SSR analysis of DFIG based wind farm considering spatial distribution of wind speed
SSR analysis of DFIG based wind farm considering spatial distribution of wind speed
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DOI：
10.1109/pesgm.2016.7741740
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发表时间：
2016-07
期刊：
影响因子：
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通讯作者：
J. Ma;L. Jiang;M. Wu;C. Zhang;F. Liu
中科院分区：
文献类型：
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作者：
J. Ma;L. Jiang;M. Wu;C. Zhang;F. Liu
考虑风速空间分布的影响，研究了基于双馈感应发电机(DFIG)的风电场内的次同步谐振现象。首先，建立了一个基于One-DFIG聚合模型的风电场阻抗模型，用于分析感应发电机的影响。在此基础上，建立了风电场风速空间分布对SSR影响的双DFIG聚合阻抗模型，分析了风速空间分布对风电场SSR的影响。不同风速下DFIG的个数会影响SSR，代表风速在空间上的分布。当低风速下DFIG较多时，风电场内所有DFIG同时发生SSR；当高风速下DFIG较多时，所有DFIG的SSR将被抑制。给出了基于阻抗模型的分析和仿真试验。
This paper investigates sub-synchronous resonance (SSR) phenomena inside a doubly-fed induction generator (DFIG) based wind farm, considering the impact of the spatial distribution of wind speed. Firstly, the impedance model of a one-DFIG aggregated model based wind farm is presented to analyze the induction generator effect. Then, a two-DFIGs aggregated impedance model, considering DFIGs in both low wind speed and high wind speed is developed to analyze the influence of wind speed spatially distribution on SSR in a wind farm. The number of DFIGs under different wind speeds, which represented to the wind speed spatially distribution, will influence the SSR. When there are more DFIGs in low wind speed, SSR will occur simultaneously in all DFIGs in a wind farm; while there are more DFIGs in high wind speed, SSR will be damped for all DFIGs. Analysis based on the impendence models and the simulation tests are given.