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Coupling Calculation and Analysis of Harmonic Propagation in Wind Farm

机译：风电场谐波传播耦合计算与分析

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Because the doubly-fed wind turbine contains a large number of power electronic equipment, as well as the randomness and uncontrollability of wind power generation, the wind farm inputs a large amount of harmonics while inputting active power to the grid, which brings many adverse effects to the power system. Therefore, analyzing the harmonic content of wind turbines to the main busbar of the grid is a key issue in the development of the wind power industry. The research object of this paper is mainly the harmonic propagation and coupling of the wind farm composed of doubly-fed wind turbines. By changing the wind speed and the number of wind turbines, and analyzing the harmonics by FFT (Fast Fourier Transform). The total distortion rate of the wave summarizes the variation law of the internal harmonic distortion rate of the wind farm with the number of wind turbines and the operating state.
机译：由于双馈风力涡轮机包含大量电力电子设备，以及风力发电的随机性和不可控制性，风电场在为网格输入有功功率的同时投入大量谐波，这带来了许多不利影响到电力系统。因此，分析风力涡轮机对电网主母线的谐波含量是风电工业发展的关键问题。本文的研究目的主要是由双馈风力涡轮机组成的风电场的谐波传播和耦合。通过改变风速和风力涡轮机的数量，并通过FFT（快速傅里叶变换）分析谐波。波的总失真率总结了风电场内部谐波失真率的变化规律，具有风力涡轮机的数量和运行状态。

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