矩形波交流原油脱水电源的研究

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1、矩形波交流原油脱水电源黄欣(材料加工工程)牛俊邦(副教授)摘要针对目前国内原油脱水电源的现状，从提高原油脱水效率的角度出发，设计了矩形波交流原油脱水电源。本文对电源进行了硬件和软件部分的设计。电源硬件部分由主电路、控制电路、驱动电路和保护电路四部分组成。主电路的设计采用全桥式逆交结构，阐述了其工作原理，并对IGBT功率器件和变压器进行了参数计算。控制电路主要由TIA94芯片和AT89C5l单片机组成，形成闭环控制系统。控制IGBT器件的PWM波由以1r1494为核心的PWM控制电路产生；驱动电路选用I

2、GBT专用驱动模块2SD315A进行控制信号的放大；保护电路包括过压保护、过流保护、短路保护。软件部分对以AT89C51单片机为核心的防偏磁控制电路进行了初始化参数的设计和单片机的编程。进行防偏磁电路的软硬件设计是本文控制电路设计的重点。实验结果表明，输出波形基本达到了理论设计参数的要求，系统能够可靠地工作，控制效果较好。最后，对电源进行了实验并对实验结果进行了分析，实验室实验中电源输出波形基本为交流矩形波，与设想的基本一致；现场实验是对脱水效果的实验，矩形波交流原油脱水电源脱水效果良好，完全符合国家

3、标准。关键词：原油脱水，防偏磁，TL494芯片，AT89C51单片机StudyDevelopmentofCrudeOilDehydrationPowerSupplywithRectangle-waveAlternateCurrentHuangXin(MaterialsProcessingEngineering)DirectedbyAssociateProfessorNiuJun·bangAbstractConsideringthepresentsituationofelectricdehydratio

4、npowerresouiv七ofcrudeoil,anelectricdehydrationpowerl'eSOUl'OeofffI'眦looilwhich锄outputgreatpowerisdesignedfromtheangleofenergycottservationandtheperformance-c灯stratio．Inthispap％theelectricdehydrationpower代氍黼isdesignedinthehj瞰1w玳andsoftwa陀part．Thehardware

5、panismadeofmaincircuit,drivecircuit,controlcircuitandprotectioncircuit．Thefullbridgestructureisusedinthedesignofmaincircuit．Thefunctionofmaincircuitispresented,andtheparametersofIGBTpowercomponentsandtransformer骶calculated．Thecontrolcircuitagemainlycomp

6、osedoftheTL494moduleandtheAT89C51single-chipplDc鹤sof，whichformsaclosedloopeon(rolsystem．ThePWMWaVI爱tcontrollingIGBTcomponentsalegeneratedbyPWMcontrolci_rcuitwhichismainlycomposedoftheTL494module．TheIGBTdrivecircuitus船thespecial-purpose2SD315AmodcletOcar

7、ryOiltheamplificationofcontrolsignal．ProtectioncircuitincludesOVervoltageprotection,OVercurrentprotection,short-cirenitprotectio也Theso,warepartdesignstheinitializationparametersseparatelyaccordingtoaria-biasingcontrollingcircuitwhichismainlycomposedofAT

8、89C51single-chipprocessoranddoestheprogrammingofmicrocontrolledunit．Theexperimentalresultsindicatethatthe州I眦waveformⅡ嘴cstherequirementofthetheoreticaldesignparmnetersbasicallyandthesystemcanworkreliablyandcontrolwell．Finally,thet