1.控制系统的状态空间模型

Wewillcontinuetoimprovethecompany'sinternalcontrolsystem,andsteadyimprovementinabilitytomanageandcontrol,optimizebusinessprocesses,toensuresmoothprocesses,responsibilitiesinplace;tofurtherstrengtheninternalcontrols,playacontrolpostindependentoversightroleofevaluationcomplyingwiththird-partyresponsibility;toactivelymakeuseofinternalaudittoolsdetectpotentialmanagement,streamline,standardizerelatedtransactions,strengtheningoperationsinaccordancewithlaw.Deepeningtheinformationmanagementtoensurefullcommunicationzeroresistance.ToconstantlyperfectERP,andBFS++,andPI,andMIS,andSCM,informationsystembasedconstruction,fullintegrationinformationsystem,achievedinformationresourcesshared;toexpandPortalsystemapplicationofbreadthanddepth,playinformationsystemonenterpriseofAssistantrole;toperfectdailyrunmaintenanceoperationofrecords,promoteproblemreasonsanalysisandsystemhandover;tostrengtheningBFS++,andERP,andSCM,technologyapplicationoftraining,improveemployeesapplicationinformationsystemofcapacityandlevel.Humanisticcaretoensurezero.TostrengtheningHumanitiescare,continuestofostercompanywindclear,andgasare,andheartShunofcultureatmosphere;strengtheninglovehelpedtrapped,caredifficultemployees;carriedoutstyleactivities,richemployeeslife;strengtheninghealthandlabourprotection,organizationcareerhealthmedical,controlcareeragainst;continuestoimplementationpsychologicalwarningpreventionsystem,trainingemployeeshealthofcharacter,andstableofmoodandenterprisingofattitude,createdfriendlyfraternityofHumanitiesenvironment.Tostrengthenriskmanagement,ensurethatthebusinessofzerorisk.Tostrengthenedbusinessplansmanagement,willbusinessbusinessplanscovertoalllevel,ensurethebusinesscancontrolincontrol;tocloseconcernfinancial,andcoalelectriclinkage,andenergy-savingscheduling,nationalpolicytrends,strengtheningtrack,activeshould;toimplementationState-ownedassetsmethod,furtherspecificationbusinessfinancialmanagement;toperfectrisktubecontrolsystem,achievedriskrecognition,andmeasure,andassessment,andreport,andcontrolfeedbackofclosedringmanagement,improveriskpreventioncapacity.Tofurtherstandardizetrading,andstrivetoachieveaccordingtolaw,standardizeandfair.Innovationofperformancemanagement,toensurethatpotentialemployeeszerofly.Tostrengthenperformancemanagement,processcontrol,enhanceemployeeevaluationandlevelsofeffectivecommunicationtoimproveperformancemanagement.Tofurtherquantifyandrefineemployeestandards...Work,fullplayparty,andbranch,andmembersinfivetypeEnterpriseconstructionintheofcorerole,andfightingfortressroleandpioneermodelrole;tocontinuestostrengtheningfourgoodleadershipconstruction利用设在基坑边的固定泵输送砼到施工面，人工摊铺，平板振捣器振捣密实，用刮杠沿模板顶将砼刮平，并用木抹搓平压实，确保砼密实和表面平整。砼浇注时埋设支立模板及钢筋支架所需预埋铁件playlevelscadresinenterprisedevelopmentintheofbackbonebackbonerole;tofullstrengtheningmembersyouthwork,fullplayyouthemployeesincompanydevelopmentintheofforcerole;toimproveindependentCommissionagainstcorruptionworklevel,strengtheningonenterprisebusinesskeylinkofeffectivenessmonitored.,Andmaintainstability.Tofurtherstrengthenpublicityandeducation,improvetheoveralllegalsystem.Wemuststrengthensafetymanagement,establishandimprovetheeducation,supervision,andevaluationasoneofthetrafficsafetymanagementmechanism.ToconscientiouslysumuptheOlympicsecuritycontrols,promotingintegratedmanagementtoahigherlevel,higherstandards,ahigherlevelofdevelopment.Employees,todayislunarcalendaronDecember24,theoxBellisabouttoring,atthistimeofyear,weclearlyfeelthepulseoftheXXpowergenerationcompanytoflourish,tomoreclearlyhearXXpowergenerationcompaniesmatureandsymmetrybreathing.Recallingpastoneanotheracrossarailing,weareenthusiasticandfullofconfidence.Futuredevelopmentopportunities,wemoreexcitingfightmorespirited.Employees,letustogetheracross2013fullofchallengesandopportunities,tocreateagreen,low-costoperation,fullofhumanecareofaworld-classpowergenerationcompanyandworkhard!TheoccasionoftheSpringFestival,mysincerewishthatyouandthefamiliesofthestaffinthenewyear,goodhealth,happy,happy!Chapter1控制系统的状态空间模型1.1状态空间模型在经典控制理论中，采用n阶微分方程作为对控制系统输入量)(tu和输出量)(ty之间的时域描述，或者在零初始条件下，对n阶微分方程进行Laplace变换，得到传递函数作为对控制系统的频域描述，“传递函数”建立了系统输入量)]([)(tuLsU和输出量)]([)(tyLsY之间的关系。传递函数只能描述系统的外部特性，不能完全反映系统内部的动态特征，并且由于只考虑零初始条件，难以反映系统非零初始条件对系统的影响。现代控制理论是建立在“状态空间”基础上的控制系统分析和设计理论，它用“状态变量”来刻画系统的内部特征，用“一阶微分方程组”来描述系统的动态特性。系统的状态空间模型描述了系统输入、输出与内部状态之间的关系，揭示了系统内部状态的运动规律，反映了控制系统动态特性的全部信息。1.1.1状态空间模型的表示法例1-1（6P例1.1.1）如下面RLC（电路）系统。试以电压u为输入，以电容上的电压Cu为输出变量，列写其状态空间表达式。例1-1图RLC电路图解：由电路理论可知，他们满足如下关系)(d)(d)()()(d)(dtittuCtututRittiLCC经典控制理论：消去变量)(ti，得到关于)(tuC的2n阶微分方程：)(1)(1d)(dd)(d22tuLCtuLCttuLRttuCCC对上述方程进行Laplace变换：)()()2(20202sUsUssCWewillcontinuetoimprovethecompany'sinternalcontrolsystem,andsteadyimprovementinabilitytomanageandcontrol,optimizebusinessprocesses,toensuresmoothprocesses,responsibilitiesinplace;tofurtherstrengtheninternalcontrols,playacontrolpostindependentoversightroleofevaluationcomplyingwiththird-partyresponsibility;toactivelymakeuseofinternalaudittoolsdetectpotentialmanagement,streamline,standardizerelatedtransactions,strengtheni