Topic I: Grid-Forming/-Following Control and Stability

Journal Papers

• W. Schittek, N. Wiese, C. Hachmann, X. He, J. Heid, J. Ferry, and M. Braun, “How to Tailor Power-Electronic Inertia to the Constraints of its Resource,” TechRxiv preprint, 2025, link.
• J. Miller, M. A. Desai, X. He, R. S. Smith, and G. Hug, “Network-Independent Incremental Passivity Conditions for Grid-Forming Inverter Control,” arXiv preprint arXiv:2109.08383, 2025, link.
• K. Zhuang, H. Xin, V. Häberle, X. He, L. Huang, and F. Dörfler, “Quantifying Grid-Forming Behavior: Bridging Device-level Dynamics and System-Level Stability,” arXiv preprint arXiv:2503.24152, 2025, link.
• V. Häberle, X. He, L. Huang, F. Dörfler, and S. Low, “Decentralized Parametric Stability Certificates for Grid-Forming Converter Control,” arXiv preprint arXiv:2503.05403, 2025, link.
• X. He, M. A. Desai, L. Huang, and F. Dörfler, “Cross-forming control and fault current limiting for grid-forming inverters,” IEEE Trans Power Electron., vol. 40, no. 3, pp. 3980-4007, 2025, link.
• X. He, L. Huang, I. Subotić, V. Häberle, and F. Dörfler, “Quantitative stability conditions for grid-forming converters with complex droop control,” IEEE Trans. Power Electron., vol. 39, no. 9, pp. 10834–10852, 2024, link.
• X. He and F. Dörfler, “Passivity and decentralized stability conditions for grid-forming converters,” IEEE Trans. Power Syst., vol. 39, no. 3, pp. 5447–5450, 2024, link.
• M. A. Desai, X. He, L. Huang, and F. Dörfler, “Saturation-informed current-limiting control for grid-forming converters,” Electr. Power Syst. Res., vol. 234, p. 110746, 2024, link.
• X. He, V. Häberle, and F. Dörfler, “Complex-frequency synchronization of converter-based power systems,” IEEE Trans. Control Netw. Syst., in press, 2024, link.
• X. He, V. Häberle, I. Subotić, and F. Dörfler, “Nonlinear stability of complex droop control in converter-based power systems,” IEEE Control Syst. Lett., vol. 7, pp. 1327–1332, 2023, link.
• H. Geng, C. He, Y. Liu, X. He, and M. Li, “Overview on transient synchronization stability of renewable-rich power systems,” High Voltage Engineering, vol. 48, no. 9, pp. 3367–3383, 2022, link. (In Chinese)
• C. He, X. He, H. Geng, H. Sun, and S. Xu, “Transient stability of low-inertia power systems with inverter-based generation,” IEEE Trans. Energy Convers., vol. 37, no. 4, pp. 2903–2912, 2022, link. (Best Paper for the period 2021-2022)
• X. He, S. Pan, and H. Geng, “Transient stability of hybrid power systems dominated by different types of grid-forming devices,” IEEE Trans. Energy Convers., vol. 37, no. 2, pp. 868–879, 2022, link.
• X. He, C. He, S. Pan, H. Geng, and F. Liu, “Synchronization instability of inverter-based generation during asymmetrical grid faults,” IEEE Trans. Power Syst., vol. 37, no. 2, pp. 1018–1031, 2022, link.
• X. He and H. Geng, “PLL synchronization stability of grid-connected multiconverter systems,” IEEE Trans. Ind. Appl., vol. 58, no. 1, pp. 830–842, 2022, link.
• X. He, H. Geng, J. Xi, and J. M. Guerrero, “Resynchronization analysis and improvement of gridconnected VSCs during grid faults,” IEEE J. Emerg. Sel. Top. Power Electron., vol. 9, no. 1, pp. 438–450, 2021, link.
• X. He and H. Geng, “Transient stability of power systems integrated with inverter-based generation,” IEEE Trans. Power Syst., vol. 36, no. 1, pp. 553–556, 2021, link.
• X. He, H. Geng, R. Li, and B. C. Pal, “Transient stability analysis and enhancement of renewable energy conversion system during LVRT,” IEEE Trans. Sustain. Energy, vol. 11, no. 3, pp. 1612–1623, 2020, link.
• X. He, H. Geng, and S. Ma, “Transient stability analysis of grid-tied converters considering PLL’s nonlinearity,” CPSS Trans. Power Electron. Appl., vol. 4, no. 1, pp. 40–49, 2019, link.
• X. He, H. Geng, and G. Yang, “Reinvestigation of single-phase FLLs,” IEEE Access, vol. 7, pp. 13178–13188, 2019, link.
• X. He, H. Geng, and G. Yang, “A generalized design framework of notch filter based frequency-locked loop for three-phase grid voltage,” IEEE Trans. Ind. Electron., vol. 65, no. 9, pp. 7072–7084, 2018, link.

Conference Papers

• H. Liu, X. He, H. Qing, Y. Chen and H. Geng, “Stability-Constrained GFM/GFL Capacity Ratio: Modeling and Evaluation,” in 2025 IEEE Industry Applications Society Annual Meeting (IAS 2025), 2025, pp. 1-6, link.
• Z. Sun, S. Jiang, J. Zhang, M. Zhang, X. He and H. Geng, “Decentralized Stability Analysis and Region of Attraction Estimation for Multi-Bus DC Microgrids,” in 2025 IEEE Industry Applications Society Annual Meeting (IAS 2025), 2025, pp. 1-6, link.
• C. He, X. He, and H. Geng, “Transient stability of low-inertia power grid with inverter-based generations,” in 10th Renewable Power Generation Conference (RPG 2021), 2021, pp. 91–97, link.
• J. Li, X. He, and H. Geng, “Grid code formulation recommendations on inverter-based generation during asymmetrical grid faults,” in Proc. 10th Renewable Power Generation Conference (RPG 2021), 2021, pp. 289–295, link.
• X. He and H. Geng, “Synchronization stability analysis and enhancement of grid-tied multiconverter systems,” in 2020 IEEE Industry Applications Society Annual Meeting (IAS 2020), 2020, pp. 1–8, link.
• X. He, H. Geng, and G. Yang, “Synchronization stability analysis of grid-tied power converters under severe grid voltage sags,” in 2018 IEEE International Power Electronics and Application Conference and Exposition (PEAC 2018), 2018, pp. 1–6, link. (Excellent Paper Award)

Topic II: Dynamic Ancillary Services of Inverter-Based Resources

Journal Papers

• X. Zhu, H. Geng, H. Qing, G. Ruan and X. He, “Dynamic Virtual Power Plants with Robust Frequency Regulation Capability,” IEEE Trans. Ind. Appl., 2025, link.
• C. Feng, L. Huang, X. He, Y. Wang, F. Dörfler, and C. Kang, “Hybrid Oscillation Damping and Inertia Management for Distributed Energy Resources,” IEEE Trans. Power Syst., 2025, link.
• X. He, J. Duarte, V. Häberle, and F. Dörfler, “Aggregate grid-forming control of distributed energy resources for fast ancillary services,” preprint, 2025, link.
• V. Häberle, X. He, L. Huang, E. Prieto-Araujo, and F. Dörfler, “Optimal dynamic ancillary services provision based on local power grid perception,” IEEE Trans. Power Syst, in press, 2024, link.
• V. Häberle, L. Huang, X. He, E. Prieto-Araujo, and F. Dörfler, “Dynamic ancillary services: From grid codes to transfer function-based converter control,” Electr. Power Syst. Res., vol. 234, p. 110760, 2024, link.
• V. Häberle, A. Tayyebi, X. He, E. Prieto-Araujo, and F. Dörfler, “Grid-forming and spatially distributed control design of dynamic virtual power plants,” IEEE Trans. Smart Grid, vol. 15, no. 2, pp. 1761–1777, 2024, link.

Conference Papers

• R. Domingo-Enrich, X. He, V. Häberle, and F. Dörfler, “Dynamic complex-frequency control of grid-forming converters,” in 50th Annual Conference of the IEEE Industrial Electronics Society (IECON 2024), link.
• V. Häberle, L. Huang, X. He, R. S. Smith, and F. Dörfler, “MIMO grid impedance identification of three-phase power systems: Parametric vs. nonparametric approaches,” in 62nd IEEE Conference on Decision and Control, 2023, link.
• J. Xi, H. Geng, and X. He, “Adaptive VSG control scheme for large scale wind farms to improve frequency response characteristics,” in 2019 IEEE Industry Applications Society Annual Meeting, 2019, pp. 1–7, link.

Topic III: Modeling of Renewable Energy Generation

Conference Papers

• X. He, H. Geng, and G. Mu, “Modeling of wind turbine generators for power system stability studies: A review,” Renew. Sust. Energ. Rev., vol. 143, p. 110865, 2021, link.
• X. He, H. Geng, and G. Yang, “Mode clustering based dynamic equivalent modeling of wind farm for small-signal stability analysis,” arXiv preprint arXiv:2109.08383, 2021, link.
• X. He, H. Geng, G. Yang, X. Zou, and Y. Li, “Equivalent modelling of wind farm for small-signal stability analysis in weak power system,” J. Eng., vol. 2017, no. 13, pp. 1388–1393, 2017, link.

Conference Papers

• X. Jiao, X. He, H. Geng, and B. Ren, “Hybrid average-value modelling of DFIG-based wind energy conversion systems,” in 10th Renewable Power Generation Conference (RPG 2021), vol. 2021, 2021, pp. 193–198, link.
• X. He, H. Geng, and G. Yang, “Dynamic equivalent modeling of wind power plants for various timescale small signal stability analyses,” in 2019 IEEE Power and Energy Society General Meeting (PESGM), 2019, pp. 1–5, link.
• X. He and H. Geng, “An overview on wind farm modelling for power system stability studies,” in 8th Renewable Power Generation Conference (RPG 2019), 2019, pp. 1–8, link.

Topic IV: HVDC Integration of Renewable Energy Generation

Conference Papers

• S. Zhao, X. He, C. Lv, Y. Zhou, S. Xu, X. Liu, and H. Geng, “Black start-up and coordinated control strategy of standalone doubly-fed wind farms connected to LCC-HVDC,” Power System and Clean Energy, vol. 37, no. 7, pp. 87–96,135, 2021, link. (In Chinese)
• X. He, G. Hua, Y. Geng, and Z. Xin, “Startup and integration control strategy of DFIG based isolated wind farm connected with LCC-HVDC,” Autom. of Elec. Power Syst., vol. 43, no. 9, pp. 99–107, 2019, link. (In Chinese)
• X. He, H. Geng, G. Yang, and X. Zou, “Coordinated control for large-scale wind farms with LCC-HVDC integration,” Energies, vol. 11, no. 9, 2018, link.

Conference Papers

• X. He, H. Geng, G. Yang, and X. Zou, “VSG control for DFIG-based islanded wind farm with LCC-HVDC integration,” in 2018 IEEE Power and Energy Society General Meeting (PESGM), 2018, pp. 1–5, link.