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硕士生顾嘉伟的论文被国际著名期刊“Renewable Energy”录用

日期2020/11/18 21:20:16

近日,由张立军教授指导的硕士生顾嘉伟撰写的论文《Rationality Research of the Adjustment Law for the Blade Pitch Angle of H-type Vertical-axis Wind Turbines》被国际知名期刊“Renewable Energy”正式录用。《Renewable Energy》最新影响因子6.274(中科院SCI分区最新版1区),该期刊重点报道能源科学和能源技术等方面的最新研究成果。

Pitch angle greatly affects the performance of VAWT. Aiming at the maximum value of CT, this study first obtains the theoretical optimal angles of attack, i.e., 17.7° and 18.4° in upwind and downwind zones. A 2.5D model is simulated using Fluent to determine the magnitude and direction of induced velocity, and an initial pitch angle adjustment law is obtained combining the proposed local TSR. Compared with a prototype wind turbine, CP is increased by 2.69% after applying the initial adjustment law. The fitting curve angle δ at the abrupt part of pitch angle is analyzed. The smaller the angle δ is, the more evident the performance improvement of VAWT becomes. CP is increased by 11.68% when the angle is δ=0°. On this basis, the adjustment law corresponding to δ=0° of 100°<azimuth angle θ<250°, where CT is low, is modified locally. At this time, CP is improved by 14.56%. Lastly, the change of the shaft’s synthetic force is analyzed. Compared with no various pitch, that with the adjustment law shows an increased average value of synthetic force and a decreased fluctuation. Moreover, the fluctuation of the shaft’s synthetic force under the action of the local adjustment law is the smallest.