磁控串联补偿型故障限流器参数设计与性能研究
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摘要
通过改变磁控限流器的直流偏置电流可以改变限流器输出电抗,与串联电容配合可在限流的基础上具备串联补偿功能。本文提出了一种磁控串联补偿限流器(MSCFCL),通过等效磁路等理论分析方法对其铁心与线圈的主要参数进行了详细设计;并提出了铁心开气隙结构来满足对输出电抗调节的需求。通过JMAG软件仿真分析了MSCFCL稳态下电抗输出与故障态下限流性能。仿真结果表明,以饱和电抗器为核心加入合理气隙结构的MSCFCL,可满足串联补偿的输出电抗平滑度要求,并且对限流性能有明显影响。
By changing the DC bias current of the magnetron current limiter,the output reactance of the current limiter can be changed. In conjunction with the series capacitance,series compensation can be provided on the basis of the current limit. In this paper,a magnetically controlled series compensation fault current limiting( MSCFCL) is proposed. The main parameters of the core and the coil are designed in detail through theoretical analysis methods such as equivalent magnetic circuit. A core open air gap structure is proposed to meet the demand for output reactance regulation. The JMAG software simulates and analyzes the reactance output of the MSCFCL under steady-state conditions and the lower-limit performance of the fault state. The simulation results show that adding a reasonable air-gap structure of MSCFCL with a saturable reactor as the core can satisfy the output reactive smoothness requirements of the series compensation and at the same time have a significant impact on the current limiting performance.
By changing the DC bias current of the magnetron current limiter,the output reactance of the current limiter can be changed. In conjunction with the series capacitance,series compensation can be provided on the basis of the current limit. In this paper,a magnetically controlled series compensation fault current limiting( MSCFCL) is proposed. The main parameters of the core and the coil are designed in detail through theoretical analysis methods such as equivalent magnetic circuit. A core open air gap structure is proposed to meet the demand for output reactance regulation. The JMAG software simulates and analyzes the reactance output of the MSCFCL under steady-state conditions and the lower-limit performance of the fault state. The simulation results show that adding a reasonable air-gap structure of MSCFCL with a saturable reactor as the core can satisfy the output reactive smoothness requirements of the series compensation and at the same time have a significant impact on the current limiting performance.
引文
[1]邱清泉,肖立业,张志丰,等(Qiu Qingquan,Xiao Liye,Zhang Zhifeng,et al.).高压及超高压故障电流限制技术分析(Analysis of fault current limiting technology used in high voltage and ultrahigh voltage power grid)[J].电工电能新技术(Advanced Technology of Electrical Engineering&Energy),2017,36(10):46-54.
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[13]姚磊,梅军,王佳成,等(Yao Lei,Mei Jun,Wang Jiacheng,et al.).基于新型铁心控制的配电系统串联补偿故障限流装置的仿真分析(Simulation study of a new core controlled series compensating and fault current limiting device for distribution system)[J].电网技术(Power System Technology),2013,37(9):2507-2514.
[14]肖茂友,李庆民,娄杰,等(Xiao Maoyou,Li Qingmin,Lou Jie,et al.).两种经济型故障限流器的工作特性比较(Comparative analysis on the operating performance of two economical type fault current limiters)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2005,17(4):71-75.
[15]Jia Y,Yuan J,Shi Z,et al.Simulation method for current-limiting effect of saturated-core superconducting fault current limiter[J].IEEE Transactions on Applied Superconductivity,2016,26(4):5601404.
[16]Zhang J Y,Wei Z Q,Hong H,et al.Electromagnetic design of saturated iron core SFCL[A].International Conference on Applied Superconductivity and Electromagnetic Devices[C].2012.305-308.
[2]信赢,田波,魏子镪(Xin Ying,Tian Bo,Wei Ziqiang,et al.).超导限流器基本概念和发展趋势(Fundamentals and prospective of superconducting fault current limiters)[J].电工电能新技术(Advanced Technology of Electrical Engineering&Energy),2017,36(10):1-7.
[3]金涛,徐颖,周世平,等(Jin Tao,Xu Ying,Zhou Shiping,et al.).饱和铁芯型超导限流器研究进展综述(Summarization of R&D on DC biased iron core type superconductive fault current limiter)[J].低温与超导(Cryogenics&Superconductivity),2013,41(1):13-18.
[4]张彦涛,秦晓辉,项祖涛,等(Zhang Yantao,Qin Xiaohui,Xiang Zutao,et al.).饱和铁心型高温超导故障限流器仿真建模及短路特征研究(Modeling of saturated iron-core high temperature superconductive fault current limiter and research on its short-circuit characteristic)[J].电网技术(Power System Technology),2014,38(6):1562-1568.
[5]王付胜,刘小宁(Wang Fusheng,Liu Xiaoning).饱和铁心型高温超导故障限流器数学模型的分析与参数设计(Model analysis of a high temperature superconducting fault current limiter and its parameter designment)[J].中国电机工程学报(Proceedings of the CSEE),2003,23(8):135-139.
[6]Wei L,Chen B,Yuan J,et al.Performance and optimization study of a novel compact permanent-magnet-biased fault current limiter[J].IEEE Transactions on Magnetics,2017,53(11):8401404.
[7]Nakamura K,Ichinokura O,Maeda M,et al.Analysis of orthogonal-core type linear variable inductor and application to VAr compensator[J].IEEE Transactions on Magnetics,2002,36(5):3565-3567.
[8]Nakamura K,Hisada S,Arimatsu K,et al.Development of a novel three-phase laminated-core variable inductor for var compensation[J].IEEE Transactions on Magnetics,2008,44(11):4107-4110.
[9]张志丰,肖立业,邱清泉,等(Zhang Zhifeng,Xiao Liye,Qiu Qingquan,et al.).一种改进串联谐振型限流器(An improved series-resonant type fault current limiter)[J].电工技术学报(Transactions of China Electrotechnical Society),2015,30(6):169-177.
[10]贾贵玺,李洪凤,贺家李(Jia Guixi,Li Hongfeng,He Jiali).具有可控串补功能的短路限流器的研究(Research on a fault current limiter with TCSC)[J].电工技术学报(Transactions of China Electrotechnical Society),2005,20(11):20-25.
[11]Gunawardana S M,Commins P A,Moscrop J W,et al.Applicability of nonlinear reluctance model to a closed core Fault Current Limiter[A].2015 IEEE Eindhoven Power Tech[C].2015.1-6.
[12]何砚发(He Yanfa).饱和铁心电抗器型高温超导故障电流限制器研究(Research on sinusoidal reactor type high-temperature superconducting fault current limiter)[A].材料科学与工程新进展-中国材料研讨会论文集(New Progress in Materials Science and Engineering-Proceedings of C-MRS)[C].2000.
[13]姚磊,梅军,王佳成,等(Yao Lei,Mei Jun,Wang Jiacheng,et al.).基于新型铁心控制的配电系统串联补偿故障限流装置的仿真分析(Simulation study of a new core controlled series compensating and fault current limiting device for distribution system)[J].电网技术(Power System Technology),2013,37(9):2507-2514.
[14]肖茂友,李庆民,娄杰,等(Xiao Maoyou,Li Qingmin,Lou Jie,et al.).两种经济型故障限流器的工作特性比较(Comparative analysis on the operating performance of two economical type fault current limiters)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2005,17(4):71-75.
[15]Jia Y,Yuan J,Shi Z,et al.Simulation method for current-limiting effect of saturated-core superconducting fault current limiter[J].IEEE Transactions on Applied Superconductivity,2016,26(4):5601404.
[16]Zhang J Y,Wei Z Q,Hong H,et al.Electromagnetic design of saturated iron core SFCL[A].International Conference on Applied Superconductivity and Electromagnetic Devices[C].2012.305-308.