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{"title":"Simultaneous Estimation of Generator Inertia and Damping in Power Systems Using Short-Time Transient Data Considering Primary Frequency Regulation","authors":"Yukai Wang, Akihiko Yokoyama, Jumpei Baba","doi":"10.1002/tee.70088","DOIUrl":null,"url":null,"abstract":"<p>In light of the ongoing advancements in achieving carbon neutrality, the gradual phase-out of power generation utilizing synchronous generators possessing physical inertia from the grid is anticipated. Consequently, the power system will exhibit reduced inertia. To effectively comprehend and address this associated risk, a precise evaluation technique for power system inertia becomes imperative. In this paper, the accuracy of online real-time estimation of inertia and damping based on transient response is improved by polynomial approximation considering the effect brought by the control system represented by the governor. The order of polynomials that are expected to be the optimal choice is also pointed out. The related content is verified in a system using the IEEE NE 10 machine test system. © 2025 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.</p>","PeriodicalId":13435,"journal":{"name":"IEEJ Transactions on Electrical and Electronic Engineering","volume":"20 9","pages":"1510-1522"},"PeriodicalIF":1.1000,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEJ Transactions on Electrical and Electronic Engineering","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/tee.70088","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
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Abstract
In light of the ongoing advancements in achieving carbon neutrality, the gradual phase-out of power generation utilizing synchronous generators possessing physical inertia from the grid is anticipated. Consequently, the power system will exhibit reduced inertia. To effectively comprehend and address this associated risk, a precise evaluation technique for power system inertia becomes imperative. In this paper, the accuracy of online real-time estimation of inertia and damping based on transient response is improved by polynomial approximation considering the effect brought by the control system represented by the governor. The order of polynomials that are expected to be the optimal choice is also pointed out. The related content is verified in a system using the IEEE NE 10 machine test system. © 2025 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.
考虑一次频率调节的电力系统暂态数据同步估计发电机惯量和阻尼
鉴于在实现碳中和方面取得的持续进展，预计将逐步淘汰利用具有电网物理惯性的同步发电机发电。因此，电力系统将表现出较小的惯性。为了有效地理解和解决这一相关风险，一种精确的电力系统惯性评估技术势在必行。考虑到以调速器为代表的控制系统所带来的影响，采用多项式逼近的方法提高了基于暂态响应的在线实时估计惯性和阻尼的精度。并指出了最优选择多项式的阶数。使用IEEE ne10机器测试系统在系统中验证了相关内容。©2025日本电气工程师协会和Wiley期刊有限责任公司。
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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