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首页> 外文期刊>Electric power systems research >A proposal for a wind system equipped with a doubly fed induction generator using the Conservative Power Theory for active filtering of harmonics currents
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A proposal for a wind system equipped with a doubly fed induction generator using the Conservative Power Theory for active filtering of harmonics currents

机译：带有双馈感应发电机的风力系统的建议，该系统使用保守功率理论对谐波电流进行有源滤波

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摘要

This study describes a strategy that allows the addition of active filtering functionality to a doubly fed induction generator (DFIG) wind power system. The active filtering is performed through an algorithm that uses the mathematical formulation of Conservative Power Theory (CPT) applied into the electric current control loop on grid side converter. The wind power system that uses the CPT to mitigate harmonic currents, allows the improvement of the power quality in electrical power systems where non-linear loads are connected. The active and reactive power control of the DFIG are presented, performed using the stator magnetic flux vector orientation technique. In addition to the detailed description of the back-to-back converter control loops, the controllers design realized by frequency response is presented. The simulation results confirm the possibility of adding the active filtering function in DFIG wind energy systems using the CPT, reducing the THD of the electric current in the grid to less than 5% and improving the power quality in order to comply with the recommendations of the IEEE standardization 519.
机译：这项研究描述了一种策略，该策略允许向双馈感应发电机（DFIG）风力发电系统中添加有源滤波功能。有源滤波通过一种算法执行，该算法使用应用于电网侧转换器电流控制环路的保守功率理论（CPT）的数学公式。使用CPT减轻谐波电流的风力发电系统可以改善连接了非线性负载的电力系统的电能质量。介绍了使用定子磁通矢量定向技术执行的DFIG的有功和无功功率控制。除了对背对背转换器控制环路的详细描述之外，还介绍了通过频率响应实现的控制器设计。仿真结果证实了在使用CPT的DFIG风能系统中增加有源滤波功能，将电网电流的THD降低至5％以下并改善电能质量以符合电网建议的可能性。 IEEE标准化519。

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