

浏览全部资源
扫码关注微信
1.国家电能变换与控制工程技术研究中心(湖南大学),湖南省长沙市 410082
2.深圳供电局有限公司,广东省深圳市 518000
Received:17 April 2024,
Revised:2024-09-11,
Published Online:28 October 2024,
Published:25 February 2025
移动端阅览
彭子豪,肖凡,涂春鸣等.考虑源侧电压跌落与故障重合闸的下垂逆变器优化控制策略[J].电力系统自动化,2025,49(4):203-213.
PENG Zihao,XIAO Fan,TU Chunming,et al.Optimal Control Strategy for Droop-controlled Inverter Considering Source-side Voltage Drop and Fault Reclosing[J].Automation of Electric Power Systems,2025,49(4):203-213.
彭子豪,肖凡,涂春鸣等.考虑源侧电压跌落与故障重合闸的下垂逆变器优化控制策略[J].电力系统自动化,2025,49(4):203-213. DOI: 10.7500/AEPS20240417008.
PENG Zihao,XIAO Fan,TU Chunming,et al.Optimal Control Strategy for Droop-controlled Inverter Considering Source-side Voltage Drop and Fault Reclosing[J].Automation of Electric Power Systems,2025,49(4):203-213. DOI: 10.7500/AEPS20240417008.
配电网源侧电压跌落将导致下垂并网逆变器暂态失稳,随之而来的传统无检重合闸又会带来过电流问题,逆变器安全运行面临巨大挑战。文中针对配电网源侧电压跌落时下垂逆变器暂态功角失稳和过电流问题,以及传统无检自动重合闸时产生冲击电流问题,提出一种故障暂态全周期的下垂逆变器优化控制方法。该方法有效提高了逆变器并网运行稳定性,减小重合闸时冲击电流,实现平滑并网。首先,分析了故障期间逆变器暂态特性及重合闸瞬时过电压与高压侧断路器两侧电压幅值、相角和频率偏差之间的规律。其次,在电压跌落阶段,根据下垂逆变器有功功率关于并网点电压输出特性和无功功率对线路电流幅值影响关系,结合实际工况动态调整逆变器功率参考值,控制故障前后暂态功角稳定,限制逆变器输出电流在安全阈值之下;在重合闸过渡阶段,引入频率-相角综合调节机制来减小电压频率差和相角差,相比于现有并网控制机制减少了指令计算环节比例-积分(PI)控制器的数量,极大地缩短了准同期所需时间。最后,结合仿真与实验结果,证明了理论分析与所提方法的正确性。
The voltage drop on the source side in the distribution network will lead to the transient instability of droop-controlled grid-connected inverters. Subsequent traditional unchecked reclosing will bring overcurrent problems
posing significant challenges to the safe operation of the inverter. To address the problems of transient power angle instability and overcurrent in the droop-controlled inverters due to the source-side voltage drops in the distribution network
as well as the impulse current generated by traditional unchecked automatic reclosing
this paper proposes an optimal control method for droop-controlled inverters during the full cycle of the fault transient. This method effectively improves the grid-connected operation stability of inverters and reduces the impulse current during reclosing to achieve a smooth grid connection. Firstly
the paper analyzes the transient characteristics of the inverter during the fault
and the relationship between the instantaneous overvoltage of the reclosing and the voltage amplitude
phase angle and frequency deviation on both sides of the high-voltage-side circuit breaker. Secondly
during the voltage drop phase
the reference value of the inverter power is dynamically adjusted based on the relationship between the active power of the droop-controlled inverter and the voltage output characteristics of the point of common coupling
as well as the influence of reactive power on the line current amplitude. This adjustment is made according to the actual working conditions
and the transient power angle stability before and after the fault is controlled to limit the output current of the inverter below the safety threshold. During the reclosing transition phase
the comprehensive adjustment mechanism of the frequency-phase angle is introduced to reduce the voltage frequency and phase angle difference. This mechanism reduces the number of proportional-integral controllers in the command calculation link and greatly shortens the time required for quasi-synchronization compared to the existing grid-connected control mechanism. Finally
the correctness of the theoretical analysis and proposed method is validated by combining simulation and experimental results.
胡博 , 谢开贵 , 邵常政 , 等 . 双碳目标下新型电力系统风险评述:特征、指标及评估方法 [J]. 电力系统自动化 , 2023 , 47 ( 5 ): 1 - 15 .
HU Bo , XIE Kaigui , SHAO Changzheng , et al . Commentary on risk of new power system under goals of carbon emission peak and carbon neutrality: characteristics, indices and assessment methods [J]. Automation of Electric Power Systems , 2023 , 47 ( 5 ): 1 - 15 .
卓振宇 , 张宁 , 康重庆 , 等 . 面向双碳目标的电力系统规划方案量化归因分析方法 [J]. 电力系统自动化 , 2023 , 47 ( 2 ): 1 - 14 .
ZHUO Zhenyu , ZHANG Ning , KANG Chongqing , et al . Quantitative attribution analysis method of power system planning scheme for carbon emission peak and carbon neutrality goals [J]. Automation of Electric Power Systems , 2023 , 47 ( 2 ): 1 - 14 .
谢小荣 , 贺静波 , 毛航银 , 等 . “双高”电力系统稳定性的新问题及分类探讨 [J]. 中国电机工程学报 , 2021 , 41 ( 2 ): 461 - 475 .
XIE Xiaorong , HE Jingbo , MAO Hangyin , et al . New issues and classification of power system stability with high shares of renewables and power electronics [J]. Proceedings of the CSEE , 2021 , 41 ( 2 ): 461 - 475 .
葛平娟 , 涂春鸣 , 肖凡 , 等 . 面向暂态稳定性能提升的VSG参数灵活控制策略 [J]. 中国电机工程学报 , 2022 , 42 ( 6 ): 2109 - 2124 .
GE Pingjuan , TU Chunming , XIAO Fan , et al . Transient stability enhancement of a VSG based on flexible switching of control parameters [J]. Proceedings of the CSEE , 2022 , 42 ( 6 ): 2109 - 2124 .
曹炜 , 钦焕乘 , 陆建忠 , 等 . 新型电力系统下虚拟同步机的定位和应用前景展望 [J]. 电力系统自动化 , 2023 , 47 ( 4 ): 190 - 207 .
CAO Wei , QIN Huancheng , LU Jianzhong , et al . Orientation and application prospect of virtual synchronous generator in new power system [J]. Automation of Electric Power Systems , 2023 , 47 ( 4 ): 190 - 207 .
王淋 , 巨云涛 , 吴文传 , 等 . 面向频率稳定提升的虚拟同步化微电网惯量阻尼参数优化设计 [J]. 中国电机工程学报 , 2021 , 41 ( 13 ): 4479 - 4490 .
WANG Lin , JU Yuntao , WU Wenchuan , et al . Optimal design of inertia and damping parameters of virtual synchronous microgrid for improving frequency stability [J]. Proceedings of the CSEE , 2021 , 41 ( 13 ): 4479 - 4490 .
彭放 , 高厚磊 , 郭一飞 , 等 . 构网逆变电源故障穿越控制策略及其对保护影响的研究综述 [J/OL]. 电网技术 : 1 - 15 [ 2024-09-10 ]. https://doi.org/10.13335/j.1000-3673.pst.2024.1308 https://doi.org/10.13335/j.1000-3673.pst.2024.1308 .
PENG Fang , GAO Houlei , GUO Yifei , et al . A review of fault ride-through control strategies of grid-forming inverter-based resources and the influence on protection [J/OL]. Power System Technology : 1 - 15 [ 2024-09-10 ]. https://doi.org/10.13335/j.1000-3673.pst.2024.1308 https://doi.org/10.13335/j.1000-3673.pst.2024.1308 .
谢震 , 高翔 , 张悬光 , 等 . 弱电网下功率同步构网型DFIG的阻尼分析及转矩振荡抑制 [J]. 电力系统自动化 , 2023 , 47 ( 11 ): 29 - 38 .
XIE Zhen , GAO Xiang , ZHANG Xuanguang , et al . Damping analysis and torque oscillation suppression of power synchronized grid-forming doubly-fed induction generator in weak grid [J]. Automation of Electric Power Systems , 2023 , 47 ( 11 ): 29 - 38 .
赵郅毅 , 许寅 , 吴翔宇 , 等 . 含异构微源的混合型孤岛微电网暂态有功响应分析与控制策略 [J]. 电工技术学报 , 2024 , 39 ( 19 ): 6072 - 6084 .
ZHAO Zhiyi , XU Yin , WU Xiangyu , et al . Transient active power response analysis and control strategy of hybrid island microgrid containing heterogeneous microsources [J]. Transactions of China Electrotechnical Society , 2024 , 39 ( 19 ): 6072 - 6084 .
孙正龙 , 郝舒宇 , 李明达 , 等 . 含构网型双馈风电的电力系统低频振荡能量结构分析方法 [J/OL]. 电工技术学报 : 1 - 16 [ 2024-11-22 ]. https://doi.org/10.19595/j.cnki.1000-6753.tces.240271 https://doi.org/10.19595/j.cnki.1000-6753.tces.240271 .
SUN Zhenglong , HAO Shuyu , LI Mingda , et al . Low frequency oscillation analysis method for grid-forming doubly-fed wind power systems based on energy structures [J/OL]. Transactions of China Electrotechnical Society : 1 - 16 [ 2024-11-22 ]. https://doi.org/10.19595/j.cnki.1000-6753.tces.240271 https://doi.org/10.19595/j.cnki.1000-6753.tces.240271 .
张静怡 , 田震 , 李锡林 , 等 . 考虑阻尼影响的虚拟同步发电机暂态同步稳定性量化分析 [J/OL]. 电力系统自动化 [ 2024-06-19 ]. https://kns.cnki.net/kcms/detail/32.1180.TP.20240617.2227.004.html https://kns.cnki.net/kcms/detail/32.1180.TP.20240617.2227.004.html .
ZHANG Jingyi , TIAN Zhen , LI Xilin , et al . Quantitative analysis of transient synchronous stability of virtual synchronous generator considering damping effect [J/OL]. Automation of Electric Power Systems [ 2024-06-19 ]. https://kns.cnki.net/kcms/detail/32.1180.TP.20240617.2227.004.html https://kns.cnki.net/kcms/detail/32.1180.TP.20240617.2227.004.html .
颜湘武 , 蔡光 , 李锐博 , 等 . 计及功角偏差和阻尼效应的构网型双馈风机暂态稳定性分析 [J/OL]. 中国电机工程学报 [ 2024-06-22 ]. https://doi.org/10.13334/j.0258-8013.pcsee.232186 https://doi.org/10.13334/j.0258-8013.pcsee.232186 .
YAN Xiangwu , CAI Guang , LI Ruibo , et al . Transient stability analysis of grid forming-doubly fed induction generator with power angle deviation and damping effect [J/OL]. Proceedings of the CSEE [ 2024-06-22 ]. https://doi.org/10.13334/j.0258-8013.pcsee.232186 https://doi.org/10.13334/j.0258-8013.pcsee.232186 .
王耀函 , 张扬帆 , 蔡光 , 等 . 计及电流限幅的构网型双馈风机暂态模型建模及适用性分析 [J]. 电力系统保护与控制 , 2024 , 52 ( 21 ): 92 - 102 .
WANG Yaohan , ZHANG Yangfan , CAI Guang , et al . Transient modeling and applicability analysis of a grid-forming doubly-fed induction generator taking into account current limitation [J]. Power System Protection and Control , 2024 , 52 ( 21 ): 92 - 102 .
FAN B , LIU T , ZHAO F Z , et al . A review of current-limiting control of grid-forming inverters under symmetrical disturbances [J]. IEEE Open Journal of Power Electronics , 2022 , 3 : 955 - 969 .
陈巧地 , 张兴 , 李明 , 等 . 基于阻抗辨识的下垂控制并网逆变器孤岛检测方法 [J]. 电力系统自动化 , 2020 , 44 ( 7 ): 123 - 129 .
CHEN Qiaodi , ZHANG Xing , LI Ming , et al . Impedance identification based islanding detection method for grid-connected inverter with droop control [J]. Automation of Electric Power Systems , 2020 , 44 ( 7 ): 123 - 129 .
吴宇奇 , 叶雨晴 , 马啸 , 等 . 抑制电压波动与规避频率越限的孤岛微电网并网预同步方案 [J]. 电力系统自动化 , 2021 , 45 ( 14 ): 56 - 64 .
WU Yuqi , YE Yuqing , MA Xiao , et al . Pre-synchronization scheme with voltage fluctuation suppression and frequency out-of-limit avoidance for grid connection of islanded microgrid [J]. Automation of Electric Power Systems , 2021 , 45 ( 14 ): 56 - 64 .
曹炜 , 何必伦 , 陈思远 , 等 . 改进故障穿越方法的VSG对同步机之间功角稳定性的影响研究 [J]. 电力系统及其自动化学报 , 2022 , 34 ( 12 ): 121 - 128 .
CAO Wei , HE Bilun , CHEN Siyuan , et al . Research on influence of VSG with improved fault ride through method on power angle stability between synchronous generators [J]. Proceedings of the CSU-EPSA , 2022 , 34 ( 12 ): 121 - 128 .
LUO C , CHEN Y D , XU Y C , et al . Two-stage transient control for VSG considering fault current limitation and transient angle stability [J]. IEEE Transactions on Industrial Electronics , 2024 , 71 ( 7 ): 7169 - 7179 .
XIONG X L , WU C , BLAABJERG F . Effects of virtual resistance on transient stability of virtual synchronous generators under grid voltage sag [J]. IEEE Transactions on Industrial Electronics , 2022 , 69 ( 5 ): 4754 - 4764 .
PAN D H , WANG X F , LIU F C , et al . Transient stability of voltage-source converters with grid-forming control: a design-oriented study [J]. IEEE Journal of Emerging and Selected Topics in Power Electronics , 2020 , 8 ( 2 ): 1019 - 1033 .
ME S P , RAVANJI M H , MANSOUR M Z , et al . Transient stability of paralleled virtual synchronous generator and grid-following inverter [J]. IEEE Transactions on Smart Grid , 2023 , 14 ( 6 ): 4451 - 4466 .
张思东 , 黄云辉 , 周党生 , 等 . 弱电网下VSC控制环路对直流电压稳定性的影响分析 [J]. 高电压技术 , 2021 , 47 ( 8 ): 2730 - 2742 .
ZHANG Sidong , HUANG Yunhui , ZHOU Dangsheng , et al . Impacts analysis of VSC control loop on DC voltage control stability in weak-grid [J]. High Voltage Engineering , 2021 , 47 ( 8 ): 2730 - 2742 .
马堰泓 , 付立军 , 胡祺 , 等 . 计及暂态模式切换下垂控制逆变器故障下同步稳定分析 [J]. 电机与控制学报 , 2022 , 26 ( 10 ): 1 - 11 .
MA Yanhong , FU Lijun , HU Qi , et al . Synchronous stability analysis of droop controlled inverter considering transient mode switching under fault [J]. Electric Machines and Control , 2022 , 26 ( 10 ): 1 - 11 .
ROKROK E , QORIA T , BRUYERE A , et al . Transient stability assessment and enhancement of grid-forming converters embedding current reference saturation as current limiting strategy [J]. IEEE Transactions on Power Systems , 2022 , 37 ( 2 ): 1519 - 1531 .
刘航 , 王跃 , 刘永慧 , 等 . 基于定量设计虚拟阻抗的VSG低电压穿越策略 [J]. 高电压技术 , 2022 , 48 ( 1 ): 245 - 256 .
LIU Hang , WANG Yue , LIU Yonghui , et al . The LVRT strategy for VSG based on the quantitatively designed virtual impedance [J]. High Voltage Engineering , 2022 , 48 ( 1 ): 245 - 256 .
郭力 , 黄玉辉 , 李霞林 , 等 . VSC输出电流反馈型虚拟同步控制技术 [J/OL]. 电力自动化设备 : 1 - 14 [ 2024-09-10 ]. https://doi.org/10.16081/j.epae.202408018 https://doi.org/10.16081/j.epae.202408018 .
GUO Li , HUANG Yuhui , LI Xialin , et al . VSC output current feedback-based virtual synchronous control technology [J/OL]. Electric Power Automation Equipment : 1 - 14 [ 2024-09-10 ]. https://doi.org/10.16081/j.epae.202408018 https://doi.org/10.16081/j.epae.202408018 .
LI M X , SHU S R , WANG Y , et al . Analysis and improvement of large-disturbance stability for grid-connected VSG based on output impedance optimization [J]. IEEE Transactions on Power Electronics , 2022 , 37 ( 8 ): 9807 - 9826 .
邹常跃 , 陈俊 , 魏伟 , 等 . 基于下垂控制的柔直变流器孤岛-并网控制模式切换方法 [J]. 南方电网技术 , 2022 , 16 ( 11 ): 92 - 101 .
ZOU Changyue , CHEN Jun , WEI Wei , et al . Method for switching of island-grid control mode for VSC-HVDC converter based on droop control [J]. Southern Power System Technology , 2022 , 16 ( 11 ): 92 - 101 .
张纯江 , 徐菁远 , 庆宏阳 , 等 . 主从结构微电网逆变器离网全过程平滑切换控制策略 [J]. 电力系统自动化 , 2022 , 46 ( 23 ): 125 - 133 .
ZHANG Chunjiang , XU Jingyuan , QING Hongyang , et al . Seamless transferring control strategy for master-slave microgrid inverter in whole off-grid process [J]. Automation of Electric Power Systems , 2022 , 46 ( 23 ): 125 - 133 .
SUN K , YAO W , WEN J Y , et al . A two-stage simultaneous control scheme for the transient angle stability of VSG considering current limitation and voltage support [J]. IEEE Transactions on Power Systems , 2022 , 37 ( 3 ): 2137 - 2150 .
李育强 , 宋国兵 , 王维庆 , 等 . 基于参数识别光伏接入配网永久性故障判别方法 [J]. 电力系统保护与控制 , 2017 , 45 ( 16 ): 1 - 7 .
LI Yuqiang , SONG Guobing , WANG Weiqing , et al . Permanent fault identification method based on parameter identification for photovoltaic access to distribution network [J]. Power System Protection and Control , 2017 , 45 ( 16 ): 1 - 7 .
IEEE standard for interconnecting distributed resources with electric power systems: IEEE Std 1547—2003 [S]. 2003 .
ZEB K , ISLAM S U , KHAN I , et al . Faults and fault ride through strategies for grid-connected photovoltaic system: a comprehensive review [J]. Renewable and Sustainable Energy Reviews , 2022 , 158 : 112125 .
光伏发电并网逆变器技术要求 : GB/T 37408—2019 [S]. 2019 .
Technical requirements for photovoltaic gird-connected inverter : GB/T 37408—2019 [S]. 2019 .
0
Views
0
下载量
0
CSCD
Publicity Resources
Related Articles
Related Author
Related Institution
京公网安备11010802024621