A parallel OPF approach for large-scale power systems

Huang, Yanguang; Kashiwagi, Takeshi; Morozumi, Satoshi

doi:10.1049/cp:20020028

Cited by 8 publications

(3 citation statements)

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“…However, [15] and [17] use network reduction methods to reduce the system size. In [18], a network with over 8000 buses is solved, however, there is no information on grid type or load. All of the above works have in common at least one of the following drawbacks:…”

Section: Introductionmentioning

confidence: 99%

Distributed AC-DC Optimal Power Flow in the European Transmission Grid with ADMM

Hübner¹,

Rink²,

Suriyah³

2019

Preprint

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Distributed or multi-area optimal power flow appears to be promising in order to cope with computational burdens in large-scale grids and without the regional system operators losing control over their respective areas. However, algorithms are usually tested either in small test cases or single countries. We present a realistic case study in the interconnected European transmission grid with over 5000 buses and 315 GW load. The grid is partitioned into 24 areas which correspond to the respective single countries. We use a full alternating current model and integrate multi-terminal direct current systems. The decomposed problem is solved via a modified Alternating Direction of Multipliers Method (ADMM), in which the single countries only exchange border node information with each neighbor. In terms of generation costs, the solution of the distributed optimal power flow problem deviates only 0.02% from a centrally computed one. Consensus between all regions is reached before 200 iterations, which is remarkable in such a large system.Index Terms-Distributed optimal power flow, multi-area optimal power flow, AC-DC OPF, ADMM, large-scale optimization, ENTSOE grid, hybrid AC-DC grid.

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Section: Introductionmentioning

confidence: 99%

Distributed AC-DC Optimal Power Flow in the European Transmission Grid with ADMM

Hübner¹,

Rink²,

Suriyah³

2019

Preprint

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“…However, none of them deals with real time application of SCOPF as the present paper, but they all have in common the use of distributed processing. In [5], the authors use the Unlimited Point Algorithm for the solution of the OPF. The parallelization is made at the matrix solution level.…”

Section: Introductionmentioning

confidence: 99%

Power System Real Time Operation based on Security Constrained Optimal Power Flow and Distributed Processing

Borges

Alves

2007

2007 IEEE Lausanne Power Tech

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This paper presents the implementation of the Nonlinear Security Constrained Optimal Power Flow -SCOPF problem solution based on distributed processing with the objective of real time application. The optimization problem is solved by the Interior Point Method and the security constraints are considered by the use of Benders Decomposition techniques. The parallel algorithm was implemented using the MPIMessage Passing Interface system and was also integrated to an actual Energy Management System -EMS using the resources available on its distributed platform. Results obtained on a 16 dual-processed nodes Cluster of computers are presented for an actual Brazilian equivalent network composed of 3073 busbars, 4547 branches and 963 active and reactive controls, for a list of 700 contingencies. The results obtained demonstrate the high efficiency and applicability of the developed distributed tool at Control Centers for real time security control. area of computer methods for power system analysis, optimization, reliability and high performance computing. Juliana M. T. Alves obtained the B.Sc. (2001) and the M.Sc. (2005) from the Federal University of Rio de Janeiro (COPPE/UFRJ), Brazil. Since 2002 she has been a researcher at CEPEL, the Brazilian Electrical Power Research Center. Her areas of interest are network analysis applied to real-time operation and operators training.

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“…On the other hand, the performance of parallel processing may be good only when the architecture of parallel processing dovetails with the Characteristic of computation problem. So the application of parallel processing is not universal in power system [2][3][4][5] .…”

Section: Introductionmentioning

confidence: 99%

The Grid Computing Model—A New Computing Model For The Analysis and Computation Of Large-Scale Power System

Hualiang

Mao

Zhang

et al.

2005 IEEE/PES Transmission &Amp;amp; Distribution Conference &Amp;amp; Exposition: Asia and Pacific

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The present sequential and parallel computing can not satisfy the requirements of Large-Scale Power System computation. This paper introduces a new solution called the Grid ComputingModel, which may greatly enhance total speed and efficiency by utilizing existing resources without incurring any additional hardware costs. In this paper, the proposed Grid computing model is applied to optimal power flow(OPF). Multiple Partition is implemented on OPF, and relations among tasks are tuned effectively. Two different OPF computation schemes are designed and run on the same "Lab Grid".To evaluate the performance of Grid platform, the total speedup(TS) and the total efficiency(TE) are put forward in this paper. Different experiments are done on the different size "Lab Grid." The resulting data has shown that the Grid model is capable of acquiring higher TS and TE. The Grid model will become one of most effective means to solve electric power computation problems.

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A parallel OPF approach for large-scale power systems

Cited by 8 publications

References 0 publications

Distributed AC-DC Optimal Power Flow in the European Transmission Grid with ADMM

Distributed AC-DC Optimal Power Flow in the European Transmission Grid with ADMM

Power System Real Time Operation based on Security Constrained Optimal Power Flow and Distributed Processing

The Grid Computing Model—A New Computing Model For The Analysis and Computation Of Large-Scale Power System

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A parallel OPF approach for large-scale power systems

Cited by 8 publications

References 0 publications

Distributed AC-DC Optimal Power Flow in the European Transmission Grid with ADMM

Distributed AC-DC Optimal Power Flow in the European Transmission Grid with ADMM

Power System Real Time Operation based on Security Constrained Optimal Power Flow and Distributed Processing

The Grid Computing Model&#8212;A New Computing Model For The Analysis and Computation Of Large-Scale Power System

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The Grid Computing Model—A New Computing Model For The Analysis and Computation Of Large-Scale Power System