ANALYSIS OF FAULT CHARACTERISTICS OF DOUBLE FED INDUCTION GENERATOR CONSIDERING MULTI-STAGE CROWBAR SWITCHING AND REACTIVE POWER COMPENSATION STRATEGY

Zhang Pihao; Shu Hongchun; Sun Shiyun; Jiang Chaoshun; Li Boyu; Ai Bi

doi:10.19912/j.0254-0096.tynxb.2025-0015

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (6) : 239-251. DOI: 10.19912/j.0254-0096.tynxb.2025-0015

ANALYSIS OF FAULT CHARACTERISTICS OF DOUBLE FED INDUCTION GENERATOR CONSIDERING MULTI-STAGE CROWBAR SWITCHING AND REACTIVE POWER COMPENSATION STRATEGY

Zhang Pihao, Shu Hongchun, Sun Shiyun, Jiang Chaoshun, Li Boyu, Ai Bi

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Abstract

In view of the problems that traditional crowbar protection is difficult to simultaneously suppress rotor current and DC bus voltage as well as absorb reactive power during low-voltage ride-through. This paper proposes a control strategy of multi-stage crowbar switching and reactive power compensation. During the fault period, the crowbar resistance is adjusted in real time by grading the crowbar, so as to achieve the purpose of suppressing the rotor overcurrent and DC bus overvoltage. At the same time as the multi-stage crowbar is put into operation, the GSC adopts the reactive power compensation strategy, so that the fan can provide certain reactive power support to the power grid. On this basis, the change of rotor flux linkage after the crowbars at all levels are put into operation is analyzed, analytical expressions for the stator and rotor short-circuit currents upon the activation of each crowbar stage are derived, and the resistance value for each stage is subsequently set. Then, the short-circuit current of GSC is analyzed according to the reactive power compensation strategy, and then the influence of multi-stage crowbar protection access and GSC additional reactive power compensation strategy on DFIG reactive power characteristics is further analyzed. Finally, the effectiveness of the proposed control strategy and the correctness of the short-circuit current expression are verified by simulation.

Key words

wind power / double fed induction generator / short circuit current / low voltage ride through / multi-stage crowbar / reactive power compensation

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Zhang Pihao, Shu Hongchun, Sun Shiyun, Jiang Chaoshun, Li Boyu, Ai Bi. ANALYSIS OF FAULT CHARACTERISTICS OF DOUBLE FED INDUCTION GENERATOR CONSIDERING MULTI-STAGE CROWBAR SWITCHING AND REACTIVE POWER COMPENSATION STRATEGY[J]. Acta Energiae Solaris Sinica. 2026, 47(6): 239-251 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0015

References

[1] 郭剑波, 王铁柱, 罗魁, 等. 新型电力系统面临的挑战及应对思考[J]. 新型电力系统, 2023, 1(1): 32-43.
GUO J B, WANG T Z, LUO K, et al.Development of new power systems: challenges and solutions[J]. New type power systems, 2023, 1(1): 32-43.
[2] 文云峰, 杨伟峰, 汪荣华, 等. 构建100%可再生能源电力系统述评与展望[J]. 中国电机工程学报, 2020, 40(6): 1843-1855.
WEN Y F, YANG W F, WANG R H, et al.Review and prospect of toward 100% renewable energy power systems[J]. Proceedings of the CSEE, 2020, 40(6): 1843-1855.
[3] 蒋昊, 许立雄, 崔晓丹, 等. 基于保护电路运行状态增强识别的双馈风电场等值建模[J]. 电力系统保护与控制, 2024, 52(22): 129-142.
JIANG H, XU L X, CUI X D, et al.Equivalent modeling of a DFIG farm based on enhanced recognition of protection circuit operating state[J]. Power system protection and control, 2024, 52(22): 129-142.
[4] 潘文霞, 杨刚, 刘明洋, 等. 考虑Crowbar电阻的双馈电机短路电流计算[J]. 中国电机工程学报, 2016, 36(13): 3629-3634.
PAN W X, YANG G, LIU M Y, et al.Calculation of short-circuit current of DFIG with the considering of crowbar resistance[J]. Proceedings of the CSEE, 2016, 36(13): 3629-3634.
[5] 范小红, 安德超, 孙士云, 等. 计及撬棒保护动作时间的双馈风机三相短路电流特性分析[J]. 电工技术学报, 2019, 34(16): 3444-3452.
FAN X H, AN D C, SUN S Y, et al.Three-phase short circuit current characteristic analysis of doubly fed induction generator considering crowbar protection action time[J]. Transactions of China Electrotechnical Society, 2019, 34(16): 3444-3452.
[6] 孔祥平, 张哲, 尹项根, 等. 计及撬棒保护影响的双馈风力发电机组故障电流特性研究[J]. 电工技术学报, 2015, 30(8): 1-10.
KONG X P, ZHANG Z, YIN X G, et al.Study of fault current characteristics of DFIG considering impact of crowbar protection[J]. Transactions of China Electrotechnical Society, 2015, 30(8): 1-10.
[7] 王增平, 李菁, 郑涛, 等. 不同撬棒保护投入时刻下双馈风电机组短路电流计算分析[J]. 电力系统保护与控制, 2017, 45(5): 109-117.
WANG Z P, LI J, ZHENG T, et al.Calculation and analysis of three-phase short-circuit current of doubly fed wind turbine considering different crowbar protection insertion time[J]. Power system protection and control, 2017, 45(5): 109-117.
[8] 范小红, 孙士云, 孙德娟, 等. 双馈风机三相短路电流特性分析[J]. 电力系统保护与控制, 2019, 47(18): 38-48.
FAN X H, SUN S Y, SUN D J, et al.Analysis of three-phase short-circuit current characteristics of doubly fed induction generator[J]. Power system protection and control, 2019, 47(18): 38-48.
[9] 何超, 谭亲跃, 杨柳. 自适应撬棒技术对双馈风电机组的影响研究[J]. 太阳能学报, 2020, 41(9): 347-352.
HE C, TAN Q Y, YANG L.Research on influence of adaptive crowbar protection technology on doubly fed induction generator[J]. Acta energiae solaris sinica, 2020, 41(9): 347-352.
[10] 高淑萍, 蔚坤, 宋国兵. 基于双馈风电场的三相短路电流计算及保护方法[J]. 电力系统保护与控制, 2023, 51(7): 32-39.
GAO S P, YU K, SONG G B.Calculation and protection method for a three-phase short circuit fault current based on a doubly-fed wind field[J]. Power system protection and control, 2023, 51(7): 32-39.
[11] 谭爱国, 吴颖颖, 王传启, 等. 基于保障低压穿越能力的风电机组撬棒自适应投切策略研究[J]. 电力系统保护与控制, 2021, 49(18): 98-109.
TAN A G, WU Y Y, WANG C Q, et al.Adaptive switching strategy for a wind turbine crowbar based on the guarantee of low voltage ride-through capability[J]. Power system protection and control, 2021, 49(18): 98-109.
[12] 吴志鹏, 曹铭凯, 李银红. 计及Crowbar状态改进识别的双馈风电场等值建模方法[J]. 中国电机工程学报, 2022, 42(2): 603-613.
WU Z P, CAO M K, LI Y H.An equivalent modeling method of DFIG-based wind farm considering improved identification of crowbar status[J]. Proceedings of the CSEE, 2022, 42(2): 603-613.
[13] 杨兴雄, 束洪春, 单节杉, 等. 计及阻容式撬棒动作时间的双馈风机短路电流分析[J]. 电工技术学报, 2021, 36(22): 4716-4725.
YANG X X, SHU H C, SHAN J S, et al.Short circuit current analysis of DFIG considering resistance-capacitance type crowbar protection action time[J]. Transactions of China Electrotechnical Society, 2021, 36(22): 4716-4725.
[14] 冯海洋, 束洪春, 杨兴雄, 等. 计及阻容式撬棒的混合型风电场协同控制及故障特性分析[J]. 电力系统保护与控制, 2024, 52(8): 111-122.
FENG H Y, SHU H C, YANG X X, et al.Synergetic control and fault characteristics analysis of hybrid wind farm considering resistance-capacitance crowbar[J]. Power system protection and control, 2024, 52(8): 111-122.
[15] 孙丽玲, 王艳娟. 基于Crowbar串联电容的双馈风机低电压穿越综合控制策略[J]. 电网技术, 2018, 42(7): 2089-2094.
SUN L L, WANG Y J.LV ride through control strategy of doubly fed induction generator based on crowbar series capacitor[J]. Power system technology, 2018, 42(7): 2089-2094.
[16] 李生民, 贾铎, 肖亚敏. 采用新型动态撬棒的DFIG低高电压连锁故障穿越技术研究[J]. 电力系统保护与控制, 2018, 46(14): 79-86.
LI S M, JIA D, XIAO Y M.Low-high voltage chain fault ride-through technology of DFIG with active crowbar[J]. Power system protection and control, 2018, 46(14): 79-86.
[17] 邹志策, 雷一, 欧然, 等. 改善双馈感应发电机无功特性的变阻值撬棒保护方案[J]. 电力系统保护与控制, 2018, 46(22): 87-94.
ZOU Z C, LEI Y, OU R, et al.Crowbar protection scheme based on dynamic resistance for reactive power improvement of doubly fed induction generator[J]. Power system protection and control, 2018, 46(22): 87-94.
[18] 张曼, 姜惠兰. 基于撬棒并联动态电阻的自适应双馈风力发电机低电压穿越[J]. 电工技术学报, 2014, 29(2): 271-278.
ZHANG M, JIANG H L.Adaptive low voltage ride-through of doubly-fed induction generators based on crowbar with a parallel dynamic resistor[J]. Transactions of China Electrotechnical Society, 2014, 29(2): 271-278.
[19] 姜惠兰, 范中林, 陈娟. 动态调整转子撬棒阻值的双馈风电机组低电压穿越方法[J]. 电力系统自动化, 2018, 42(1): 125-131.
JIANG H L, FAN Z L, CHEN J.Low voltage ride-through method of DFIG based wind turbines by dynamically adjusting crowbar resistance of rotor[J]. Automation of electric power systems, 2018, 42(1): 125-131.
[20] GB/T 19963.1—2021, 风电场接入电力系统技术规定第1部分:陆上风电[S].
GB/T 19963.1—2021, Technical specification for connecting wind farm to power system-part 1: on shore wind power[S].
[21] 毕溱, 刘毅力, 尚小东, 等. 一种改进撬棒电路保护法在风电场LVRT中的应用[J]. 智慧电力, 2020, 48(11): 22-28.
BI Q, LIU Y L, SHANG X D, et al.Application of improved crowbar circuit protection method to LVRT of wind farm[J]. Smart power, 2020, 48(11): 22-28.
[22] 靳现林, 蔡晓宇, 刘其辉, 等. 一种考虑RSC和GSC的双馈风机短路电流实用计算方法[J]. 电力系统保护与控制, 2019, 47(24): 23-30.
JIN X L, CAI X Y, LIU Q H, et al.A practical calculation method for short-circuit current of DFIG considering RSC and GSC[J]. Power system protection and control, 2019, 47(24): 23-30.
[23] 徐殿国, 王伟, 陈宁. 基于撬棒保护的双馈电机风电场低电压穿越动态特性分析[J]. 中国电机工程学报, 2010, 30(22): 29-36.
XU D G, WANG W, CHEN N.Dynamic characteristic analysis of doubly-fed induction generator low voltage ride-through based on crowbar protection[J]. Proceedings of the CSEE, 2010, 30(22): 29-36.