Analysis of non-uniform grid-forming control techniques for the HVDC connection of renewable energy

IF 5.4 3区材料科学 Q2 CHEMISTRY, PHYSICAL

ACS Applied Energy Materials Pub Date : 2024-09-20 DOI:10.1016/j.matcom.2024.09.014

Adrián Beneit-Barajas, Patricia Penades-Huesca, Jaime Martínez-Turégano

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Abstract

Grid-forming control techniques are required to achieve a high penetration of power electronics-based renewable energy sources for decarbonized electric systems. However, different grid-forming control strategies can operate in the same grid, and grid stability shall be warranted. This paper analyses the use of different grid-forming control strategies for diode rectifier-based wind power plants. The analysed grid-forming controllers are the well-known droop control, an advanced droop control, and the virtual synchronous machine control. The controllers’ analysis validates the three grid-forming controllers’ interoperability, identifying each control parameter’s contribution to the stability of each system state variable. Furthermore, the analysis allows a better tuning of the control parameters. Additionally, a fault-ride-through strategy that improves the system restoration after faults is proposed and validated. The proposed fault-ride-through strategy achieves a soft restoration of the active power.

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可再生能源高压直流连接的非均匀成网控制技术分析

要实现基于电力电子技术的可再生能源的高渗透率，实现电力系统的去碳化，就必须采用电网形成控制技术。然而，不同的电网形成控制策略可以在同一电网中运行，电网稳定性应得到保证。本文分析了基于二极管整流器的风力发电厂使用不同并网控制策略的情况。所分析的电网形成控制器包括众所周知的下垂控制、高级下垂控制和虚拟同步机控制。控制器分析验证了三种电网形成控制器的互操作性，确定了每个控制参数对每个系统状态变量稳定性的贡献。此外，分析还能更好地调整控制参数。此外，还提出并验证了一种故障穿越策略，可改善故障后的系统恢复。所提出的故障穿越策略实现了有功功率的软恢复。

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来源期刊

ACS Applied Energy Materials Materials Science-Materials Chemistry

CiteScore

10.30

自引率

6.20%

发文量

1368

期刊介绍： ACS Applied Energy Materials is an interdisciplinary journal publishing original research covering all aspects of materials, engineering, chemistry, physics and biology relevant to energy conversion and storage. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important energy applications.