Grid-Following and Grid-Forming Dual-natured Grid-connected Converter and Its Small-signal Stability Domain Analysis

LUO Yuhang; XIIAO Fan; XIE Weijie; TU Chunming; ZHENG Yuting; LI Jin

doi:10.7500/AEPS20250906001

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Grid-Following and Grid-Forming Dual-natured Grid-connected Converter and Its Small-signal Stability Domain Analysis

更新时间：2026-09-18

- Grid-Following and Grid-Forming Dual-natured Grid-connected Converter and Its Small-signal Stability Domain Analysis
- Automation of Electric Power Systems Pages: 1-21(2026)
- 作者机构：
  
  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.中国南方电网电力调度控制中心，广东省广州市 510670
- 作者简介：
- 基金信息：
  
  Smart Grid National Science and Technology Major Project(2025ZD0804400)
- DOI：10.7500/AEPS20250906001
  CLC：
- Received：06 September 2025，
  
  Revised：2026-01-07，
  
  Online First：12 June 2026，
- 稿件说明：
移动端阅览
罗宇航,肖凡,谢伟杰等.跟-构二象型并网变流器及其小扰动稳定域分析[J/OL].电力系统自动化, http://dx.doi.org/10.7500/AEPS20250906001.

LUO Yuhang,XIIAO Fan,XIE Weijie,et al.Grid-Following and Grid-Forming Dual-natured Grid-connected Converter and Its Small-signal Stability Domain Analysis[J/OL].Automation of Electric Power Systems, http://dx.doi.org/10.7500/AEPS20250906001.
罗宇航,肖凡,谢伟杰等.跟-构二象型并网变流器及其小扰动稳定域分析[J/OL].电力系统自动化, http://dx.doi.org/10.7500/AEPS20250906001. DOI：

LUO Yuhang,XIIAO Fan,XIE Weijie,et al.Grid-Following and Grid-Forming Dual-natured Grid-connected Converter and Its Small-signal Stability Domain Analysis[J/OL].Automation of Electric Power Systems, http://dx.doi.org/10.7500/AEPS20250906001. DOI：

摘要

随着分布式电源大规模渗透和输电距离显著延伸，新型电力系统电网强度呈现从极弱电网（短路比为1）到极强电网（短路比为40）的宽范围波动，导致并网变流器稳定性面临严峻挑战。跟网型变流器在弱电网下负阻效应显著，输出波形易畸变；构网型变流器与强电网功率耦合紧密，易引发功率振荡。基于此，文中提出一种跟-构二象型并网变流器，可使用单台并网变流器模拟跟网型/构网型变流器并联系统的外特性。基于阻抗特性曲线分析了跟-构二象型型并网变流器宽电网强度适应性的内在机理。进一步，基于稳定域提出了自适应配比系数选取方法。最后，通过RT-LAB硬件在环平台验证了所提控制策略的有效性及稳定性。分析表明，跟-构二象型型并网变流器兼具良好的主动支撑特性和宽电网强度适应能力，为电网强度大幅波动下增强并网系统稳定性提供了一种简单灵活、经济高效、电网友好的解决方案。

Abstract

With the large-scale penetration of distributed generators and the significant extension of transmission distance

the grid strength of the new power system exhibits wide-range fluctuations from the extremely weak grid (the short-circuit ratio is 1) to the extremely strong grid (the short-circuit ratio is 40). This poses severe challenges to the stability of grid-connected converters. The grid-following converter is prone to exhibiting negative impedance effect in the weak grid

resulting in distorted output waveforms. The grid-forming converter has tight power coupling with the strong grid

which is prone to power oscillation. To address these issues

this paper proposes a grid-following and grid-forming dual-natured grid-connected converter

which can simulate the external characteristics of the parallel system of grid-following and grid-forming converters with a single grid-connected converter. The internal mechanism of the wide grid strength adaptability of the grid-following and grid-forming dual-natured grid-connected converter is analyzed based on the impedance characteristic curves. Furthermore

an adaptive selection method for the proportion coefficient is proposed based on the stable domain. Finally

the effectiveness and the stability of the proposed control strategy are verified through the RT-LAB hardware-in-the-loop platform. Analysis demonstrates that the grid-following and grid-forming dual-natured grid-connected converter has excellent active support characteristics and wide grid-strength adaptability

providing a simple

flexible

cost-effective

and grid-friendly solution for improving the stability of the grid-connected system with large fluctuations in grid strength.

关键词

Keywords

references

张东辉，陈新 . 基于阻抗视角的新能源发电系统宽频振荡抑制技术综述［J］. 中国电机工程学报， 2024 ， 44 （ 24 ）： 9672 - 9690 .

Zhang Donghui ， Chen Xin . Overview of broadband oscillation mitigation of new energy generation power system based on impedance perspective ［J］. Proceedings of the CSEE ， 2024 ， 44 （ 24 ）： 9672 - 9690 .

马宁宁，谢小荣，贺静波，等 . 高比例新能源和电力电子设备电力系统的宽频振荡研究综述［J］. 中国电机工程学报， 2020 ， 40 （ 15 ）： 4720 - 4731 .

Ma Ningning ， Xie Xiaorong ， He Jingbo ， et al . Review of wide-band oscillation in renewable and power electronics highly integrated power systems ［J］. Proceedings of the CSEE ， 2020 ， 40 （ 15 ）： 4720 - 4731 .

胡光，辛焕海，庄可好，等 . 小扰动强度视角下新型电力系统构建的必要约束条件探讨［J］. 中国电机工程学报， 2026 ， 46 （ 1 ）： 17 - 30 .

Hu Guang ， Xin Huanhai ， Zhuang Kehao ， et al . Discussion on necessary constraints for constructing renewable power systems from the small-disturbance system strength perspective ［J］. Proceedings of the CSEE ， 2026 ， 46 （ 1 ）： 17 - 30 .

Zheng Y T ， Xiao F ， Xie W J ， et al . Area-based stability analysis method of grid-connected converter under wide operating conditions ［J］. International Journal of Electrical Power & Energy Systems ， 2024 ， 162 ： 110318 .

Fu X K ， Huang M ， Tse C K ， et al . Synchronization stability of grid-following VSC considering interactions of inner current loop and parallel-connected converters ［J］. IEEE Transactions on Smart Grid ， 2023 ， 14 （ 6 ）： 4230 - 4241 .

Jeong S ， Jang G . Stability analysis of a weak-grid-connected voltage-sourced rectifier considering the phase-locked loop dynamics ［J］. IEEE Transactions on Power Systems ， 2023 ， 38 （ 1 ）： 436 - 446 .

刘星琪，邹志翔，姚屹洋，等 . 基于锁相环与电流环解耦的并网变换器稳定性控制策略［J］. 电力系统自动化， 2024 ， 48 （ 19 ）： 109 - 119 .

Liu Xingqi ， Zou Zhixiang ， Yao Yiyang ， et al . Stability control strategy for grid-connected converter based on decoupling of phase-locked loop and current loop ［J］. Automation of Electric Power Systems ， 2024 ， 48 （ 19 ）： 109 - 119 .

Ma F ， Xin H H ， Wu D ， et al . Assessing small-signal grid strength of 100% inverter-based power systems ［J］. IEEE Transactions on Power Delivery ， 2024 ， 39 （ 5 ）： 2784 - 2796 .

Zhao F Z ， Wang X F ， Zhu T H . Power dynamic decoupling control of grid-forming converter in stiff grid ［J］. IEEE Transactions on Power Electronics ， 2022 ， 37 （ 8 ）： 9073 - 9088 .

Aragon D A ， Unamuno E ， Ceballos S ， et al . Comparative small-signal evaluation of advanced grid-forming control techniques ［J］. Electric Power Systems Research ， 2022 ， 211 ： 108154 .

张兴，战祥对，吴孟泽，等 . 高渗透率新能源发电并网变流器跟网/构网混合模式控制综述［J］. 电力系统自动化， 2024 ， 48 （ 21 ）： 1 - 15 .

Zhang Xing ， Zhan Xiangdui ， Wu Mengze ， et al . Review on grid-following/grid-forming hybrid mode control for grid-connected converter in high penetration rate of renewable energy generation ［J］. Automation of Electric Power Systems ， 2024 ， 48 （ 21 ）： 1 - 15 .

张斌，张学广，徐殿国 . 构网型与跟网型变流器混联并网系统配比关键影响因素分析［J］. 电力系统自动化， 2025 ， 49 （ 1 ）： 47 - 58 .

Zhang Bin ， Zhang Xueguang ， Xu Dianguo . Analysis on key influence factors of ratio of grid-forming and grid-following converters in hybrid parallel grid-connected system ［J］. Automation of Electric Power Systems ， 2025 ， 49 （ 1 ）： 47 - 58 .

Ruan H ， Xiao Y ， Luo H ， et al . Optimized parameter design of grid-following and grid-forming converters for wide operating region ［J］. IEEE Journal of Emerging and Selected Topics in Power Electronics ， 2025 ， 13 （ 4 ）： 5218 - 5233 .

苟少云，郭春义 . 构网型与跟网型混合直驱风电场并网稳定域分析［J］. 电力系统自动化， 2025 ， 49 （ 2 ）： 73 - 83 .

Gou Shaoyun ， Guo Chunyi . Grid-connection stability domain analysis for wind farms with hybrid direct-drive grid-forming and grid-following wind turbines ［J］. Automation of Electric Power Systems ， 2025 ， 49 （ 2 ）： 73 - 83 .

Yang C R ， Huang L B ， Xin H H ， et al . Placing grid-forming converters to enhance small signal stability of PLL-integrated power systems ［J］. IEEE Transactions on Power Systems ， 2021 ， 36 （ 4 ）： 3563 - 3573 .

Zou Z X ， Tang J ， Wang X F ， et al . Modeling and control of a two-bus system with grid-forming and grid-following converters ［J］. IEEE Journal of Emerging and Selected Topics in Power Electronics ， 2022 ， 10 （ 6 ）： 7133 - 7149 .

Sun P ， Xu H ， Yao J ， et al . Dynamic interaction analysis and damping control strategy of hybrid system with grid-forming and grid-following control modes ［J］. IEEE Transactions on Energy Conversion ， 2023 ， 38 （ 3 ）： 1639 - 1649 .

Jiang S ， Konstantinou G . Generalized impedance model and interaction analysis for multiple grid-forming and grid-following converters ［J］. Electric Power Systems Research ， 2023 ， 214 ： 108912 .

Xin H H ， Liu C X ， Chen X ， et al . How many grid-forming converters do we need？ a perspective from small signal stability and power grid strength ［J］. IEEE Transactions on Power Systems ， 2025 ， 40 （ 1 ）： 623 - 635 .

Lorzadeh I ， Lorzadeh O ， Bozalakov D V ， et al . Hybrid control for integrating grid-forming and grid-following capabilities in a single VSI： an efficiency-driven approach ［C］// 2024 IEEE 15th International Symposium on Power Electronics for Distributed Generation Systems （PEDG）， 2024 .

Li M ， Zhang X ， Guo Z X ， et al . Impedance adaptive dual-mode control of grid-connected inverters with large fluctuation of SCR and its stability analysis based on D-partition method ［J］. IEEE Transactions on Power Electronics ， 2021 ， 36 （ 12 ）： 14420 - 14435 .

李明，张兴，郭梓暄，等 . 弱电网下基于电网阻抗自适应的双模式并网稳定控制策略［J］. 太阳能学报， 2021 ， 42 （ 7 ）： 86 - 93 .

Li Ming ， Zhang Xing ， Guo Zixuan ， et al . Grid impedance adaption dual mode grid-connected stability control strategy in a weak grid ［J］. Acta Energiae Solaris Sinica ， 2021 ， 42 （ 7 ）： 86 - 93 .

张展，肖晃庆，刘文泽，等 . 基于运行短路比的新能源场站换流器模式切换技术研究［J］. 太阳能学报， 2025 ， 46 （ 7 ）： 279 - 289 .

Zhang Zhan ， Xiao Huangqing ， Liu Wenze ， et al . Research on mode switching technology of voltage-source converters in energy stations based on operating short-circuit ratio ［J］. Acta Energiae Solaris Sinica ， 2025 ， 46 （ 7 ）： 279 - 289 .

周于清，姚伟，宗启航，等 . 基于运行短路比的新能源场站中跟/构网可切换单元的最优配置方法［J］. 电网技术， 2024 ， 48 （ 3 ）： 1091 - 1102 .

Zhou Yuqing ， Yao Wei ， Zong Qihang ， et al . Optimal configuration of grid-following/grid-forming switchable units in new energy stations based on operating short-circuit ratio ［J］. Power System Technology ， 2024 ， 48 （ 3 ）： 1091 - 1102 .

Ding H Z ， Kar R ， Miao Z X ， et al . A novel design for switchable grid-following and grid-forming control ［J］. IEEE Transactions on Sustainable Energy ， 2025 ， 16 （ 2 ）： 1301 - 1314 .

Gao X ， Zhou D ， Anvari-Moghaddam A ， et al . Seamless switching method between grid-following and grid-forming control for renewable energy conversion systems ［J］. IEEE Transactions on Industry Applications ， 2025 ， 61 （ 1 ）： 597 - 606 .

李飞，王艺潮，张兴，等 . 一种具有频率支撑功能的MPPT控制策略［J］. 太阳能学报， 2020 ， 41 （ 8 ）： 160 - 166 .

Li Fei ， Wang Yichao ， Zhang Xing ， et al . A mppt control strategy for photovoltaic inverter with frequency support ［J］. Acta Energiae Solaris Sinica ， 2020 ， 41 （ 8 ）： 160 - 166 .

Khayat Y ， Golestan S ， Guerrero J M ， et al . DC-link voltage control aided for the inertial support during severe faults in weak grids ［J］. IEEE Journal of Emerging and Selected Topics in Power Electronics ， 2021 ， 9 （ 6 ）： 7296 - 7305 .

Moutevelis D ， Roldan-Perez J ， Jankovic N ， et al . Recursive secondary controller for voltage profile improvement based on primary virtual admittance control ［J］. IEEE Transactions on Smart Grid ， 2023 ， 14 （ 6 ）： 4296 - 4311 .

Leon J D V ， Tarraso A ， Candela J I ， et al . Grid-forming controller based on virtual admittance for power converters working in weak grids ［J］. IEEE Journal of Emerging and Selected Topics in Industrial Electronics ， 2023 ， 4 （ 3 ）： 791 - 801 .

邱晓燕，林号缙，周毅，等 . 基于混合同步控制的构网型逆变器并网系统小扰动稳定性分析［J］. 电力自动化设备， 2023 ， 43 （ 9 ）： 172 - 178 .

Qiu Xiaoyan ， Lin Haojin ， Zhou Yi ， et al . Study on small-signal stability of grid-connected grid-forming inverter system based on hybrid-synchronous control ［J］. Electric Power Automation Equipment ， 2023 ， 43 （ 9 ）： 172 - 178 .

Liu P Y ， Xie X R ， Shair J . Adaptive hybrid grid-forming and grid-following control of IBRs with enhanced small-signal stability under varying SCRs ［J］. IEEE Transactions on Power Electronics ， 2024 ， 39 （ 6 ）： 6603 - 6607 .

苏开元，刘朋印，殷波，等 . 适应短路比与惯量变化的直驱风电机组跟-构网融合控制策略及功率支撑特性［J］. 中国电机工程学报， 2025 ， 45 （ 15 ）： 5798 - 5809 .

Su Kaiyuan ， Liu Pengyin ， Yin Bo ， et al . GFL-GFM hybrid control strategy and power support characteristics for PMSG-based wind turbines adapted to variations in short circuit ratio and inertia ［J］. Proceedings of the CSEE ， 2025 ， 45 （ 15 ）： 5798 - 5809 .

Lima L A M ， Watanabe E H . Hybrid control scheme for VSC presenting both grid-forming and grid-following capabilities ［J］. IEEE Transactions on Power Delivery ， 2022 ， 37 （ 6 ）： 4570 - 4581 .

Han F ， Zhang X ， Li M . Hybrid-mode control for grid-connected inverters and characteristics comparison with current-source mode and voltage-source mode ［J］. International Journal of Electrical Power & Energy Systems ， 2025 ， 170 ： 110911 .

Han F ， Zhang X ， Li M ， et al . Stability control for grid-connected inverters based on hybrid-mode of grid-following and grid-forming ［J］. IEEE Transactions on Industrial Electronics ， 2024 ， 71 （ 9 ）： 10750 - 10760 .

林鸿彬，葛平娟，徐海亮，等 . 异构逆变器并联系统改进Gershgorin圆稳定性判据及其多维谐振特性分析［J］. 电工技术学报， 2024 ， 39 （ 8 ）： 2265 - 2280 .

Lin Hongbin ， Ge Pingjuan ， Xu Hailiang ， et al . Improved gershgorin-circle stability criterion and multi-dimensional resonance characteristics analysis for heterogeneous inverter paralleled system ［J］. Transactions of China Electrotechnical Society ， 2024 ， 39 （ 8 ）： 2265 - 2280 .

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