基于Simulink的风电机组控制系统设计与仿真

华北电力大学本科毕业设计（论文）毕业设计(论文)题目基于Simulink的风电机组控制系统设计与仿真院系机械工程系专业班级学生姓名指导教师二〇一六年六月华北电力大学本科毕业设计（论文）I基于Simulink的风力发电组控制系统的设计与仿真摘要现如今全球人口不断增长而且经济发展对能源需求的增加，传统能源的使用导致能源短缺和环境问题日益严重[1]。而化石性能源的稀缺性和不可再生性使其价格日益上涨，并且化石能源燃烧产生有害气体，污染环境、危害人体健康、导致全球变暖[2]。风能是一种可再生能源，风力发电技术是可再生能源开发中技术成熟程度、规模化开发程度、商业化程度最高的发电方式。风能是清洁无污染的可再生能源，而且风能资源分布广泛，总量十分可观。全球可利用的风能约为MW，比地球上可开发的水能总量大10倍，风能将成为21世纪的主要能源之一[3]。本文主要介绍了风力发电的主要原理，简单介绍了风力发电机的气动和机械系统模型，最后着重介绍双馈风力发电机组的原理以及建模。由于使用MATLAB/Simulink的建模方式，本文还介绍了Simulink的建模方式，以及简要介绍在Simulink环境下对双馈异步风力发电机控制系统的建模过程，对建模过程中需要对控制系统参数的设定进行介绍。最后将双馈风力发电机的仿真系统进行仿真设计，得到对应电网与风力机的相关输出特性，还有风力机转矩与风速的关系图。观察风力机在不同工作状态下的风速与转矩特征。仿真的结果证明，对双馈风力发电机组控制系统仿真是比较符合实际的，仿真结果具有实际指导意义。关键词：风力机、双馈发电机、控制系统、Simulink、仿真华北电力大学本科毕业设计（论文）IISIMULATIONOFTHEWINDTURBINECONTROLSYSTEMBASEDONSIMULINKAbstractAstheglobalpopulationgrowthandeconomicdevelopmentontheincreaseofenergydemand,theuseoftraditionalenergyisfacingincreasinglysevereenergyshortageandenvironmentalissues.Forfossilenergyisscarcityandirrefragable，thesereasonmakeitspricerising,andfossilfuelcombustionproducesharmfulgas,pollutetheenvironment,endangerhumanbodyhealth,andleadtoglobalwarming.Windenergyisakindofrenewableenergy,andwindpowerisrenewableenergywithtechnologymaturity,scaledevelopmentdegree,inmostwaysofpowergeneration.Windenergyisacleanpollution-freerenewableenergyandwindenergyresourcesarewidelydistributed,theamountisveryconsiderable.GlobaluseofwindpowerisaboutMW,largerthantheamountofwateronearthcandevelop10times,windpowerwillbecomeoneofthemainenergyinthe21stcentury.Windpowerismainlyintroducedinthispaper,themainprincipleofsimpleintroducedthepneumaticandmechanicalsystemmodelofwindturbine,inthebackwithemphasisontheprincipleofthedouble-fedinductionwindgeneratorandmodeling.DuetotheuseofMATLAB/Simulinkmodelingmethod,thispaperalsointroducedtheSimulinkmodeling,aswellasabriefintroductiontoinSimulinkenvironmentofdoubly-fedasynchronouswindturbinecontrolsystemmodelingprocess,tobeusedintheprocessofmodelingelementsarebrieflyintroduced。Finallymakedoubly-fedasynchronouswindturbinesimulationsystemrunning，getthecorrespondinggriddataandthecharacteristicsofthewindturbine,andwindspeedandwindturbinetorquediagram.Observerthecharacteristicsunderdifferentworkingconditionsofwindspeedandwindturbinetorque，thesimulationresultsshowthatthesimulationofdouble-fedinductionwindgeneratorishaspracticalguidingsignificance.Keywords：windturbine、double-fedgenerator、controlsystem、Simulink、simulation华北电力大学本科毕业设计（论文）III目录摘要................................................................IAbstract............................................................II1绪论..............................................................11.1引言......................................................................................................................11.2风力发电发展史以及国内发展现状..................................................................11.3风力发电机组的简单分类..................................................................................31.4风力机的仿真技术的作用..................................................................................31.5双馈发电机的应用与发展..................................................................................31.6本文的主要研究内容..........................................................................................42风力机的气动与机械系统............................................62.1概述......................................................................................................................62.2风速模型.........................................................................................................62.3风轮模型..............................................................................................................8§2.4本章小结............................................................................................................93双馈发电机组的原理以及控制策略...................................103.1概述....................................................................................................................103.2双馈风力发电机组的运行原理........................................................................103.3双馈风力发电机的运行状态以及功率的关系...............................................123.4PWM换流器的数学模型..................................................................................133.4.1PWM换流器在三相静止坐标系下的数学模型............................................143.5双馈风力发电机组的控制策略.......................................................................143.5.1概述............................................................................................................143.5.2换流器的控制策略....................................................................................153.6本章小结............................................................................................................174基于Simulink的风电机组控制系统的设计与仿真......................184.1概述....................................................................................................................184.2Simulink对风电系统仿真的介绍.....................................................................184.3双馈风力发电机组的仿真过程.................