Control of phase shifting transformers by multiple transmission system operators

Marinakis, Adamantios; Glavić, Mevludin; Cutsem, Thierry Van

doi:10.1109/pct.2007.4538303

Cited by 21 publications

(16 citation statements)

References 9 publications

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“…This infeasibility could be due to the non-convergency of the TSO's OPF or load flow (in the case of ENM). In these cases, additional coordination should be designated to bring the solution back inside the feasible region [31]. For instance, Ref.…”

Section: Implementation and Evaluation Of The Decentralized Optimizationmentioning

confidence: 99%

On the inter-area optimal voltage and reactive power control

Alizadeh‐Mousavi

Cherkaoui

2013

International Journal of Electrical Power & Energy Systems

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a b s t r a c tScheduling voltage and reactive power is one of the major problems and concerns of the Transmission System Operators (TSOs) especially after deregulation of power market. Due to locally provision of the reactive power resources, each TSO has developed its own specific method. Hence, the voltage and reactive power coordination in the interconnected system has got less attention. In this respect, current practices of different TSOs in Europe and North America, as examples of interconnected power systems, are investigated in this paper. Afterwards, it focuses on the inter-area optimization of the voltage and reactive power. Instead of performing the studies around one particular optimization, different aspects of the mathematical formulation of the optimization problem in the interconnected power system, including objective function, constraints and appropriate modeling of neighboring areas, are revisited more in depth. Various possible implementations of coordinated approaches, including centralized and decentralized structures, as well as non-coordinated approach in collaborative and non-collaborative environments are studied. In this respect, new contributions are proposed in this paper by using the distributed slack bus model and the limitation of the voltage and reactive power in the interconnections links. The comparative analysis between the available and proposed methods are discussed in terms of sub-optimality and time to convergence. The discussions are based on New England 39 bus system and the presented results in the literatures.

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Section: Implementation and Evaluation Of The Decentralized Optimizationmentioning

confidence: 99%

On the inter-area optimal voltage and reactive power control

Alizadeh‐Mousavi

Cherkaoui

2013

International Journal of Electrical Power & Energy Systems

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“…The issue, however, deserves further consideration. A possible framework was proposed in [30]. The proposed solution is the Nash equilibrium of a sequence of optimizations performed by the various TSOs, each of them taking into account the other TSO's settings as well as operating constraints relative to the whole system.…”

Section: E Control Of Psts By Multiple Tsosmentioning

confidence: 99%

Minimal Reduction of Unscheduled Flows for Security Restoration: Application to Phase Shifter Control

Marinakis

Glavić

Cutsem

2010

IEEE Trans. Power Syst.

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Abstract-More and more transmission system operators, noticeably in Europe, equip their systems with phase shifting transformers to counteract transit flows that take place in a large meshed interconnection. This paper proposes algorithms for the coordinated control of several phase shifters by one operator with the objective of reducing the unscheduled flow through its system. Minimum reduction of unscheduled flow and minimum deviation with respect to present operating point are sought in order to minimize the trouble caused, while ensuring secure operation. Attention is paid to combining pre-and post-contingency controls. The resulting algorithms, simple and compatible with real-time applications, are illustrated on a realistic test system. Index Terms-Corrective control, correctively secure operation, optimal power flow, phase shifting transformer, preventive control, transit flow, unscheduled flow.

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“…The problem is not solved even if, following the idea proposed in [20], TSs are asked to include in their clearing problems (1-4) branch flow constraints of the type:…”

Section: B Emerging Issuesmentioning

confidence: 99%

“…Coming back to the overloaded branch b, this choice suggests that the constraint (20), reflecting the share of the transmission capacity among the TSs, should be:…”

Section: B Transmission Allocationmentioning

confidence: 99%

Energy and Transmission Allocation in the Presence of Overlapping Electricity Markets

Marinakis

Bakirtzis

Cutsem

2010

IEEE Trans. Power Syst.

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Abstract. The possibility for market participants to simultaneously place their bids in different markets across an interconnection is investigated in this paper. Transaction schedulers settle multilateral transactions among participants, while a central entity coordinates the overall operation through interactions with the transaction schedulers. Two issues are dealt with in this context. First, the market participants are allowed to place their bids simultaneously in more than one transactions scheduler's market, and, second, the available transmission capacity is fairly shared among the transaction schedulers. Economically interesting transactions are favored, while confidentiality of market data and independence of transaction schedulers' clearing mechanisms are preserved. The corresponding iterative algorithm is illustrated in detail on a 15-bus as well as the IEEE-RTS system.

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Control of phase shifting transformers by multiple transmission system operators

Cited by 21 publications

References 9 publications

On the inter-area optimal voltage and reactive power control

On the inter-area optimal voltage and reactive power control

Minimal Reduction of Unscheduled Flows for Security Restoration: Application to Phase Shifter Control

Energy and Transmission Allocation in the Presence of Overlapping Electricity Markets

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