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CRAFT超导磁体电源换流变压器短路阻抗设计

黄荣林 傅鹏 黄连生 许留伟 高格 何诗英

黄荣林, 傅鹏, 黄连生, 等. CRAFT超导磁体电源换流变压器短路阻抗设计[J]. 强激光与粒子束, 2021, 33: 096001. doi: 10.11884/HPLPB202133.210088
引用本文: 黄荣林, 傅鹏, 黄连生, 等. CRAFT超导磁体电源换流变压器短路阻抗设计[J]. 强激光与粒子束, 2021, 33: 096001. doi: 10.11884/HPLPB202133.210088
Huang Ronglin, Fu Peng, Huang Liansheng, et al. Short-circuit impedance design for converter transformer of superconducting magnet power supply for CRAFT[J]. High Power Laser and Particle Beams, 2021, 33: 096001. doi: 10.11884/HPLPB202133.210088
Citation: Huang Ronglin, Fu Peng, Huang Liansheng, et al. Short-circuit impedance design for converter transformer of superconducting magnet power supply for CRAFT[J]. High Power Laser and Particle Beams, 2021, 33: 096001. doi: 10.11884/HPLPB202133.210088

CRAFT超导磁体电源换流变压器短路阻抗设计

doi: 10.11884/HPLPB202133.210088
基金项目: 聚变堆主机关键系统综合研究设施项目(2018-000052-73-01-001228)
详细信息
    作者简介:

    黄荣林,hronglin@163.com

    通讯作者:

    黄连生,huangls@ipp.ac.cn

  • 中图分类号: TL6

Short-circuit impedance design for converter transformer of superconducting magnet power supply for CRAFT

  • 摘要: 聚变堆主机关键系统综合研究设施(CRAFT)超导磁体电源兼具大电流稳态运行、高功率脉冲运行和瞬态故障抑制能力的需求。换流变压器的短路阻抗与超导磁体电源的特性密切相关。为了优化超导磁体电源的性能,基于交直流系统的参数和换流变压器的等效电路模型,研究了换流变压器短路阻抗与超导磁体电源的输出电压、谐波电流、短路故障电流和无功损耗的关系。短路阻抗越小,超导磁体电源的额定输出电压越高,无功损耗越小,这些特性对CRAFT超导磁体电源的性能有利,但是短路故障电流和谐波电流增加,影响电源的短路故障抑制能力和谐波特性。在CRAFT超导磁体电源换流变压器短路阻抗设计时,首先短路阻抗必须满足直流电源的额定输出电压和故障电流抑制能力,其次,由于CRAFT超导磁体电源是多相变流器,仅产生高次特征谐波电流,含量少便于抑制,因而尽量选择较小的短路阻抗。
  • 图  1  超导磁体电源系统图

    Figure  1.  Simplified diagram of power supply system

    图  2  三相桥变流器触发角α时阀侧交流电流波形

    Figure  2.  Phase current waveform of valve-side of converter transformer with the firing angle α

    图  3  三变流器同步相移计算等效电路

    Figure  3.  Equivalent circuit of synchronous phase shifting for converter

    图  4  变流系统相量关系图

    Figure  4.  Phasor diagram of converter system

    图  5  变流器最高输出电压Vdmax与短路阻抗uk的关系

    Figure  5.  Relation between maximum output voltage Vdmax and short circuit impedance uk of transform

    图  6  V5V1换相的等效电路

    Figure  6.  Equivalent circuit of transferring from V5 to V1

    图  7  三相桥变流器交流侧A相电流波形

    Figure  7.  A-phase current waveform of three phase bridge converter

    图  8  谐波电流百分比与变压器短路阻抗uk的关系曲线

    Figure  8.  Relation between harmonic current and short circuit impedance uk of transform

    图  9  变流器短路故障示意图

    Figure  9.  Short-circuit fault diagram of converter

    图  10  变流器电源消耗的无功功率QS和功率因数PFuk关系曲线

    Figure  10.  Relationship curve between QS, PF and uk

    表  1  超导磁体电源系统基本参数和性能指标

    Table  1.   Design parameters and performance of the power supply

    rated voltage/Vrated power/MWrated voltage/kVrated current/kAmaximum output pulse current/kApulse width/ms
    250300.25120400200
    下载: 导出CSV

    表  2  主要设备的电气参数

    Table  2.   Electrical parameters of main equipments

    parameterrated
    voltage/kV
    short-circuit
    capacity/MVA
    rated
    power/MW
    transformer
    ratio
    short-circuit
    impedance
    load loss/
    kW
    resistance/
    inductance/
    power grid1101270
    step-down transformer63110/3510.5%232
    power cable239.4110.6
    converter transformer835/0.19746
    AC busbar0.314
    下载: 导出CSV

    表  3  主要设备的等效阻抗

    Table  3.   Equivalent impedance of main equipments

    parametersequivalent reactance/μΩequivalent resistance/μΩ
    power grid30.63.1
    step-down transformer652.3
    power cable3.57.6
    converter transformer27.9
    AC busbar3140
    下载: 导出CSV
  • [1] 李存璞, 唐红安, 魏子栋. 2019年清洁能源开发热点回眸[J]. 科技导报, 2020, 38(1):125-136. (Li Cunpu, Tang Hongan, Wei Zidong. Clean energy in 2019—A research hotspots[J]. Technology Review, 2020, 38(1): 125-136
    [2] 杨军, 张恩昊, 郭志恒, 等. 全球核能科技前沿综述[J]. 科技导报, 2020, 38(20):35-49. (Yang Jun, Zhang Enhao, Guo Zhiheng, et al. Recent progress of frontier nuclear energy science and technology[J]. Technology Review, 2020, 38(20): 35-49
    [3] 李建刚. 托卡马克研究的现状及发展[J]. 物理, 2016, 45(2):88-97. (Li Jian’gang. The status and progress of tokamak research[J]. Physics, 2016, 45(2): 88-97 doi: 10.7693/wl20160203
    [4] 高翔, 万元熙, 丁宁, 等. 可控核聚变科学技术前沿问题和进展[J]. 中国工程科学, 2018, 20(3):26-31. (Gao Xiang, Wan Yuanxi, Ding Ning, et al. Frontier issues and progress of controlled nuclear fusion science and technology[J]. Strategic Study of CAE, 2018, 20(3): 26-31
    [5] 万宝年, 徐国胜. EAST全超导托卡马克高约束稳态运行实验研究进展[J]. 中国科学, 2019, 49:045205. (Wan Baonian, Xu Guosheng. Advances in experimental research towards high confinement and steady state operation on the experimental advanced superconducting Tokamak[J]. Science China Press, 2019, 49: 045205
    [6] 高翔, 万宝年, 宋云涛, 等. CFETR物理与工程研究进展[J]. 中国科学, 2019, 49:045202. (Gao Xiang, Wan Baonian, Song Yuntao. Progress on CFETR physics and engineering[J]. SCIENTIA SINICA Physica, Mechanica & Astronomica, 2019, 49: 045202
    [7] Wan Baonian, Ding Siye, Qian Jinping, et al. Physics design of CFETR: Determination of the device engineering parameters[J]. IEEE Trans Plasma Sci, 2014, 42(3): 495-502. doi: 10.1109/TPS.2013.2296939
    [8] http://www.craft.ipp.ac.cn/cn/xmjj/index_25.aspx.
    [9] 屈鲁, 李格, 李华. 脉冲电网用500 kV三绕组降压变压器短路阻抗的优化[J]. 高电压技术, 2014, 40(10):3211-3227. (Qu Lu, Li Ge, Li Hua. Short-circuit impedance optimization for 500 kV three-winding step-down transformer in pulsed power electric network[J]. High Voltage Engineering, 2014, 40(10): 3211-3227
    [10] 王峰, 徐政, 薛英林. 高压直流输电换流变压器参数确定方法[J]. 电力系统保护与控制, 2011, 39(22):98-102. (Wang Feng, Xu Zheng, Xue Yinglin. Calculation of converter transformer’s parameters for HVDC transmission[J]. Power System Protection and Control, 2011, 39(22): 98-102 doi: 10.7667/j.issn.1674-3415.2011.22.018
    [11] 张友富, 黄振鹏, 向孟奇, 等. 向家坝-上海±800 kV换流变压器短路阻抗确定方法的研究[J]. 华东电力, 2011, 39(12):2002-2006. (Zhang Youfu, Huang Zhenpeng, Xiang Mengqi, et al. Parameter selection for converter transformer short circuit impedance in Xiangjiaba-Shanghai ±800 kV UHVDC Project[J]. East China Electric Power, 2011, 39(12): 2002-2006
    [12] 郭贤珊, 付颖. ±1100 kV特高压直流工程换流变最优短路阻抗[J]. 电力系统保护与控制, 2018, 1(4):496-503. (Guo Xianshan, Fu Ying. Study on optimal short-circuit impedance of converter transformer for ±1100 k V UHVDC[J]. Power System Protection and Control, 2018, 1(4): 496-503
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出版历程
  • 收稿日期:  2021-03-17
  • 修回日期:  2021-07-24
  • 网络出版日期:  2021-08-19
  • 刊出日期:  2021-09-15

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