施[J]. 水力发电, 2002(5 :38 41
[7] 梁权伟. 考虑流固耦合作用的水轮机转轮动力特性 分析[D].北京:清华大学, 2003.
M A IN T O PICS, A BST RA CT S &K EY WO RDS #%#
ISSN 1000 7709
WATER RESOURCES AND POW ER
Vol. 24, N o. 2, Apr. , 2006Bimonthly (Serial N o. 90 Edited and Published:WA TER RESOURCES AND POWER Editorial Depar tm ent
Add:H U ST, Wuhan 430074, China Tel:0086 027 87542126E mail:sdny @x 263. net
Distributed Abroad:China Inter national Boo k
Tr ading Corporation(P. O. Box 399, 100044Beijng , China C ode:Q4165
MAIN TOPICS, ABSTRACTS &KEY WORDS
C ombination Forecasting Model of China Energy C onsumption Based on Gray Model and Back Propagation Network F U Jiafeng (Institute o f G eo
g raphical Sciences and N atural Reso urces Research, CAS, Beijing 100101, China
XU Bin (Xi ?an U niv. o f T ech. , Xi ?an 710048, Chi na LIAO Weili LU Peng LU O Xingqi p8 11
Abstract:In this paper, w e first use soft war e to anal y sis the f low field o f runner fo r F rancis t rubine under dif fer ent w or king conditions, w e can get the pressur e f ield and velocity field fro m the analysis. A fter that, by using this softw are we can use the pr essure field as the load which act on the turbine blades and calculate t he turbine blade rigidit y under dy namic wo rking co nditions and w e can g et the str ess and disto rtio n o f the r unner. T he analy sis result and disscusio n ar e g iven, which suppo rts t he re search on the char acteristic analysis for ro tor bear ing sys tem dynamics of larg e hydroelect ric machines.
Key words:F rancis tur bine; runner ; blades; flow field CA I Guo tian ZH ANG Lei p1 4
Abstract:Co mbination for ecasting model ar e pr acti cable in complex economic system w ith uncompleted info r mation. Because ener gy consumptio n system is complex and non linear, this paper combines neural netw or k and three models of G M (1, 1 , WPG M (1, 1 , pG M (1, 1 w ith ener gy consumptio n data, and pro po ses t he co mbination forecasting model of energ y consumptio n. T he r esult show s that this model can g ain o ptimized for ecasting v alue and can be taken as an effect ive too l to pr edict futur e ener g y consumption.
Key words:gr ay mo del; ar tificial neur al netw ork; co mbinat ion for ecasting model; energ y co nsumpt ion
Application of Relative Path in Unsteady Flow Study in Pelton Turbines H AN Feng qing
(Colleg e of Electr ic P ow er So ut h China U niv. o f T ech. ,
Research on Fuzzy Self learning Controller Used in Hydroelectric Generating Unit WANG Shu qing (Co llege of Hy dropow er &Infor mation Eng. , HU ST , Wuhan 430074, China LI Zhaohui YU AN Xiaohui p11 13
Abstract:Conventio nal co ntr oller canno t get go od co nt rolling perfor mance in the co ntr ol o f hy dr oelectr ic generating unit sy stem because the system is non linear and co mplicated. In the paper new fuzzy self learning con t roller is designed to contr ol hydro electric generat ing unit. T he designed new fuzzy co nt ro ller combines neur al net w or k into fuzzy reasoning system. F uzzy reasoning r ules and member funct ion may be tr ained on line v ia neural netw or k, w hich makes co ntr ol system hav ing the charac ter of self adapting. In order to accelerate lear ning and co nv erg ing quickly, parameter s may be adjusted accor ding to er ro r and er ro r chang e. Simulat ion experiment show s that the desig ned contr oller has stro ng er ro bust perfo rm ance and excellent static and dynamic per for mance.
Key words:hydroelect ric g enerating unit; fuzzy con t rol; neural netw or k; on line learning
ZH EN G Ailing XIAO
Yex iang KUBOTA Takashi p5 7 Guang zho u 510640, China
Abstract:T his pa per describes the basic concept o f the jet r elative path fro m the several design points o f v iew. Relative path o f w ater jet is a classical but impo r tant co ncept fo r the research of unsteady flow in Pelton tur bines. By apply ing the concept o f r elative path to the CF D of Pelto n turbines, especially combined with the ani mated-carto on met ho d, we can pr edict the var ious inter fer ences betw een the w ater jet and the bucket and lo sse s under the different bucket number N B , differ ent unit speed n DH
and different jet radius expansion r at e k Rj , re spect ively. T he co mbinat ion of r elativ e path and CFD is essential for t he design of Pelton turbines.
Key words:Pelt on turbine; relative pat h; w ater jet; unsteady flo w; jet r adius ex pansion rate
Study on Life Evluation Software of Water Tur of
相关推荐：
loading