具混合式儲能源及插入式市電能源補充之風力開關式磁阻發電機為主直流微電網

本論文旨在開發以風力開關式磁阻發電機為主之直流微電網，其具含飛輪及蓄電池組成之混合儲能系統，並配具由既有開關式磁阻發電機電力電路建構之插入式市電能源補充機構。　　所建之風力開關式磁阻發電機經由交錯式昇壓直流/直流轉換器介接至微電網之共同直流匯流排，經由適當地電力電路設計、強健電壓控制、電壓命令設定及換相移位，在變動之驅動轉速及負載下可得良好之直流匯流排電壓調控特性。且因採用交錯式技術，亦可得較小之輸入電流紋波及較高之可靠度。為從事微電網之實測性能評估，本論文亦建構了一個三相負載變頻器，經由適當控制，於線性及非線性負載下可獲得良好之交流輸出電壓波形及動態調節特性。　　於所建之混合式儲能系統，電池組經由一雙向降/昇壓直流/直流介面轉換器介接至微電網之共通直流鏈，經由適當地設計其電力電路及控制器，可得良好之充、放電特性。而所建構開關式磁阻馬達驅動之飛輪則配以雙向昇/昇壓直流/直流介面轉換器，並提出一些改善其放電性能之策略，以及從事其比較評估。　　最後，於所建構之插入式市電能量補充機構，由原開關式磁阻發電機系統之元件改接形成一單相交錯式昇壓切換式整流器，在由市電對微電網補充能源下，具有良好之入電電力品質。

關鍵字

風力發電機；開關式磁阻電機；微電網；儲能系統；飛輪；蓄電池；交錯式；負載變頻器；強健控制；動態換相移位；插入式

並列摘要

In this thesis, a switched-reluctance generator (SRG) based DC micro-grid is established. It is equipped with a hybrid energy storage system composed of a flywheel and a lead-acid battery bank. The plug-in energy support through SRG power circuit from the utility grid is also implemented. The developed SRG is interfaced to the micro-grid common DC bus via an interleaved boost DC/DC converter. Well regulated DC bus voltage is obtained under varying shaft driving speeds and load conditions by properly treating the related key issues, such as power circuit design, robust voltage control, voltage command setting and commutation shift, etc. Also, lower input current ripples and higher reliability are preserved since the interleaving technique. To evaluate the established DC micro-grid experimentally, a three-phase load inverter with proper control is established. Good AC voltage waveform and dynamic response characteristics are achieved under linear and nonlinear load. In the developed hybrid energy storage system, the battery bank is interfaced to the common DC bus through a bilateral buck/boost DC/DC converter. Good charging and discharging characteristics are achieved through properly designing the power circuit and controllers. As to the switched-reluctance motor driven flywheel, the proposed bilateral boost/boost DC/DC converter is employed as its interface. Several discharging performance improvement approaches are proposed and comparatively evaluated. In the developed plug-in energy support mechanism, a single phase interleaved boost switched-mode rectifier is formed using the original SRG system components. The energy support from the mains to the micro-grid with good line drawn power quality is achieved.

並列關鍵字

Wind generator ； switched-reluctance machine ； micro-grid ； energy storage system ； flywheel ； battery ； interleaving ； load inverter ； robust control ； dynamic commutation shift ； plug-in

參考文獻

Micro-Grid and Distributed Power Systems

[3] D. Boroyevich, I. Cvetkovic, D. Dong, R. Burgos, F. Wang and F. C. Lee, “Future electronic power distribution systems a contemplative view,” in Proc. IEEE OPTIM, 2010, pp.1369-1380.

[4] H. Kakigano, M. Nomura and T. Ise, “Loss evaluation of DC distribution for residential houses compared with AC system,” in Proc. IEEE IPEC, 2010, pp. 480-486.

[5] H. Kakigano, Y. Miura and T. Ise, “Low-voltage bipolar-type DC microgrid for super high quality distribution,” IEEE Trans. Power Electron., vol. 25, no. 12, pp. 3066-3075, 2010.

[6] Y. C. Chang and C. M. Liaw, “Establishment of a switched-reluctance generator based common DC micro-grid system,” IEEE Trans. Power Electron., vol. 26, no. 9, pp. 2512-2527, 2011.

國際替代計量

具混合式儲能源及插入式市電能源補充之風力開關式磁阻發電機為主直流微電網

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