风力机的风剪塔影模拟及功率脉动抑制

Simulation and Power Pulsation Suppression of Wind Turbines With Wind Shear and Tower Shadow Effects

为了开展风机变流器的实验室模拟研究,设计基于双馈发电机的动态风机模拟器,提出一种在发电机侧进行转矩指令动态补偿的模拟方案,并建立整个双馈风力发电系统对拖模拟平台。对风机的风剪、塔影效应进行定量的分析与模拟,详细地研究由于风剪、塔影效应引起的三次转矩脉动量对双馈风力发电系统的影响。提出一种发电机侧转矩脉动抑制的控制策略,对三次转矩脉动量进行抑制。仿真和实验结果证明了控制策略的有效性和可行性。

In order to carry out the analog study of the fan inverter in the laboratory, a dynamic wind turbine simulator based on the doubly-fed generator was designed, a novel dynamic torque compensation scheme was developed in the generator side, and the whole of a doubly-fed wind power generation system driving simulation platform was constructed. Carrying on the quantitative analysis and simulation of wind shear effects and tower shadow effects of wind turbines, the influence of the third harmonic torque ripple caused by wind shear effects and tower shadow effects on the doubly-fed wind power generation system was studied in detail. A control strategy of torque ripple suppression on the generator side was put forward. The simulation and experimental results proved the effectiveness and feasibility of the control strategy.