整流模式下BWPT系统功率变换器的等效输入阻抗分析
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摘要
由于功率变换器的等效负载阻抗对双向无线电能传输(BWPT)系统的特性分析有影响,因此对该等效负载阻抗进行计算有重要意义。文中首先建立了采用双向全桥功率变换器和LCC补偿的BWPT系统模型;然后,构建了工作于整流模式的功率变换器的等效电路,并对其整流工况进行了分析;进而,推导了双向功率变换器等效负载阻抗的计算方法;最后,搭建了试验平台,对建立的模型和提出的方法进行了验证。结果表明:工作于整流模式的双向功率变换器的等效负载阻抗包含电阻和电抗两部分,且它们的值与开关器件并联电容、补偿电感以及负载有关,所提出的方法能有效地对该等效阻抗进行计算,进而有助于准确地分析系统特性。
The equivalent load impedance of power converter has an influence on the characteristic analysis of bidirectional wireless power transfer(BWPT)system.So the calculation of equivalent load impedance is of great significance.Firstly,this paper builds a model of BWPT system with bidirectional power converters and LCC compensation networks.And the equivalent circuit of the power converter working in the rectification mode is established.Then,the equivalent circuit rectification operation is analyzed.Furthermore,the calculation method of equivalent load impedance of bidirectional power converters is derived.Finally,a test platform is developed to verify the proposed model and method.The result shows that,when the bidirectional power converter operates in the rectification mode,its equivalent impedance includes resistance and reactance parts,and both of them are related to the parallel capacitance of switch devices,compensation inductance and system load.The proposed method can effectively calculate the equivalent load impedance,which can contribute to accurately analyze the system characteristics.
The equivalent load impedance of power converter has an influence on the characteristic analysis of bidirectional wireless power transfer(BWPT)system.So the calculation of equivalent load impedance is of great significance.Firstly,this paper builds a model of BWPT system with bidirectional power converters and LCC compensation networks.And the equivalent circuit of the power converter working in the rectification mode is established.Then,the equivalent circuit rectification operation is analyzed.Furthermore,the calculation method of equivalent load impedance of bidirectional power converters is derived.Finally,a test platform is developed to verify the proposed model and method.The result shows that,when the bidirectional power converter operates in the rectification mode,its equivalent impedance includes resistance and reactance parts,and both of them are related to the parallel capacitance of switch devices,compensation inductance and system load.The proposed method can effectively calculate the equivalent load impedance,which can contribute to accurately analyze the system characteristics.
引文
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[18]COLAK K,ASA E,BOJARSKI M,et al.A novel phase-shift control of semi-bridgeless active rectifier for wireless power transfer[J].IEEE Transactions on Power Electronics,2015,30(11):6288-6297.
[19]李均锋,廖承林,王丽芳,等.基于LCCL的电动汽车无线充电系统最大效率与传输功率解耦设计研究[J].电工技术学报,2015,30(增刊1):199-203.LI Junfeng,LIAO Chenglin,WANG Lifang,et al.Decoupling method of maximum efficiency and transferring power for electric vehicle wireless charging system via LCCL circuit[J].Transactions of China Electrotechnical Society,2015,30(Supplement 1):199-203.
[20]LI Hongchang,WANG Kangping,HUANG Lang,et al.Dynamic modeling based on coupled modes for wireless power transfer systems[J].IEEE Transactions on Power Electronics,2015,30(11):6245-6253.
[21]GUO Yanjie,WANG Lifang,ZHANG Yuwang,et al.Rectifier load analysis for electric vehicle wireless charging system[J].IEEE Transactions on Industrial Electronics,2018,65(9):6970-6982.
[2]黄学良,谭林林,陈中,等.无线电能传输技术研究与应用综述[J].电工技术学报,2013,28(10):1-11.HUANG Xueliang,TAN Linlin,CHEN Zhong,et al.Review and research progress on wireless power transfer technology[J].Transactions of China Electrotechnical Society,2013,28(10):1-11.
[3]孙跃,陈宇,唐春森,等.感应电能传输系统输出电压调压电路研究[J].电工技术学报,2015,30(增刊1):226-230.SUN Yue,CHEN Yu,TANG Chunsen,et al.A voltage regulating circuit for secondary of inductive power transfer systems[J].Transactions of China Electrotechnical Society,2015,30(Supplement 1):226-230.
[4]郭彦杰,王丽芳,李树凡,等.电动汽车移动式无线充电系统动态建模与特性分析[J].电力系统自动化,2017,41(2):73-78.DOI:10.7500/AEPS20160927007.GUO Yanjie,WANG Lifang,LI Shufan,et al.Dynamic modeling and characteristic analysis on dynamic wireless charging system of electric vehicle[J].Automation of Electric Power Systems,2017,41(2):73-78.DOI:10.7500/AEPS20160927007.
[5]陈凯楠,赵争鸣,刘方,等.电动汽车双向无线充电系统谐振拓扑分析[J].电力系统自动化,2017,41(2):66-72.DOI:10.7500/AEPS20160930011.CHEN Kainan,ZHAO Zhengming,LIU Fang,et al.Analysis of resonant topology for bi-directional wireless charging of electric vehicle[J].Automation of Electric Power Systems,2017,41(2):66-72.DOI:10.7500/AEPS20160930011.
[6]MOHAMED A A S,MARIM A A,MOHAMMED O A.Magnetic design considerations of bidirectional inductive wireless power transfer system for EV applications[J].IEEETransactions on Magnetics,2017,53(6):1-5.
[7]LEE B K,KIM J P,KIM S G,et al.An isolated bidirectional PWM resonant converter for V2G(H)EV on-board charger[J].IEEE Transactions on Vehicular Technology,2017,66(9):7741-7750.
[8]NGUYEN B X,VILATHGAMUWA D M,FOO G H B,et al.An efficiency optimization scheme for bidirectional inductive power transfer systems[J].IEEE Transactions on Power Electronics,2015,30(11):6310-6319.
[9]MADAWALA U K,THRIMAWITHANA D.A bidirectional inductive power interface for electric vehicles in V2Gsystems[J].IEEE Transactions on Industrial Electronics,2011,58(10):4789-4796.
[10]THRIMAWITHANA D J,MADAWALA U K.A generalized steady state model for bidirectional IPT systems[J].IEEETransactions on Power Electronics,2013,28(10):4681-4689.
[11]SWAIN A K,NEATH M J,MADAWALA U K.A dynamic multivariable state-space model for bidirectional inductive power transfer systems[J].IEEE Transactions on Power Electronics,2012,27(11):4772-4780.
[12]MOHAMED A A S,YOUSSEF T,MOHAMMED O.Vehicle side predictive power-flow control of bidirectional WPT system for EV ancillary services[C]//IEEE Applied Power Electronics Conference and Exposition(APEC),March 26-30,2017,Tampa,USA:3211-3217.
[13]MOHAMED A A S,BERZOY A,MOHAMMED O A.Experimental validation of comprehensive steady-State analytical model of bidirectional WPT system in EVs applications[J].IEEE Transactions on Vehicle Technology,2017,66(7):5584-5594.
[14]ZHANG Yiming,HE Fanbo,LIU Fang,et al.Comparison of two bidirectional wireless power transfer control methods[C]//Asia-Pacific International Symposium on Electromagnetic Compatibility,May 17-21,2016,Shenzhen,China:68-70.
[15]DANIEL T,JOUNG-HU P.Wide-air-gap transformer model for the design oriented analysis of contactless power converters[J].IEEE Transactions on Industrial Electronics,2015,62(10):6345-6359.
[16]FU Minfan,TANG Zefan,LIU Ming,et al.Full-bridge rectifier input reactance compensation in megahertz wireless power transfer systems[C]//IEEE PELS Workshop on Emerging Technologies:Wireless Power(2015 WoW),June5-6,2015,Daejeon,South Korea:5p.
[17]BERGER A,AGOSTINELLI M,VESTI S,et al.A wireless charging system applying phase-shift and amplitude control to maximize efficiency and extractable power[J].IEEETransactions on Power Electronics,2015,30(11):6338-6348.
[18]COLAK K,ASA E,BOJARSKI M,et al.A novel phase-shift control of semi-bridgeless active rectifier for wireless power transfer[J].IEEE Transactions on Power Electronics,2015,30(11):6288-6297.
[19]李均锋,廖承林,王丽芳,等.基于LCCL的电动汽车无线充电系统最大效率与传输功率解耦设计研究[J].电工技术学报,2015,30(增刊1):199-203.LI Junfeng,LIAO Chenglin,WANG Lifang,et al.Decoupling method of maximum efficiency and transferring power for electric vehicle wireless charging system via LCCL circuit[J].Transactions of China Electrotechnical Society,2015,30(Supplement 1):199-203.
[20]LI Hongchang,WANG Kangping,HUANG Lang,et al.Dynamic modeling based on coupled modes for wireless power transfer systems[J].IEEE Transactions on Power Electronics,2015,30(11):6245-6253.
[21]GUO Yanjie,WANG Lifang,ZHANG Yuwang,et al.Rectifier load analysis for electric vehicle wireless charging system[J].IEEE Transactions on Industrial Electronics,2018,65(9):6970-6982.