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1.新能源电力系统国家重点实验室(华北电力大学),北京市 102206
2.强电磁工程与新技术国家重点实验室(华中科技大学),湖北省武汉市 430074
3.北京四方继保自动化股份有限公司,北京市 100085
4.中国南方电网电力调度控制中心,广东省广州市 510530
Received:14 November 2020,
Revised:2021-03-02,
Published Online:13 May 2021,
Published:10 July 2021
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贾科,侯来运,毕天姝等.基于故障区域局部迭代的工程实用化新能源短路电流计算[J].电力系统自动化,2021,45(13):151-158.
JIA Ke,HOU Laiyun,BI Tianshu,et al.Practical Engineering Calculation of Short-circuit Current for Renewable Energy Based on Local Iteration of Fault Area[J].Automation of Electric Power Systems,2021,45(13):151-158.
贾科,侯来运,毕天姝等.基于故障区域局部迭代的工程实用化新能源短路电流计算[J].电力系统自动化,2021,45(13):151-158. DOI: 10.7500/AEPS20201114003.
JIA Ke,HOU Laiyun,BI Tianshu,et al.Practical Engineering Calculation of Short-circuit Current for Renewable Energy Based on Local Iteration of Fault Area[J].Automation of Electric Power Systems,2021,45(13):151-158. DOI: 10.7500/AEPS20201114003.
新能源快速发展,正在由辅助电源向主力电源过渡。现有新能源工程短路电流计算存在两大问题。一是用1.2~2倍额定电流表征新能源故障特性,过度简化导致计算精度差,难以满足保护要求;二是现有短路电流整定计算软件不支持迭代,因而无法根据节点电压变化而更新新能源故障电流,体现其压控电流源特性。针对该问题,首先,基于新能源的故障特性精细化解析模型,结合现场故障录波数据,构建满足工程实用计算要求的电压电流映射关系;然后,根据电网故障后节点电压跌落程度和节点之间的连接关系划分故障区域,并在故障区域内依据新能源的工程实用化计算公式进行局部迭代计算来求解网络的节点电压和短路电流,从而避免了全局迭代可能带来的收敛性问题,同时也缩短了计算时间;最后,通过工程计算软件验证了所提方法的计算效果。
With the rapid development of renewable energy
it is transforming from auxiliary power supply to main power supply.There are two problems in the calculation of short-circuit current in the existing renewable energy projects. Firstly
the fault characteristics of renewable energy are characterized by 1.2 to 2 times of rated current
which leads to poor calculation accuracy and is difficult to meet the protection requirements. Secondly
the existing short-circuit current setting calculation software does not support iteration
so it is unable to update the fault current of renewable energy according to the change of node voltage
and reflects the characteristics of voltage controlled current source. To solve this problem
based on the refined analytical model of fault characteristics of renewable energy
combined with the field fault recording data
the voltage-current mapping relationship is constructed to meet the requirements of practical engineering calculation. Then
the fault area is divided according to the degree of node voltage drop and the connection relationship between nodes after the power grid fault
and the local iteration calculation is carried out according to the practical calculation formula of renewable energy in the fault area to solve the node voltage and short-circuit current of the network
so as to avoid the convergence problem caused by the global iteration and shorten the calculation time. Finally
the calculation effect of the proposed method is verified by engineering calculation software.
王晨清 , 宋国兵 , 刘凯 , 等 . 突变量保护对风电接入系统的适应性分析 [J]. 中国电机工程学报 , 2014 , 34 ( 31 ): 5485 - 5492 .
WANG Chenqing , SONG Guobing , LIU Kai , et al . Adaptability analysis of mutation protection to wind power integration system [J]. Proceedings of the CSEE , 2014 , 34 ( 31 ): 5485 - 5492 .
贾科 , 杨哲 , 魏超 , 等 . 基于斯皮尔曼等级相关系数的新能源送出线路纵联保护 [J]. 电力系统自动化 , 2020 , 44 ( 15 ): 103 - 111 .
JIA Ke , YANG Zhe , WEI Chao , et al . New energy transmission line pilot protection based on Spearman’s rank correlation coefficient [J]. Automation of Electric Power Systems , 2020 , 44 ( 15 ): 103 - 111 .
KROPOSKI B , PINK C , De BLASIO R , et al . Benefits of power electronic interfaces for distributed energy systems [J]. IEEE Transactions on Energy Conversion , 2010 , 25 ( 3 ): 901 - 908 .
周孝信 , 鲁宗相 , 刘应梅 , 等 . 中国未来电网的发展模式和关键技术 [J]. 中国电机工程学报 , 2014 , 34 ( 29 ): 4999 - 5008 .
ZHOU Xiaoxin , LU Zongxiang , LIU Yingmei , et al . Development mode and key technologies of China’s future power grid [J]. Proceedings of the CSEE , 2014 , 34 ( 29 ): 4999 - 5008 .
JIA J , YANG G , NIELSEN A H , et al . Impact of VSC control strategies and incorporation of synchronous condensers on distance protection under unbalanced faults [J]. IEEE Transactions on Industrial Electronics , 2019 , 66 ( 2 ): 1108 - 1118 .
宋国兵 , 陶然 , 李斌 , 等 . 含大规模电力电子装备的电力系统故障分析与保护综述 [J]. 电力系统自动化 , 2017 , 41 ( 12 ): 2 - 12 .
SONG Guobing , TAO Ran , LI Bin , et al . Overview of power system fault analysis and protection including large-scale power electronic equipment [J]. Automation of Electric Power Systems , 2017 , 41 ( 12 ): 2 - 12 .
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 Xiaohong , SUN Shiyun , SUN Dejuan , et al . Analysis of three-phase short circuit current characteristics of doubly fed fan [J]. Power System Protection and Control , 2019 , 47 ( 18 ): 38 - 48 .
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 . Fault current characteristics of doubly fed wind turbine considering crowbar protection [J]. Transactions of China Electrotechnical Society , 2015 , 30 ( 8 ): 1 - 10 .
杨国生 , 王增平 , 欧阳金鑫 , 等 . 考虑低电压穿越全过程的双馈风电机组短路电流计算方法 [J]. 电网技术 , 2018 , 42 ( 7 ): 2185 - 2193 .
YANG Guosheng , WANG Zengping , OUYANG Jinxin , et al . Short circuit current calculation method of doubly fed wind turbine considering the whole process of LVRT [J]. Power System Technology , 2018 , 42 ( 7 ): 2185 - 2193 .
KONG X , ZHANG Z , YIN X , 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 .
尹俊 , 毕天姝 , 薛安成 , 等 . 计及低电压穿越控制的双馈风力发电机组短路电流特性与故障分析方法研究 [J]. 电工技术学报 , 2015 , 30 ( 23 ): 116 - 125 .
YIN Jun , BI Tianshu , XUE Ancheng , et al . Research on short circuit current characteristics and fault analysis method of doubly fed wind turbine considering low voltage ride through control [J]. Transactions of China Electrotechnical Society , 2015 , 30 ( 23 ): 116 - 125 .
CHANG Y , HU J , YUAN X . Mechanism analysis of DFIG-based wind turbine’s fault current during LVRT with equivalent inductances [J]. IEEE Journal of Emerging and Selected Topics in Power Electronics , 2020 , 8 ( 2 ): 1515 - 1527 .
孔祥平 , 张哲 , 尹项根 , 等 . 含逆变型分布式电源的电网故障电流特性与故障分析方法研究 [J]. 中国电机工程学报 , 2013 , 33 ( 34 ): 65 - 74 .
KONG Xiangping , ZHANG Zhe , YIN Xianggen , et al . Research on fault current characteristics and fault analysis methods of power grids with inverter-type distributed power sources [J]. Proceedings of the CSEE , 2013 , 33 ( 34 ): 65 - 74 .
李斌 , 张慧颖 , 段志田 , 等 . 逆变型电源控制策略对其故障暂态的影响分析 [J]. 电力系统及其自动化学报 , 2014 , 26 ( 12 ): 1 - 7 .
LI Bin , ZHANG Huiying , DUAN Zhitian , et al . Analysis of the influence of inverter-type power supply control strategy on its fault transient state [J]. Proceedings of the CSU-EPSA , 2014 , 26 ( 12 ): 1 - 7 .
贾科 , 郑黎明 , 毕天姝 , 等 . 基于余弦相似度的风电场站送出线路纵联保护 [J]. 中国电机工程学报 , 2019 , 39 ( 21 ): 6263 - 6275 .
JIA Ke , ZHENG Liming , BI Tianshu , et al . Longitudinal protection for outgoing line of wind farm based on cosine similarity [J]. Proceedings of the CSEE , 2019 , 39 ( 21 ): 6263 - 6275 .
徐可寒 , 张哲 , 刘慧媛 , 等 . 光伏电源故障特性研究及影响因素分析 [J]. 电工技术学报 , 2020 , 35 ( 2 ): 359 - 371 .
XU Kehan , ZHANG Zhe , LIU Huiyuan , et al . Fault characteristics and influencing factors analysis of photovoltaic power supply [J]. Transactions of China Electrotechnical Society , 2020 , 35 ( 2 ): 359 - 371 .
杨杉 , 同向前 , 刘健 , 等 . 含分布式电源配电网的短路电流计算方法研究 [J]. 电网技术 , 2015 , 39 ( 7 ): 1977 - 1982 .
YANG Shan , TONG Xiangqian , LIU Jian , et al . Research on short-circuit current calculation method of distribution network with distributed power sources [J]. Power System Technology , 2015 , 39 ( 7 ): 1977 - 1982 .
匡晓云 , 方煜 , 关红兵 , 等 . 适用于含新能源逆变电源网络的全时域短路电流计算方法 [J]. 电力自动化设备 , 2020 , 40 ( 5 ): 113 - 122 .
KUANG Xiaoyun , FANG Yu , GUAN Hongbing , et al . Full-time domain short-circuit current calculation method suitable for new energy inverter power supply network [J]. Electric Power Automation Equipment , 2020 , 40 ( 5 ): 113 - 122 .
尹项根 , 张哲 , 肖繁 , 等 . 分布式电源短路计算模型及电网故障计算方法研究 [J]. 电力系统保护与控制 , 2015 , 43 ( 22 ): 1 - 9 .
YIN Xianggen , ZHANG Zhe , XIAO Fan , et al . Research on short circuit calculation model and grid fault calculation method of distributed generation [J]. Power System Protection and Control , 2015 , 43 ( 22 ): 1 - 9 .
NIMPITIWAN N , HEYDT G T , AYYANAR R , et al . Fault current contribution from synchronous machine and inverter based distributed generators [J]. IEEE Transactions on Power Delivery , 2007 , 22 ( 1 ): 634 - 641 .
李菁 , 郑涛 , 赵裕童 , 等 . 双馈风电短路电流特性对距离保护的影响分析 [J]. 电力系统保护与控制 , 2017 , 45 ( 6 ): 37 - 47 .
LI Jing , ZHENG Tao , ZHAO Yutong , et al . Influence of short-circuit current characteristics of doubly fed wind power on distance protection [J]. Power System Protection and Control , 2017 , 45 ( 6 ): 37 - 47 .
杜公言 , 曹炜 . 含逆变器电源的电力系统短路电流计算 [J]. 电气技术 , 2015 ( 9 ): 38 - 42 .
DU Gongyan , CAO Wei . Calculation of short circuit current in power system with inverter power supply [J]. Electrical Technology , 2015 ( 9 ): 38 - 42 .
孔祥平 , 袁宇波 , 黄浩声 , 等 . 光伏电源故障电流的暂态特征及其影响因素 [J]. 电网技术 , 2015 , 39 ( 9 ): 2444 - 2449 .
KONG Xiangping , YUAN Yubo , HUANG Haosheng , et al . Transient characteristics and influencing factors of fault current of photovoltaic power supply [J]. Power System Technology , 2015 , 39 ( 9 ): 2444 - 2449 .
刘慧媛 , 肖繁 , 张哲 , 等 . 新能源电源接入不平衡配电网的短路计算方法 [J]. 电力系统自动化 , 2019 , 43 ( 21 ): 177 - 186 .
LIU Huiyuan , XIAO Fan , ZHANG Zhe , et al . Short-circuit calculation method for new energy sources connected to unbalanced distribution network [J]. Automation of Electric Power Systems , 2019 , 43 ( 21 ): 177 - 186 .
李银红 , 段献忠 . 电力系统线路保护整定计算一体化系统 [J]. 电力系统自动化 , 2003 , 27 ( 9 ): 66 - 69 .
LI Yinhong , DUAN Xianzhong . Integrated system of line protection setting and calculation in power system [J]. Automation of Electric Power Systems , 2003 , 27 ( 9 ): 66 - 69 .
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