雙饋式感應發電機動態特性之模擬

A Simulation For Doubly-fed Induction Generator(DFIG) Dynamic Characteristic

翁川翔(Chuan-Siang Wung)

指導教授 ： 許源浴

國立臺灣大學/電機資訊學院/電機工程學研究所/碩士(2009年)

https://doi.org/10.6342/NTU.2009.03103

摘要

本論文之主要目的在研究雙饋式感應發電機動態特性之模擬，研究的方向著重於風力發電時，控制背對背PWM 轉換器，使葉片轉速在擾動下能追尋最佳化速度軌跡讓風力機達到最大發電能量。
首先將針對風力機、感應機、系統側變流器、轉子側變流器、直流電容、傳輸線、負載和固定交流電容補償器建立出數學模型，接著為了讓雙饋式感應發電機有穩定定子電壓和控制轉子電壓達到最大發電能量的能力，因此將設計系統側控制器與轉子側控制器使之解耦合。
本論文藉由MATLAB/Simulink 軟體模擬，將證明本文提出的控制器在負載切換、三相故障、風速變動下，均能有效的作用。

關鍵字

雙饋式感應發電機 ； 風力發電 ； 感應機 ； 背對背PWM 變流器

並列摘要

Dynamic performance of a doubly fed induction generator(DFIG) with a back-to-back PWM converter under disturbance conditions is investigated in this thesis.
The mathematical models for the wind turbine, the induction generator, the supply side converter, the rotor side converter, the DC capacitor, the transmission line, the load, and the fixed AC capacitor are first established. Decoupled controllers for the supply side controller and the rotor side controller are then proposed in order to regulate the stator voltage and to adjust the rotor voltage such that maximum power output can be
achieved by the doubly-fed induction generator.
Dynamic simulations for the system subject to disturbances such as load change, three-phase fault, and wind speed variations are conducted using MATLAB/Simulink to demonstrate the effectiveness of the proposed decoupled controller.

並列關鍵字

doubly-fed induction generator ； wind power ； induction generator ； back-to-back PWM

參考文獻

[8] 梁國堂，「靜態同步補償器控制器參數之設計」，台灣大學電機所碩士論文，

performance analysis of a 6 MW wind turbine-generator,” IEEE Transactions on

No.5,September 1992.

of Flexible AC Transmission Systems, Institute of Electrical and Electronics

[7] R. Pena, J.C. Clare and G.M. Asher, “Doubly fed induction generator using