2023年第37卷第4期测试技术学报Vol.37No.42023(总第160期)JOURNALOFTESTANDMEASUREMENTTECHNOLOGY(SumNo.160)文章编号:1671-7449(2023)04-0310-06①改进型SPWM调制下的整流器参数设计与仿真研究胡春龙(陕西国防工业职业技术学院智能制造学院,陕西西安710300)摘要:针对整流器在电网谐波补偿上受主参数影响变化较大,且在调制过程中易产生高次谐波和非线性等问题,以三相电压型PWM整流器为研究对象,提出了一种按照抑制电流谐波要求设计交流电感和依据直流电压对跟随性、抗扰性要求设计直流电容的方法,并对整定后的电感、电容参数在影响补偿性能方面进行了讨论。在整流器的控制策略上提出了一种动态调节的改进型SPWM算法,在SPWM算法中针对调制度的变化量对采样到的信号进行变换,通过DSP实现脉冲的动态调制。在Matlab/Simulink中对系统进行了仿真研究,结果表明系统参数设计和调制方法稳定可靠,动静态性能良好。关键词:PWM整流器;谐波补偿;主参数;SPWM算法中图分类号:TM461文献标识码:Adoi:10.3969/j.issn.1671-7449.2023.04.006ParameterDesignandSimulationofRectifierUnderImprovedSPWMModulationHUChunlong(CollegeofIntelligentManufacturing,ShaanxiInstituteofTechnology,Xi’an710300,China)Abstract:Aimingattheproblemsthattherectifierisgreatlyaffectedbythemainparametersinthepowergridharmoniccompensation,anditiseasytoproducehigh-orderharmonicsandnonlinearityinthemodulationprocess,takingthethree-phasevoltagesourcePWMrectifierastheresearchobject,amethodofdesigningACinductanceaccordingtotherequirementsofrestrainingcurrentharmonicsandDCcapacitanceaccordingtotherequirementsofDCvoltageonfollow-upandimmunityisproposed.Theinfluenceofcapacitanceparametersoncompensationperformanceisdiscussed.Inthecontrolstrategyoftherectifier,animprovedSPWMalgorithmwithdynamicregulationisproposed.IntheSPWMalgo-rithm,thesampledsignalistransformedaccordingtothechangeinmodulationsystem,andthedynam-icmodulationofpulseisrealizedbyDSP.ThesystemissimulatedinMatlab/Simulink.Thesimulationresultsshowthatthesystemparameterdesignandmodulationmethodarestableandreliable,andthedynamicandstaticperformanceisgood.Keywords:PWMrectifier;harmoniccompensation;mainparameters;SPWMalgorithm0引言随着电力电...
