Transmission network expansion planning considering repowering and reconfiguration

Tejada, Diego A.; López-Lezama, Jesús M.; Rider, Marcos J.; Vinasco, Guillermo

doi:10.1016/j.ijepes.2015.01.008

Cited by 23 publications

(17 citation statements)

References 26 publications

(35 reference statements)

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“…�e method is tested with two different systems, and the authors conclude that the savings obtained by the proposed approach were due to the greater search space of the problem. Reference [25] applies the Dantzig-Wolfe decomposition to the stochastic TNEP problem with line switching. In the problem, it is assumed that the future demand and maximum generation are uncertain.…”

Section: Introductionmentioning

confidence: 99%

Transmission Network Expansion Planning Considering Line Switching

et al. 2020

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Commonly, in the transmission network expansion planning (TNEP) problem, the objective is to define the minimal-cost investment in new transmission devices, e.g., the transmission lines and transformers, for the system to operate adequately in a planning horizon. In addition to the traditional approach of considering the installation of new components, the presented model considers the enhancement of the system operation performance through the modification of its topology in each operation scenario. �is modification is made by switching off the lines that degrade the system's performance. By using an illustrative example, we discuss why congestion is eliminated by switching off specific lines from the system, thereby improving the performance of the existing network and constructed candidate lines and leading to lower investment costs. �e proposed method also considers a strategy to reduce the number of lines switched off in order to improve the reliability of the system and avoid alternative optimal solutions with unnecessary lines switched. �e tests are carried out using the 46-bus southern Brazilian system and the IEEE 24-bus system, which are usually used as benchmarks for the TNEP problem. �e results are compared with the solu

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Section: Introductionmentioning

confidence: 99%

Transmission Network Expansion Planning Considering Line Switching

et al. 2020

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“…Several models and solution techniques have been proposed in the specialized literature to approach the TNEP problem [3]. Heuristic [4], metaheuristic [5]- [6] and exact methods [7]- [8] have been explored to tackle the TNEP problem in its different versions. Heuristic techniques are easy to implement but rather often get trapped in local optimal solutions.…”

Section: Introductionmentioning

confidence: 99%

Transmission network expansion planning considering weighted transmission loading relief nodal indexes

Saldarriaga-Zuluaga

López-Lezama

Villada

2018

TecnoL.

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This paper presents a model and a solution approach for the transmission network expansion planning (TNEP) problem that integrates security constraints given by weighted transmission loading relief (WTLR) indexes. Such indexes integrate shift and power distribution factors and allow to measure the severity of overloads in normal conditions and under any single contingency. Furthermore, the inclusion of small-scale generation was considered as complementary to TNEP solutions. The proposed model was solved by means of the metaheuristic NSGA-II (Non-dominated Sorting Genetic Algorithm II), which enabled to find a set of solutions that represent a trade-off between the cost of the expansion plan and its security level. Several tests were performed on the 6-bus Garver system and the IEEE 24-bus reliability test system, thus showing the applicability of the proposed approach. It was found that the inclusion of small-scale generation in strategic nodes allows to reduce the cost of expansion plans and increases their level of security for single contingencies.

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“…The transmission network expansion planning (TNEP) problem consists on determining the optimal set of elements (typically lines and transformers) that must be installed in a network in order to allow a feasible operation in a predefined time horizon at a minimum cost [1]. In general, the TNEP problem is a large-scale, mixed-integer, non-linear and non-convex optimization problem which solution is a challenging task.…”

Section: Introductionmentioning

confidence: 99%

“…Despite of being common in real applications, repowering is not usually modeled in the classical TNEP problem. In [1] the authors propose repowering and reconfiguration as non-conventional solution candidates for the TNEP problem; however, they do not consider the inclusion of generation. On the other hand, in [17] and [18] repowering is restricted to the distribution expansion planning.…”

Section: Introductionmentioning

confidence: 99%

“…-(21). The objective function, given by(1), consists on minimizing the operation and investment costs associated to the expansion plan. The first term of the objective function represents the investment cost of new lines; the second term is the cost of repowering an existing line; the third term is the investment cost of a new circuit with the characteristics of a repowered one; the fourth and fifth terms represent the investment and operative costs of a new generator, respectively; finally, the sixth term is the cost of unmet demand.…”

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confidence: 99%

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Transmission network expansion planning considering repowering and integration of small-scale generation

Zuluaga¹,

López-Lezama²,

Galeano³

2018

ces

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This paper presents a new modeling approach for the transmission network expansion planning (TNEP) considering repowering of circuits and integration of small-scale generation. The TNEP consists on determining the new assets that will be needed in the network to meet a forecasted demand. Traditionally, the candidate solutions of this problem only consider the integration of new lines or transformers. In this paper we expand the candidate solutions to include repowering of circuits. Also, the integration of small-scale generation is considered. The TNEP problem is modeled as a mixed integer linear programming problem and solved using the software GAMS. Several tests are performed on the Garver system and IEEE 24 bus test system showing the applicability of the proposed model. Results show that circuit repowering in strategic corridors, combined with the installation of small-scale generation, contributes to a significant reduction of the cost of the TNEP.

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Transmission network expansion planning considering repowering and reconfiguration

Cited by 23 publications

References 26 publications

Transmission Network Expansion Planning Considering Line Switching

Transmission Network Expansion Planning Considering Line Switching

Transmission network expansion planning considering weighted transmission loading relief nodal indexes

Transmission network expansion planning considering repowering and integration of small-scale generation

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