Adaptive Mitigation Control for Wideband Oscillations of Offshore Wind Farms With MMC-HVDC System

IF 6.9 2区工程技术 Q2 ENERGY & FUELS

CSEE Journal of Power and Energy Systems Pub Date : 2023-09-08 DOI:10.17775/CSEEJPES.2021.06530

Yiming Rao;Jing Lyu;Yifan Wang;Xu Cai

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引用次数: 0

Abstract

With offshore becoming the main battlefield of wind power generation, modular multilevel converter-based high-voltage DC (MMC-HVDC) transmission technology has become an ideal solution for offshore wind power integration and received rapid development. However, wideband oscillation events have seriously threatened stable operation of power systems. By far, existing oscillation mitigation methods are usually designed for specific oscillation cases and are not capable of mitigating wideband oscillations. In order to mitigate various oscillations adaptively, this article proposes an adaptive wideband oscillation mitigation control for MMC-HVDC system connected to offshore wind farms. Analytical wideband impedance models of the wind farm side MMC (WFMMC) and offshore wind farm composed of permanent-magnetic synchronous generator-based wind turbine generators (PMSG-WTGs) are derived, respectively, which are verified by measured impedances from time-domain simulations. Then, a wideband oscillation mechanism is revealed by impedance-frequency characteristics. On this basis, an adaptive wide band oscillation mitigation control is proposed, and its working principle as well as implementation process are elaborated. Case studies of a sub-/super-synchronous oscillation (SSO) event and a high-frequency oscillation (HFO) event of an offshore wind farm with MMC-HVDC system are carried out to verify effectiveness of the proposed adaptive wideband oscillation mitigation control.

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来源期刊

CSEE Journal of Power and Energy Systems Energy-Energy (all)

CiteScore

11.80

自引率

12.70%

发文量

389

审稿时长

26 weeks

期刊介绍： The CSEE Journal of Power and Energy Systems (JPES) is an international bimonthly journal published by the Chinese Society for Electrical Engineering (CSEE) in collaboration with CEPRI (China Electric Power Research Institute) and IEEE (The Institute of Electrical and Electronics Engineers) Inc. Indexed by SCI, Scopus, INSPEC, CSAD (Chinese Science Abstracts Database), DOAJ, and ProQuest, it serves as a platform for reporting cutting-edge theories, methods, technologies, and applications shaping the development of power systems in energy transition. The journal offers authors an international platform to enhance the reach and impact of their contributions.