Study on maximum power point tracking of wind turbine generator using a flywheel

Proceedings of the Power Conversion Conference-Osaka 2002 (Cat. No.02TH8579) Pub Date : 2002-08-07 DOI:10.1109/PCC.2002.998568

A. Koyanagi, H. Nakamura, M. Kobayashi, Yasunori Suzuki, R. Shimada

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引用次数: 32

Abstract

This paper focuses on a maximum power point tracking for wind turbine generator (WTG) with a flywheel. Power coefficient C/sub p/, which has the optimum point, depends on a tip speed ratio (TSR). If we can adjust the angular velocity of WTG to wind speed with the frequency converter, we can realize the maximum power point tracking (MPPT) for WTG. Firstly, this paper explains a mechanism of wind power capture and necessity of flywheel. Secondly, we compare the difference between power ratio with and without a flywheel. We compare between fixed speed rotation operation and MPPT operation with data of the Tappi-zaki WTG system. As a result, a total power increase of up to 2 times has been obtained when the average wind speed is around 6.2 m/s (rated power is 275 kW). Finally, we proposed a simple small WTG system with permanent magnet type synchronous generator (rated power is 150 W) and wind turbine of 3-blades (rotor diameter is 1.24 m). We can make various wind speeds with the electric fan, so that we can evaluate MPPT operation with the experimental studies.

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基于飞轮的风力发电机组最大功率点跟踪研究

研究了带飞轮的风力发电机组最大功率点跟踪问题。功率系数C/sub p/具有最优点，取决于叶尖速比(TSR)。如果利用变频器将WTG的角速度调整为风速，就可以实现WTG的最大功率点跟踪。本文首先阐述了风力发电的机理和飞轮的必要性。其次，我们比较了有飞轮和没有飞轮的功率比的差异。我们用Tappi-zaki WTG系统的数据，比较了固定转速运转和MPPT运转。结果表明，在平均风速为6.2 m/s左右(额定功率为275 kW)时，总功率增长可达2倍。最后，我们提出了一种简单的小型永磁同步发电机(额定功率为150w)和三叶片风力发电机(转子直径为1.24 m)的WTG系统，我们可以用电风扇制造各种风速，从而通过实验研究来评估MPPT的运行情况。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of the Power Conversion Conference-Osaka 2002 (Cat. No.02TH8579)

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