
浏览全部资源
扫码关注微信
1.浙江大学电气工程学院,浙江省杭州市 310027
2.国网福建省电力有限公司,福建省福州市 350003
3.国网福建省电力有限公司电力科学研究院,福建省福州市 350007
4.中国电力科学研究院有限公司,北京市 100192
于彦雪(1991—),女,博士,主要研究方向:新能源发电并网逆变技术。E-mail:yay@zju.edu.cn
胡鹏飞(1988—),男,通信作者,博士研究员,主要研究方向:柔性交直流输配电技术、新能源并网与主动配电网、电力电子化电力系统分析与控制。E-mail:hpf@zju.edu.cn
陈玉树(1973—),男,硕士,主要研究方向:电力系统及其自动化。E-mail:chen_yushu@fj.sgcc.com.cn
收稿日期:2021-11-15,
修回日期:2022-02-14,
网络出版日期:2022-05-20,
纸质出版日期:2022-07-25
移动端阅览
于彦雪,胡鹏飞,陈玉树等.极弱电网下并网逆变器功率传输能力分析及提升方法[J].电力系统自动化,2022,46(14):101-108.
YU Yanxue,HU Pengfei,CHEN Yushu,et al.Analysis and Improvement Method of Power Transfer Capability for Grid-connected Inverter in Ultra-weak Grid[J].Automation of Electric Power Systems,2022,46(14):101-108.
于彦雪,胡鹏飞,陈玉树等.极弱电网下并网逆变器功率传输能力分析及提升方法[J].电力系统自动化,2022,46(14):101-108. DOI: 10.7500/AEPS20211115001.
YU Yanxue,HU Pengfei,CHEN Yushu,et al.Analysis and Improvement Method of Power Transfer Capability for Grid-connected Inverter in Ultra-weak Grid[J].Automation of Electric Power Systems,2022,46(14):101-108. DOI: 10.7500/AEPS20211115001.
针对极弱电网下并网点电压跌落引起并网逆变器有功功率传输受限的问题,提出一种并网点电压分段自适应补偿控制方法。在对单位功率因数控制下并网逆变器运行电流与同步稳定性、并网点电压、有功功率、电网阻抗之间的关系进行深入分析的基础上,根据纯感性电网下逆变器并网点电压幅值跌落不大于10%且最大化功率因数的原则,设计分段自适应补偿系数,并考虑功率因数不小于0.9的并网要求,分析电压补偿范围。此外,考虑电网阻性成分,以阻抗比为0.31的高压输电线路为例,讨论所提控制方法的适用性。理论分析和实验结果表明,在纯感性和阻抗比为0.31的电网中,补偿后并网逆变器所能传输的有功功率最大值分别提高100%和40%,使逆变器可稳定运行在短路比接近于1的极弱电网中。
Aiming at the limitation problem of the active power transmission of the grid-connected inverters caused by the voltage drop at the point of common coupling (PPC) in ultra-weak grids
a partitioned adaptive compensation control method for PCC voltage is proposed. The relationships of the operation current with the synchronization stability
PCC voltage
active power
and grid impedance are analyzed in the grid-connected inverters with unity power factor control. Based on the analysis
the partitioned adaptive compensation coefficient is designed according to the principle that the PCC voltage amplitude drop of the inverters in the pure inductive grid is within 10% and the power factor gets maximized. Then
the voltage compensation range is analyzed considering the grid-connected requirement that the power factor is not less than 0.9. In addition
the applicability of the proposed control method is discussed by taking a high-voltage transmission line with an impedance ratio of 0.31 as an example considering the resistive component of the grid. Theoretical analysis and experimental results show that the maximum active power transferred by the grid-connected inverter after the compensation increases by 100% and 40% in the pure inductive power grid and the grid with the impedance ratio of 0.31
respectively. Therefore
the inverters can operate stably in the ultra-weak grid with short-circuit ratio close to 1.
曾正 , 李辉 , 冉立 . 交流微电网逆变器控制策略述评 [J]. 电力系统自动化 , 2016 , 40 ( 9 ): 142 - 151 .
ZENG Zheng , LI Hui , RAN Li . Comparison on control strategies of inverters in AC microgrids [J]. Automation of Electric Power Systems , 2016 , 40 ( 9 ): 142 - 151 .
丁明 , 王伟胜 , 王秀丽 , 等 . 大规模光伏发电对电力系统影响综述 [J]. 中国电机工程学报 , 2014 , 34 ( 1 ): 1 - 14 .
DING Ming , WANG Weisheng , WANG Xiuli , et al . A review on the effect of large-scale PV generation on power systems [J]. Proceedings of the CSEE , 2014 , 34 ( 1 ): 1 - 14 .
卓振宇 , 张宁 , 谢小荣 , 等 . 高比例可再生能源电力系统关键技术及发展挑战 [J]. 电力系统自动化 , 2021 , 45 ( 9 ): 171 - 191 .
ZHUO Zhenyu , ZHANG Ning , XIE Xiaorong , et al . Key technologies and developing challenges of power system with high proportion of renewable energy [J]. Automation of Electric Power Systems , 2021 , 45 ( 9 ): 171 - 191 .
吴滨源 , 李建文 , 李永刚 , 等 . 基于知识和数据联合驱动的并网逆变器多工况阻抗获取方法 [J]. 电力系统自动化 , 2022 , 46 ( 6 ): 83 - 91 .
WU Binyuan , LI Jianwen , LI Yonggang , et al . Combined data-knowledge-driven impedance acquisition method for grid-connected inverter under multiple operation conditions [J]. Automation of Electric Power Systems , 2022 , 46 ( 6 ): 83 - 91 .
YANG D S , WANG X F , LIU F C , et al . Adaptive reactive power control of PV power plants for improved power transfer capability under ultra-weak grid conditions [J]. IEEE Transactions on Smart Grid , 2019 , 10 ( 2 ): 1269 - 1279 .
朱凌志 , 曲立楠 , 刘纯 , 等 . 新能源发电集群的改进等效短路比计算方法 [J]. 电力系统自动化 , 2021 , 45 ( 22 ): 74 - 82 .
ZHU Lingzhi , QU Linan , LIU Chun , et al . Improved calculation method of equivalent short-circuit ratio for power generation cluster of renewable energy [J]. Automation of Electric Power Systems , 2021 , 45 ( 22 ): 74 - 82 .
黄云辉 , 周翩 , 王龙飞 . 弱电网下基于矢量控制的并网变换器功率控制稳定性 [J]. 电力系统自动化 , 2016 , 40 ( 14 ): 93 - 99 .
HUANG Yunhui , ZHOU Pian , WANG Longfei . Power control stability in vector control based voltage source converters connected to weak grid [J]. Automation of Electric Power Systems , 2016 , 40 ( 14 ): 93 - 99 .
康勇 , 林新春 , 郑云 , 等 . 新能源并网变换器单机无穷大系统的静态稳定极限及静态稳定工作区 [J]. 中国电机工程学报 , 2020 , 40 ( 14 ): 4506 - 4515 .
KANG Yong , LIN Xinchun , ZHENG Yun , et al . The static stable-limit and static stable-working zone for single-machine infinite-bus system of renewable-energy grid-connected converter [J]. Proceedings of the CSEE , 2020 , 40 ( 14 ): 4506 - 4515 .
康勇 , 林新春 , 潘辰 , 等 . 弱电网下采用SVC与SVG补偿后新能源并网变换器的功率传输特性分析 [J]. 中国电机工程学报 , 2021 , 41 ( 6 ): 2115 - 2125 .
KANG Yong , LIN Xinchun , PAN Chen , et al . Analysis of power transmission characteristics of renewable energy grid-connected converter considering SVC and SVG compensation under weak grid condition [J]. Proceedings of the CSEE , 2021 , 41 ( 6 ): 2115 - 2125 .
李杨 , 帅智康 , 方俊彬 , 等 . 基于阻抗测量的多逆变器系统稳定性校验方法 [J]. 电力系统自动化 , 2021 , 45 ( 11 ): 95 - 101 .
LI Yang , SHUAI Zhikang , FANG Junbin , et al . Stability check method for multi-inverter system based on impedance measurement [J]. Automation of Electric Power Systems , 2021 , 45 ( 11 ): 95 - 101 .
马兴 , 徐瑞林 , 陈民铀 , 等 . 提高弱电网下并网逆变器电流质量的自适应控制方法 [J]. 电网技术 , 2019 , 43 ( 8 ): 2892 - 2900 .
MA Xing , XU Ruilin , CHEN Minyou , et al . Adaptive control method for improving current quality of grid-connected inverter under weak grid [J]. Power System Technology , 2019 , 43 ( 8 ): 2892 - 2900 .
姜卫同 , 胡鹏飞 , 尹瑞 , 等 . 基于虚拟同步机的变流器暂态稳定分析及混合同步控制策略 [J]. 电力系统自动化 , 2021 , 45 ( 22 ): 124 - 133 .
JIANG Weitong , HU Pengfei , YIN Rui , et al . Transient stability analysis and hybrid synchronization control strategy of converter based on virtual synchronous generator [J]. Automation of Electric Power Systems , 2021 , 45 ( 22 ): 124 - 133 .
FLOURENTZOU N , AGELIDIS V G , DEMETRIADES G D . VSC-based HVDC power transmission systems: an overview [J]. IEEE Transactions on Power Electronics , 2009 , 24 ( 3 ): 592 - 602 .
RAO P , CROW M L , YANG Z . STATCOM control for power system voltage control applications [J]. IEEE Transactions on Power Delivery , 2000 , 15 ( 4 ): 1311 - 1317 .
曾正 , 杨欢 , 赵荣祥 , 等 . 多功能并网逆变器研究综述 [J]. 电力自动化设备 , 2012 , 32 ( 8 ): 5 - 15 .
ZENG Zheng , YANG Huan , ZHAO Rongxiang , et al . Overview of multi-functional grid-connected inverters [J]. Electric Power Automation Equipment , 2012 , 32 ( 8 ): 5 - 15 .
TAUL M G , WANG X F , DAVARI P , et al . An overview of assessment methods for synchronization stability of grid-connected converters under severe symmetrical grid faults [J]. IEEE Transactions on Power Electronics , 2019 , 34 ( 10 ): 9655 - 9670 .
于彦雪 . 多场景应用并网逆变器建模与同步稳定性研究 [D]. 哈尔滨 : 哈尔滨工业大学 , 2021 .
YU Yanxue . Research on modeling and synchronization stability of grid-connected inverters for multi-scenario applications [D]. Harbin : Harbin Institute of Technology , 2021 .
DONG D , WEN B , BOROYEVICH D , et al . Analysis of phase-locked loop low-frequency stability in three-phase grid-connected power converters considering impedance interactions [J]. IEEE Transactions on Industrial Electronics , 2015 , 62 ( 1 ): 310 - 321 .
张庆海 , 彭楚武 , 陈燕东 , 等 . 一种微电网多逆变器并联运行控制策略 [J]. 中国电机工程学报 , 2012 , 32 ( 25 ): 126 - 132 .
ZHANG Qinghai , PENG Chuwu , CHEN Yandong , et al . A control strategy for parallel operation of multi-inverters in microgrid [J]. Proceedings of the CSEE , 2012 , 32 ( 25 ): 126 - 132 .
CESPEDES M , SUN J . Adaptive control of grid-connected inverters based on online grid impedance measurements [J]. IEEE Transactions on Sustainable Energy , 2014 , 5 ( 2 ): 516 - 523 .
DEMIROK E , GONZÁLEZ P C , FREDERIKSEN K H B , et al . Local reactive power control methods for overvoltage prevention of distributed solar inverters in low-voltage grids [J]. IEEE Journal of Photovoltaics , 2011 , 1 ( 2 ): 174 - 182 .
0
浏览量
0
下载量
6
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621