Opportunities and Challenges in the Mediterranean Region with Grid Forming Control for HVDC Systems

2023 AEIT HVDC International Conference (AEIT HVDC) Pub Date : 2023-05-25 DOI:10.1109/AEITHVDC58550.2023.10179078

Arman Derviškadić, Alberto Persico, Emir Isabegovic, A. Thorslund

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Abstract

The progressive displacement of conventional generation towards renewable energy sources requires restoring an adequate capacity of regulating power to ensure reliable operation of power systems. Power systems with large shares of converter-interfaced renewables are characterized by low grid inertia due to the lack of frequency containment provided by synchronous generators. High Voltage Direct Current (HVDC) Transmission Systems based on Voltage Source Converter (VSC) technology are considered valuable assets to improve frequency regulation capacity levels. HVDC converter stations based on VSC technology are typically able to operate in either grid forming or grid-following modes. The aim of this paper is to highlight the opportunities and challenges of grid forming control for HVDC applications. A special focus will be on contradictory grid forming control performance requirements from European Transmission System Operators (TSOs). The impacts of these requirements on AC grid, HVDC performance and hardware are discussed.

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地中海地区高压直流系统成网控制的机遇与挑战

传统发电逐步向可再生能源转移，需要恢复足够的调节能力，以确保电力系统的可靠运行。具有大量转换器接口可再生能源的电力系统的特点是，由于缺乏同步发电机提供的频率控制，电网惯性较低。基于电压源变换器(VSC)技术的高压直流输电系统被认为是提高频率调节能力水平的宝贵资产。基于VSC技术的高压直流换流站通常可以在电网形成或电网跟随模式下运行。本文的目的是强调高压直流输电应用中电网形成控制的机遇和挑战。特别关注欧洲输电系统运营商(TSOs)对相互矛盾的电网形成控制性能要求。讨论了这些要求对交流电网、高压直流性能和硬件的影响。

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2023 AEIT HVDC International Conference (AEIT HVDC)

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