A distributed simulation based approach for detailed and decentralized power system transient stability analysis

Esmaeili, Sajjad; Kouhsari, Shahram Montaser

doi:10.1016/j.epsr.2006.06.008

Cited by 25 publications

(20 citation statements)

References 14 publications

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“…w is the MHO relay characteristic angle and u is the measured impedance angle. In Equation (15), the positive and negative values denote for over reach and under reach of relay, respectively. The RI and TI are calculated at three points close to the relay's three zone boundaries.…”

Section: Adaptive Distance Relaying Based On Gnsmentioning

confidence: 99%

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An adaptive distance relaying strategy based on global network simulation

Sadr

Kouhsari

2009

Int Trans Elec Energy Syst

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SUMMARYIn this paper, a new method based on Global Network Simulation (GNS) approach for adaptive distance relaying is presented. The GNS approach uses Diakoptics and Large Change Sensitivity (LCS) concepts to perform the interconnected power systems analysis globally. The proposed method employs the decentralized nature of GNS short circuit analysis for calculation of relay settings of each sub-network independently in the federal environment. Updating the relay settings of each utility in every power system conditions adaptively as well as meeting individual utilities' adopted coordination philosophies are great achievements of presented approach. No computational errors encountered in the proposed method since the applied concepts eliminates the usual needs for equivalent network or reduced models. The proposed approach is well fitted for nowadays restructured power industry requirements. The performance of the presented approach is examined using the IEEE 14 bus as a small tangible test system and a real version of huge interconnected network for practical purposes. The results compared with conventional approach.

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Section: Adaptive Distance Relaying Based On Gnsmentioning

confidence: 99%

“…The reader may refer to References [12][13][14]6] and [15] respectively, for Load Flow, Short Circuit and Transient Stability for their methodology, detailed problem formulation and deep test results. Here, a very brief review on the short circuit analysis in the GNS framework is presented.…”

Section: Global Network Simulation (Gns)mentioning

confidence: 99%

An adaptive distance relaying strategy based on global network simulation

Sadr

Kouhsari

2009

Int Trans Elec Energy Syst

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“…The tear-off point is the terminal of the faulty machine. Now we can apply LCS and, based on the LCS definitions [24][25][26], we need to obtain a nominal independent solution of the sub-networks. The terminal bus of the faulty machine is torn apart into two buses.…”

Section: Lcs and Diakoptic-based Solution For Interfacing Faulted Macmentioning

confidence: 99%

“…To achieve this goal the paper combines the discretized VBR model and distributed simulation concepts (Diakoptic [19][20][21][22]) and LCS [23][24][25][26]. In addition to an encouraging match between the ATP simulation, proposed approach and measured data, the simulation speed is considerably higher.…”

Section: Introductionmentioning

confidence: 99%

A Faulty Synchronous Machine Model for Efficient Interface with Power System

Koochaki¹

2015

Journal of Electrical Engineering and Technology

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-This paper presents a new approach for simulating the internal faults of synchronous machines using distributed computing and Large Change Sensitivity (LCS) analysis. LCS analysis caters for a parallel solution of 3-phase model of a faulted machine within the symmetrical componentbased model of interconnected network. The proposed method considers dynamic behavior of the faulty machine and connected system and tries to accurately solve the synchronous machine's internal fault conditions in the system. The proposed method is implemented in stand-alone FORTRAN-based phasor software and the results have been compared with available recordings from real networks and precisely simulated faults by use of the ATP/EMTP as a time domain software package. An encouraging correlation between the simulation results using proposed method, ATP simulation and measurements was observed and reported. The simplified approach also enables engineers to quickly investigate their particular cases with a reasonable precision.

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“…The importance on choosing different interface variables is also discussed in [19]. An application of the diakoptics for solving transient stability simulations in a distributed fashion is reported in [20].…”

Section: Introductionmentioning

confidence: 98%