風力製冰與發電兩用機之機電整合與自動控制

Electromechanical Integration and Autocontrol of the Wind Forced Chiller Integrated with Wind Generator

蕭孟柯(Meng-Ke Hsiao)

指導教授 ： 丁振卿

國立臺北科技大學/機電學院/製造科技研究所/碩士(2009年)

摘要

本論文利用風力直接製冰，不採用風力發電再以電力驅動壓縮機製冰方式，
如此可免去兩次風力能與電能轉換時的損耗，增加風力能在製冰應用的效率，
並整合發電機來擷取不足以啟動壓縮機時的風能，以充分利用風力機所擷取的風能，提昇風力機之整體效率。
另外，邏輯控制系統的完成使風力製冰與發電兩用機進行自動切換，實驗結果得知，製冰系統在全風場時之效率約為3.9%，
而發電機在全風場時之效率約為0.05%。壓縮機效率偏低的原因有自製風力機葉片效率較低，及全風場計算時，
不足以啟動壓縮機時的風能也被計算進入所造成；而發電機則是因為未達最佳工作轉速使其發電效率偏低。

另外，為了解本風力機所使用的簡易折角葉片之擷取風能效率，本研究自行架設慢速風洞，
將等比例縮小之多葉簡易折角葉片置於風洞中進行測試，結果顯示，在低風速風場時，
45度折角葉片擁有較好的擷取風能效率10.2%，而本風力機葉片為35度折角，效率為8.6%。
為了解發電系統與製冰系統工作時所需之扭力，本研究也自行架設扭力計，量測出不同激磁大小對於發電機之啟動扭矩影響，
以及壓縮機之工作扭矩，使得本風力製冰與發電兩用機在未來系統最佳化以及變速系統的配置上有參考數據。

關鍵字

風力製冰 ； 自動控制 ； 風洞 ； 扭力計

並列摘要

This paper developed a wind forced chiller to replace the
traditional refrigeration system. It avoids the energy loss during
two times energy conversion processes between wind energy and
electric energy. To enlarge working efficiency of the wind
machine, a generator is combined into the wind forced chiller to
build a dual system. The integrated wind generator can use the
wind energy, which is not strong enough to drive the wind forced
chiller effectively. An integrated programmable logic controller
(PLC) is applied in this wind forced dual system to drive the wind
forced chiller and the wind generator in terms of the rotational
speed separately. The results show that working efficiency of
windchiller is ca. 3.9% and generator is ca. 0.05% in the all
wind field. The low working efficiency of windchiller is due to
the lower working efficiency home-made wind machine and larger
working torque requirement of windchiller. The low working
efficiency of wind generator is due to the too slow rotational
speed.
Moreover, this research built a slow speed wind tunnel to
measure the working efficiency of the home-made wind machine. Size
reduction of the angular vanes in accordance with analogical
theorem were made for measurement. The results show that the
45 degree angular vane has the best working efficiency 10.2% and
the applied wind machine with 35 degree angular vane is 8.6%. A
torsional dynamometer is also built for determining the the torque
of the wind generator, which supports significant data for the
future system optimization.

並列關鍵字

Wind Forced Chiller ； Autocontrol ； Wind Tunnel ； Torsional Dynamometer

參考文獻

1. C. C. Ting, J. N. Lee, and C. H. Shen, " Development of a Wind Forced Chiller and its Efficiency Analysis", Applied Energy, vol. 85, 2008, pp. 1190-1197.

3. M. K. Hsiao and C. C. Ting, "Developing the Dual System of Wind Forced Chiller Integrated with Wind Generator", The 4th Asian Conference on Refrigeration and Air-Conditioning, 2009, pp. ACRA054.

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