
浏览全部资源
扫码关注微信
1.中国科学院电工研究所,北京市 100190
2.中国科学院大学电子电气与通信工程学院,北京市 100049
熊佳旺(1997—),男,博士研究生,主要研究方向:高比例新能源电力电子化配电网稳定及其控制。E-mail:xiongjiawang@mail.iee.ac.cn
孔力(1958—),男,通信作者,研究员,博士生导师,主要研究方向:电力系统分析、分布式发电以及微电网系统。E-mail:kongli@mail.iee.ac.cn
叶华(1982—),男,博士,副研究员,硕士生导师,主要研究方向:电力系统建模、仿真算法、大规模风电并网。E-mail:yehua@mail.iee.ac.cn
收稿:2021-11-07,
修回:2022-04-22,
纸质出版:2022-12-25
移动端阅览
熊佳旺,孔力,叶华等.弱电网中锁相环型并网变换器非线性暂态稳定解析分析[J].电力系统自动化,2022,46(24):76-84.
XIONG Jiawang,KONG Li,YE Hua,et al.Analytical Analysis on Nonlinear Transient Stability of Phase-locked Loop Type Grid-connected Converter in Weak Power Grid[J].Automation of Electric Power Systems,2022,46(24):76-84.
熊佳旺,孔力,叶华等.弱电网中锁相环型并网变换器非线性暂态稳定解析分析[J].电力系统自动化,2022,46(24):76-84. DOI: 10.7500/AEPS20211107004.
XIONG Jiawang,KONG Li,YE Hua,et al.Analytical Analysis on Nonlinear Transient Stability of Phase-locked Loop Type Grid-connected Converter in Weak Power Grid[J].Automation of Electric Power Systems,2022,46(24):76-84. DOI: 10.7500/AEPS20211107004.
电力电子变换器具有惯量小、动态过程快且复杂等特点,这给新型电力系统的暂态分析带来严峻挑战。尤其是在弱电网条件下,锁相环的非线性特性使并网变换器系统稳定分析变得更为复杂。然而,传统的暂态分析方法忽略了关键非线性特性,难以获得简洁实用的稳定判据。针对上述问题,建立了基于并网变换器系统扰动量的二阶非线性动力学模型,引入非线性振动学科的平均法对模型进行求解,获得了低阶近似解析解,进而推导出弱电网环境下并网变换器系统的稳定判据,并根据理论推导分析了模型的非线性项、锁相环控制参数及系统短路比对系统暂态稳定性的影响。最后,通过仿真与实验验证了所提方法的有效性和分析结果的正确性。
Power electronic converters have the characteristics of small inertia
and fast and complex dynamic process
which bring severe challenges to the transient analysis of new power systems. Especially in weak grid conditions
the nonlinear characteristics of the phase-locked loop make the stability analysis of the grid-connected converter system more complicated. However
the key nonlinear characteristics are ignored in the traditional transient analysis method
and it is difficult to obtain a simple and practical stability criterion. To solve the above problems
a second-order nonlinear dynamics model based on the disturbance variable of the grid-connected converter system is established. The averaging method of the nonlinear vibration discipline is introduced to solve the model and obtain the low-order approximate analytical solution
and then the stability criterion of the grid-connected converter system in the weak grid environment is derived. Based on the theoretical derivation
the effects of model nonlinear terms
phase-locked loop control parameters and system short-circuit ratio on system transient stability are analyzed. Finally
the validity of the proposed method and the correctness of the analysis results are verified through the simulations and experiments.
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 .
文云峰 , 杨伟峰 , 林晓煌 . 低惯量电力系统频率稳定分析与控制研究综述及展望 [J]. 电力自动化设备 , 2020 , 40 ( 9 ): 211 - 222 .
WEN Yunfeng , YANG Weifeng , LIN Xiaohuang . Review and prospect of frequency stability analysis and control of low-inertia power systems [J]. Electric Power Automation Equipment , 2020 , 40 ( 9 ): 211 - 222 .
赵卓立 , 杨苹 , 许志荣 , 等 . 多源多变换微电网大扰动暂态稳定性研究综述 [J]. 电网技术 , 2017 , 41 ( 7 ): 2195 - 2204 .
ZHAO Zhuoli , YANG Ping , XU Zhirong , et al . Review on large-disturbance transient stability research of microgrid with multiple energy resources and multiple conversions [J]. Power System Technology , 2017 , 41 ( 7 ): 2195 - 2204 .
Joint NERC and WECC Staff . 900 MW fault induced solar photovoltaic resource interruption disturbance report [R]. Atlanta, USA : NERC , 2018 .
孙华东 , 许涛 , 郭强 , 等 . 英国“8·9”大停电事故分析及对中国电网的启示 [J]. 中国电机工程学报 , 2019 , 39 ( 21 ): 6183 - 6192 .
SUN Huadong , XU Tao , GUO Qiang , et al . Analysis on blackout in Great Britain power grid on August 9th, 2019 and its enlightenment to power grid in China [J]. Proceedings of the CSEE , 2019 , 39 ( 21 ): 6183 - 6192 .
陈露洁 , 徐式蕴 , 孙华东 , 等 . 高比例电力电子电力系统宽频带振荡研究综述 [J]. 中国电机工程学报 , 2021 , 41 ( 7 ): 2297 - 2310 .
CHEN Lujie , XU Shiyun , SUN Huadong , et al . A survey on wide-frequency oscillation for power systems with high penetration of power electronics [J]. Proceedings of the CSEE , 2021 , 41 ( 7 ): 2297 - 2310 .
WEN B , BOROYEVICH D , BURGOS R , et al . Analysis of d - q small-signal impedance of grid-tied inverters [J]. IEEE Transactions on Power Electronics , 2016 , 31 ( 1 ): 675 - 687 .
WANG X W , YAO J , PEI J X , et al . Analysis and damping control of small-signal oscillations for VSC connected to weak AC grid during LVRT [J]. IEEE Transactions on Energy Conversion , 2019 , 34 ( 3 ): 1667 - 1676 .
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 .
WANG X F , HARNEFORS L , BLAABJERG F . Unified impedance model of grid-connected voltage-source converters [J]. IEEE Transactions on Power Electronics , 2018 , 33 ( 2 ): 1775 - 1787 .
YANG D S , WANG X F . Unified modular state-space modeling of grid-connected voltage-source converters [J]. IEEE Transactions on Power Electronics , 2020 , 35 ( 9 ): 9700 - 9715 .
顾丹珍 , 艾芊 , 陈陈 , 等 . 基于ATP-EMTP的大型电力系统暂态稳定仿真 [J]. 电力系统自动化 , 2006 , 30 ( 21 ): 54 - 56 .
GU Danzhen , AI Qian , CHEN Chen , et al . Transient stability simulation of a large power system based on ATP-EMTP [J]. Automation of Electric Power Systems , 2006 , 30 ( 21 ): 54 - 56 .
刘笙 , 陈陈 . 电力系统暂态稳定的能量函数分析:网络结构保持模型 [M]. 北京 : 科学出版社 , 2014 .
LIU Sheng , CHEN Chen . Energy function analysis of power system transient stability: network structure maintenance model [M]. Beijing : Science Press , 2014 .
HU Q , FU L J , MA F , et al . Large signal synchronizing instability of PLL-based VSC connected to weak AC grid [J]. IEEE Transactions on Power Systems , 2019 , 34 ( 4 ): 3220 - 3229 .
CHENG H J , SHUAI Z K , SHEN C , et al . Transient angle stability of paralleled synchronous and virtual synchronous generators in islanded microgrids [J]. IEEE Transactions on Power Electronics , 2020 , 35 ( 8 ): 8751 - 8765 .
TRAN T , HA Q P . Semi-automatic control of network systems with non-monotonic Lyapunov function [J]. International Journal of Control , 2021 , 94 ( 8 ): 2144 - 2160 .
宋国杰 , 李国进 , 杨浩 , 等 . 基于李雅普诺夫函数的微电网下并网逆变器的自适应控制 [J]. 高电压技术 , 2020 , 46 ( 12 ): 4455 - 4463 .
SONG Guojie , LI Guojin , YANG Hao , et al . Adaptive control of grid-connected inverter in microgrid based on Lyapunov function [J]. High Voltage Engineering , 2020 , 46 ( 12 ): 4455 - 4463 .
TIAN Z , TANG Y J , ZHA X M , et al . Hamilton-based stability criterion and attraction region estimation for grid-tied inverters under large-signal disturbances [J]. IEEE Journal of Emerging and Selected Topics in Power Electronics , 2022 , 10 ( 1 ): 413 - 423 .
刘俊磊 , 曹娜 , 钱峰 , 等 . 考虑双馈风电机组变流器控制参数的风电场内机组振荡分析 [J]. 电力系统自动化 , 2021 , 45 ( 10 ): 42 - 49 .
LIU Junlei , CAO Na , QIAN Feng , et al . Analysis of unit oscillation in wind farm considering control parameters of converter for DFIG-based wind turbine [J]. Automation of Electric Power Systems , 2021 , 45 ( 10 ): 42 - 49 .
TANG W , HU J B , CHANG Y Z , et al . Modeling of DFIG-based wind turbine for power system transient response analysis in rotor speed control timescale [J]. IEEE Transactions on Power Systems , 2018 , 33 ( 6 ): 6795 - 6805 .
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 .
LANDAO L D , LIFSCHIC E M . Mechanics (course of theoretical physics [M]. Oxford, UK : Pergamon Press , 1989 .
刘延柱 , 陈立群 . 非线性振动 [M]. 北京 : 高等教育出版社 , 2001 .
LIU Yanzhu , CHEN Liqun . Nonlinear vibrations [M]. Beijing : Higher Education Press , 2001 .
HE X Q , GENG H , MA S K . Transient stability analysis of grid-tied converters considering PLL's nonlinearity [J]. CPSS Transactions on Power Electronics and Applications , 2019 , 4 ( 1 ): 40 - 49 .
0
浏览量
0
下载量
8
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621