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| Optimizing the closure law of wicket gates in hydraulic turbine based on simulated annealing |
| ZHOU Tianchi, ZHANG Jian*, YU Xiaodong, CHU Shanpeng |
| College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, Jiangsu 210098, China |
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Abstract A new optimization model was set up to solve the contradictions between water hammer pressure and turbine speed during the transient process in hydropower stations. The model can be applied to the multi-condition optimization and the parameters in it can be adjusted easily. Based on the cha-racteristic method, simulated annealing algorithm was applied to the optimization of the wicket gate closure law. In a practical case, two controlling conditions were selected in maximum volute pressure and maximum turbine speed and numerical caculation, and results of different closure laws were compared and analyzed. Then the two-segment closure law was optimized using simulated annealing algorithm. The maximum volute pressure, maximum turbine speed and minimum draft tube pressure met the design requirements and the safety margins was allocated reasonably. The results show that simulated annealing algorithm can quickly and stably optimize the wicket gate closure law, which provides a new method for closure law selection in similar hydropower stations.
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Received: 06 December 2016
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| [1]CHAUDRY M H. Applied hydraulic transients[M]. New York,USA:Springer,2013.[2]ZHENG Taoping,TIAN Ziqin,GUI Shaobo,et al. Hydraulic transient process research technologyand engineering application on the complex water tunnel conve-yance system of hydropower station[C]//Fluid Machine-ry and Fluid Engineering,2014:1-5.[3]徐武林,王煜. 引水式电站过渡过程研究[J]. 能源研究与信息,2013,29(3):139-143. XU Wulin,WANG Yu. Research on the transient process of the diversion-type power station[J]. Energy research and information,2013,29(3):139-143.(in Chinese)[4]胡细波,毛先强,张楠林. 水轮机的导叶关闭规律分析及应用[J]. 水电与新能源,2015(7):66-68. HU Xibo,MAO Xianqiang,Zhang Nanlin. Experimental study on optimized closing process of hydro-turbine guide vanes[J]. Hydropower and new energy,2015(7):66-68.(in Chinese)[5]齐学义,周俊,汪玮华,等. 水电站调节保证计算中导叶关闭规律探讨[J]. 价值工程,2012,31(26):97-98. QI Xueyi,ZHOU Jun,WANG Weihua,et al. Research for shut mode of guide blade in guaranty calculation of regulation of hydropower stations[J]. Value enginee-ring,2012,31(26):97-98.(in Chinese)[6]李文锋,罗兴锜,刘胜柱,等. 导叶两段关闭规律研究及其优化[C]//中国动力工程学会水轮机专业委员会. 第十九次中国水电设备学术讨论会论文集.哈尔滨:黑龙江科学技术出版社,2013.[7]高志芹,吴余生. 基于自适应遗传算法的水轮机导叶关闭规律优化计算[J]. 大电机技术,2007(5):32-36. GAO Zhiqin,WU Yusheng. Optimizing the closure rule of wicket in hydraulic turbine based on adaptive genetic algorithm[J]. Large electric machine and hydraulic turbine,2007(5):32-36.(in Chinese)[8]罗轩. 基于蚁群算法的灯泡贯流式机组调节系统的参数优化[D]. 南昌:南昌工程学院,2015.[9]王洋,王玲花. 水电站过渡过程研究历史及现状综述[J]. 吉林水利,2014(9):29-33. WANG Yang,WANG Linghua. Summary of research history and current situation for transient process of hydropower station[J]. Jilin water resources,2014(9):29-33.(in Chinese)[10]El-NAGGAR K M,ALRASHIDI M R,ALHAJRI M F,et al. Simulated annealing algorithm for photovoltaic parameters identification[J]. Solar energy,2012,86(1):266-274.[11]VIJAY A S,RAJ N R N. Robust estimation of adaptive deblurring using simulated annealing algorithm[C]//International Conference on Communication and Signal Processing, 2016:0576-0580.[12]何国华,解建仓,汪妮,等. 基于模拟退火遗传算法的水资源优化配置研究[J]. 西北农林科技大学学报(自然科学版),2016,44(6):196-202. HE Guohua,XIE Jiancang,WANG Ni,et al. Optimal allocation of water resources based on simulated annealing-genetic algorithm[J]. Journal of Northwest A & F University(natural science edition), 2016,44(6):196-202.(in Chinese)[13]邹琳,王丽萍,黄海涛,等. 梯级水电站调度图优化的混合模拟退火遗传算法[J]. 人民长江,2010,41(3): 34-37. ZHOU Lin,WANG Liping,HUANG Haitao,et al. Optimization of operation chart of cascade hydropower stations based on hybrid genetic algorithm and simulated annealing[J]. Yangtze River,2010,41(3):34-37.(in Chinese) |
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