基于SWISS整流器的新型LC滤波器阻尼控制策略
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摘要
SWISS整流器是一种新型三相降压型功率因数校正整流拓扑,适合于高功率电动汽车充电场合。为了达到单位功率因数运行,SWISS整流器的输入电流应尽可能地跟踪其电压,其电流总谐波失真(THD)应满足相关要求。结合SWISS整流器的工作原理,分析了网侧电流畸变和振荡是由于LC滤波器在其共振频率下阻尼因数很小而引起的。构建LC滤波器传递函数并利用系统传递函数等效原则,提出了一种适用于SWISS整流器的虚拟电阻阻尼控制方法。对比虚拟阻尼控制策略与传统的无源阻尼控制可知,虚拟电阻控制策略显著降低了THD,不消耗系统能量,还有助于提高了系统的可靠性和效率。在PLECS软件中,搭建SWISS整流器输入LC滤波的虚拟阻尼控制仿真模型,仿真和实验结果证明所提出的控制策略正确、有效、可靠。
SWISS rectifier is a new three-phase buck power factor correction(PFC)rectifier,which is suitable for high-power electric vehicle charging applications. To achieve a unity power factor operation,the input current of SWISS recti-fier should track its voltage as much as possible,and its current's total harmonic distortion(THD)should also meet relevant requirements. With the combination of the working principle of SWISS rectifier,it is suggested that the grid cur-rent's distortion and oscillation are caused by the small damping factor of the LC filter oscillating at resonant frequency.An LC filter transfer function is constructed,and according to the equivalence principle of the system transfer function,a damping control method with a virtual resistor is proposed,which is applicable to SWISS rectifier. Compared with theconventional passive damping control method,the new strategy reduces the THD obviously;moreover,it does not con-sume extra energy,and helps to improve the reliability and efficiency of the system. An LC filter virtual damping controlsimulation model was built based on SWISS rectifier using software PLECS. Simulation and experiment results showedthat the proposed control strategy was correct,effective,and reliable.
SWISS rectifier is a new three-phase buck power factor correction(PFC)rectifier,which is suitable for high-power electric vehicle charging applications. To achieve a unity power factor operation,the input current of SWISS recti-fier should track its voltage as much as possible,and its current's total harmonic distortion(THD)should also meet relevant requirements. With the combination of the working principle of SWISS rectifier,it is suggested that the grid cur-rent's distortion and oscillation are caused by the small damping factor of the LC filter oscillating at resonant frequency.An LC filter transfer function is constructed,and according to the equivalence principle of the system transfer function,a damping control method with a virtual resistor is proposed,which is applicable to SWISS rectifier. Compared with theconventional passive damping control method,the new strategy reduces the THD obviously;moreover,it does not con-sume extra energy,and helps to improve the reliability and efficiency of the system. An LC filter virtual damping controlsimulation model was built based on SWISS rectifier using software PLECS. Simulation and experiment results showedthat the proposed control strategy was correct,effective,and reliable.
引文
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[2]Soeiro T B,Friedli T,Kolar J W.Design and implementa-tion of a three-phase Buck-type third harmonic current in-jection PFC rectifier SR[J].IEEE Trans on Power Elec-tronics,2013,28(4):1608-1621.
[3]许津铭,谢少军,肖华锋(Xu Jinming,Xie Shaojun,XiaoHuafeng).LCL滤波器有源阻尼控制机制研究(Re-search on control mechanism of active damping for LCLfilters)[J].中国电机工程学报(Proceedings of theCSEE),2012,32(9):27-33.
[4]彭咏龙,黄潇潇,李亚斌(Peng Yonglong,Huang Xiaoxi-ao,Li Yabin).三相Buck型SVPWM整流器LC振荡阻尼混合控制(Damping of LC oscillation using a hybridcombination approach for three-phase Buck-type SVPWMrectifier)[J].电力系统保护与控制(Power System Protec-tion and Control),2014,42(1):90-95.
[5]赵仁德,赵强,李芳,等(Zhao Rende,Zhao Qiang,LiFang,et al).LCL滤波的并网变换器中阻尼电阻影响分析(Impact of damping resistance on grid inverter withLCL-filter)[J].电力系统及其自动化学报(Proceedingsof the CSU-EPSA),2009,21(6):112-116.
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[7]陈瑶,金新民,童亦斌(Chen Yao,Jin Xinmin,Tong Yib-in).三相电压型PWM整流器网侧LCL滤波器(Grid-side LCL-filter of three-phase voltage source PWM rectifi-er)[J].电工技术学报(Transactions of China Electrotech-nical Society),2007,22(9):124-129.
[8]鲍陈磊,阮新波,王学华,等(Bao Chenlei,Ruan Xinbo,Wang Xuehua,et al).基于PI调节器和电容电流反馈有源阻尼的LCL型并网逆变器闭环参数设计(Design ofgrid-connected inverters with LCL filter based on PI regu-lated and capacitor current feedback active damping)[J].中国电机工程学报(Proceedings of the CSEE),2012,32(25):133-142.
[9]张宪平,林资旭,李亚西,等(Zhang Xianping,Lin Zixu,Li Yaxi,et al).LCL滤波的PWM整流器新型控制策略(A novel control strategy for PWM rectifier with LCL fil-ter)[J].电工技术学报(Transactions of China Electrotech-nical Society),2007,22(2):74-77.
[10]Liserre M,Dell A A,Blaabjerg F.Stability improvementsof an LCL-filter based three-phase active rectifier[C]//IEEE 33rd Annual IEEE Power Electronics SpecialistsConference.Cairns,Australlia,2002:1195-1201.
[11]张学广,刘义成,王瑞,等(Zhang Xueguang,LiuYicheng,Wang Rui,et al).一种新型的PWM变换器LCL滤波器有源阻尼控制策略(A novel active damping control strategy for PWM converter with LCL filter)[J].电工技术学报(Transactions of China Electrotechnical Soci-ety),2011,26(10):188-192.
[12]Li Yun Wei,Loh Poh Chiang,Blaabjerg Frede,et al.In-vestigation and improvement of transient response of DVRat medium voltage level[C]//21st Annual IEEE AppliedPower Electronics Conference and Exposition.Dollas,USA,2006:1074-1080.
[13]Dahono P A.A method to damp oscillations on the inputLC filter of current-type AC-DC PWM converters by usinga virtual resistor[C]//25th International Telecommunica-tions Energy Conference.Yokohama,Japan,2003:757-761.
[14]Tan Longcheng,Li Yaohua,Xu Wei,et al.An improvedcontrol method for PWM current source rectifier with ac-tive damping function[C]//IEEE International Conferenceon Industrial Technology.Churchill,Australia,2009.
[15]周培东,赵宇,李继川,等(Zhou Peidong,Zhao Yu,Li Ji-chuan,et al).电网谐波下PWM变换器的谐波电流抑制(Harmonic current suppression strategy for PWM grid-connected converter under harmonic grid voltage condi-tions)[J].电力系统及其自动化学报(Proceedings of theCSU-EPSA),2016,28(5):91-96.
[16]Ferreira Pinto S,Fernando Silva J.Input filter design forsliding mode controlled matrix converters[C]//IEEE Annu-al Power Electronics Specialists Conference.Vancouver,Canada,2001:648-653.
[17]中国汽车技术研究中心,日产(中国)投资有限公司,东风汽车有限公司.中国新能源汽车产业发展报告(2014)[M].北京:社会科学文献出版社,2014.
[18]Argo Dahono P,Purwadi A,Kataoka T.A new approach toharmonic analysis of three-phase current-type PWM con-verters[C]//IEEE Industry Applications Conference.NewOrleans,USA,1997:1487-1495.
[19]Aggeler D,Canales F,Zelaya-De La Parra H,et al.Ultra-fast DC-charge infrastructures for EV-mobility and futuresmart grids[C]//IEEE Innovative Smart Grid TechnologyConference.Gothenburg,Sweden,2010.
[2]Soeiro T B,Friedli T,Kolar J W.Design and implementa-tion of a three-phase Buck-type third harmonic current in-jection PFC rectifier SR[J].IEEE Trans on Power Elec-tronics,2013,28(4):1608-1621.
[3]许津铭,谢少军,肖华锋(Xu Jinming,Xie Shaojun,XiaoHuafeng).LCL滤波器有源阻尼控制机制研究(Re-search on control mechanism of active damping for LCLfilters)[J].中国电机工程学报(Proceedings of theCSEE),2012,32(9):27-33.
[4]彭咏龙,黄潇潇,李亚斌(Peng Yonglong,Huang Xiaoxi-ao,Li Yabin).三相Buck型SVPWM整流器LC振荡阻尼混合控制(Damping of LC oscillation using a hybridcombination approach for three-phase Buck-type SVPWMrectifier)[J].电力系统保护与控制(Power System Protec-tion and Control),2014,42(1):90-95.
[5]赵仁德,赵强,李芳,等(Zhao Rende,Zhao Qiang,LiFang,et al).LCL滤波的并网变换器中阻尼电阻影响分析(Impact of damping resistance on grid inverter withLCL-filter)[J].电力系统及其自动化学报(Proceedingsof the CSU-EPSA),2009,21(6):112-116.
[6]李敏,徐群(Li Min,Xu Qun).基于IDA-PBC的LCL滤波并网逆变器控制(Control strategy based on IDA-PBC forgrid-connected inverter with LCL filter)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2014,26(4):50-55,80.
[7]陈瑶,金新民,童亦斌(Chen Yao,Jin Xinmin,Tong Yib-in).三相电压型PWM整流器网侧LCL滤波器(Grid-side LCL-filter of three-phase voltage source PWM rectifi-er)[J].电工技术学报(Transactions of China Electrotech-nical Society),2007,22(9):124-129.
[8]鲍陈磊,阮新波,王学华,等(Bao Chenlei,Ruan Xinbo,Wang Xuehua,et al).基于PI调节器和电容电流反馈有源阻尼的LCL型并网逆变器闭环参数设计(Design ofgrid-connected inverters with LCL filter based on PI regu-lated and capacitor current feedback active damping)[J].中国电机工程学报(Proceedings of the CSEE),2012,32(25):133-142.
[9]张宪平,林资旭,李亚西,等(Zhang Xianping,Lin Zixu,Li Yaxi,et al).LCL滤波的PWM整流器新型控制策略(A novel control strategy for PWM rectifier with LCL fil-ter)[J].电工技术学报(Transactions of China Electrotech-nical Society),2007,22(2):74-77.
[10]Liserre M,Dell A A,Blaabjerg F.Stability improvementsof an LCL-filter based three-phase active rectifier[C]//IEEE 33rd Annual IEEE Power Electronics SpecialistsConference.Cairns,Australlia,2002:1195-1201.
[11]张学广,刘义成,王瑞,等(Zhang Xueguang,LiuYicheng,Wang Rui,et al).一种新型的PWM变换器LCL滤波器有源阻尼控制策略(A novel active damping control strategy for PWM converter with LCL filter)[J].电工技术学报(Transactions of China Electrotechnical Soci-ety),2011,26(10):188-192.
[12]Li Yun Wei,Loh Poh Chiang,Blaabjerg Frede,et al.In-vestigation and improvement of transient response of DVRat medium voltage level[C]//21st Annual IEEE AppliedPower Electronics Conference and Exposition.Dollas,USA,2006:1074-1080.
[13]Dahono P A.A method to damp oscillations on the inputLC filter of current-type AC-DC PWM converters by usinga virtual resistor[C]//25th International Telecommunica-tions Energy Conference.Yokohama,Japan,2003:757-761.
[14]Tan Longcheng,Li Yaohua,Xu Wei,et al.An improvedcontrol method for PWM current source rectifier with ac-tive damping function[C]//IEEE International Conferenceon Industrial Technology.Churchill,Australia,2009.
[15]周培东,赵宇,李继川,等(Zhou Peidong,Zhao Yu,Li Ji-chuan,et al).电网谐波下PWM变换器的谐波电流抑制(Harmonic current suppression strategy for PWM grid-connected converter under harmonic grid voltage condi-tions)[J].电力系统及其自动化学报(Proceedings of theCSU-EPSA),2016,28(5):91-96.
[16]Ferreira Pinto S,Fernando Silva J.Input filter design forsliding mode controlled matrix converters[C]//IEEE Annu-al Power Electronics Specialists Conference.Vancouver,Canada,2001:648-653.
[17]中国汽车技术研究中心,日产(中国)投资有限公司,东风汽车有限公司.中国新能源汽车产业发展报告(2014)[M].北京:社会科学文献出版社,2014.
[18]Argo Dahono P,Purwadi A,Kataoka T.A new approach toharmonic analysis of three-phase current-type PWM con-verters[C]//IEEE Industry Applications Conference.NewOrleans,USA,1997:1487-1495.
[19]Aggeler D,Canales F,Zelaya-De La Parra H,et al.Ultra-fast DC-charge infrastructures for EV-mobility and futuresmart grids[C]//IEEE Innovative Smart Grid TechnologyConference.Gothenburg,Sweden,2010.