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首页> 外文期刊>IEEE Transactions on Energy Conversion >Evaluation of the Effects of Rotor Harmonics in a Doubly-Fed Induction Generator With Harmonic Induced Speed Ripple
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Evaluation of the Effects of Rotor Harmonics in a Doubly-Fed Induction Generator With Harmonic Induced Speed Ripple

机译：带有谐波感应速度波动的双馈感应发电机中转子谐波的影响评估

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摘要

This paper is concerned with the low-frequency harmonics which originate from the rotor inverter of a doubly-fed induction generator (DFIG). By including the mechanical speed response, it expands the transformer approach previously taken to analyze the harmonic transfer in the machine. A numerical method is proposed to calculate the stator current sidebands, which can be used to predict the voltage fluctuation at the system busbar. It is shown that the pulsating torque associated with the rotor harmonics can induce speed ripple depending on the inertia, causing a significant change in the stator current spectrum. Experiment and simulation verify the analysis and the proposed calculation method.
机译：本文关注源自双馈感应发电机（DFIG）的转子逆变器的低频谐波。通过包括机械速度响应，它扩展了以前用于分析机器中谐波传递的变压器方法。提出了一种计算定子电流边带的数值方法，该方法可用于预测系统母线的电压波动。结果表明，与转子谐波相关的脉动转矩会根据惯性引起速度波动，从而导致定子电流谱发生明显变化。实验和仿真验证了分析结果和所提出的计算方法。

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