Impedance-Based Method for Predictive Stability Assessment

Author:

Schräder JohannesORCID,Kaiser Sebastian,Jordan Michael,Schulz DetlefORCID

Abstract

Impedance-based analysis methods enable a more specific and earlier foundation for assessing harmonic stability in decentralized converter-based power plants compared to the conventional compliance testing in the grid connection process. Essentially, they can be implemented as black-box model approaches without the necessity to disclose internal control models. Initially, only knowledge of the input impedances of the planned grid connection point and the planned PV system is required for application. For this purpose, the method of impedance spectroscopy for inverters has already been developed as a means to determine the effective impedance profile and the internal harmonic sources of inverters, allowing for the description of the frequency-dependent behavior of individual units. The time- and frequency-dependent grid impedance at the grid connection point (GCP) has also been successfully measured in several campaigns on medium and low-voltage grids. Through the coordinated application of both measurement methods, a predictive harmonic assessment is intended in the future, ensuring high planning reliability and grid quality even in grids with a high penetration of power electronics-coupled systems. This paper provides an overview of the current state of research on impedance-based stability criteria and presents measurement methods for practical implementation. Furthermore, it outlines remaining open questions until application in the field.

Funder

Bundesministerium für Wirtschaft und Klimaschutz

Publisher

TIB Open Publishing

Reference49 articles.

1. J. Gartner, N. A. Müller und B. Engel, „Impact of Harmonics above the 50th Order on the Industrial Grid due to Electric Vehicles in an Employee Parking Lot,“ in ETG Congress 2023, Kassel, 2023.

2. ENTSO-E, „High Penetration of Power Electronic Interfaced Power Sources and the Potential Contribution of Grid Forming Converters, Technical Report,“ ENTSO-E Technical Group on High Penetration of Power Electronic Interfaced Powser Sources, 2020.

3. BMWK, „Roadmap Systemstabilität, Fahrplan zur Erreichung eines sicheren und robusten Betriebs des zukünftigen Stromversorgungssystems mit 100 % erneuerbaren Energien,“ Bundesministerium für Wirtschaft und Klimaschutz (BMWK), Berlin, 2023.

4. Projektkonsortium Netzharmonie, „Optimierte Effizienz und Netzverträglichkeit bei der Integration von Erzeugungsanlagen aus Oberschwingungssicht: Abschlussbericht für das Projekt NetzHarmonie,“ FGW, Berlin, 2019. DOI: https://doi.org/10.2314/KXP:1671617738

5. J. Schräder, M. F. Meyer, P. Möbius und D. Schulz, „Optimierte Netzanschlussbewertung von Erneuerbaren Energieanlagen durch die Bewertung von Oberschwingungsemissionenmittels zeit- und frequenzabhängiger Netzimpedanzmessungen,“ in Hamburger Beiträge zum Technischen Klimaschutz 3, Hamburg, 2021. DOI: https://doi.org/10.24405/13957

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3