CN112532100A - 一种基于lclc谐振的双向混合整流器 - Google Patents

一种基于lclc谐振的双向混合整流器 Download PDF

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CN112532100A
CN112532100A CN202011493027.0A CN202011493027A CN112532100A CN 112532100 A CN112532100 A CN 112532100A CN 202011493027 A CN202011493027 A CN 202011493027A CN 112532100 A CN112532100 A CN 112532100A
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switch
tube
inductor
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颜景斌
马晶晶
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Harbin University of Science and Technology
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
    • H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
    • H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/79—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/797—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
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    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • B60L53/22—Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L55/00—Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
    • H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
    • H02M3/33584—Bidirectional converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
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    • Y02T10/72—Electric energy management in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
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Abstract

本发明公开了一种基于LCLC谐振的双向混合整流器，该双向混合整流器第一级采用图腾柱式交错无桥功率因数校正（PFC），可以处理大功率，获得高质量的电网电流。Qe、Qf与Qg、Qh并联使用，降低了传导损耗，提高了充电器效率。LCLC谐振式双向DC/DC变换器电路结构对称，正反向的工作性能一致，具有高效率和高功率密度，且没有利用变压器励磁电感参与谐振，在大的电感比情况下，仍可以实现较大的增益，作为该新型双向混合整流器的第二级。其中第一级AC/DC电路作为电网侧和第二级的接口电路，负责控制交流侧电流和直流母线电压，从而获得较好的网侧电流质量和为第二级电路提供稳定的直流；第二级双向DC/DC电路负责控制输出侧电压和电流，可以根据调度信号进行合理有序的充放电。

Description

一种基于LCLC谐振的双向混合整流器
技术领域
本发明涉及三相电能变换领域，具体涉及一种新型AC/DC变换器。
技术背景
随着化石能源逐渐枯竭、传统燃油车对环境的污染受到越来越多人的重视。电动汽车使用的电能可以通过可再生能源获得，于是受到全世界的广泛关注和推广。电动汽车车载充电机将电网交流电转化为直流电给电动汽车充电，其性能对于电动汽车和电网有着非常重要的影响。电动汽车的电能均是由电动汽车充电机将交流电能通过电力电子变换器转化成的直流电。因此研究高效率、高性能、对电网污染小的电力电子变换器不仅可以实现电能的高效使用，对于延长电动汽车和电池的使用寿命具有重要意义。综上所述，电动汽车双向充电机正向工作实现AC－DC，电网接入，为电动汽车动力电池充电；反向工作实现DC－AC，电能从电池组反向逆变，产生家用交流电。这可以很好地将充电与放电功能集成在一个电力电子变换器中，实现电力电子变换器的高效利用与高功率密度集成，降低产品成本与体积。在变换的过程中会产生谐波电流，为了从根源上消除谐波电流，采用功率因数校正技术，改善电力电子装置的谐波水平和功率因数。
发明内容
为了实现AC-DC、DC-AC的双向变换，获得高质量的电网电流，本发明提出了一种基于LCLC谐振的双向混合整流器。与传统的AC/DC变换器相比，实现了双向传输，降低传导损耗，提高充电器效率，可以根据调度信号进行合理有序的充放电，在大的电感比情况下，仍可以实现较大的增益，应用前景非常广泛。
本发明采取的技术方案为：
一种基于LCLC谐振的双向混合整流器，它包括主电路和控制电路，所述主电路包含两级，第一级采用图腾柱式交错无桥PFC，开关管Qe、Qf与开关管Qg、Qh并联使用；LCLC谐振式双向DC/DC变换器作为该新型双向混合整流器的第二级；所述图腾柱式交错无桥PFC是在传统图腾柱式无桥PFC的基础上，将两个续流二极管换做两个功率开关器件，从而可以实现能量的双向流动，并且通过并联的方式将图腾柱式无桥PFC并联使用，进一步降低损耗，提高充电器效率；LCLC谐振式双向DC-DC变换器包含第一端口、第二端口、谐振电路、开关回路和一个变压器，所述第一端口为电源端，另外一个则对应地作为负载端，电源端与图腾柱式交错无桥PFC的直流输出端相连。
所述图腾柱式交错无桥PFC包括交流电源Vac、交流输入侧电感Lac1、交流输入侧电感Lac2、输出电容C以及８个功率开关器件Qa、Qb、Qc、Qd、Qe、Qf、Qg、Qh；交流输入侧电感Lac1和交流输入侧电感Lac2一端连接在交流电源Vac上，开关管Qa源极连接开关管Qb漏极，开关管Qa源极和开关管Qb漏极连接的公共节点与交流输入侧电感Lac1的另一端相连；开关管Qc源极连接开关管Qd漏极，开关管Qc源极和开关管Qd漏极连接的公共节点与交流输入侧电感Lac2的另一端相连；开关管Qe源极连接开关管Qf漏极，开关管Qe源极和开关管Qf漏极连接的公共节点与交流电源Vac的另一端相连；开关管Qa、开关管Qc、开关管Qe漏极公共端连接在一起，其漏极公共端连接在输出电容C一端；开关管Qb、开关管Qd、开关管Qf源极公共端连接在一起，其源极公共端连接在输出电容C的另一端；开关管Qg并联在开关管Qe两端，源极与源极相连，漏极与漏极相连；开关管Qh并联在开关管Qf两端，源极与源极相连，漏极与漏极相连。
所述图腾柱式交错无桥PFC的输出端即为LCLC谐振式双向DC/DC变换器的输入端，通过电容C稳定电压；电容C一端连接在开关管Qg的漏极，一端连接在开关管Qh的源极。
所述LCLC谐振式双向DC-DC变换器包括四个一次侧Mos开关Q1、Q2、Q3、Q4，四个二次侧Mos开关Q5、Q6、Q7、Q8，一次侧谐振电感Lr1，二次侧谐振电感Lr2，一次侧谐振电容Cr1，二次侧谐振电容Cr2，并联支路电感Lp，并联支路电容Cp和一个变压器；其中四个一次侧开关Q1、Q2、Q3、Q4组成全桥电路后和一次侧谐振电感Lr1、一次侧谐振电容Cr1一起串接在电容Cpn和变压一次侧之间，四个二次侧开关Q5、Q6、Q7、Q8组成全桥电路并和二次侧谐振电感Lr2、二次侧谐振电容Cr2一起串接在负载R和变压器二次侧之间；其中并联支路电感Lp和并联支路电容Cp代替变压器励磁电感参与谐振，并联在变压器一次侧。
在正向工作电网电压为正时，开关管Qe、Qg终关闭，开关管Qf、Qh始终导通；开关管Qa、Qb高频动作，从而和交流输入侧电感Lac1组成一个Boost电路，其中开关管Qb为主开关管，开关挂怒Qa续流管，即当开关管Qb开通而开关管Qa关闭时，电感充电储存能量；当开关管Qa开通而开关管Qb关闭时，电感放电向直流侧释放能量；开关管Qc、Qd高频动作，从而和交流输入侧电感Lac2组成一个Boost电路，其中开关管Qd为主开关管，开关挂怒Qc续流管，即当开关管Qd开通而开关管Qc关闭时，电感充电储存能量；当开关管Qc开通而开关管Qd关闭时，电感放电向直流侧释放能量，从而完成Boost升压功能。当电网电压为负时，工作情况同正半周类似，这里不再赘述；从而实现三相PFC功能。控制Mos开关Q1、Q4与Q2、Q3加互补的驱动信号，实现逆变功能，二次侧开关Q5、Q6、Q7、Q8不加驱动信号，采用开关管反并联的二极管进行整流，实现DC/DC变换。
在反向工作时控制Mos开关Q5、Q8与Q6、Q7加互补的驱动信号，实现逆变功能，一次侧开关Q1、Q2、Q3、Q4不加驱动信号，采用开关管反并联的二极管进行整流，实现DC/DC变换；当所述图腾柱式交错无桥PFC工作于并网逆变模式时，电路工作情况刚好与正向工作模式对称，开关管在电网正负半周分别组成Buck电路，将直流侧的能量传递到电网侧，控制开关管Qa~Qh实现DC/AC的逆变以及功率因数的矫正。
附图说明
图1为本发明一种基于LCLC谐振的双向混合整流器的电路拓扑结构图；
图2为本发明一种基于LCLC谐振的双向混合整流器开关管Qa、Qb、Qe、Qf驱动信号；
图3为本发明一种基于LCLC谐振的双向混合整流器在一次侧Mos开关管（Q1和Q2）导通时的工作原理图；
图4为本发明一种基于LCLC谐振的双向混合整流器在一次侧谐振电感Lr1的电流与励磁电感Lm的电流相等时的工作原理图；
图5为本发明一种基于LCLC谐振的双向混合整流器在一次侧Mos开关管（Q1和Q2）关断时的工作原理图；
图6为本发明一种基于LCLC谐振的双向混合整流器在一次侧Mos开关管（Q3和Q4）导通时的工作原理图。
具体实施方式
图1所示为一种基于LCLC谐振的双向混合整流器，主电路包含两级，第一级采用图腾柱式交错无桥PFC，开关管Qe、Qf与开关管Qg、Qh并联使用；LCLC谐振式双向DC/DC变换器作为该新型双向混合整流器的第二级；所述图腾柱式交错无桥PFC是在传统图腾柱式无桥PFC的基础上，将两个续流二极管换做两个功率开关器件，从而可以实现能量的双向流动，并且通过并联的方式将图腾柱式无桥PFC并联使用，进一步降低损耗，提高充电器效率；LCLC谐振式双向DC-DC变换器包含第一端口、第二端口、谐振电路、开关回路和一个变压器，所述第一端口为电源端，另外一个则对应地作为负载端，电源端与图腾柱式交错无桥PFC的直流输出端相连。
图腾柱式交错无桥PFC包括交流电源Vac、交流输入侧电感Lac1、交流输入侧电感Lac2、输出电容C以及８个功率开关器件Qa、Qb、Qc、Qd、Qe、Qf、Qg、Qh；交流输入侧电感Lac1和交流输入侧电感Lac2一端连接在交流电源Vac上，开关管Qa源极连接开关管Qb漏极，开关管Qa源极和开关管Qb漏极连接的公共节点与交流输入侧电感Lac1的另一端相连；开关管Qc源极连接开关管Qd漏极，开关管Qc源极和开关管Qd漏极连接的公共节点与交流输入侧电感Lac2的另一端相连；开关管Qe源极连接开关管Qf漏极，开关管Qe源极和开关管Qf漏极连接的公共节点与交流电源Vac的另一端相连；开关管Qa、开关管Qc、开关管Qe漏极公共端连接在一起，其漏极公共端连接在输出电容C一端；开关管Qb、开关管Qd、开关管Qf源极公共端连接在一起，其源极公共端连接在输出电容C的另一端；开关管Qg并联在开关管Qe两端，源极与源极相连，漏极与漏极相连；开关管Qh并联在开关管Qf两端，源极与源极相连，漏极与漏极相连。
图腾柱式交错无桥PFC的输出端即为LCLC谐振式双向DC/DC变换器的输入端，通过电容C稳定电压；电容C一端连接在开关管Qg的漏极，一端连接在开关管Qh的源极。
LCLC谐振式双向DC-DC变换器包括四个一次侧Mos开关Q1、Q2、Q3、Q4，四个二次侧Mos开关Q5、Q6、Q7、Q8，一次侧谐振电感Lr1，二次侧谐振电感Lr2，一次侧谐振电容Cr1，二次侧谐振电容Cr2，并联支路电感Lp，并联支路电容Cp和一个变压器；其中四个一次侧开关Q1、Q2、Q3、Q4组成全桥电路后和一次侧谐振电感Lr1、一次侧谐振电容Cr1一起串接在电容Cpn和变压一次侧之间，四个二次侧开关Q5、Q6、Q7、Q8组成全桥电路并和二次侧谐振电感Lr2、二次侧谐振电容Cr2一起串接在负载R和变压器二次侧之间；其中并联支路电感Lp和并联支路电容Cp代替变压器励磁电感参与谐振，并联在变压器一次侧。
在正向工作电网电压为正时，开关管Qe、Qg终关闭，开关管Qf、Qh始终导通；开关管Qa、Qb高频动作，从而和交流输入侧电感Lac1组成一个Boost电路，其中开关管Qb为主开关管，开关挂怒Qa续流管，即当开关管Qb开通而开关管Qa关闭时，电感充电储存能量；当开关管Qa开通而开关管Qb关闭时，电感放电向直流侧释放能量；开关管Qc、Qd高频动作，从而和交流输入侧电感Lac2组成一个Boost电路，其中开关管Qd为主开关管，开关挂怒Qc续流管，即当开关管Qd开通而开关管Qc关闭时，电感充电储存能量；当开关管Qc开通而开关管Qd关闭时，电感放电向直流侧释放能量，从而完成Boost升压功能。当电网电压为负时，工作情况同正半周类似，这里不再赘述，从而实现三相PFC功能；控制Mos开关Q1、Q4与Q2、Q3加互补的驱动信号，实现逆变功能，二次侧开关Q5、Q6、Q7、Q8不加驱动信号，采用开关管反并联的二极管进行整流，实现DC/DC变换。
在反向工作时控制Mos开关Q5、Q8与Q6、Q7加互补的驱动信号，实现逆变功能，一次侧开关Q1、Q2、Q3、Q4不加驱动信号，采用开关管反并联的二极管进行整流，实现DC/DC变换；当所述图腾柱式交错无桥PFC工作于并网逆变模式时，电路工作情况刚好与正向工作模式对称，开关管在电网正负半周分别组成Buck电路，将直流侧的能量传递到电网侧，控制开关管Qa~Qh实现DC/AC的逆变以及功率因数的矫正。
工作过程首先第一级双向AC/DC电路按照正常的正向充电工作模式启动，完成软启动之后进行双闭环工作，此时基本无功率传输；在第一级双向AC/DC电路建立起稳定的直流母线电压之后，第二级双向DC/DC准备开始启动，按照合适软启动策略即逐渐降低工作频率至预设的稳态工作点，然后开始正常工作，至此整机完成了整体的启动，变换器的两级电路开始稳定运行实现功率传输，当需要反向工作放电时，后级双向DC/DC输出侧的能量通过直流母线借由第一级电路传递到电网。

Claims (6)

1.一种基于LCLC谐振的双向混合整流器，其特征在于，包括主电路和控制电路，所述主电路包含两级，第一级采用图腾柱式交错无桥PFC，开关管Qe、Qf与开关管Qg、Qh并联使用；LCLC谐振式双向DC/DC变换器作为该新型双向混合整流器的第二级；所述图腾柱式交错无桥PFC是在传统图腾柱式无桥PFC的基础上，将两个续流二极管换做两个功率开关器件，从而可以实现能量的双向流动，并且通过并联的方式将图腾柱式无桥PFC并联使用，进一步降低损耗，提高充电器效率；LCLC谐振式双向DC-DC变换器包含第一端口、第二端口、谐振电路、开关回路和一个变压器，所述第一端口为电源端，另外一个则对应地作为负载端，电源端与图腾柱式交错无桥PFC的直流输出端相连。
2.如权利要求1所述的一种基于LCLC谐振的双向混合整流器，其特征是：所述图腾柱式交错无桥PFC包括交流电源Vac、交流输入侧电感Lac1、交流输入侧电感Lac2、输出电容C以及８个功率开关器件Qa、Qb、Qc、Qd、Qe、Qf、Qg、Qh；交流输入侧电感Lac1和交流输入侧电感Lac2一端连接在交流电源Vac上，开关管Qa源极连接开关管Qb漏极，开关管Qa源极和开关管Qb漏极连接的公共节点与交流输入侧电感Lac1的另一端相连；开关管Qc源极连接开关管Qd漏极，开关管Qc源极和开关管Qd漏极连接的公共节点与交流输入侧电感Lac2的另一端相连；开关管Qe源极连接开关管Qf漏极，开关管Qe源极和开关管Qf漏极连接的公共节点与交流电源Vac的另一端相连；开关管Qa、开关管Qc、开关管Qe漏极公共端连接在一起，其漏极公共端连接在输出电容C一端；开关管Qb、开关管Qd、开关管Qf源极公共端连接在一起，其源极公共端连接在输出电容C的另一端；开关管Qg并联在开关管Qe两端，源极与源极相连，漏极与漏极相连；开关管Qh并联在开关管Qf两端，源极与源极相连，漏极与漏极相连。
3.如权利要求1所述的一种基于LCLC谐振的双向混合整流器，其特征是：所述图腾柱式交错无桥PFC的输出端即为LCLC谐振式双向DC/DC变换器的输入端，通过电容C稳定电压；电容C一端连接在开关管Qg的漏极，一端连接在开关管Qh的源极。
4.如权利要求1所述的一种基于LCLC谐振的双向混合整流器，其特征是：所述LCLC谐振式双向DC-DC变换器包括四个一次侧Mos开关Q1、Q2、Q3、Q4，四个二次侧Mos开关Q5、Q6、Q7、Q8，一次侧谐振电感Lr1，二次侧谐振电感Lr2，一次侧谐振电容Cr1，二次侧谐振电容Cr2，并联支路电感Lp，并联支路电容Cp和一个变压器；其中四个一次侧开关Q1、Q2、Q3、Q4组成全桥电路后和一次侧谐振电感Lr1、一次侧谐振电容Cr1一起串接在电容Cpn和变压一次侧之间，四个二次侧开关Q5、Q6、Q7、Q8组成全桥电路并和二次侧谐振电感Lr2、二次侧谐振电容Cr2一起串接在负载R和变压器二次侧之间；其中并联支路电感Lp和并联支路电容Cp代替变压器励磁电感参与谐振，并联在变压器一次侧。
5.如权利要求1所述的一种基于LCLC谐振的双向混合整流器，其特征是：在正向工作电网电压为正时，开关管Qe、Qg终关闭，开关管Qf、Qh始终导通；开关管Qa、Qb高频动作，从而和交流输入侧电感Lac1组成一个Boost电路，其中开关管Qb为主开关管，开关挂怒Qa续流管，即当开关管Qb开通而开关管Qa关闭时，电感充电储存能量；当开关管Qa开通而开关管Qb关闭时，电感放电向直流侧释放能量；开关管Qc、Qd高频动作，从而和交流输入侧电感Lac2组成一个Boost电路，其中开关管Qd为主开关管，开关挂怒Qc续流管，即当开关管Qd开通而开关管Qc关闭时，电感充电储存能量；当开关管Qc开通而开关管Qd关闭时，电感放电向直流侧释放能量，从而完成Boost升压功能；当电网电压为负时，工作情况同正半周类似，这里不再赘述，从而实现三相PFC功能；控制Mos开关Q1、Q4与Q2、Q3加互补的驱动信号，实现逆变功能，二次侧开关Q5、Q6、Q7、Q8不加驱动信号，采用开关管反并联的二极管进行整流，实现DC/DC变换。
6.如权利要求1所述的一种基于LCLC谐振的双向混合整流器，其特征是：在反向工作时控制Mos开关Q5、Q8与Q6、Q7加互补的驱动信号，实现逆变功能，一次侧开关Q1、Q2、Q3、Q4不加驱动信号，采用开关管反并联的二极管进行整流，实现DC/DC变换；当所述图腾柱式交错无桥PFC工作于并网逆变模式时，电路工作情况刚好与正向工作模式对称，开关管在电网正负半周分别组成Buck电路，将直流侧的能量传递到电网侧，控制开关管Qa~Qh实现DC/AC的逆变以及功率因数的矫正。
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