Study of Resistive-Type Superconducting Fault Current Limiters for a Hybrid High Voltage Direct Current System

Chen, Lei; He, Hailong; Li, Guocheng; Chen, Hongkun; Wang, Lei; Chen, Xiaoyuan; Tian, Xin; Xu, Ying; Tang, Yuejin

doi:10.3390/ma12010026

Cited by 18 publications

(5 citation statements)

References 30 publications

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“…Energy storage and an SFCL can be used in a flexible DC system powered by renewable sources to smooth out voltage swings under normal conditions and limit current spikes in the case of a malfunction [25,26]. Few studies have looked at the self-acting protection of power electronic equipment and DC-DC converters utilising a low-cost SFCL device for their applications in renewable-based microgrids (fault durations are generally from hundreds to thousands of milliseconds; [27][28][29]). Contrary to what is found in system-level analyses [30,31], power electronic switches and devices can be seriously harmed by errors that last only milliseconds.…”

Section: Related Workmentioning

confidence: 99%

Utilizing Parallel Superconducting Element as a Novel Approach of Flux-Coupled Type SFCL to Limit DC Current in the System

et al. 2022

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To lessen the amount of energy lost during transmission, electricity is increasingly being sent using high-voltage lines. Transmission loss in a DC system is lower than in an AC system over long distances. The DC system can improve the efficiency of long-distance transmission by connecting power grids with different requirements. The DC method is becoming popular since it helps to keep the grid stable. Managing and blocking DC flow is crucial to system functionality. In this study, we explore the operation of a flux-coupled type superconducting fault current limiter (SFCL) in a DC system, where the two windings are connected in parallel to limit the fault current flow. A flux-coupled type SFCL is built by connecting two coils in parallel and a superconducting element (SE) in series with the secondary coil. The functions of an SFCL of the flux-coupled kind are equivalent in both direct and alternating current systems. Because of the opposing magnetic fluxes produced by the two coils, the voltage generated by the parallel connection of the coils is always zero. Inadequate SE leads to an increase in resistance, inhibiting the cancellation of opposing magnetic fluxes and hence a loss in power. Connecting the two coils in series allows voltage to be generated while the fault current is limited. To further validate the performance of SFCL with varying resistance and inductance, the system is additionally tested on the IEEE 39 bus system. The MATLAB/SIMULINK software suite is used to run the test system.

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Section: Related Workmentioning

confidence: 99%

Utilizing Parallel Superconducting Element as a Novel Approach of Flux-Coupled Type SFCL to Limit DC Current in the System

et al. 2022

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“…However, the requirement of breaking a steeply increasing fault current, with high magnitudes and the absence of current zero, makes it a challenge to interrupt DC faults [13]. A few prototypes of the DCCB have been proposed, but a commercial solution has not been developed yet owing to the constantly increasing levels of fault currents, limited performance of breaker components like the ultrafast disconnector switch (UFS) and arc suppression chamber, high overvoltage and large fault energy dissipation [14][15][16]. Moreover, there is a lack of understanding regarding protection coordination when considering circuit breakers and converters in a HVDC system.…”

Section: Motivation For Researchmentioning

confidence: 99%

Appropriate Protection Scheme for DC Grid Based on the Half Bridge Modular Multilevel Converter System

et al. 2019

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The half bridge (HB) modular multilevel converter (MMC) technology is considered a breakthrough to mitigate the shortcomings of the conventional voltage source converter (VSC) in high-voltage direct-current (HVDC) grid application. However, interruption of the DC fault is still a challenge due to fast di/dt and extremely high levels of DC fault current. The fault interruption using a DC circuit breaker (DCCB) causes enormous energy dissipation and voltage stress across the DCCB. Therefore, the use of a fault current limiter is essential, and the superconducting fault current limiter (SFCL) is the most promising choice. Past literature has focused on the operating characteristics of DCCB or limiting characteristics of the SFCL. However, there is little understanding about the fault interruption and system recovery characteristics considering both DCCB and SFCL. In this paper, we have presented a comparative study on fault interruption and system recovery characteristics considering three types of fault limiting devices in combination with circuit breaker. The transient analyses of AC and DC system have been performed, to suggest the most preferable protection scheme. It has been concluded that, amongst the three fault limiting devices, the Hybrid SFCL in combination with circuit breaker, delivers the most desirable performance in terms of interruption time, recovery time, energy dissipation and voltage transients.

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“…This improved management of energy during and after fault, and also minimized the output power fluctuations. A flux coupling SFCL (FC-SFCL) was proposed for a DFIG-based WF in [42,43]. The FC-SFCLs utilize both the property of flux coupling topology and the SFCL to effectively minimize the overall loss of the system.…”

Section: Introductionmentioning

confidence: 99%

Transient performance improvement of DFIG‐based wind farm by H‐bridge fault current limiter

Hossain,

Hasan,

Upadhay

et al. 2024

Applied Research

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Despite the unique advantages a doubly fed induction generator (DFIG) offers to the grid‐integrated renewable energy systems, they have a limitation of being susceptible to grid fault as their stator windings are directly connected to the grid. The fault current limiters (FCLs) provide a sustainable solution by enhancing the fault ride‐through capability and thus it improve the transient performance of a DFIG. In this work, a multi‐inductor‐based H‐bridge fault current limiter (HBFCL) is proposed to augment the transient performance of a DFIG. The operational efficacy of the HBFCL is evaluated through the administration of both symmetrical and asymmetrical fault scenarios. The effectiveness of the HBFCL is further investigated by comparing the performance of the HBFCL with that of the bridge‐type series dynamic braking resistor (BSDBR). Both the graphical and numerical interpretations of the simulation result assert that the HBFCL improves the transient performance of a DFIG‐based wind farm and outweighs the performance of the BSDBR in all aspects.

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Study of Resistive-Type Superconducting Fault Current Limiters for a Hybrid High Voltage Direct Current System

Cited by 18 publications

References 30 publications

Utilizing Parallel Superconducting Element as a Novel Approach of Flux-Coupled Type SFCL to Limit DC Current in the System

Utilizing Parallel Superconducting Element as a Novel Approach of Flux-Coupled Type SFCL to Limit DC Current in the System

Appropriate Protection Scheme for DC Grid Based on the Half Bridge Modular Multilevel Converter System

Transient performance improvement of DFIG‐based wind farm by H‐bridge fault current limiter

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