三态滞环控制的并网光伏发电系统研究的开题报告【摘要】随着环保意识的提高和能源消费的增加，光伏发电系统成为了一种受到广泛关注的清洁能源之一。但由于光伏发电系统的输出功率和输出电压波动大，使得光伏发电系统并网时存在一些问题，如电网质量问题和电网安全问题等。因此，对光伏发电系统进行控制和优化是非常重要的。本文针对光伏发电系统的控制问题进行研究，主要研究三态滞环控制在并网光伏发电系统中的应用。首先，介绍了光伏发电的基本工作原理和并网光伏发电系统的结构。然后，阐述了三态滞环控制的原理和优点，并说明其在光伏发电系统中的应用。最后，详细讨论了利用三态滞环控制实现光伏发电系统MPPT控制和输出电压稳定控制的方法，并进行了实验验证。实验结果表明，利用三态滞环控制可以有效解决光伏发电系统的电网质量问题和电网安全问题，提高了光伏发电系统的性能和可靠性。因此，三态滞环控制在光伏发电系统中具有很高的应用价值和推广价值。【关键词】光伏发电；并网；三态滞环控制；MPPT控制；输出电压稳定控制。【Abstract】Withtheincreaseofenvironmentalawarenessandenergyconsumption,photovoltaicpowersystemhasbecomeoneofthewidelyconcernedcleanenergy.However,duetothelargefluctuationsinoutputpowerandoutputvoltageofthephotovoltaicpowersystem,therearesomeproblemsinthegrid-connectedphotovoltaicpowersystem,suchasgridqualityandgridsafety.Therefore,itisveryimportanttocontrolandoptimizethephotovoltaicpowersystem.Inthispaper,westudythecontrolproblemofthephotovoltaicpowersystem,mainlyfocusingontheapplicationofthethree-statehysteresiscontrolinthegrid-connectedphotovoltaicpowersystem.Firstly,thebasicworkingprincipleofphotovoltaicpowergenerationandthestructureofgrid-connectedphotovoltaicpowersystemareintroduced.Then,theprincipleandadvantagesofthree-statehysteresiscontrolareelaborated,anditsapplicationinphotovoltaicpowersystemisexplained.Finally,themethodofusingthree-statehysteresiscontroltorealizeMPPTcontrolandoutputvoltagestabilitycontrolofphotovoltaicpowersystemisdiscussedindetail,andexperimentalverificationiscarriedout.Theexperimentalresultsshowthattheuseofthree-statehysteresiscontrolcaneffectivelysolvethegridqualityandgridsafetyproblemsofphotovoltaicpowersystem,andimprovetheperformanceandreliabilityofphotovoltaicpowersystem.Therefore,three-statehysteresiscontrolhasahighapplicationvalueandpromotionvalueinphotovoltaicpowersystem.【Keywords】photovoltaicpowergeneration;grid-connected;three-statehysteresiscontrol;MPPTcontrol;outputvoltagestabilitycontrol.