Availability Assessment Methods for HVDC Systems: a Review

Sessa, Sebastian Dambone; Chiarelli, A.; L'Abbate, A.; Benato, Roberto

doi:10.1109/aeit-hvdc.2019.8740550

Cited by 9 publications

(9 citation statements)

References 15 publications

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Section: Markov State Space Diagramsmentioning

confidence: 99%

“…By considering a single component of a HVDC point-to-point system, it is possible to analytically represent, in matrix form, the transitions of the component from one particular state to the other, with any spare management configuration. For example, for the GIS sub-systems of Figure 1, i.e., the sub-systems 1, 9 and 13, a possible Markov state space diagram is represented in Figure 2a [1], where: a is the probability that the needed parts for repair are available at site; u is the probability that the spare needed to repair the component is not available at site; τrestock is the local store replenish rate; τrefill is the lacking spare part's refill rate; γ is the time rate for placing a component in service.…”

Section: Markov State Space Diagramsmentioning

confidence: 99%

“…s i column vectors, which are identified as the event vectors for the component events C E1 (1) , C E1 (2) , . .…”

Section: Multi-state Matrix Approachmentioning

confidence: 99%

“…This paper is an expanded version of the work presented by the authors in [1], which aims at giving an overview of the main approaches to assessing the overall availability of High-Voltage Direct Current (HVDC)-transmission links based on the Voltage Source Converter (VSC) technology. With respect to [1], this paper considers the presence of the HVDC-VSC conversion systems in the availability assessment of an HVDC link by taking into account the different converter technologies and redundancy strategies. These aspects, which were totally disregarded in [1], are fundamental to correctly assessing the overall availability of HVDC-VSC links.…”

Section: Introductionmentioning

confidence: 99%

“…With respect to [1], this paper considers the presence of the HVDC-VSC conversion systems in the availability assessment of an HVDC link by taking into account the different converter technologies and redundancy strategies. These aspects, which were totally disregarded in [1], are fundamental to correctly assessing the overall availability of HVDC-VSC links.…”

Section: Introductionmentioning

confidence: 99%

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Availability Analysis of HVDC-VSC Systems: A Review

2019

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This work stems from the worldwide increasing need to precisely consider, in the design phase of an HVDC project, the availability of the HVDC system. In this paper, an overview of the availability assessment methods for HVDC-VSC transmission systems is presented. In particular, the state of the art of the procedures to estimate the availability of both the HVDC link reparable components and the conversion system on the basis of the converter configuration is given. The theoretical fundamentals of each method, together with their practical applications, have been described, in order to highlight the limits and the potentialities of each approach. The authors aim at giving a guide to choosing the best computation approach on the basis of the specific needs of the users and at summarizing all the key aspects which can be taken into account during the availability assessment of HVDC-VSC links.

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Section: Markov State Space Diagramsmentioning

confidence: 99%

Section: Markov State Space Diagramsmentioning

confidence: 99%

“…s i column vectors, which are identified as the event vectors for the component events C E1 (1) , C E1 (2) , . .…”

Section: Multi-state Matrix Approachmentioning

confidence: 99%