雙饋式感應風力發電機與配電系統之併聯運轉

Doubly-fed Induction Generator Connected to Distribution Systems

李龍安(Long-An Lee)

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(2010年)

https://doi.org/10.6342/NTU.2010.01184

摘要

本論文之主要目的在研究雙饋式感應風力發電機與配電系統之併聯運轉。文中利用背對背之兩組變流器控制雙饋式感應發電機之工作特性，主要研究內容有兩點，第一為研究電力系統之變動對風力發電機的影響；第二為研究不同風速下風力發電機之最大功率追蹤。

首先針對風力機之特性及雙饋式感應發電機之特性進行分析，其次建立控制方塊圖，再利用脈波寬度調變技術搭配 PI控制器控制背對背變流器，以使雙饋式感應風力發電機同時具備穩定定子端電壓及輸出最大功率之能力。

模擬方面使用MATLAB○R/Simulink/SimPowerSystems軟體模擬整個系統。本論文將模擬出負載變動及風速變動下，雙饋式感應發電機之動態特性。

關鍵字

風力發電 ； 雙饋式感應發電機 ； 配電系統 ； 最大功率追蹤 ； 背對背變流器 ； 脈波寬度調變

並列摘要

Dynamic performance of a doubly-fed induction generator(DFIG) connected to a distribution system is investigated in this thesis using a back-to-back converter tocontrol the doubly-fed induction generator. Two major topics are covered in this
study. One is the effect of a disturbance in the power system on the dynamicperformance of the DFIG. The other is the maximum power point tracking(MPPT) ofthe DFIG under different wind speeds.

The characteristics of wind turbine and doubly-fed induction generator are first studied. Then the control block diagram for the DFIG is established. The real andreactive power outputs of the DFIG are controlled by a back-to back converter using aPI controller and the pulse width modulation(PWM) technology.

Dynamic simulations for the system subject to disturbances such as load changes
and wind speed variations are conducted MATLAB○R/Simulink/SimPowerSystems. It is concluded from the simulation results that stator voltage can be effectively regulated and maximum power can be extracted from the wind turbine by theproposed DFIGcontroller.

並列關鍵字

wind energy conversion ； duubly-fed induction generator ； distribution systems ； maximum power point tracking ； back-to-back converter ； pulse width modulation

參考文獻

[20] 翁川翔，「雙饋式感應發電機動態特性之模擬」，台灣大學電機所碩士論 文，2009。

[13] 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，2008。

[17] C.M. Ong, Dynamic Simulation Of Electric Machinery, Pearson Education Taiwan Ltd. Feb 2005.

[1] http://unfccc.int/resource/docs/convkp/kpeng.html ”Kyoto Protocal To The United Nations Framework Convention On Climate Change,” 2007.

[4] Z.M. Salameh and L.F. Kazda, “Analysis of the steady state performance of the double output induction generator,” IEEE Transactions on Energy Conversion, Vol. EC-1, No.1,March 1986.