摘要
Superconducting fault current limiters(SFCLs)are important in improving the stability of electrical power systems.However,the existing resistive-type DC SFCL has a long re-covery time,which cannot meet the requirements of power system auto-reclosure.Thus,it is necessary to investigate the methods of reducing recovery time of SFCLs.In the simulations on superconducting tapes,there is a lack of investigation about the effects of design factors of superconducting tapes and coils such as material,thickness,coil radius,coil winding method on recovery characteristics.The objective of this study is to obtain the effects of material and geometric properties of superconducting tapes and coils on recovery characteristics and obtain methods to reduce the recovery time.The recovery times under different conducting currents are also compared by simulations and exper-iments to verify simulation accuracy.The maximum error is below 40%and most of the cases have an error below 10%.Besides,by increasing tape thickness,the recovery time can be reduced by 22%.Tape materials and coil winding methods can be designed ac-cording to the auto-reclosure and current-limiting requirements of the power systems.The research provided directions for the design of superconducting tape and super-conducting coil for resistive-type DC SFCLs.
基金
China Postdoctoral Innovative Talent Support Program,Grant/Award Number:BX2021233
Fundamental Research Funds for the Central Universities,Grant/Award Number:xzy012020076
General Project of Key R&D Plan in Shaanxi Province-Industrial Field,Grant/Award Number:2021GY-119
National Natural Science Foundation of China,Grant/Award Numbers:51877166,51907153
Xi'an Association for Science and Technology Youth Talent Support Project,Grant/Award Number:095920211330
State Key Laboratory Of Alternate Electrical Power System With Renewable Energy Sources,Grant/Award Number:LAPS20008。
