单桩式海上风力涡轮机实时混合模型试验延迟补偿方法的开发与验证

IF 4.3 2区 工程技术 Q1 ENGINEERING, OCEAN
Wei Shi , Jie Fu , Zhengru Ren , Madjid Karimirad , Huimeng Zhou , Xin Li
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引用次数: 0

摘要

实时混合模型试验(RTHM)善于解决传统单桩式海上风力涡轮机(OWT)模型试验方法固有的尺度矛盾、流体力学试验设施中风模型缺乏保真度以及空间限制等问题,因此成为进行单桩式海上风力涡轮机物理模型试验的有效途径。这种方法需要使用加载装置或振动台再现空气动力载荷或平台运动。加载装置的物理属性和系统内信号传输过程中的时间延迟会导致误差累积,并有可能影响整个系统的稳定性。此外,采用力控制加载的混合模型测试系统的时间延迟补偿算法很容易产生过多噪声,导致系统偏离。因此,时间延迟已成为 RTHM 测试中的一项技术挑战。为解决这一问题,本文在开发自适应补偿算法的同时,还开发了二阶和三阶多项式外推算法。自适应补偿算法采用最小二乘法来确定加载系统的参数,使其能够解决由加载系统的非线性和模型物理特性变化引起的实验系统时间延迟的变化。通过数值模拟验证了各种算法的时间延迟补偿的可行性和效果。结果表明,自适应补偿算法在精度和补偿效果方面超过了二阶和三阶多项式外推补偿算法。为了验证自适应补偿算法的适用性,进行了一次 RTHM 试验。在转子推力(RotThrust)和塔顶位移方面,最大和最小同步误差分别平均减少了约 5% 和 9%。这凸显了延迟补偿算法在实际应用中的功效,显著减少了实验系统中的时间延迟误差。自适应补偿算法不断调整和更新参数,增强了补偿过程对时变系统的适应性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Development and verification of real-time hybrid model test delay compensation method for monopile-type offshore wind turbines

The real-time hybrid model (RTHM) test is adept at addressing the scale contradiction, the lack of fidelity in wind modelling in hydrodynamic testing facilities and spatial constraints inherent in conventional monopile-type offshore wind turbine (OWT) model testing methods, thus emerging as an effective avenue for conducting physical model tests of Monopile-type OWTs. This method entails the reproduction of aerodynamic loads or platform motions using loading device or vibration tables. Time delays in the physical attributes of the loading device and signal transmission processes within the system can result in error accumulation, with the potential to impact overall system stability. Moreover, time delay compensation algorithms for hybrid model test systems with force control loading can easily generate excessive noise, leading to system divergence. As a result, time delay has emerged as a technical challenge in the RTHM test. To address this issue, this paper has developed second-order and third-order polynomial extrapolation algorithms, alongside an adaptive compensation algorithm. The adaptive compensation algorithm employs the least squares method to identify parameters of the loading system, enabling it to address variations in the time delay of the experimental system caused by the nonlinearity of the loading system and changes in the physical properties of the model. The feasibility and effects of time delay compensation for various algorithms are validated through numerical simulation. Results indicate that the adaptive compensation algorithm surpasses second and third-order polynomial extrapolation compensation algorithms in terms of accuracy and compensation effectiveness. To validate the applicability of the adaptive compensation algorithm, a RTHM test was conducted. Across rotor thrust force (RotThrust) and tower top displacement, there was an average reduction of approximately 5 % and 9 % in the maximum and minimum synchronization errors, respectively. This highlights the efficacy of the delay compensation algorithm in practical applications, notably diminishing time delay errors within the experimental system. The adaptive compensation algorithm continuously adjusts and updates parameters, enhancing the adaptability of the compensation process to time-varying systems.

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来源期刊
Applied Ocean Research
Applied Ocean Research 地学-工程:大洋
CiteScore
8.70
自引率
7.00%
发文量
316
审稿时长
59 days
期刊介绍: The aim of Applied Ocean Research is to encourage the submission of papers that advance the state of knowledge in a range of topics relevant to ocean engineering.
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