Offshore-Wind-Power Integrated System Sub/Super-Synchronous Oscillation Adaptive Mitigating Method and its HIL Tests

• Published in: Dianli jianshe Vol. 46; no. 5; pp. 150 - 158
• Main Author: ZENG Zhijie, HUANG Ting, LI Haozhi, ZHANG Yingling, BAO Guojun, XIE Xiaorong
• Format: Journal Article
• Language: Chinese
• Published: Editorial Department of Electric Power Construction 01.05.2025
• Subjects: offshore wind power|sub/super-synchronous oscillation|adaptive mitigation|hardware-in-loop test
• ISSN: 1000-7229
• DOI: 10.12204/j.issn.1000-7229.2025.05.013

[Objective] This study addresses the emerging oscillation risks posed by power electronic converter-dominated control systems in large-scale integration of offshore wind power. Specifically， it aims to enhance the operational stability of AC transmission systems by focusing on sub/super-synchronous oscillation mitigation in offshore wind farms connected via AC transmission systems. To address the limitations of conventional mitigation measures， such as the necessity for extensive upgrades in wind turbine generator and insufficient parameter adaptability of system parameters， an adaptive oscillation mitigation strategy is proposed. [Methods] The proposed method adopts a “real-time measurement-identification-control” framework. The measured data provide observable input signals for identifying the system sub/super-synchronous oscillation modes， followed by the real-time oscillation characterization of oscillation dynamics. Based on this identification， the control parameters are dynamically tuned， and the contr