Nonlinear modal analysis of interaction between torsional modes and SVC controllers

Davarani, Roohalamin Zeinali; Ghazi, Reza; Pariz, Naser

doi:10.1016/j.epsr.2012.04.017

Cited by 13 publications

(2 citation statements)

References 21 publications

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“…Therefore, to study the dynamic behaviour of non-linear systems, especially stressed power systems, the non-linear analysis approaches should be used. Modal series (MS) method is one of the non-linear analysis techniques that have been used to study the dynamic phenomena of power systems [10][11][12][13][14][15]. In these papers, it is shown that in a power system under stress condition, the non-linear effects are increased.…”

Section: Introductionmentioning

confidence: 99%

Non‐linear analysis of DFIG based wind farm in stressed power systems

Davarani

Ghazi

Pariz

2014

IET Renewable Power Generation

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This study deals with non-linear interaction problems of DFIG (doubly fed induction generator) based wind farm in a stressed power system. The study is performed on an IEEE modified test system using the non-linear analysis based on the modal series (MS) method. As the installed capacity of renewable energy, especially the wind-energy increases, the wind farm connection to the grid should be studied from different viewpoints. The dynamic performance of this composite power system is an important issue and should be investigated carefully especially in stressed conditions and different operating points of system controllers. The non-linear interactions will complicate the dynamic behaviour of power systems. If such interaction exists between wind farm and other system controllers and is quantitatively significant, the stability of wind plant is jeopardised. To verify the analytical results of MS method, the necessary comparisons have been made with the results of the non-linear simulation and approximate linear methods.

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Section: Introductionmentioning

confidence: 99%

Non‐linear analysis of DFIG based wind farm in stressed power systems

Davarani

Ghazi

Pariz

2014

IET Renewable Power Generation

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“…Each mode has a specific natural frequency, damping ratio and mode shapes [8]. When we study the natural frequencies and mode shapes of the reaction bracket, its damping can be ignored.…”

Section: A Modal Analysis Theorymentioning

confidence: 99%

Dynamic Analysis of Test Frame of Railway Subgrade Dynamic Response Test System

et al. 2013

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Abstract-In this paper, we take the railway subgrade dynamic response test system as the study object, the laboratory test reaction frame's model factors were analyzed through the finite element analysis software MSC.Patran/Nastran. The former six-order original frequencies and vibration modes of the frame were caculated and evaluated in detail. Then we studied its transient response under two working conditions: when it's fully loaded and suddenly unloaded, and the deformation displacement curves of the key points of the frame were obtained. These results provide a basis for the detailed study to the mechanical behavior of the frame and setting the proper working frequencies of the hydraulic servo excitation cylinder to avoid the resonance.

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