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ORIGINAL RESEARCH article

Front. Energy Res.
Sec. Smart Grids
Volume 12 - 2024 | doi: 10.3389/fenrg.2024.1439210
This article is part of the Research Topic Emerging Technologies for the Construction of Renewable Energy-Dominated Power System View all 28 articles

Droop Control-Based Fast Frequency Support of Wind Power Generation Integrated Grid-Forming VSC-HVDC System

Provisionally accepted
Qian Chen Qian Chen 1Gang Shi Gang Shi 2*Yi Lu Yi Lu 1Peng Qiu Peng Qiu 1Jianqiao Zhou Jianqiao Zhou 2Renxin Yang Renxin Yang 2Jianwen Zhang Jianwen Zhang 2
  • 1 Electric Power Research Institute of State Grid Zhejiang Electric Power Corporation, Hangzhou, China
  • 2 Shanghai Jiao Tong University, Shanghai, China

The final, formatted version of the article will be published soon.

    Current researches mainly focus on the participation of wind farms in primary frequency regulation, including overspeed load shedding control, propeller control and their coordinated control, etc. The frequency support is realized by reserving reserve capacity of wind turbines, but the influence of the dynamic characteristics of maximum power point tracking (MPPT) on the overall frequency regulation characteristics of wind turbines during frequency support is ignored. To this end, firstly, the frequency response model of the system is constructed, and the main factors that affect the frequency dynamic characteristics are revealed. Secondly, the principle of the grid-forming VSC with the function of selfinertial synchronization is introduced, the influence of the dynamic characteristics of MPPT on the frequency regulation characteristics of the wind turbine generator is clarified. Finally, based on the PSCAD/EMTDC electromagnetic transient simulation software platform, the influence of the dynamic characteristics of MPPT on the frequency regulation characteristics are verified by combining the inertia self-synchronous network control technology. The simulation results indicate that with the increase of setting of droop control, the decrease of output power of MPPT becomes large so as to weaken the frequency support capability.

    Keywords: Grid forming VSC, VSC-HVDC, Droop control, fast frequency support, Selfsynchronizing

    Received: 28 May 2024; Accepted: 12 Jul 2024.

    Copyright: © 2024 Chen, Shi, Lu, Qiu, Zhou, Yang and Zhang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Gang Shi, Shanghai Jiao Tong University, Shanghai, China

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