VAWT风电场单位面积输出功率是HAWT风电场的数十倍，针对VAWT多轮系统开展多参数耦合效应研究十分重要。为此论文针对VAWT三轮系统，通过拉丁超立方抽样方法进行两台上游风力机的间距，上下游风力机的间距，系统宽高比，叶轮实度和叶轮旋向5参数的空间采样，利用三维CFD数值模拟，分析几何参数对VAWT三轮系统气动效率和流场特性的作用效果。结果表明:VAWT实度是影响VAWT三轮系统气动性能的主要因素，上游两风轮的间距L0对VAWT三轮系统气动性能影响最小；三个风轮的尾流逐渐合并，并慢慢增大横向范围，因此三轮系统的尾流亏损长度比单轮系统明显缩短；三轮系统尾流长度的减少导致其单位面积输出功率相较单轮系统提高25.51%。

The power output per unit area of a Vertical Axis Wind Turbine (VAWT) wind farm is dozens of times that of a Horizontal Axis Wind Turbine (HAWT) wind farm, making it crucial to study the multi-parameter coupling effects in VAWT multi-turbine systems. To this end, this paper focuses on the three-turbine VAWT system and conducts spatial sampling of five parameters-including the spacing between the two upstream turbines, the spacing between upstream and downstream turbines, the system"s aspect ratio, rotor solidity, and rotor rotation direction-using the Latin Hypercube Sampling method. Three-dimensional Computational Fluid Dynamics (CFD) numerical simulations are employed to analyze the impact of geometric parameters on the aerodynamic efficiency and flow field characteristics of the three-turbine VAWT system.The results show that: rotor solidity is the primary factor affecting the aerodynamic performance of the three-turbine VAWT system, while the spacing L0 between the two upstream rotors has the least influence; the wake flows of the three rotors gradually merge and expand horizontally over time, resulting in a significantly shorter wake deficit length for the three-turbine system compared to a single-turbine system; the reduction in wake length of the three-turbine system leads to a 25.51% increase in power output per unit area relative to the single-turbine system.