A novel simplified modeling method based on R–Q curve of resistive type SFCL in power systems

Liang, Siyuan; Tang, Yuejin; Ren, Li; Wang, Wei; Hu, Ziheng; Zhang, Bin; Fengshun, Jiao

doi:10.1016/j.physc.2019.04.016

Cited by 11 publications

(6 citation statements)

References 3 publications

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“…The ac impulse time should be within tens of milliseconds to prevent tape destruction and to get the variation of quenching resistance with different heat accumulations. The equations for calculating resistance and heat accumulation are as equation 6 [9]. If several experimental R-Q curves coincide with each other, these data could be utilized for calculation in the following steps.…”

Section: R-q Curve Based Evaluation Methodsmentioning

confidence: 99%

“…The external characteristics of the R-SFCL can be obtained through the equivalent simulation modelling of the quenching resistance. The current modeling methods mainly include the E-J power law based method, finite element method [7][8][9][10][11], the empirical formula based method [12], the heat circuit equivalent based method [13]. These methods have a guiding significance for the researches in the early stage of the dc R-SFCL manufacturing [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

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R-Q curve based evaluation method for current-limiting performance of DC R-SFCL in high voltage DC system

Wang

et al. 2020

Supercond. Sci. Technol.

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The current-limiting performance of the dc resistive-type superconducting fault current limiter (dc R-SFCL) is vital to the reliability in the high voltage dc current (HVDC) transmission system. It is expensive and difficult to utilize the discharging process of the precharged dc capacitor to evaluate the current-limiting performance. In this paper, a R-Q curve based evaluation method for current-limiting performance of dc R-SFCLs in dc system is proposed, which replaces the dc impulse experiment with ac impulse experiment. A ± 160kV dc SFCL prototype is designed by Guangdong Power Grid Co., Ltd., and tested to acquire the experimental heat accumulation Q and the experimental R-Q curve. Accordingly, the mathematical model consistent with the prototype is built in PSCAD. Finally, a fault condition is simulated in dc system to verify the feasibility of the R-Q curve based evaluation method. It is shown that the proposed method has superior properties in simplifying the testing platform, reducing the test requirements and costs, and providing reference for precise modeling of SFCLs.

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Section: R-q Curve Based Evaluation Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

R-Q curve based evaluation method for current-limiting performance of DC R-SFCL in high voltage DC system

Wang

et al. 2020

Supercond. Sci. Technol.

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“…The RQ model is based on the empirically observed dependence between the generated heat (Q) and the developed resistance of the SFCL (R) independently of the current value. In [29] and [33], empirical RQ curves are obtained for a YBCO tape. These types of curves can be implemented in look-up-tables for emulating the quenching phenomena of the SFCL, as shown in Figure 2.…”

Section: Rq Modelmentioning

confidence: 99%

Modelling of Resistive Type Superconducting Fault Current Limiter for HVDC Grids

2022

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The protection of high voltage direct current (HVDC) grids is a challenge considering that the protection system must detect, locate, and interrupt large fault currents in a few milliseconds. Resistive type superconducting fault current limiters (R-SFCL) can help solve that difficult task, reducing the extremely demanding ratings of HVDC circuit breakers. This paper presents different approaches to model R-SFCLs in order to analyze their suitability for assessing the performance of HVDC grid protection, including the step model, the exponential model, the RQ model, and the magneto-thermal model. In the first instance, the R-SFCL models are evaluated in a test grid to analyze their parameterisation and select the most adequate model for the study of HVDC grids. The RQ model is finally chosen for its simplicity but closer behavior to the magneto thermal model in terms of fault resistance dependency and resistance evolution curve. Then, the performance of an RQ type R-SFCL model in conjunction with a mechanical circuit breaker is evaluated in a multiterminal HVDC grid with different fault cases. This way, fault currents are greatly decreased as well as circuit breaker requirements. Hence, the R-SFCL under study enables a reliable protection of the HVDC grid.

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“…Extensive studies have been carried out on testing HTS tapes for resistive fault current limiter application. Llambes et al [25] and Hajdasz et al [26] studied the application of superpower tapes in SFCL; Schmidt et al [27] and Baldan et al [28,29] studied the application of AMSC tapes in SFCL; Ahn et al [30], Park et al [31], and Sheng et al [32] compared the tape structures from different postprocessing treatments in the application of SFCL; Lacroix et al [33,34] developed a novel structure to increase the NZPV (normal zone propagation velocity) of HTS tape during impulse impact; Zhang et al [35] and Liu et al [36] determined the DC overcurrent impact on the tapes at different temperatures and analyzed quench resistance; Sheng et al [37] and Maeda et al [38] studied the quench recovery of the tapes after overcurrent impact and observed the bubbles generated by heat transfer on the tape surface during the quench process; Xiang et al [39] studied the effect of magnetic field on the overcurrent impact of tapes; Rusi ński et al [40] and Jiang et al [41] studied the effect of tape insulation on overcurrent impact; Liang et al [42,43] modeled the quench resistance of the tape through the R-Q curve; LV et al [44] laminated the optical fiber on the side of the tape to measure the temperature during the overcurrent impact process.…”

Section: Introductionmentioning

confidence: 99%

Progress on Second-Generation High-Temperature Superconductor Tape Targeting Resistive Fault Current Limiter Application

Zhu

Chen²,

Jin

2022

Electronics

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The resistive superconducting fault current limiter is well known for its simple structure and outstanding current-limiting effect, and it is broadly applied in power grid systems. The second-generation high-temperature superconductor (HTS) tape, of higher structural strength and greater room-temperature resistance, is well suited for application in resistive superconducting fault current limiters. The quenching caused by overcurrent in the HTS tape is a complexed coupling effect of several physical factors. The tape structure and properties directly impact the ultimate HTS tape’s quench performance. In this study, various SS316-laminated HTS tapes, of different critical currents, room-temperature resistances, and masses, were prepared. The pulse impact parameters of the various tape samples were measured using the RLC high-current impact test platform. By analyzing the resultant data, a quantitative assessment methodology to measure a tape’s tolerance toward impact was developed. The dependence of the HTS tape’s tolerance toward impact on its critical current, room-temperature resistance, and mass was studied. This provides numerical guidance on HTS material selection for resistive superconducting fault current limiters.

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A novel simplified modeling method based on R–Q curve of resistive type SFCL in power systems

Cited by 11 publications

References 3 publications

R-Q curve based evaluation method for current-limiting performance of DC R-SFCL in high voltage DC system

R-Q curve based evaluation method for current-limiting performance of DC R-SFCL in high voltage DC system

Modelling of Resistive Type Superconducting Fault Current Limiter for HVDC Grids

Progress on Second-Generation High-Temperature Superconductor Tape Targeting Resistive Fault Current Limiter Application

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