Impacts of superconducting fault current limiters on distance protection for grid-connected photovoltaic plants

IF 7.1 2区工程技术 Q1 ENERGY & FUELS

Sustainable Energy Technologies and Assessments Pub Date : 2025-02-01 DOI:10.1016/j.seta.2024.104165

Chao Li , Qi Wu , Rui Mu , Ying Xin , Bin Li

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引用次数: 0

Abstract

Photovoltaic (PV) has become a crucial support for energy transformation and the development of clean energy. Superconducting fault current limiters (SFCLs), with their superconducting and quench characteristics, are considered to be effective in limiting the fault currents and enhancing the low-voltage ride-through (LVRT) capability of PV plants. However, the current-limiting impedance of SFCLs will affect the relay protection for PV plants, particularly their distance protection. In this work, investigations are carried out to explore the impacts of SFCLs on the distance protection for PV plants, revealing that SFCLs may cause maloperation of distance protection under asymmetric short-circuit faults. An improved protection method is designed to eliminate the negative impacts of SFCLs and precisely identify short-circuit faults. A model of the grid-connected PV plant with SFCLs is constructed using the PSCAD/EMTDC software package, and the simulation results validate the accuracy of the improved protection method, serving as a reference for the application of SFCLs in PV plants.

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来源期刊

Sustainable Energy Technologies and Assessments Energy-Renewable Energy, Sustainability and the Environment

CiteScore

12.70

自引率

12.50%

发文量

1091

期刊介绍： Encouraging a transition to a sustainable energy future is imperative for our world. Technologies that enable this shift in various sectors like transportation, heating, and power systems are of utmost importance. Sustainable Energy Technologies and Assessments welcomes papers focusing on a range of aspects and levels of technological advancements in energy generation and utilization. The aim is to reduce the negative environmental impact associated with energy production and consumption, spanning from laboratory experiments to real-world applications in the commercial sector.