Abstract：Firstly, from the perspective of mechanism and flux linkage, the short-circuit current characteristics of the doubly-fed induction generator (DFIG) when the voltage drops are analyzed. On this basis, the influence of the resistance-capacitance crowbar circuit with resistors and capacitors in series on the short-circuit current is studied, and the action time of the crowbar is comprehensively considered, the fault process is divided into two stages, and the rotor transient flux linkage is used as the connection stage .The analytic formula of the stator and rotor short-circuit current considering the action time of the resistance-capacitance crowbar is derived, combined with the analytic formula, and the capacitance value expression is derived from the perspective of eliminating the transient DC component of the rotor short-circuit current. Finally, a dynamic model of 1.5MW DFIG is built on Matlab/Simulink platform to verify the correctness of short-circuit current analytical formula and the effectiveness of resistance-capacitance crowbar in suppressing rotor surge current, improving reactive power absorption and filtering DC component of rotor side fault current.
通讯作者:
单节杉 男,1979年生,讲师,研究方向为新型继电保护等。E-mail：422416503@qq. com
作者简介: 杨兴雄 男,1995年生,硕士研究生,研究方向为风力发电及其对电力系统保护的影响。E-mail：1378808105@qq. com
引用本文:
杨兴雄, 束洪春, 单节杉, 孙士云, 王春又. 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 Xingxiong, Shu Hongchun, Shan Jieshan, Sun Shiyun, Wang Chunyou. Short Circuit Current Analysis of DFIG Considering Resistance-Capacitance Type Crowbar Protection Action Time. Transactions of China Electrotechnical Society, 2021, 36(22): 4716-4725.
[1] 王涛, 诸自强, 年珩, 等. 非理想电网下双馈风力发电系统运行技术综述[J]. 电工技术学报, 2020, 35(3): 456-471. Wang Tao, Zhu Ziqiang, Nian Heng, et al.Review on peration technology of doubly-fed induction generator system under non-ideal power gride[J]. Transactions of China Electrotechnical Society, 2020, 35(3): 456-471. [2] 范小红, 安德超, 孙士云, 等. 计及撬棒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): 3444-3451. Fan Xiaohong, An Dechao, Sun Shiyun, et al.Analysis of three-phase short-circuit current characteristic of the DFIG considing crowbar operating time[J]. Transactions of China Electrotechnical Society, 2019, 34(16): 3444-3451. [3] 孙德娟, 孙士云, 范小红, 等. 基于励磁电感计算的双馈风电场送出变差动保护[J]. 电工技术学报, 2020, 35(2): 395-407. Sun Dejuan, Sun Shiyun, Fan Xiaohong, et al.Variable differential protection for DFIG farm based on excitation inductance calculation[J]. Transactions of China Electrotechnical Society, 2020, 35(2): 395-407. [4] 肖繁, 张哲, 赖清华, 等. 双馈型电源短路电流统一解析方法及特性分析研究[J]. 电工技术学报, 2018, 33(14): 3320-3331. Xiao Fan, Zhang Zhe, Lai Qinghua, et al.Unified analytical methodand characteristic analysis of short circuit current of doubly-fed power supply[J]. Transactions of China Electrotechnical Society, 2015, 33(14): 3320-3331. [5] 马少康, 耿华, 马进, 等. 双馈型风电场的详细模型建模方法[J]. 电工技术学报, 2017, 32(1): 1-10. Ma Shaokang, Geng Hua, Ma Jin, et al.An detailed modeling method for doubly-fed wind farm[J]. Transactions of China Electrotechnical Society, 2017, 32(1): 1-10. [6] 王增平, 李菁, 郑涛, 等. 考虑变流器限流与GSC电流的双馈风力发电机暂态全电流计算与分析[J]. 电工技术学报, 2018, 33(17): 4124-4135. Wang Zengping, Li Jing, Zheng Tao, et al.Calculation and analysis of transient total current of doubly-fed induction generator by considering converter current limit and GSC current[J]. Transactions of China Electrotechnical Society, 2018, 33(17): 4124-4135. [7] 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 Xiangping, Zhang Zhe, Yin Xianggen, et al.Study on the fault current characteristics of doubly-fed wind turbine with the influence of crowbar protection[J]. Transactions of China Electrotechnical Society, 2015, 30(8): 1-10. [8] 陈雯. 风电场系统暂态控制研究[D]. 哈尔滨: 哈尔滨工业大学, 2013. [9] 魏占朋. 并网双馈感应风力发电机组暂态特性及其影响因素研究[D]. 北京: 华北电力大学, 2014. [10] 李箐. 电网故障下双馈风电机组暂态特性研究[D]. 北京: 华北电力大学, 2013. [11] 熊小伏, 欧阳金鑫. 电网短路时双馈感应发电机转子电流分析计算[J]. 中国电机工程学报, 2012, 32(28): 114-122. Xiong Xiaofu, Ouyang Jinxin.Analysis circuit design and calculation of rotor current of DFIG short circuit circuit of power network[J]. Proceedings of the CSEE, 2012, 32(28): 114-122. [12] 彭国敬, 吴峰. 一种新型的风电场低电压穿越时撬棒电路设计与阻值选定[J]. 水电能源科学, 2013, 31(5): 239-243. Peng Guojing, Wu Feng.Circuit design and resistance selection of a new type of crowbar circuit for low voltage crossing in a wind farm[J]. Hydro-Electric Energy Science, 2013, 31(5): 239-243. [13] 孙丽玲, 王丽娟. 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): 2090-2096. Sun Liling, Wang Lijuan.Comprehensive control strategy for low voltage crossing of doubly-fed induction generator based on resistance crowbar series capacitors[J]. Power System Technology, 2016, 42(7): 2090-2096. [14] 郑重, 杨耕, 耿华. 电网故障下基于基于撬棒保护的双馈风电机组短路电流分析[J]. 电力自动化设备, 2012, 32(11): 7-15. Zheng Zhong, Yang Geng, Geng Hua.Short-circuit current analysis of doubly-fed wind turbine based on crowbar protection under grid faults[J]. Electric Power Automation Equipment, 2012, 32(11): 7-15. [15] 金晶. 双馈风电机组转子侧变流器对短路特性的影响研究[D]. 重庆: 重庆大学, 2012. [16] 吴国祥, 刘鸿泉, 吴国庆, 等. 双馈感应电机在三相对称故障下的电流分析[J]. 电机与控制应用, 2015, 42(9): 39-72. Wu Guoxiang, Liu Hongquan, Wu Guoqing, et al.Short circuit current analysis of DFIG under three phase symmetrical fault[J]. Electric Machines & Control Applications, 2015, 42(9): 39-72. [17] 郑涛, 魏占朋, 迟永宁. 考虑撬棒动作时间的双馈式风电机组短路电流特性[J]. 电力系统自动化, 2014, 38(5): 25-30. Zheng tao, Wei Zhanpeng, Chi Yongning. Short circuit current characteristics of doubly-fed wind turbine considering crowbar action time[J]. Power System Automation, 2014, 38(5): 25-30. [18] 成和祥. 基于双馈风机短路特性的风电场集电线路继电保护整定方法研究[J]. 电力系统保护与控制, 2020, 48(16): 93-99. Cheng Hexiang.Research on relay protection setting method of collecting line in wind power plant based on short-circuit characteristic of doubly-fed induction generator[J]. Power System Protection and Control, 2020, 48(16): 93-99.
2021, Vol. 36 
