水泵水轮机全特性描述与可逆式机组非线性控制分析

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1、华中科技大学硕士学位论文foundationforthestudyofreversibleunitnonlinearcontrollaw.Nonlinearmathematicalmodelofreversibleunitwassetupincombinationwiththepumpturbine,waterdiversionsystem,powergenerationmotorandactuator.Numericmethodforcomputingthetransitionprocesswasstudied,andthereliab

2、ilityofnumericalcalculationmethodisverifiedbysimulationexperiment.Secondly,inviewofthereversibleunitsofnonlinearmathematicalmodelisestablished,theexactlinearizationtheorywasappliedtogetthenonlinearcontrollawofthereversibleunit.Simulationexperimentweredoneunderseveraltypic

3、allargefluctuationsconditionssuchasturbinestart-upcondition,pump-offcondition,pumpstart-to-startcondition.Andthesimulationresultsshowthatthenonlinearcontrolrulecangetexcellentdynamicperformance.Keywords:Pumpturbine,Spacesurfaceofcompletecharacteristics,Transitionprocess,L

4、argefluctuations,Nonlinearcontrol.III华中科技大学硕士学位论文目录摘要...................................................................................................................IABSTRACT...............................................................................................

5、......II目录................................................................................................................IV1绪论.............................................................................................................11.1课题来源与研究背景.......................

6、......................................................11.2国内外研究现状.....................................................................................21.3本文研究的主要内容及章节安排.........................................................62水泵水轮机全特性空间曲面描述...............................

7、...............................92.1水泵水轮机全特性空间曲面.................................................................92.2全特性空间曲面的构建.....................................................................102.3水泵水轮机全特性空间曲面特征线绘制...........................................142.4本章小结...

8、............................................................................................183可