Facilitating emission reduction using the dynamic line switching and rating

Jabarnejad, Masood

doi:10.1016/j.epsr.2020.106600

Cited by 11 publications

(6 citation statements)

References 29 publications

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“…A more flexible model incorporating OTS with DTR is presented in [99], where the authors instead of using real time ratings for DTR, assumed a predetermined increased capacity i.e., 10% of the normal ratings. The combination of OTS with DTR in reducing carbon dioxide emissions is presented in [100]. In addition to the constraints on the system dispatch and transmission constraints, Numerical results proved effective in reducing CO2 emissions.…”

Section: A Ots With Dynamic Thermal Ratingmentioning

confidence: 99%

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: A Ots With Dynamic Thermal Ratingmentioning

confidence: 99%

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

et al. 2023

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“…The constraints (10) represents that the flow demand of each sink node takes value one and the flow demand of the singlesource node is set as 11) and ( 12) are arc capacity constraints, which represent that maximum flow on arcs cannot exceed the flow provided by the single-source node. In the other word, constraints (11) and (12) ensure that y l is zero when z l = 0 and 0 ≤ y l ≤ ( ∑ i∈Ω V v i ) when z l = 1.…”

Section: Srd-ots Modelmentioning

confidence: 99%

“…Recently, OTS has been proposed as a new method in mitigation of emergency states [3][4][5][6], economic dispatch [7][8][9][10] and system security enhancement [11,12]. In [3], a DC-OTS model was established by incorporating the DC power flow equations for handling with the congestion management, which is solved by a mixed integer programming (MIP) algorithm.…”

Section: Introductionmentioning

confidence: 99%

“…OTS is also be used to reduce network loss by switching the connection states of some transmission lines in [7]. Subsequently, OTS is introduced into the unit commitment problem considering security constraints to reduce operational cost, and various time-scale economic dispatch models have been proposed, including singleperiod [8], day-ahead [9], and real-time [10]. In response to the intuition that OTS may weaken the security and reliability of a power system, Hedman et al [11] proposed a robust optimisation transmission topology considering the deterministic N-1 security constraints.…”

Section: Introductionmentioning

confidence: 99%

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Robust optimal transmission switching for wind farm‐integrated power systems from a perspective of steady‐state security region

Liu

Wang

2022

IET Renewable Power Gen

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Optimal transmission switching (OTS) is a new method in improving operational security and economy of power systems. However, with continuous improvement in wind power penetration level, how to rationally describe the uncertainty of wind power play an important role in determining robustness of the OTS model. Against this issue, a system robust domain (SRD) developed by steady‐state security region is proposed to model the uncertainties of wind power outputs in OTS. This modelling method focuses on the robust domain of system rather than the robust intervals of variables in conventional robust optimisation, thus overcomes the high dependence of conventional robust optimisation on accurate estimation of each uncertainty intervals. SRD‐OTS is formulated and a decomposition algorithm is employed to obtain the optimal solution. The obtained optimal solution can maintain the operational security in the worst case of wind power outputs and minimize operational cost with the forecasted wind power outputs. In addition, robustness of the proposed SRD‐OTS can be adjusted by an uncertain budget. The numerical results on the IEEE test system verify effectiveness of the proposed SRD‐OTS and show that the optimal solution is still robust with a relative lower accuracy of wind power prediction.

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“…Luna et al [75] analyzed an EMS in an MG integrated with a grid-connected BESS that applies mixed-integer linear programming (MILP) to minimize the operating costs and improve the self-consumption strategy. Jabarnejad et al [76] developed an MILP approach to ensure an optimal power flow and to reduce the electricity generation costs and GHG emissions. Sarabi et al [77] proposed linear programming (LP) to minimize the annual energy invoice of railway station parking using plug-in electric vehicles (EV).…”

Section: Minimize the Costmentioning

confidence: 99%

Energy Management System in Microgrids: A Comprehensive Review

et al. 2021

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As promising solutions to various social and environmental issues, the generation and integration of renewable energy (RE) into microgrids (MGs) has recently increased due to the rapidly growing consumption of electric power. However, such integration can affect the stability and security of power systems due to its complexity and intermittency. Therefore, an optimal control approach is essential to ensure the efficiency, reliability, and quality of the delivered power. In addition, effective planning of policies for integrating MGs can help promote MG operations. However, outages may render these strategies inefficient and place the power system at risk. MGs are considered an ideal candidate for distributed power systems, given their capability to restore these systems rapidly after a physical or cyber-attack and create reliable protection systems. The energy management system (EMS) in an MG can operate controllable distributed energy resources and loads in real-time to generate a suitable short-term schedule for achieving some objectives. This paper presents a comprehensive review of MG elements, the different RE resources that comprise a hybrid system, and the various types of control, operating strategies, and goals in an EMS. A detailed explanation of the primary, secondary, and tertiary levels of MGs is also presented. This paper aims to contribute to the policies and regulations adopted by certain countries, their protection schemes, transactive markets, and load restoration in MGs.

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Facilitating emission reduction using the dynamic line switching and rating

Cited by 11 publications

References 29 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

Robust optimal transmission switching for wind farm‐integrated power systems from a perspective of steady‐state security region

Energy Management System in Microgrids: A Comprehensive Review

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