Adaptability research of optimal operation mode with variable frequency drives for pumping stations in China′s Eastern RouteProject of S-to-N Water Diversion
Cheng Jilin1, Zhang Rentian1,2 , Deng Dongsheng3, Gong Yi1, Feng Xusong3
（1.College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, China; 2.Jiangsu Surveying and Design Institute of Water Resources Co. Ltd.， Yangzhou, Jiangsu 225009, China; 3.Jiangsu Water Source Co. Ltd. of the Eastern Route of S-to-N Water Diversion, Nanjing, Jiangsu 210029, China)
Abstract：Taking the No.4 Jiangdu Pumping Station in China′s Eastern Route Project of S-to-N Water Diversion Project as a study case, mathematics models and solution methods were systematically proposed for optimal operation of single pump unit within a pumping station through blade adjusting regulation and variable speed regulation with variable frequency drives. Following results were achieved: (a) Better benefits can be obtained by optimization of blade adjusting operation compared with optimal variable speed operation by means of variable frequency drive under the conditions of the daily average pumping heads yearly varies from 3.8 m to 7.8 m and daily mean tidal range 1.2 m affected by Yangtze River tide no matter whether the peak valley electricity price is considered. (b)The optimal variable speed operation by means of variable frequency drive is better than optimization of blade adjusting operation only while the daily average pumping head is below 5.0 m and the pump is not with the total water amount. (c)While comparing with that of fixed blade angle and constant speed, the benefits brought about by optimization of variable speed operation cannot compensate the energy consumption of variable frequency drive with the total water amount. Meanwhile, according to the mechanism of pump system, the argument is proved that better benefits of large scale pumping station can be obtained by optimization of variable speed operation by means of variable frequency drive only while the pumping heads in a water transfer process has a large variation, which could provide theoretical basis for the renovation and optimal operation of large scale pumping station in Eastern Route Project of S-to-N Water Diversion Project.
程吉林, 张仁田 , 邓东升, 龚 懿, 冯旭松. 南水北调东线泵站变速运行模式的适应性[J]. 排灌机械工程学报, 2010, 28(5): 434-438.
Cheng Jilin, Zhang Rentian, Deng Dongsheng, Gong Yi, Feng Xusong. Adaptability research of optimal operation mode with variable frequency drives for pumping stations in China′s Eastern RouteProject of S-to-N Water Diversion. Journal of Drainage and Irrigation Machinery Engin, 2010, 28(5): 434-438.
[1]Stopanoff A J.Contrifugal and Axial Flow Pumps[M].2nd Ed.London:London Chapman ＆ Hall Ltd,1957.[2]冯晓莉,仇宝云,黄海田,等.南水北调东线江都排灌站优化运行研究[J].水力发电学报,2008,27(4):130-134.Feng Xiaoli,Qiu Baoyun,Huang Haitian,et al.Study on optimal operation of Jiangdu pump stations in Eastern Route of South to North Water Diversion Project[J].Journal of Hydroelectric Engineering,2008,27(4):130-134.(in Chinese)[3]江苏省江都水利工程管理处.江都排灌站[M].2版.北京:水利电力出版社,1979.[4]朱红耕,黄红虎.三江营水情变化对江都排灌站影响的数理分析[J].扬州大学学报:自然科学版,2003,6(1):75-78.Zhu Honggeng,Huang Honghu.Mathematical analysis on the change of water-regime in Sanjiangying and its influence upon Jiangdu pumping station[J].Journal of Yangzhou University:Natural Science Edition,2003,6(1):75-78.(in Chinese)[5]Gong Yi,Cheng Jilin,Zhang Lihua,et al.Study on operation optimization of pumping station′s 24 hours operation under influences of tides and peak-valley electricity prices[C]//The 10th Asia International Confe-rence on Fluid Machinery.New York:AIP Conference Proceedings,2010,1225:137-146.[6]程吉林,张礼华,张仁田,等.叶片可调单机组日运行优化方法研究[J].水利学报,2010,41(4):499-504.Cheng Jilin,Zhang Lihua,Zhang Rentian,et al.Study on optimal day-operation of single adjustable-blade pump unit[J].Journal of Hydraulic Engineering,2010,41(4):499-504.(in Chinese)[7]程吉林,张礼华,张仁田,等.泵站单机组变速运行优化方法研究[J].农业机械学报,2010,41(3):72-76.Cheng Jilin,Zhang Lihua,Zhang Rentian,et al.Optimal methodology of single-unit variable speed operation in pumping station[J].Transactions of the Chinese Society for Agricultural Machinery,2010,41(3):72-76.(in Chinese)[8]刘宜,李会暖,刘晓阳,等.变频调速技术在水泵调节控制系统中的应用[J].排灌机械,2006,24(4):44-46.Liu Yi,Li Huinuan,Liu Xiaoyang,et al.Application of variable frequency speed regulation technique in pump control system[J].Drainage and Irrigation Machiney,2006,24(4):44-46.(in Chinese)
