The Pan-European reference grid developed in ELECTRA for deriving innovative observability concepts in the Web-of-Cells framework

Marinelli, Mattia; Pertl, Michael; Rezkalla, Michel; Kosmecki, Michał; Canevese, Silvia; Obushevs, Artjoms; Morch, Andrei

doi:10.1109/upec.2016.8114088

Cited by 9 publications

(10 citation statements)

References 7 publications

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“…Finally, v j l,m is a binary decision variable used for determining the involvement of the cross-cell reserve allocation: (18) Similar to Equation (12), P l,l and P l,m can be expressed as: …”

Section: Multiple Cells-based Reserve Allocation Modelmentioning

confidence: 99%

“…These range from developing proper control schemes for individual component operation such as hierarchical aggregation method [9,10] to radical rethinking of system operations [11][12][13][14]. Traditionally, the system is kept secure by distinguishing the role between transmission system operators (TSO) and distribution system operators (DSO).…”

Section: Introductionmentioning

confidence: 99%

“…To address the aforementioned problem, the European FP7 project ELECTRA IRP proposes and develops a Web-of-Cells (WoC) architecture for operating the future power system [11][12][13][14]. In this approach, the power systems operation is divided into connected cells, each responsible for their own balancing and voltage control, thus establishing a robust, decentralized horizontal decomposition as opposed to the conventional centralized and vertical system operation.…”

Section: Introductionmentioning

confidence: 99%

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Robust Allocation of Reserve Policies for a Multiple-Cell Based Power System

Lan²,

Heussen³

et al. 2018

Energies

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This paper applies a robust optimization technique for coordinating reserve allocations in multiple-cell based power systems. The linear decision rules (LDR)-based policies were implemented to achieve the reserve robustness, and consist of a nominal power schedule with a series of linear modifications. The LDR method can effectively adapt the participation factors of reserve providers to respond to system imbalance signals. The policies considered the covariance of historic system imbalance signals to reduce the overall reserve cost. When applying this method to the cell-based power system for a certain horizon, the influence of different time resolutions on policy-making is also investigated, which presents guidance for its practical application. The main results illustrate that: (a) the LDR-based method shows better performance, by producing smaller reserve costs compared to the costs given by a reference method; and (b) the cost index decreases with increased time intervals, however, longer intervals might result in insufficient reserves, due to low time resolution. On the other hand, shorter time intervals require heavy computational time. Thus, it is important to choose a proper time interval in real time operation to make a trade off.

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Section: Multiple Cells-based Reserve Allocation Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Robust Allocation of Reserve Policies for a Multiple-Cell Based Power System

Lan²,

Heussen³

et al. 2018

Energies

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“…current, Q = const. impedance, f p = 1.5, f q = -1) [37]. The voltage dependence is defined according to the ZIP definition, the frequency dependence is linear and the 315 parameters are set according to the common practice for stability studies [38].…”

Section: Case Studymentioning

confidence: 99%

A decision support tool for transient stability preventive control

Pertl

Weckesser

Rezkalla

et al. 2017

Electric Power Systems Research

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The paper presents a decision support tool for transient stability preventive control contributing to increased situation awareness of control room operators by providing additional information about the state of the power system in terms of transient stability. A timedomain approach is used to assess the transient stability for potentially critical faults. Potential critical fault locations are identified by a critical bus screening through analysis of pre-disturbance steady-state conditions. The identified buses are subject to a fast critical contingency screening determining the actual critical contingencies/buses. These two screenings aim at reducing the computational burden of the assessment, since only contingencies considered as critical are taken into account. The critical clearing times for the critical contingencies are determined. A preventive re-dispatch of generators to ensure a predefined minimum critical clearing time for faults at all buses is proposed, while costs are minimized. The results of the assessment are presented to the control room operator, who decides to accept the suggested dispatch or to repeat the assessment considering additional user-specific constraints. The effectiveness of the proposed method is demonstrated on a standard nine-bus and the New England test system.

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“…It has been developed to serve as a future HV benchmark grid for RES integration studies. Detailed information about the Pan-European simulation model is published in [17]. The simulation model was developed in the power system simulation software DIgSILENT PowerFactory.…”

Section: B Reference Grid and Modeling Considerationsmentioning

confidence: 99%

A novel grid-wide transient stability assessment and visualization method for increasing situation awareness of control room operators

Pertl

Rezkalla

Marinelli

2016

2016 IEEE Innovative Smart Grid Technologies - Asia (ISGT-Asia)

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Abstract-The aim of the paper is to introduce a grid-wide assessment method to determine the transient stability margin and visualize it effectively to increase the situation awareness of control room operators. Critical area(s) with insufficient transient stability margin have to be identified in order to be able to take appropriate preventive actions. The introduced method evaluates the transient stability margin with a time-domain approach by using the voltage angle of several buses across the power system. Information about the severity of a contingency and the location of the most critical buses is derived. Moreover, it is shown that the method facilitates the visual examination of transient stability. It provides control room operators with essential information about the state of the system and enables them to take appropriate preventive actions if insufficient transient stability margins are detected.

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The Pan-European reference grid developed in ELECTRA for deriving innovative observability concepts in the Web-of-Cells framework

Cited by 9 publications

References 7 publications

Robust Allocation of Reserve Policies for a Multiple-Cell Based Power System

Robust Allocation of Reserve Policies for a Multiple-Cell Based Power System

A decision support tool for transient stability preventive control

A novel grid-wide transient stability assessment and visualization method for increasing situation awareness of control room operators

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