Validation of Wind Turbine Models Based on Test Bench Measurements: A System for Theoretical Representation of the Grid Replica

IF 1.3 4区工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY

Wind and Structures Pub Date : 2023-07-26 DOI:10.3390/wind3030018

A. Frehn, Jens Sdun, R. Grune, A. Monti

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Abstract

In recent years, nacelle test benches for wind turbines have been developed internationally. New standards are currently being developed that explicitly refer to the measurement of the electrical properties of wind turbines on these test benches. Thus, they are suitable for measuring the electrical properties required for certification. Another part of the certification is the creation and validation of suitable models of the wind turbine, which are used for stability analyses of the utility grid. Validation requires a suitable model of grid replication on the test benches, which is not yet covered by any applicable standard. Such models should be as simplified a representation of the artificial grid replication as possible to ensure that they are accessible to certification bodies. A model of the grid emulator installed at the CWD of RWTH Aachen University, which was validated with real measurement data, serves as a reference. A step-by-step reduction of the model’s depth up to the system’s technical representation is followed by a model evaluation with respect to the level of detail and an analysis of time and frequency. The evaluation shows that even a highly simplified model consisting of a reference voltage and an impedance replica meets the requirements for the validation of wind turbine models according to IEC 61400-27-2.

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基于试验台测量的风力发电机模型验证:一种网格模型的理论表示系统

近年来，国际上开发了风力发电机组机舱试验台。目前正在制定新的标准，明确提到在这些试验台上测量风力涡轮机的电性能。因此，它们适用于测量认证所需的电气性能。认证的另一部分是创建和验证合适的风力涡轮机模型，这些模型用于公用电网的稳定性分析。验证需要在测试台上有一个合适的网格复制模型，这还没有被任何适用的标准所涵盖。这些模型应尽可能简化为人工网格复制的表示，以确保认证机构能够访问它们。在亚琛工业大学CWD安装了网格仿真器模型，并用实测数据进行了验证，可作为参考。逐步减少模型的深度直到系统的技术表示，然后是关于细节水平的模型评估以及时间和频率的分析。评估表明，即使是由参考电压和阻抗副本组成的高度简化的模型也符合IEC 61400-27-2对风力涡轮机模型验证的要求。

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

Wind and Structures 工程技术-工程：土木

CiteScore

2.70

自引率

18.80%

发文量

审稿时长

>12 weeks

期刊介绍： The WIND AND STRUCTURES, An International Journal, aims at: - Major publication channel for research in the general area of wind and structural engineering, - Wider distribution at more affordable subscription rates; - Faster reviewing and publication for manuscripts submitted. The main theme of the Journal is the wind effects on structures. Areas covered by the journal include: Wind loads and structural response, Bluff-body aerodynamics, Computational method, Wind tunnel modeling, Local wind environment, Codes and regulations, Wind effects on large scale structures.