Application of a novel approach of resistive‐type superconducting fault current limiter with a fast protection system in multi‐terminal direct current network,International Transactions on Electrical Energy Systems

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Application of a novel approach of resistive‐type superconducting fault current limiter with a fast protection system in multi‐terminal direct current network
International Transactions on Electrical Energy Systems ( IF 1.9 ) Pub Date : 2020-08-17 , DOI: 10.1002/2050-7038.12568
Yacine Ayachi Amor ₁ , Gaëtan Didier ₂ , Farid Hamoudi ₁ , Thierry Lubin ₂

Affiliation

The key obstacle in the realization of multiterminal high‐voltage direct current (MTDC) grids is the lack of existing commercial protection that a device can withstand the DC fault. Although different HVDC circuit breaker technologies have been investigated and demonstrators tested by manufacturers, the innovation of such devices to ensure a reliable protection system has not been proven yet due to the maximum breaking capability limitation especially in MTDC grids. To this, a combination of superconducting fault current limiter (SFCL) technology with a fast DC circuit breaker could bring a solution to this bottleneck. In this work, a new application of an accurate model of resistive‐type SFCL (rSFCL) considering both the electrical and thermal behaviors is proposed to work together with a proactive hybrid DC circuit breaker (PHCB) to fulfill the whole system protection. The viability of the proposed approach is verified under a worst DC fault case‐scenario that imposed in a five‐terminal MTDC meshed grid. The numerical analysis and simulations are carried out using (EMTP‐rv) software, while the obtained results show how significantly the proposed rSFCL can reduce the fault current and enhance the breaking capability. Also, a positive interaction has been observed between the rSFCL and PHCB in terms of design sizing and operation performance.

中文翻译：

具有快速保护系统的新型电阻型超导故障限流器在多端直流网络中的应用

实现多端子高压直流（MTDC）电网的主要障碍是缺少设备可以承受DC故障的现有商业保护。尽管已经对不同的HVDC断路器技术进行了研究并由制造商进行了测试，但由于最大的分断能力限制，尤其是在MTDC电网中，这种设备的创新以确保可靠的保护系统尚未得到证实。为此，将超导故障限流器（SFCL）技术与快速直流断路器结合使用可以解决此瓶颈问题。在这项工作中提出了一种兼顾电气和热性能的电阻型SFCL（rSFCL）精确模型的新应用，该模型可与主动混合直流断路器（PHCB）配合使用，以实现整个系统的保护。在五端MTDC网格电网中施加的最严重的直流故障情况下，验证了所提方法的可行性。使用（EMTP-rv）软件进行了数值分析和仿真，而获得的结果表明所提出的rSFCL能够显着降低故障电流并提高分断能力。同样，在设计尺寸和操作性能方面，rSFCL和PHCB之间已观察到积极的相互作用。在五端MTDC网格电网中施加的最严重的直流故障情况下，验证了所提方法的可行性。使用（EMTP-rv）软件进行了数值分析和仿真，而获得的结果表明所提出的rSFCL能够显着降低故障电流并提高分断能力。同样，在设计尺寸和操作性能方面，rSFCL和PHCB之间已观察到积极的相互作用。在五端MTDC网格电网中施加的最严重的直流故障情况下，验证了所提方法的可行性。使用（EMTP-rv）软件进行了数值分析和仿真，而获得的结果表明所提出的rSFCL能够显着降低故障电流并提高分断能力。同样，在设计尺寸和操作性能方面，rSFCL和PHCB之间已观察到积极的相互作用。

更新日期：2020-10-11

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