Use of superconducting fault current limiters for mitigation of distributed generation influences in radial distribution network fuse–recloser protection systems

Wheeler, Keaton A.; Elsamahy, Mohamed; Faried, S.O.

doi:10.1049/iet-gtd.2015.1156

Cited by 38 publications

(29 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The limitation of the fault current is essential to realize protection considering the limitation in the DCCB capability. The AC feeding current can be restrained using a parallel-connected thyristor in previous works [18][19][20][21]. Therefore, the discharging current limitation and rapid decaying freewheeling current are the focus in the present study.…”

Section: Protection Demandmentioning

confidence: 99%

“…To investigate the FCL ability, the bias voltage adopted in the scheme presented in Reference [15] is omitted for convenience, and the values of the FCL reactor and energy dissipation resistance are maintained in comparison with the FCL ability (R FCL = 20 Ω, L FCL = 250 mH). In accordance with the FCL method in Reference [21], the AC feeding current can be limited via a parallel-connected thyristor, and the FCL ability is compared on the basis of the capacitor discharging current in the present study. Therefore, the AC feeding current is eliminated by switching off the start connector in the simulation while the DCCB operates.…”

Section: Fault Current-limiting Ability Comparisonmentioning

confidence: 99%

“…The superconducting fault limiter (SFCL) has attracted considerable attention because its nonlinear impedance characteristics can be used to limit the increase in fault current rate to provide a necessary time for relay protection. The SFCL can mainly be divided into resistive-SFCL (R-SFCL) and inductive-SFCL (I-SFCL) [21]. The study concludes that R-SFCL can constrain the amplitude of fault current, but reduces the increase in fault current rate differently, and I-SFCL can delay the increase in fault rate significantly [22].…”

Section: Introductionmentioning

confidence: 96%

“…State-of-the-art fault current-limiting (FCL) techniques can be classified into improved SM topologies [7][8][9][10][11][12], auxiliary FCL circuits (FCLC) [13][14][15][16][17][18][19][20], and fault current limiters [21][22][23][24][25]. The SM topology has been modified to reinforce its fault handling ability, because the classical half-bridge SM (HBSM) is likely to be destroyed under overcurrent if no proper protection scheme is applied, even if insulated gate bipolar translators (IGBTs)are blocked in a timely fashion [26].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Enhanced Fault Current-Limiting Circuit Design for a DC Fault in a Modular Multilevel Converter-Based High-Voltage Direct Current System

et al. 2019

View full text Add to dashboard Cite

The main weakness of the half-bridge modular multilevel converter-based high-voltage direct current (MMC-HVDC) system lies in its immature solution to extremely high current under direct current (DC) line fault. The development of the direct current circuit breaker (DCCB) remains constrained in terms of interruption capacity and operation speed. Therefore, it is essential to limit fault current in the MMC-HVDC system. An enhanced fault current-limiting circuit (EFCLC) is proposed on the basis of fault current study to restrict fault current under DC pole-to-pole fault. Specifically, the EFCLC consists of fault current-limiting inductance L F C L and energy dissipation resistance R F C L in parallel with surge arrestor. L F C L reduces the fault current rising speed, together with arm inductance and smoothing reactor. However, in contrast to arm inductance and smoothing reactor, L F C L will be bypassed via parallel-connected thyristors after blocking converter to prevent the effect on fault interruption speed. R F C L shares the stress on energy absorption device (metal oxide arrester) to facilitate fault interruption. The DCCB requirement in interruption capacity and breaking speed can be satisfied effortlessly through the EFCLC. The working principle and parameter determination of the EFCLC are presented in detail, and its effectiveness is verified by simulation in RT-LAB and MATLAB software platforms.

show abstract

Section: Protection Demandmentioning

confidence: 99%

Section: Fault Current-limiting Ability Comparisonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Enhanced Fault Current-Limiting Circuit Design for a DC Fault in a Modular Multilevel Converter-Based High-Voltage Direct Current System

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Although the LVRT requirements for distribution systems are mainly applied to the medium-voltage (MV) level, their extension to the low-voltage (LV) distribution networks is currently It is worth mentioning that fault-current limitation has been proposed in the scientific literature for the protection of distribution systems. However, the proposed approaches mainly concern MV distribution networks, while, their aim is to ensure coordination between line protection means (e.g., relay-relay or relay (recloser)-fuse coordination [19,35,36]), without addressing the issue of coordination between line protection and the LVRT operation of the downstream DG-units. In other words, the purpose of applying fault-current limitation in these applications is different to that of the present work.…”

Section: Introductionmentioning

confidence: 99%

On the Conflict between LVRT and Line Protection in LV Distribution Systems with PVs: A Current-Limitation-Based Solution

Tsimtsios

Voglitsis²,

Perpinias³

et al. 2019

Energies

View full text Add to dashboard Cite

The upcoming adoption of low-voltage-ride-through requirements in low-voltage distribution systems is expected to raise significant challenges in the operation of grid-tied inverters. Typically, these inverters interconnect photovoltaic units, which are the predominant distributed energy resource in low-voltage distribution networks, under an umbrella of standards and protection schemes. As such, a challenging issue that should be considered in low-voltage distribution network applications, regards the coordination between the line protection scheme (typically consisting of a non-settable fuse) and the low-voltage-ride-through operation of photovoltaic generators. During a fault, the fuse protecting a low-voltage feeder may melt, letting the generator to continue its ride-through operation. Considering that the efficacy/speed of the anti-islanding detection is affected by ride-through requirements, this situation can lead to protracted energization of the isolated feeder after fuse melting (unintentional islanding). To address this issue, this paper proposes a fault-current-limitation based solution, which does not require any modification in the existing protection scheme. The operation principles, design, and implementation of this solution are presented, while, its effectiveness is supported by extensive simulations in a test-case low-voltage distribution system. A discussion on the presented results concludes the paper.2 of 20 under consideration [1,3]. LV distribution networks are expected to be dominated by inverter-interfaced DG-units (IIDGs), principally photovoltaic ones [1,4]. To this end, several inverter-design concepts have been proposed, aiming at the compliance of LV-IIDGs with LVRT requirements [5][6][7].Since LVRT requirements keep DG-units connected to the network during faults, they contradict the requirement for a quick anti-islanding detection. Indeed, despite the fact that several efficient passive [8], active [9][10][11][12], or other hybrid methods [13] have been proposed over the last years for fast anti-islanding detection, their cooperation with LVRT operation remains a challenging issue under research, especially under high DG-penetration conditions. The authors of [14] attempted to clarify this contradiction, by allowing a PV-unit to trip without complying with LVRT, if passive anti-islanding detection asserts. This approach is also recommended within IEEE 1547-2018 [2]. Although the anti-islanding detection is decoupled by LVRT operation in those cases, the adoption of LVRT requirements can affect its efficacy/speed. For example, LVRT affects any anti-islanding method that is based on the magnitude of grid-tied voltage. Compromising the anti-islanding detection is an issue of concern to DSOs and power system engineers [15,16]. This problem is further intensified when frequency disturbance ride through requirements are also adopted (e.g., low/high-frequency ride-through, rate-of-change-of-frequency ride-through, and voltage-phase-angle-changes ride-through [2]). Within this context, i...

show abstract

Magnetization Characteristics Due to Fault Angle of Transformer Type SFCL with Two Isolated Secondary Windings

Han

Lim

2020

J. Electr. Eng. Technol.

View full text Add to dashboard Cite

Use of superconducting fault current limiters for mitigation of distributed generation influences in radial distribution network fuse–recloser protection systems

Cited by 38 publications

References 18 publications

Enhanced Fault Current-Limiting Circuit Design for a DC Fault in a Modular Multilevel Converter-Based High-Voltage Direct Current System

Enhanced Fault Current-Limiting Circuit Design for a DC Fault in a Modular Multilevel Converter-Based High-Voltage Direct Current System

On the Conflict between LVRT and Line Protection in LV Distribution Systems with PVs: A Current-Limitation-Based Solution

Magnetization Characteristics Due to Fault Angle of Transformer Type SFCL with Two Isolated Secondary Windings

Contact Info

Product

Resources

About