A new scheme of WADC for damping inter-area oscillation based on CART technique and Thevenine impedance

Ranjbar, Soheil; Aghamohammadi, Mohammad Reza; Haghjoo, Farhad

doi:10.1016/j.ijepes.2017.07.010

Cited by 34 publications

(37 citation statements)

References 32 publications

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“…In the case of developing wide area damping controllers (WADCs), there are different techniques which have been concentrated for developing WADC strategies including investigating WADC performances as additional controller, [3][4][5][6][7][8][9] applying renewable suppliers as damping controllers in the case of inter-area oscillations, [10][11][12][13][14] use of HVDC links in long transmission lines for controlling the inter-area oscillations between two oscillating areas [15][16][17] and investigating FACTS-based WADCs installed at long transmission lines to damp inter-area oscillations. 18,19 However, in fact, there are various reliability challenges including communication links which avoid the use of WADC schemes in real interconnected power systems.…”

Section: Literature Reviewmentioning

confidence: 99%

“…In online working mode, this paper uses an online index to evaluate power coherent groups. For this propose, based on evaluating the correlation coefficient between all pairs of generators, the coherent synchronous generators and corresponding oscillating areas are identified as follows 4 :…”

Section: Identifying Inter-area Oscillation and Corresponding Contrmentioning

confidence: 99%

“…Based on power system dynamic model mentioned in (1) and (2) and respected GS, the proposed WADC scheme is modeled and applied in power system. In order to reduce the system order, a second-order classical model is used for synchronous machines with the following formulations 4 :…”

Section: Defining Test System and Controlling Modelmentioning

confidence: 99%

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Adaptive wide area damping controller for damping inter‐area oscillations considering high penetration of wind farms

Alinezhad

Radmehr

Ranjbar

2020

Int Trans Electr Energ Syst

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Summary An online and non‐model‐based wide area damping controller (WADC) is presented in this paper for damping inter‐area oscillations in the presence of high penetration of renewable energies. For this propose, based on wide area measurement system (WAMS) technology and evaluating the system dynamic behavior within real‐time environment, the oscillating generators against each other are identified from which corresponding global inter‐area controlling signals are provided. The proposed WADC is consisting of three different individual parts including (a) Identifying inter‐area oscillations, (b) Evaluating inter‐area signals, and (c) Estimating controlling signals with respect to reach high damping ratio of inter‐area oscillations. In the first part, based on coherency concept and evaluating global signals gathered from WAMS data, the generators coherency factors and expected inter‐area oscillations are identified. In the case of evaluating an inter‐area oscillation in the second part, the proposed WADC scheme is activated from which the initial damping ratio and candidate generators with high penetration on damping procedure of inter‐area oscillation are determined. Finally, in the third part, the proper gain factors are estimated with respect to each inter‐area signal form which the individual controlling signals for damping inter‐area oscillations are provided. In order to evaluate damping performance, the proposed WADC scheme and corresponding different parts are carried out on modified 39‐bus test system considering different operational and topological conditions with the potential of unstable inter‐area oscillations. Simulation studies indicate the effectiveness of proposed WADC scheme with high penetration for damping inter‐area oscillations.

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Section: Literature Reviewmentioning

confidence: 99%

Section: Identifying Inter-area Oscillation and Corresponding Contrmentioning

confidence: 99%

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Adaptive wide area damping controller for damping inter‐area oscillations considering high penetration of wind farms

Alinezhad

Radmehr

Ranjbar

2020

Int Trans Electr Energ Syst

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“…While DGs have various advantages in the microgrid operating conditions, the protection issues of microgrids in IM and the related relay performances in the presence of multiple types of DGs (i.e., inverter-based, induction and synchronous DGs) still remain the significant issues for secure operation of microgrids within different operating conditions (Ranjbar et al 2018). On the other hand, both the DG type and fault type will influence the fault current pattern and relay performance.…”

Section: Paper Motivationmentioning

confidence: 99%

Intelligent Differential Protection Scheme for Controlled Islanding of Microgrids Based on Decision Tree Technique

Sepehrirad

Ebrahimi

Alibeiki

et al. 2020

J Control Autom Electr Syst

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This paper presents an intelligent non-model-based differential relay for protecting microgrid systems in the case of islanding scenarios. For this purpose, by using discrete Fourier transform, different types of electrical signals including voltage and current phasors are processed during fault events by which the most observable signals are estimated to identify system abnormal conditions. In order to identify proper protection signals, an intelligent decision tree (IDT) technique is implemented from which the most effective signals for designing differential protection relay are provided. The proposed IDT-based differential scheme is trained comprehensively in off-line environment using different fault scenarios, both operational and topological. Then, it is implemented in online working mode where, by applying candidate protection signals as input to the proposed intelligent relay, the proper differential protection is derived. The proposed protection relay is an online and non-model-based scheme which can be implemented within a wide range of topologies including mesh and radial topologies in terms of the system operating conditions. The proposed strategy is implemented on a modified IEC case with different fault scenarios. Through considering two grid-connected and islanded system operating modes, the performance of the proposed intelligent differential relay is evaluated. Simulation test results indicate the considerable ability of the proposed technique for proper estimation of decision signals in different fault scenarios within real-time environment.

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“…Many techniques can be found in literature, and Table 1 shows a brief review of the related researches. It is seen that generally the algorithms for recognizing OOS condition can be categorized into 2 groups: detection algorithms [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] and prediction algorithms. [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37] In Table 1, it is concluded that a number of conventional methods including an adaptive OOS relay, based on the classical equal area criterion using power angle (P-δ), are proposed in which the newly developed technology of synchronized phasor measurements plays an important role.…”

Section: Introductionmentioning

confidence: 99%

Intelligent prediction of out-of-step condition on synchronous generators because of transient instability crisis

Zare

Alinejad‐Beromi

Yaghobi

2018

Int Trans Electr Energ Syst

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Summary This paper presents an adaptive scheme for predicting out‐of‐step (OOS) condition of synchronous generator based on the Bayesian technique. The proposed scheme performs as an intelligent OOS method for synchronous generators from which by using training variables, the tripping signals are estimated. For classifying target classes between stable and OOS conditions, a series of measurements are derived under various fault scenarios including topological and operational disturbances. The tripping signals are estimated by using feature selection technique based on the Bayesian technique. In this procedure, the data of input variables and corresponding output target classes are implemented as input‐output pair data for Bayesian training and testing. For this propose, the ability of the OOS protective scheme is examined for a number of unseen samples in working mode. The proposed approach is applied on IEEE 39‐bus test system from which by using trained variables, the tripping signals are estimated online. Furthermore, to evaluate the proposed protective scheme in real‐time environment, a 2‐machine experimental case is used to assess the effectiveness of the proposed scheme. The results show a promising performance of proposed protective scheme for proper estimating of tripping signals.

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A new scheme of WADC for damping inter-area oscillation based on CART technique and Thevenine impedance

Cited by 34 publications

References 32 publications

Adaptive wide area damping controller for damping inter‐area oscillations considering high penetration of wind farms

Adaptive wide area damping controller for damping inter‐area oscillations considering high penetration of wind farms

Intelligent Differential Protection Scheme for Controlled Islanding of Microgrids Based on Decision Tree Technique

Intelligent prediction of out-of-step condition on synchronous generators because of transient instability crisis

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