay. This research shows that supplementary controller design can dampen frequency and load angle fluctuations in multi-zone power systems despite information transmission delays. The method works in power system analysis toolbox (PSAT) simulation and MATLAB programming.

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“…14,15 The analysis of the stochastic disturbance stability of different power systems are proposed. 4,[16][17][18] This paper firstly describes the current research status of stochastic power system stability, and analyzes the stability of stochastic linear power system. Based on this, the mean stable method is analyzed.…”

Section: Introductionmentioning

confidence: 99%

“…14,15 The analysis of the stochastic disturbance stability of different power systems are proposed. 4,16–18…”

Section: Introductionmentioning

confidence: 99%

Stable bounded value analysis of disturbance in stochastic linear power systems

Tong

Gao

2020

Measurement and Control

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Stochastic disturbances play a profound problem in the power system, which have an important impact on the stability of the power system. The paper proposes the stability analysis of stochastic disturbance bounded value of linear power system, and presents that the stability of power system has bounded value under stochastic disturbance and additional disturbance, and gives the analysis process in combination with stochastic differentiation. The equation theory proposes a numerical solution based on mean stability to calculate the boundedness of infinite systems under the influence of stochastic disturbance and additional disturbance. The results show that the system has bounded value stability under the disturbance.

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Stability region and radius in electric power systems under sustained random perturbations

Cited by 7 publications

References 23 publications

Dynamic analysis of a pumped-storage hydropower plant with random power load

Dynamic analysis of a pumped-storage hydropower plant with random power load

A unified power flow controller-based robust damping controller considering time delay in electrical power systems

Stable bounded value analysis of disturbance in stochastic linear power systems

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