This paper presents two novel semi-analytical models for predicting the aerodynamic performance of crosswind kite power systems (CKPSs), where the kite induction effects on the oncoming flow are taken into account. The blade element momentum theory forms the backbone of the models. The effects of reel-out ratio, solidity factor, rotor incidence angle, side-slip angle and tether drag are included in the formulation for the axial induction factor and power output. For simplicity, the wake rotation and the tangential induction factor are neglected. Aerodynamic model 1 is developed for predicting the reel-out power with uniform inflow assumption, and it is suitable for CKPSs with ground-based power generation. Aerodynamic model 2, on the other hand, can predict both the reel-out and torque powers with either uniform or non-uniform inflow assumption, and the model can be used for CKPSs with ground-based, or on-board power generation, or with the combination of the two. Some parametric studies have been conducted for a generic kite system with pre-defined aerodynamic efficiency parameters to highlight the effects of incidence and side-slip angles. In addition, a particular CKPS and its variants are examined to show the individual and combined effects of incidence angle, side-slip angle, tether drag and airfoil shape on the induction factor and power output.

本文提出了两种新的半解析模型，用于预测侧风风筝动力系统 (CKPS) 的空气动力学性能，其中考虑了风筝感应对迎面而来的气流的影响。叶片元素动量理论构成了模型的支柱。出线率、坚固系数、转子入射角、侧滑角和系绳阻力的影响都包含在轴向感应系数和功率输出的公式中。为简单起见，忽略尾流旋转和切向感应因子。空气动力学模型 1 是为了在均匀流入假设下预测卷筒输出功率而开发的，它适用于具有地面发电的 CKPS。另一方面，空气动力学模型 2 可以在均匀或非均匀流入假设下预测收卷功率和扭矩功率，该模型可用于陆基或车载发电，或两者结合的CKPS。已经对具有预定义空气动力学效率参数的通用风筝系统进行了一些参数研究，以突出入射角和侧滑角的影响。此外，还检查了特定的 CKPS 及其变体，以显示入射角、侧滑角、系绳阻力和翼型形状对感应系数和功率输出的单独和组合影响。