A magnetic-core based fault current limiter for utility applications

Abeygunawardane, S. K.; Kumara, J. R. S. S.; Ekanayake, Janaka; Atputharajah, A.

doi:10.4038/jnsfsr.v39i3.3626

Cited by 3 publications

(2 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This information is presented in Table 3.1. There are variations in the design of saturable-core FCLs [AKEA11]. For example, a "magnetic FCL" uses a permanent magnet to saturate the core instead of a superconducting DC winding; the losses are consequently greater.…”

Section: Comparison Of Fcl Typesmentioning

confidence: 99%

Retraction notice to “Analysis of resistive SFCL in a test-bed microgrid” [Ain Shams Eng. J. 6 (2015) 883–892]

Khuntia

Samantaray

2018

Ain Shams Engineering Journal

View full text Add to dashboard Cite

Fault current levels in electrical systems are rising due to natural growth in demand, the increasing presence of distributed generation (DG), and increased network interconnection. This rising trend is expected to continue in the future.Marine vessel power systems are highly power-dense and are often safety-critical.Power system protection is increasingly challenging in these systems. Superconducting fault current limiters (SFCLs) offer an attractive solution to many of the issues faced.This thesis establishes and reviews the state of the art in resistive SFCL technology and application knowledge, and provides crucial research-based guidance for the adoption of resistive SFCLs in future power systems.The issues associated with the application of resistive SFCLs-including location, resistance rating, the recovery period, and interaction with protection systems-are demonstrated. The relationship between several resistive SFCL design parameters is established using a generic analytical approach, hence providing a framework for validating SFCL designs. In particular, it is shown that a particular SFCL resistance rating leads to a peak in the superconductor energy dissipation, which generally should be avoided.It is proven that resistive SFCLs have an inverse current-time characteristic, i.e., they will operate in a time that inversely depends upon the initial fault current magnitude. This knowledge is critical for underpinning the operation of a novel protection scheme using multiple resistive SFCLs. The scheme offers several advantages: very fast-acting operation in response to faults anywhere on the system under study; maximum prospective fault currents are prevented from occurring, reducing the duty on circuit breakers; inherent, fast-acting backup; and communications is not required. It is shown that the scheme is suited to highly-interconnected systems with a high presence of DG. The scheme is readily applicable to the design of future utility and marine vessel power systems.

show abstract

Section: Comparison Of Fcl Typesmentioning

confidence: 99%

Retraction notice to “Analysis of resistive SFCL in a test-bed microgrid” [Ain Shams Eng. J. 6 (2015) 883–892]

Khuntia

Samantaray

2018

Ain Shams Engineering Journal

View full text Add to dashboard Cite

show abstract

“…It has no potential for large‐scale application over a long period of time [10]. The magnetic FCL is big in volume and the consumption of magnetic material is also a problem [11]. Owing to the development and popularisation of power electronic technology, solid state FCL limiter has become one of the focuses of research.…”

Section: Introductionmentioning

confidence: 99%