EMC Issues in High-Power Grid-Connected Photovoltaic Plants: An Update After 15 Years

IF 2 3区计算机科学 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Electromagnetic Compatibility Pub Date : 2024-09-05 DOI:10.1109/TEMC.2024.3440848

Erika Stracqualursi;Gianfranco Di Lorenzo;Luigi Calcara;Rodolfo Araneo

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Abstract

This article revises and updates the electromagnetic compatibility (EMC) challenges commonly encountered in utility-scale grid-connected photovoltaic (PV) systems in light of modern trends. This article examines the issues related to the conductive and radiated radio-frequency disturbances, in the range from 150 kHz to 1 GHz, of multi-MWp PV plants as designed nowadays, with high-power bifacial modules, single-axis trackers, and decentralized high-density inverters. The main features include the extensive dc and ac cabling, the capacitance toward the Earth of the PV source, the common-mode disturbance caused by inverters, the effect of safety and functional grounding, the galvanic isolation provided by step-up power transformers, and the presence of resonant circuits for common-mode leakage currents. Measurements in situ for both conducted and radiated disturbances in a 19.87 MWp plant placed in Ferrandina, South Italy, are presented and discussed. Guidelines for achieving an EMC functional safety by design are provided, raising from the analysis of the measured data.

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大功率并网光伏电站的 EMC 问题：15 年后的更新

本文根据现代趋势，对公用事业级并网光伏（PV）系统通常遇到的电磁兼容性（EMC）挑战进行了修订和更新。本文探讨了当今设计的多兆瓦光伏电站（采用大功率双面组件、单轴跟踪器和分散式高密度逆变器）在 150 kHz 至 1 GHz 范围内的传导和辐射射频干扰相关问题。其主要特点包括大量直流和交流电缆、光伏源对地电容、逆变器引起的共模干扰、安全和功能性接地的影响、升压电力变压器提供的电隔离以及共模泄漏电流谐振电路的存在。本文介绍并讨论了在意大利南部费兰迪纳的一个 19.87 兆瓦电站中对传导和辐射干扰的现场测量结果。通过对测量数据的分析，提出了通过设计实现电磁兼容功能安全的指导原则。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Electromagnetic Compatibility 工程技术-电信学

CiteScore

4.80

自引率

19.00%

发文量

235

审稿时长

2.3 months

期刊介绍： IEEE Transactions on Electromagnetic Compatibility publishes original and significant contributions related to all disciplines of electromagnetic compatibility (EMC) and relevant methods to predict, assess and prevent electromagnetic interference (EMI) and increase device/product immunity. The scope of the publication includes, but is not limited to Electromagnetic Environments; Interference Control; EMC and EMI Modeling; High Power Electromagnetics; EMC Standards, Methods of EMC Measurements; Computational Electromagnetics and Signal and Power Integrity, as applied or directly related to Electromagnetic Compatibility problems; Transmission Lines; Electrostatic Discharge and Lightning Effects; EMC in Wireless and Optical Technologies; EMC in Printed Circuit Board and System Design.