Research on Optimization of Co-simulation Interface Data Exchange for Offshore Wind Turbine
摘要
针对海上风电机组多学科联合仿真中因通信接口延时与多速率采样引发的仿真精度下降问题
研究了优化接口数据交换技术
以提升气-机-电耦合特性的模拟准确性。提出基于Hermite插值算法的联合仿真接口优化方案
并建立误差数学模型
对比传统零阶保持器(ZOH)与优化接口的误差量级。通过搭建简化的机电联合仿真平台来验证接口性能
并进一步在构建的完整海上风电联合仿真系统中部署优化接口。结果表明:在简化二阶系统中
Hermite插值接口可显著降低仿真误差量级;在完整的机电联合仿真中
采用优化后的接口数据交互方案后
系统保真度显著提升
响应特征更贴近真实工况;Hermite插值外推技术通过优化多学科模型间的数据交互过程
有效解决了联合仿真中的接口失真问题。
Abstract
Aiming at the problem of decreased simulation accuracy caused by communication interface delay and multi-rate sampling in multi-disciplinary co-simulation of offshore wind turbines
an optimized interface data exchange technology was studied to improve the simulation accuracy of gas-mechanical-electro coupling characteristics. An interface-optimization scheme based on Hermite interpolation was proposed
a mathematical error model was established to compare the error magnitudes of the zero-order hold (ZOH) with the optimized interface. A simplified electro-mechanical co-simulation platform was constructed to verify the interface performance
and the optimized interface was then deployed in a fully coupled offshore-wind simulation system. Results show that in the simplified second-order test
the Hermite-interpolation interface reduces the simulation error magnitude significantly. In the full electro-mechanic simulation
after adopting the optimized interface data exchange scheme
the fidelity of the system is significantly improved
and the response characteristics are closer to real working conditions. By refining the data transfer among cross-disciplinary models
Hermite extrapolation effectively eliminates interface-induced distortions in co-simulation.
关键词
Keywords
references
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