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Congestion Management Using Optimal Transmission Switching
IEEE Systems Journal, 2018In this paper, a multiobjective-based congestion management (CM) methodology is proposed using the optimal transmission switching (OTS) strategies considering the minimization of the total operating cost and the maximization of probabilistic reliability as two conflicting objectives.
Surender Reddy Salkuti
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Optimal transmission switching analysis and marginal switching results
2011 IEEE Power and Energy Society General Meeting, 2011Strategically removing transmission lines from service has been shown to produce significant system cost savings. This optimization of the transmission network topology is known as transmission switching. The mixed-integer linear programming problem presented by Optimal Transmission Switching is too complex to solve on large systems in real time. Here,
Clayton Barrows, Seth Blumsack
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Optimal Transmission Switching Considering Probabilistic Reliability
IEEE Transactions on Power Systems, 2014A multi-objective (MO) optimization approach is proposed in this letter to develop optimal transmission switching strategies with minimal generating cost and maximal probabilistic reliability. The problem is solved via an evolutionary algorithm together with Monte Carlo simulation to capture the probabilistic nature of system component failures.
Chi Zhang
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Heuristic Prescreening Switchable Branches in Optimal Transmission Switching
IEEE Transactions on Power Systems, 2012This letter describes the development of a pre-screening method to select a few switchable line candidates, effectively reducing the number of integer variables in transmission switching problems. The numerical studies show that the proposed prescreening strategies accelerate identification of high-quality feasible solutions in optimal transmission ...
James Ostrowski, Cong Liu
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Optimal Transmission Switching With Short-Circuit Current Limitation Constraints
IEEE Transactions on Power Systems, 2016With the expansion and enhancement of the power transmission network, short-circuit current (SCC) has become a major concern in grid operations. While transmission switching is one effective solution to reduce the SCC without investing in additional equipment, switching lines could threaten system N-1 security.
Qing Xia, , Haiwang Zhong
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Optimal Transmission Switching with Injection Uncertainties
2020 IEEE Power & Energy Society General Meeting (PESGM), 2020In this paper, a robust optimization model is solved for the optimal transmission switching problem of the power networks to cater to the short-term uncertainties in the power injections of demands and renewable energy sources. The novelty of the proposed model is that the base-point generation of the conventional generators and the switching statuses ...
Snehil Chandra +3 more
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Robust optimal power flow with transmission switching
IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017To deal with the increasing penetration of uncertainties caused by renewable generations and uncertain loads, this paper proposes a novel robust optimization model for the optimal power flow (OPF) problem of power systems. In the model proposed, the generation and the network topology are co-optimized, and then the proposed robust optimal power flow ...
Donglei Sun +4 more
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Primal and dual bounds for Optimal Transmission Switching
2014 Power Systems Computation Conference, 2014It has been suggested that Optimal Transmission Switching (OTS) may reduce generator dispatch costs by as much as 10%, saving millions of dollars annually. However, this conclusion has been deduced primarily from studies using the DC power flow approximation on two power networks derived from the IEEE 118-bus and RTS-96 cases.
Carleton Coffrin +3 more
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Transmission congestion management through optimal transmission switching
2011 IEEE Power and Energy Society General Meeting, 2011In both restructured and vertically integrated power systems, it is desirable to transmit power to remote locations without causing any congestion and consequently avoiding inefficiency in generation dispatch. In this paper, in order to relieve network congestion, transmission switching is employed as a powerful tool to change network topology which ...
M. Khanabadi, H. Ghasemi
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Correcting Optimal Transmission Switching for AC Power Flows
2014 47th Hawaii International Conference on System Sciences, 2014Optimal Transmission Switching (OTS) has demonstrated significant savings potential on test systems when formulated in a linearized DC power flow framework. OTS solutions generated from DC models, however, are not guaranteed to produce a feasible AC dispatch.
Clayton Barrows +2 more
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