Improving power quality of wind energy conversion system with unconventional power electronic interface
Improving power quality of wind energy conversion system with unconventional power electronic interface
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DOI：
10.1016/j.ijepes.2012.07.051
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发表时间：
2013
影响因子：
5.2
通讯作者：
L. Gidwani;H. Tiwari;R. Bansal
中科院分区：
文献类型：
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作者：
L. Gidwani;H. Tiwari;R. Bansal
人们对利用风能作为电源的兴趣日益浓厚，促使更多的研究致力于将该电源非常规地整合到当前电网中。本文提出了实现这种高效利用的一种途径，即通过使用双馈感应发电机（DFIG）的集成风能转换系统（WECS）。风电并网带来了电压波动和谐波畸变的问题。本文提出了一种非常规电力电子接口（UPEI），以减少总谐波失真（THD）并提高扰动期间的电能质量。本文使用的模型包括变桨距控制风力发电机模型、DFIG模型、电力系统模型和具有受控变流器的UPEI模型。模拟了132kV母线的相间故障，并给出了风力发电系统并网时的测量结果。结果证明了 UPEI 调节俯仰角、VAR 和降低 THD 的能力。所提出的系统提高了风能利用的有效性。
The increasing interest to utilize wind energy as a power source prompted more researches to be dedicated to the unconventional integration of this power source into the current grid. In this paper, one avenue to achieve this efficient utilization, through the use of integrated wind energy conversion system (WECS) using doubly fed induction generator (DFIG) is presented. Wind grid integration brings the problems of voltage fluctuation and harmonic distortion. This paper presents an Unconventional Power Electronic Interface (UPEI) to reduce the total harmonic distortion (THD) and enhance power quality during disturbances. The models used in the paper includes a pitch-angled controlled wind turbine model, a DFIG model, power system model and an UPEI having controlled converters. A phase to phase fault is simulated on 132kV bus and the measured results obtained from grid connection of the wind generation system are presented. The results have demonstrated the ability of UPEI to regulate pitch angle, VAR and to reduce THD. The proposed system increases the effectiveness of the utilization of wind energy.