Transmission Network Expansion Planning Considering Line Switching

Meneses, Marco; Nascimento, Edgar; Macedo, Leonardo H.; Romero, Rubén

doi:10.1109/access.2020.3003973

Cited by 9 publications

(5 citation statements)

References 37 publications

(57 reference statements)

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“…Network flow constraints for the existing lines and candidate lines along with the option of switching existing lines is enforced in constraints ( 59)- (63). Voltage angle limits is given by ( 64) and the maximum number of switchable lines is restricted by constraint (65). The solution of the TEP planning problem will identify the installation of candidate lines in the planning horizon, and identification of lines to be switched off from the network in the operating scenarios.…”

Section: Ots and Transmission Expansion Planningmentioning

confidence: 99%

“…Their results demonstrate that the practice of DLR and OTS in the NEP is complementary and can reduce the investment cost up to 20%. The modification of network topology using OTS in an expansion planning is also studied by [65] where the switching of lines is considered in the operation stage of the problem. Only those lines are switched which can degrade the system performance.…”

Section: Ots and Transmission Expansion Planningmentioning

confidence: 99%

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The Role of Optimal Transmission Switching in Enhancing Grid Flexibility: A Review

et al. 2023

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The integration of variable renewable energy sources (RES) into power grids has resulted in a more complex operating environment for power system operators (SO), necessitating the need for increased grid flexibility. This is crucial for utilities, as the cost-effective utilization of existing infrastructure is necessary, given the prolonged construction period and high investment costs associated with building new power delivery facilities. Under the umbrella of smart grid, optimal transmission switching (OTS) is a cost-effective transmission technology that can alleviate concerns related to network congestion, limited transmission capacity, and high penetration of renewables. OTS is a concept that is integrated into the optimal power flow (OPF) problem such that it provides SO the choice to temporarily switch one or more lines out of service from the network. OTS is shown in the literature to have economic benefits, reduce operational cost, relieve network congestion, serve as a corrective mechanism for reducing voltage violations, improve system reliability, and minimize system loss. Despite the significant attention given to OTS by researchers over the past decade, no extensive review paper exists on the topic in the literature. Therefore, this paper provides a state-of-the-art overview of the OTS problem. The concept of OTS is explained by approximating the alternating current OPF problem into a linear direct current OPF problem. Various alternative models of the OTS problem proposed in the literature are discussed. The paper also analyzes the interaction between OTS and other flexibility options such as Dynamic thermal rating (DTR), Energy storage systems (ESS), and RES. Furthermore, the paper presents the general framework and impact of the short-term OTS problem on long-term expansion planning problems. Finally, an extensive literature review on the impact of OTS on system reliability is provided.

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Section: Ots and Transmission Expansion Planningmentioning

confidence: 99%

Section: Ots and Transmission Expansion Planningmentioning

confidence: 99%

The Role of Optimal Transmission Switching in Enhancing Grid Flexibility: A Review

et al. 2023

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“…Stochastic optimal TS model is developed to improve the power system security margins under renewable uncertainties [22]. TS aware mixed-integer linear programming model is developed for multi-scenario transmission network expansion planning (TNEP) problem [23]. Moreover, TS is also used for LSR [24], [25], which is the main focus of this paper.…”

Section: Preliminaries a Transmission Switching (Ts)mentioning

confidence: 99%

Load Shed Recovery With Transmission Switching and Intentional Islanding Methods After (N-2) Line Contingencies

et al. 2022

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Changing power system configuration may result in load shed recovery (LSR) because topology change can provide power flow control in meshed network. Some topologies may favor generation redispatch as compared to others and can eliminate line congestion which leads to LSR. One of the known methods for topology change is called transmission switching (TS) and research conducted in the past showed that TS is an effective means of mitigating load shedding. However, another method of topology control also exits and it is referred as intentional islanding (IIS). In this manuscript, we explore IIS as a potential solution for LSR. IIS based on generator coherency has been presented in literature for mitigating cascading failures. However, IIS has not been explored solely as a LSR mechanism. In this paper, we compare the LSR based on IIS with well known LSR algorithm based on TS. The comparison is performed for IEEE 39-bus system and IEEE 118-bus system. The results show that IIS has a potential to perform better than TS in terms of computational efficiency and LSR.INDEX TERMS Contingency analysis, load shed recovery, intentional islanding, transmission switching, topology control.

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“…From a traditional approach, these plans can correspond to: construction of large-scale power plants, expansion of transmission and distribution lines, increase of substation capacity, and so on. These upgrade activities belong to an approach known as Traditional Resource Planning (TRP) [18]. It is characterized for carrying out Supply Side Management (SSM).…”

Section: Integrated Resource Planning In Power Systemsmentioning

confidence: 99%

Demand response integration in microgrid planning as a strategy for energy transition in power systems

Mina-Casaran

Echeverry

Lozano

2021

IET Renewable Power Gen

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For a long time, the planning of power systems has considered technical and economic aspects related to Supply Side Management. Given that this traditional planning approach is not very flexible, and due to new technological trends like the adoption of smart grids, it has become necessary for demand to play an active role in the operation of power systems. This raises the need to implement a new process for power system planning, focusing on technologies such as microgrids with Demand Side Management, which contribute to the sustainable development of communities. In this paper, a comprehensive review of microgrid planning, considering energy end‐user participation through Demand Response, is carried out. In addition, the main features and implications of Demand Response programs in microgrid planning are presented. As a contribution, in order to trigger a paradigm shift on how power systems are planned, the benefits of bottom‐up microgrid planning are presented.

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Transmission Network Expansion Planning Considering Line Switching

Cited by 9 publications

References 37 publications

The Role of Optimal Transmission Switching in Enhancing Grid Flexibility: A Review

The Role of Optimal Transmission Switching in Enhancing Grid Flexibility: A Review

Load Shed Recovery With Transmission Switching and Intentional Islanding Methods After (N-2) Line Contingencies

Demand response integration in microgrid planning as a strategy for energy transition in power systems

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