水輪機常數 的英文怎麼說
中文拼音 [shuǐlúnjīchángshǔ]
水輪機常數
英文
turbine constant-
Numerical simulation of the steady cavitating turbulent flow in the whole flow passage of a kaplan turbine has been carried out by using a full cavitation model and a mixture two - phase flow model
摘要採用一種完整空化模型和一種混合流體兩相流模型，對軸流式水輪機全流道內的定常空化湍流流動進行了數值模擬。Commonly used type selection methods for high water head hydropower set with pelton turbine are evaluated by means of technical and economical parameter comparison method on the practice of jingganshan mingzhu first cascaded hydropower station
摘要結合井岡山明珠一級電站水輪發電機組選型設計實踐，採用技術和經濟參數比較法評述高水頭沖擊式機組選型常用方法。Taking itae criterion as evaluating function of hydro - generator fuzzy gpss, the head - and - tail alternate crossover ga is compared to classical ga. the results show that the evolutionary rate of the former is apparently higher than the latter under a same accuracy
以itae指標作為設計水電機組模糊gpss的評價函數，對首尾輪換交叉遺傳演算法與常規交叉遺傳演算法進行比較，結鄭州大學工學碩士論文果表明，對同樣的參數精度，前者的進化速度明顯高於後者。This machine adopts a whole stainless steel packing, the temperature is a number to show automatically control, heat or reduce the heat to all have a signal beacon manifestation, the electric current electric voltage size switches on to all have a manifestation, automatically feeding powder can adjust soon, spread to move part is the bean that the my plant produce product machine appropriation decelerate machine, electrical engineering is the steel plate adjustable type, the machine bottom use of upscale run a round, easy to ambulation, cool off part is automatically circulating water device, the bottom establishes keep of big capacity water tank and heat part is heat preservation economy energy type, normal production can economy in electricity quantity of 30 %, in fact use electricity charges and burn coal basic hold even
本機採用全不銹鋼包裝，溫度是數顯自動控溫，加溫或降溫均有信號燈顯示，電流電壓大小開機均有顯示，自動喂粉可以調速，傳動部分是本廠生產的豆製品機械專用減速機，電機架是鋼板可調型，機器底部用的高檔跑輪，便於移動，冷卻部分是自動循環水裝置，底部設有大容量的儲水箱，加溫部分是保溫節能型，正常生產可節約用電量的30 % ，其實用電費和燒煤基本持平。Conveninet traffic : seaport, railway, airport are all 4 kilometres afar each and there are over 30 domestic airline service from and to yantai. cargo ships lead to over 100 ports of 70 countries and regions. developed telecommunications : there are computercontrolled, digital and cubic modern telecommunications in the subdistrict. beautiful scenery : 3. 2 kilometres of fine coastline. pleasant climate : it is not severe cold in winter and not intense heat in summer with class a air quality. it is realy an ideal place for living
交通方便，距港口、火車站、國家一級口岸煙臺機場均在4公里以內，目前開通國內、國際航線30多條，貨輪可通往世界70多個國家和地區的100多個港口；通訊發達，轄區已建成交換程式控制化、傳輸數據化、聯絡立體化的現代通訊網路；風景秀麗，有長達3 . 2公里的優質海岸線；氣候宜人，冬無嚴寒，夏無酷暑，空氣質量常年處於一級水平，是人類居住、創業的地方。This paper deals with a lump - sum flow analysis of a spiral case, stay ring and vaneless annular walls for a small francis turbine by the latest cfd code
本文對常用的小型混流式水輪機渦殼、座環和無導葉環壁面內流動狀況用最新的cfd技術進行了整體數值解析。In this thesis, by the summarizing and analyzing about the present stability control study state of synchronous generator unit, it is achieved that the governor pss ( gpss ) is more suitable for the stability control of multi - machine system because of its better decoupled character than conventional pss ; the intelligence control theory is more reasonable than conventional methods to design the hydro - generator unit gpss because of the uncertainty of mathematical model of hydro - electricity system caused by intense nonlinear character and time - variant operating mode of hydro - turbine and water - hammer effect of hydraulic system
本文對同步發電機組穩定控制的研究現狀進行了綜述和分析。認為：與常規pss相比，調速器側pss （ gpss ）具有良好的解耦特性，更宜用於多機系統的穩定控制；由於水輪機特性的強非線性、工況的時變性以及引水系統的水擊效應所導致的水電系統數學模型的不確定性，採用智能控制理論設計水電機組gpss較常規設計方法更為合理。Firstly, developing status of routine test of hydroelectric generation set and trouble diagnosing in china and abroad are introduced ; secondly, the article specifies the structure of cims and basic theory and technology. cims is composed of monitoring apparatus and analyzing system, signal processing uses fft and df ; in the end, function of cims is specified. monitoring apparatus is designed of 80c196kb and 89c52, the monitoring soft adopts microsoft visual basic 6. 0 and the database is developed of microsoft access 2000
文章首先介紹了水電機組常規試驗及故障診斷國內外發展現狀；然後給出了系統的結構框架和理論技術說明，本系統由監測裝置和軟體分析系統組成，信號處理採用了快速傅利葉變換和數字濾波技術；最後詳細分析了系統功能，監測裝置使用80c196kb和89c52單片機技術開發，監測軟體使用visualbasic6 . 0語言編制，數據庫採用microsoftaccess2000 ，監測系統分為三大部分：運行狀態監測模塊、故障分析及數據處理模塊、水輪發電機組常規試驗模塊。So, it is indispensable to investigate thoroughly the three dimensional viscous flow through the turbine
為此，對水輪機內部流動狀況進行三維粘性流動數值解析是非常必要的。After briefly introduce the basic genetic algorithm ( ga ) theory, aimming at the " prematurity " of basic genetic algorithm, we put forward a new improved genetic algorithm, the basic genetic algorithm combine simulate anneal ing ( gasa ), to meliorate the local search ability of basic genetic algorithm. because many design problems, such as the preliminary fuzzy rule and input and output membership fuction are hard to gain and the learni ng process of fuzzy neural network ( fnn ) is slow and local optimization, we design the fuzzy neural network excitation controllers of turbine generators with genetic algorithm combine simulate anneal ing ( gasa )
本文首先介紹了水輪發電機勵磁控制方式和軟計算理論的發展，然後介紹了遺傳演算法的基本理論，針對基本遺傳演算法存在的「早熟」現象，介紹了一種遺傳演算法結合模擬退火的改進型遺傳演算法，改善了基本遺傳演算法的局部搜索能力。鑒于常規模糊神經神經網路勵磁控制器設計方法中存在著初始模糊規則和輸入輸出隸屬度函數難以確定以及模糊神經網路訓練緩慢和難以達到全局最優等問題，利用遺傳演算法結合模擬退火的改進型遺傳演算法來設計模糊神經網路勵磁控制器。分享友人