Research Interests：

• Application of Power Electronics in Renewable Energy Generation and Modern Power Systems

• Microgrid and Multi-Converter Coordinated Control

• Microgrid Interconnection and Flexible Transferring Technology

Projects：

• Autonomous Coordinated Control and Active Low-frequency-oscillation Suppression Method of Grid-forming Renewable Energy Sources

  • Supported by China Postdoctoral Science Foundation     [Principal Investigator]

  • Supported by Delta Power Electronics Science and Education Development Program     [Principal Investigator]

• Voltage and Power Regulation for New Offshore Wind Power Collection and Transmission System

  • Supported by National Science and Technology Major Project on Smart Grid     [Principal Investigator]

• Grid-forming Control and Parallel Operation of DFIG Wind Turbines

  • Supported by Mingyang Smart Energy Group     [Principal Investigator]

• Key Technologies for Grid-forming Control of Energy Storage Converters

  • Supported by Actionpower     [Principal Investigator]

• Coordination Control Technology for Flexible DC and AC Distribution Systems under Different Scenarios

  • Supported by National Key Research and Development Program of China     [Researcher]

• Basic Theories and Key Technologies of Coordinated Control and Stability in Multi-converter Power Systems

  • Supported by National Natural Science Foundation of China     [Researcher]

• Flexible Transfer Converter Enabling Autonomous Control and Asynchronous Grid-connection of Microgrid

  • Supported by National Natural Science Foundation of China     [Researcher]

• Control Strategies and Stability Analysis of Microgrids Based on Multiple Distributed Generations

  • Supported by Delta Power Electronics Science and Education Development Program     [Researcher]

• Decentralized Solution on Coordinated Control of Parallel High Power Inverters

  • Supported by KEHUA TECH     [Researcher]

Representative Work：

• Ronghui An, Jinjun Liu, Zeng Liu, Zhaoqi Song. Flexible Transfer Converters Enabling Autonomous Control and Power Dispatch of Microgrids, IEEE Transactions on Power Electronics, 2022, 37(11): 13767-13781

• Ronghui An, Zeng Liu, Jinjun Liu. Successive-Approximation-Based Virtual Impedance Tuning Method for Accurate Reactive Power Sharing in Islanded Microgrids, IEEE Transactions on Power Electronics, 2020, 36(1): 87-102

• Ronghui An, Zeng Liu, Jinjun Liu, Baojin Liu. A Comprehensive Solution to Decentralized Coordinative Control of Distributed Generations in Islanded Microgrid Based on Dual-Frequency Droop, IEEE Transactions on Power Electronics, 2022, 37(3): 3583-3598

• Baojin Liu, Zeng Liu, Jinjun Liu, Ronghui An, Haoyang Zheng, Yidong Shi. An Adaptive Virtual Impedance Control Scheme Based on Small-AC-Signal Injection for Unbalanced and Harmonic Power Sharing in Islanded Microgrids, IEEE Transactions on Power Electronics, 2019, 34(12):12333-12355

• Haoyang Zheng, Zeng Liu, Ronghui An, Jinjun Liu, Kaiwen Feng, Yiming Tu. Discrete Multiple Second-Order Generalized Integrator With Low-Pass Filters and Frequency-Locked Loop for DC Rejection, IEEE Transactions on Power Electronics, 2022, 37(10): 11814-11827

Awards：

• 2023 Top Prize of the Science and Technology Progress Award by the China Power Supply Society