双馈型电源短路电流统一解析方法及特性分析研究

doi:10.19595/j.cnki.1000-6753.tces.170599

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摘要新能源电源故障电流特性研究是电网故障分析和保护原理研究的重要基础。双馈型电源由于结构特殊且暂态特性复杂,特别是在不对称故障条件下,与低电压穿越控制策略有关,且控制策略多样化,导致其故障电流特性理论分析较为薄弱。针对此,建立双馈型电源在电网不对称故障条件下的数学模型,考虑陷波器和RSC励磁调节特性的影响,建立转子电流内环控制系统简化的等效模型。在此基础上,推导PI控制器参数的解析表达式,分析控制系统相位裕度和穿越频率取值范围,建立双馈型电源转子电流的简化计算模型,最后形成适用于不同控制策略的双馈型电源短路电流统一解析表达式,为含新能源电源接入的电网故障分析方法和继电保护新原理的提出奠定了重要基础。利用PSCAD/EMTDC搭建仿真平台,证明了建立的双馈型电源短路电流统一解析表达式的正确性。

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	肖繁
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关键词 ：双馈风电机组, 动态响应, 短路电流特性, 不对称故障, 统一解析方法

Abstract：The analysis for the fault current characteristics of the new energy sources is the basis in relay protection and fault analysis of the power grid. For generators of doubly-fed type, due to its special structure and complicated transient characteristics, especially under asymmetric fault conditions, the fault current characteristics of doubly-fed induction generator (DFIG) are related to low-voltage through control strategy, and there are a lot of control strategies. In order to address this issue, the unified analysis method in the fault currents of a DFIG is studied. Firstly, the mathematical model of a DFIG under the asymmetric fault conditions is proposed. Then, the equivalent models of inner rotor current control loop are established by considering the dynamic response of a rotor-side converter (RSC) and the notch filters, and the simplified calculation models of rotor fault current are established. As a result, the unified fault current analytical expressions of a DFIG are obtained, which is applicable for different control strategies. Finally, simulation examples in PSCAD/EMTDC verify the theoretical analysis results.

Key words： Doubly-fed induction generator dynamic response fault current characteristics asymmetric fault conditions unified analysis method

收稿日期: 2017-05-10 出版日期: 2018-07-27

PACS:

TM744

基金资助:2018年国家电网总部指南项目,2016年湖北省电力公司项目和广东电网有限责任公司科技项目（QCSG210002-2016B4）资助

通讯作者: 肖繁 1989年生,男,博士,主要研究方向为大规模新能源接入电网的运行控制与继电保护技术。E-mail: xiao103fan@163.com

作者简介: 张哲 1962年生,男,博士,教授,主要研究方向为电力系统继电保护、新能源及超导技术。E-mail: zz-2002@163.com

引用本文:

肖繁, 张哲, 赖清华, 刘慧媛, 刘玮. 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): 3319-3331. Xiao Fan, Zhang Zhe, Lai Qinghua, Liu Huiyuan, Liu Wei. Study on Unified Analysis Method and Characteristics in Fault Currents of Doubly-Fed Induction Generators. Transactions of China Electrotechnical Society, 2018, 33(14): 3319-3331.

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[1] Baran M E, El-Markaby I.Fault analysis on distri- bution feeders with distributed generators[J]. IEEE Transactions on Power Systems, 2005, 20(4): 1757-1764.
[2] Plet C A, Graovac M, Green T C, et al.Fault response of grid-connected inverter dominated networks[C]// 2010 Power and Energy Society General Meeting, Providence, RI, USA, 2010, DOI: 10.1109/PES.2010. 5589981.
[3] 韩奕, 张东霞. 含逆变型分布式电源的微网故障特征分析[J]. 电网技术, 2011, 35(10): 147-152.
Han Yi, Zhang Dongxia.Fault analysis of microgrid composed by inverter-based distributed generations[J]. Power System Technology, 2011, 35(10): 147-152.
[4] Kong Xiangping, Zhang Zhe, Yin Xianggen, et al.Fault current study of inverter interfaced distributed generators[J]. The Distributed Generation and Alternative Energy Journal, 2015, 30(3): 6-26.
[5] Kong Xiangping, Zhang Zhe, Yin Xianggen, et al.Study of fault current characteristics of the DFIG considering dynamic response of the RSC[J]. IEEE Transactions on Energy Conversion, 2014, 29(2): 278-287.
[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 Xiangping, Zhang Zhe, Yin Xianggen, et al.Study on the fault current characteristics of DFIG with consideration of the impact of crowbar protection[J]. Transactions of China Electrotechnical Society, 2015, 30(8): 1-10.
[7] 薛安成, 刘瑞煌, 耿继瑜, 等. 双馈风力发电机暂态自由响应近似解析解及其时间尺度分析[J]. 电工技术学报, 2017, 32(14): 214-223.
Xue Ancheng, Liu Ruihuang, Geng Jiyu, et al.Approximate analytical solution of transient free response of DFIG and its time scale analysis[J]. Transactions of China Electrotechnical Society, 2017, 32(14): 214-223.
[8] Ouyang Jinxin, Xiong Xiaofu.Dynamic behavior of the excitation circuit of a doubly-fed induction generator under a symmetrical voltage drop[J]. Renewable Energy, 2014, 71(11): 629-638.
[9] 刘素梅, 毕天姝, 薛安成, 等. 具有不对称故障穿越能力的双馈风力发电机组短路电流分析与计算[J]. 电工技术学报, 2016, 31(19): 182-190.
Liu Sumei, Bi Tianshu, Xue Ancheng, et al.Analysis and calculation for short-circuit current characteri- stics for doubly-fed induction generators with asymmetrical fault-ride-through capability[J]. Transa- ctions of China Electrotechnical Society, 2016, 31(19): 182-190.
[10] Hu J, He Y.Modeling and enhanced control of DFIG under unbalanced grid voltage conditions[J]. Electric Power Systems Research, 2009, 79(2): 273-281.
[11] 肖繁, 张哲, 尹项根, 等. 含双馈风力发电机组的电力系统故障计算方法研究[J]. 电工技术学报, 2016, 31(1): 14-23.
Xiao Fan, Zhang Zhe, Yin Xianggen, et al.The fault calculation method of power systems including doubly-fed induction generation[J]. Transactions of China Electrotechnical Society, 2016, 31(1): 14-23.
[12] 周波, 宋亦鹏, 年珩, 等. 负序及谐波畸变电网电压下双馈风力发电系统的改进直接功率控制策略[J]. 电工技术学报, 2017, 32(24): 233-243.
Zhou Bo, Song Yipeng, Nian Heng, et al.Improved direct power control strategy of DFIG System under unbalanced and distorted grid voltage[J]. Transa- ctions of China Electrotechnical Society, 2017, 32(24): 233-243.
[13] Chen S Z, Cheung N C, Wong K C, et al.Integral sliding-mode direct torque control of doubly-fed induction generators under unbalanced grid voltage[J]. IEEE Transactions on Energy Conversion, 2010, 25(2): 356-368.
[14] 贺益康, 胡家兵. 并网双馈异步风力发电机运行控制[M]. 北京: 中国电力出版社, 2011.
[15] Nian H, Song Y, Zhou P, et al.Improved direct power control of a wind turbine driven doubly fed induction generator during transient grid voltage unbalance[J]. IEEE Transactions on Energy Conversation, 2011, 26(3): 976-986.
[16] Yazdani D, Bakhshai A, Joos G.A real-time sequence components decomposition for transient analysis in grid-connected distributed generation systems[C]//Proceedings of the IEEE International Symposium on Industrial Electronics (ISIE), Cambridge, UK, 2008: 1651-1656.
[17] Song Hong-Seok.Dual current control scheme for PWM converter under unbalanced input voltage conditions[J]. IEEE Transactions on Industrial Electronics, 2011, 65(4): 953-959.
[18] Leonhard W.Control of electrical drives[M]. Berlin, Germany: Springer-Verlag, 1995.
[19] 张崇巍, 张兴. PWM整流器及其控制[M]. 北京: 机械工业出版社, 2003.
[20] 王莉娜, 朱鸿悦, 杨宗军. 永磁同步电动机调速系统PI控制器参数整定方法[J]. 电工技术学报, 2014, 29(5): 104-117.
Wang Lina, Zhu Hongyue, Yang Zongjun.Tuning method for PI controllers of PMSM driving system[J]. Transactions of China Electrotechnical Society, 2014, 29(5): 104-117.
[21] Lopez J, Gubia E, Olea E, et al.Ride through of wind turbines with doubly fed induction generator under symmetrical voltage dips[J]. IEEE Transactions on Industrial Electronics, 2009, 56(10): 4246-4254.