本文旨在發展風力發電之性能評估模擬及風車模擬器。其中性能評估模擬系統包括風車、永磁式同步發電機、三相整流器及變流器模式的建立，並含風力最大功率追蹤控制及與市電併聯之運轉；而建立風車模式之目的，在於利用葉片之風能對機械能之關係，計算出原動機之轉矩命令，以帶動風車模擬器之永磁式同步發電機，提供負載所需之功率。上述二者之研究皆使用Matalab/Simulink。
在性能模擬系統，本文提出低通濾波器，不僅可以抑制開關諧波，亦能偵測永磁式同步發電機轉速及角位置，故不需額外轉速偵測元件。另者，文中以極零點對消方法設計整流器及變流器之比例-積分控制器，並以發電機轉速閉迴路控制，完成最大功率追蹤及減少噪音。
本文已完成30kW風力發電系統之市電併網模擬，並操作在市電電壓及頻率分別為220V與60Hz情況下。此外，實驗結果顯示風車模擬器的轉矩命令可以如預期地驅動原動機和永磁式同步發電機。

This thesis is concerned with the development of performance evaluation simulator for wind power systems and wind turbine simulator. The former includes wind turbine, permanent-magnet synchronous generator(PMSG), three-phase rectifier and inverter, maximum power point tracking(MPPT) as well as grid-connected operation, while the later determines the torque command for prime mover by solving the nonlinear equations characterizing the input-output relationship of wind blade. The torque command is then used by PMSG to generate power for load in wind turbine simulator. In both of the above studies, Matalab/Simulink is used.
In the performance simulation system, a lowpass LC filter is introduced to not only suppress switching harmonics, but also detect the speed and position of PMSG rotor, thereby completes speed sensorless operation. In addition, pole-zero cancellation is adopted to design the proportional-integral controllers for rectifier and inverter. Moreover, the closed-loop control of generator speed is developed to achieve MPPT and reduce noise.
A 30kW grid-connected wind power system has been simulated. Sinusoidal output voltage of 220V and frequency of 60Hz is obtained. Besides, experimental results indicate that the torque command determined for the wind turbine simulator can drive the prime mover and PMSG satisfactorily.

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