Control system of a performance test-bed for frost protection wind machines
Keywords:
frost protection, wind machines, performance test-bed, design, control, PLCAbstract
Abstract: To test the performance and optimize operational parameters of various frost protection wind machines, a control system of performance test-bed was designed and developed based on Programmable Logic Controller (PLC) and touch screen. The system realized automatic control of operational parameters including hydraulic platform height, impeller rotation speed, depression angle, rotation range and cycle. Field case study results shows that the control accuracy of all the parameters was achieved with the average errors of 2.11 cm for height, 9.5 r/min for impeller rotation speed, 0.83° for pan-tilt rotation range and 0.061 min for rotation cycle. With the control of the test-bed, the performances of various wind machines, such as the distribution of airflow and temperature, and frost protection effect, could be tested under various working conditions, which provide experiment supports for developing wind machines adapted to different conditions with higher frost protection effect. Keywords: frost protection, wind machines, performance test-bed, design, control, PLC DOI: 10.3965/j.ijabe.20160906.1664 Citation: Hu Y G, Liu P, Asante E A, Wu W Y, Li P P. Control system of a performance test-bed for frost protection wind machines. Int J Agric & Biol Eng, 2016; 9(6): 36-43.References
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[21] Ji M F, Jiang Z T, Tian Z H. The angle measurement system of three axis turntable based on photoelectric encoder. Mechanical and Electrical Engineering Magazine, 2004; 21(10): 9−12. doi: 10.3969/j.issn.1001-4551.2004.10.003. (in Chinese with English abstract)
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[2] Wang F, Zhang Y Q. The influence of late spring coldness on famous tea production and its prevention. Agriculture Equipment & Technology, 2004; 30(6): 26. doi: 10.3969/ j.issn.1671-6337.2004.06.019. (in Chinese with English abstract)
[3] Luo Y P. China tea cultivation. Beijing: China Agricultural Press, 2015. (in Chinese)
[4] Snyder R L, De Melo-Abreu J P. Frost protection: fundamentals, practice and economics-Volume I. Rome: Food and Agriculture Organization of the United Nations, 2005.
[5] Ribeiro A C, De Melo-Abreu J P, Snyder R L. Apple orchard frost protection with wind machine operation. Agricultural Forest Meteorology, 2006; 141(2-4): 71−81. doi: 10.1016/ j.agrformet.2006.08.019.
[6] Hu Y G, Li P P, Dai Q L, Zhang X L, Tanaka K H, Cui G L. System design and experiment on elevated wind machine for tea frost protection. Transactions of the CSAM, 2007; 20(12): 97–99, 124. doi: 10.3969/j.issn.1000-1298.2007.12. 024. (in Chinese with English abstract)
[7] Hu Y G, Wu W Y, De Melo-Abreu J P, Shapland T M, Zhang H, Snyder R L. Comparative experiments and effectiveness evaluation on vertical blowing fans (VBF) for frost protection. International Journal of Agricultural and Biological Engineering, 2016; 8(5): 36−42. doi: 10.3965/ j.ijabe.20150805.1419.
[8] Hu Y G, Liu S Z, Wu Wenye1, Wang J Z, Shen J W. Optimal flight parameters of unmanned helicopter for tea plantation frost protection. International Journal of Agricultural and Biological Engineering, 2016; 8(5): 50−57. doi: 10.3965/j.ijabe.20150805.1655.
[9] Zhao T J, Li C D. Mechanism and technology frost prevention of mechanical system. Jiangsu Agricultural Mechanization, 2010; 1: 30−32. doi: 10.16271/j.cnki.jsnjh. 2010.01.010. (in Chinese)
[10] Li C D, Jing G F, Zhao T J. Preliminary Application of mechanical system for frost prevention in tea fields. Agricultural Equipment and Technology, 2009; 35(4): 12−14. (in Chinese)
[11] Wu W Y, Hu Y G, Yang S, Mao K Q, Zhu X Y, Li P P. Optimal design of wind machine impeller for frost protection based on CFD and its field test on airflow disturbance. International Journal of Agricultural and Biological Engineering, 2016; 8(5): 43−49. doi: 10.3965/j.ijabe. 20150805.1415.
[12] Yang S. Design and experiment of a biconvex-airfoil wind machine for tea frost protection. Master dissertation. Zhenjiang: Jiangsu University, 2014. (in Chinese)
[13] Wu W Y, Hu Y G, Lu H Y, Amoah A E, Liu S Z. Airfoil optimization design for frost protection wind machines using profili software. International Agricultural Engineering Journal, 2015; 24(3): 43−51.
[14] Hu Y G. Mechanism and control technology of late frost protection for tea plant (Camellia sinensis L.) through air disturbance. PhD dissertation. Zhenjiang: Jiangsu University, 2011. (in Chinese)
[15] Furuta N H, Li C D. Frost prevention machine for plant: CN Patent: CN202282966U.2011-10-17
[16] Furuta M, Araki S. Frost prevention fan apparatus having automatic folding type neck mechanism: JP Patent: JP2007000096, 2007-01-11.
[17] Battany M C. Vineyard frost protection withupward-blowing wind machines. Agricultural and ForestMeteorology, 2012; 157: 39–48. doi: 10.1016/j.agrformet.2012.01.009.
[18] Yazdanpanah H, Stigter C J. Selective inverted sinkefficiency for spring frost protection in almond orchardsnorthwest of Isfahan. Theoretical and Applied Climatology, 2011; 105(1): 27–35. doi: 10.1007/s00704- 010-0367-7.
[19] Li D B, Chen G. Application of PLC and touch screen in the monitoring system of the exhauster. Instrumentation Technology, 2008; 10: 24-28. doi: 10.3969/j.issn.1006- 2394.2008.10.009. (in Chinese with English abstract)
[20] Bryan L A. Programmable controllers: theory and implementation. Atlanta: Industrial Text Company, 1997.
[21] Ji M F, Jiang Z T, Tian Z H. The angle measurement system of three axis turntable based on photoelectric encoder. Mechanical and Electrical Engineering Magazine, 2004; 21(10): 9−12. doi: 10.3969/j.issn.1001-4551.2004.10.003. (in Chinese with English abstract)
[22] Wang C X, Yang R Q, Weng Q H, Li G B. An angle monitored control system based on photoelectric encoder and PLC. Machinery and Electronics, 2002; (2): 13−15. doi: 10.3969/j.issn.1001-2257.2002.02.004. (in Chinese with English abstract)
[23] Chu H. FN2X series programmable controllers. Beijing: Electronic Industry Press, 2014.
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Published
2016-12-01
How to Cite
Yongguang, H., Ping, L., Amoah, A. E., Wenye, W., & Pingping, L. (2016). Control system of a performance test-bed for frost protection wind machines. International Journal of Agricultural and Biological Engineering, 9(6), 36–43. Retrieved from https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/1664
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Power and Machinery Systems
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