ElectricalAutomation《电气自动化》2023年第45卷第1期电源技术PowerSupplyTechniques行波管高压电源数字控制技术研究左姗姗1,2,徐春雨1,杨毅1,2,赵斌1,2,王刚1,2(1.中国科学院空天信息创新研究院,北京100190;2.中国科学院大学电子电气与通信工程学院,北京100049)摘要:行波管放大器在卫星通信和国防等领域的应用越来越广泛,行波管电源系统对输出电压稳定性的要求也越来越高,但传统的模拟控制开关电源存在诸多缺点,无法满足需求。为此,设计了一个基于现场可编程逻辑门阵列(fieldprogrammablegatearray,FPGA)的数字控制开关电源,功率主电路采用Buck型变换器,控制环路采用电压环反馈控制。在MATLAB/Simulink仿真的基础上,结合FPGA对系统整体性能进行测试。结果表明,电源系统在不同工作条件下的输出电压稳定,瞬态响应调节迅速,总体性能满足行波管放大器的设计要求。关键词:行波管放大器;比例积分微分控制;Buck变换器;数字控制DOI:10.3969/j.issn.1000-3886.2023.01.022[中图分类号]TN2[文献标志码]A[文章编号]1000-3886(2023)01-0078-03ResearchonDigitalControlTechnologyofTravelingWaveTubeHighVoltagePowerSupplyZuoShanshan1,2,XuChunyu1,YangYi1,2,ZhaoBin1,2,WangGang1,2(1.AerospaceInformationResearchInstitute,ChineseAcademyofSciences,Beijing100190,China;2.SchoolofEelectronic,ElectrialandCommunicationEngineeringUniversityofChineseAcademyofSciences,Beijing100049,China)Abstract:Travellingwavetubeamplifierismoreandmorewidelyusedinsatellitecommunications,nationaldefenseandotherfields.Therequirementsoftravelingwavetubepowersupplysystemforoutputvoltagestabilityarehigherandhigher.However,thetraditionalanalogcontrolswitchingpowersupplyhasmanyshortcomingsandcannotmeettheneeds.Tothisend,anfieldprogrammblegatearray(FPGA)-baseddigitalcontrolswitchingpowersupplywasdesigned.ThemainpowercircuitadoptedaBuckconverter,andthecontrolloopappliedvoltageloopfeedbackcontrol.BasedonMATLAB/Simulinksimulation,theoverallperformanceofthesystemwastestedwithFPGA.Theresultsshowthattheoutputvoltageofthepowersupplysystemisstableunderdifferentworkingconditions,thetransientresponseisadjustedquickly,andtheoverallperfo...