Interdependencies and reliability in the combined ICT and power system: An overview of current research

Tøndel, Inger Anne; Foros, Jørn; Kilskar, Stine Skaufel; Hokstad, Per; Jaatun, Martin Gilje

doi:10.1016/j.aci.2017.01.001

Cited by 58 publications

(49 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This permits concluding that any additional 0 eigenvalue in L or B due to a partition leads to a new 0 eigenvalue in S. Theorem 1. Consider the MG closed-loop dynamics (17) characterized by the system matrix S (18) that depends on the communication Laplacian matrix L (10). Let N (S) and N (L) be the null space of S and L, respectively.…”

Section: Discussionmentioning

confidence: 99%

“…The scope of this paper is bounded to islanded MGs driven by VSI implementing decentralized droop control [5] for active Identifying, understanding, and analyzing such interdependencies are significant challenges [9]. There are numerous studies on interdependencies in combined power and communication systems (see a recent state-of-the-art review in [10]). Many of them have provided conceptual insights into critical interdependencies, and/or statistical tools for risk assessment, e.g.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Analysis of Consensus-Based Islanded Microgrids Subject to Unexpected Electrical and Communication Partitions

Rosero

Velasco

Martí

et al. 2019

IEEE Trans. Smart Grid

View full text Add to dashboard Cite

Microgrids are power systems consisting of an electrical network composed by distributed loads and generation units that may include a communication network for improved operation. The considered microgrid in islanded mode is driven by voltage source inverters implementing decentralized droop control for active power sharing together with a communicationbased consensus algorithm for frequency regulation. This paper analyses the microgrid performance subject to network failures that provoke network partitions. It is considered that the electrical partition leads to several sub-microgrids working in parallel where the power demand can be always guaranteed by the generation units, and the communication partition leads to several consensus algorithms also working in parallel. The double partitioning is analyzed through a closed-loop system model derived using the power flow equations that includes the electrical and communication connectivity. Analytical expressions for the steady-state values for both frequency and active power depending on the partitioning are derived. Selected experimental results on a low-scale laboratory microgrid illustrate the (undesirable) impact that unexpected partitions have in system performance.power sharing together with a communication-based consensus algorithm for frequency regulation [6].Apart from the known impact that natural disasters have in power systems, e.g. [7], the use of communication networks also impacts power systems, e.g. [8]. Hence, the interdependency between the electrical network and the communication network makes the problems of reliability, operation, and security more complex than in the traditional power grid.

show abstract

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Analysis of Consensus-Based Islanded Microgrids Subject to Unexpected Electrical and Communication Partitions

Rosero

Velasco

Martí

et al. 2019

IEEE Trans. Smart Grid

View full text Add to dashboard Cite

show abstract

“…The required volume of data is massive, including models, control parameters, live measurements and signals across the coordinated assets. In addition, communicating these data with minimum delays and no corruption and securely is a significant ICT challenge; that is why cyber security is a leading topic for future power systems [37].…”

Section: Implementation Challengesmentioning

confidence: 99%

Provision of Ancillary Services by Wind Power Generators

Attya¹,

Domínguez‐García²

2020

Advances in Modelling and Control of Wind and Hydrogenerators

View full text Add to dashboard Cite

The current and future power systems foresee very deep penetration of renewable power plants into the generation mix, which will make the provision of ancillary services by renewables an ultimate necessity. This would be further emphasised when green power stations replace conventional power plants that rely on fossil fuels. In this context, many control methodologies could be applied to the controllers of the green generators to enable the provision of these services, mainly frequency support and voltage regulation. Most of the available models (i.e. in power system simulators) do not include such supplementary controls to provide ancillary services. Hence, this chapter exploits key examples of these controllers that proved to be efficient and widely accepted. In addition, this chapter considers their integration into the conventional controls of green generators, where the focus is on wind energy.

show abstract

“…Die Kopplungen mehrere Infrastruktursysteme führt zu der Herausbildung von "System of Systems", welche als komplexe Systeme begriffen werden. Tondel et al (2017) analysieren den gegenwärtigen Forschungsstand und stellen fest, dass es selbst bei alleiniger Betrachtung der Interdependenz von Energie-und IKT-Systemen bereits an geeigneten Methoden für die Identifikation der vielfältigen Interdependenzen mangele.…”

Section: Anpassungen Von Sicherheitsphilosophienunclassified