CN112532101A - 一种新型双向高变比vienna整流器 - Google Patents

一种新型双向高变比vienna整流器 Download PDF

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CN112532101A
CN112532101A CN202011493154.0A CN202011493154A CN112532101A CN 112532101 A CN112532101 A CN 112532101A CN 202011493154 A CN202011493154 A CN 202011493154A CN 112532101 A CN112532101 A CN 112532101A
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bidirectional
filter
capacitor
inductor
switching tube
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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
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    • 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
    • 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
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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    • 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
    • Y02T10/60—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
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • 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
    • Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
    • 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
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Abstract

本发明公开了一种双向高变比VIENNA整流器，该VIENNA整流器首先对基础的VIENNA整流器进行双向延伸，将部分不可控开关替换为可控开关使电流可以从直流侧传输到交流侧。此外将CLLLC谐振式双向DC/DC变换器连接在该双向VIENNA整流器的直流输出端。CLLLC谐振式双向DC/DC变换器的电路结构对称，正反向的工作性能一致。本发明作为功率因数校正器，可以使功率因数为1，且电压应力减半，属于Boost型拓扑，电感电流连续，同时实现了能量的双向传输，提高了电路的转换效率和输出电压级数，且输出电压稳定，谐波少，具有较高的电压调整率和负载调整率，应用前景非常广泛。

Description

一种新型双向高变比VIENNA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VIENNA整流器。
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。VIENNA整流器具有降低电流畸变，使功率因数为1；电压应力减半，功率器件选型更为容易；属于Boost型拓扑，电感电流连续；提高功率密度，降低纹波，减小体积；具有电阻特性，在恶劣输入环境下仍可正常工作等优势。
发明内容
为了实现AC-DC、DC-AC的双向变换，提高VIENNA整流器输出电压等级和效率，本发明提出了一种新型双向高变比VIENNA整流器,与传统的VIENNA整流器相比，实现了双向高变比传输，提高了电路的转换效率，输出电压稳定，谐波少，具有很高的电压调整率和负载调整率，应用前景非常广泛。
本发明采取的技术方案为：
一种新型双向高变比VIENNA整流器，它包括主电路和控制电路，所述主电路包含双向VIENNA整流器和CLLLC谐振式双向DC/DC变换器两部分;所述双向VIENNA整流器是由滤波电路、三相可控整流桥、三个双向开关以及输出电路构成; CLLLC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，电源端与双向VIENNA整流器的直流输出端相连。
所述滤波电路包括滤波电感La、滤波电感Lb、滤波电感Lc、滤波电容Ca、滤波电容Cb和滤波电容Cc；滤波电感La一端连接在a相交流电上，滤波电感La的另一端连接在滤波电容Ca的一端；滤波电感Lb一端连接在b相交流电上，滤波电感Lb的另一端连接在滤波电容Cb的一端；滤波电感Lc一端连接在c相交流电上，滤波电感Lc的另一端连接在滤波电容Cc的一端；滤波电容Ca、滤波电容Cb、滤波电容Cc另一端连接在一起。
所述三相全控整流桥包括开关管S1、开关管S2、开关管S3、开关管S4、开关管S5、开关管S6；所述整流部分的开关管S1发射极连接开关管S2集电极，开关管S1发射极和开关管S2集电极连接的公共节点与滤波电感La的一端相连；开关管S3发射极连接开关管S4集电极，开关管S3发射极和开关管S4集电极连接的公共节点与滤波电感Lb的一端相连；开关管S5发射极连接开关管S6集电极，开关管S5发射极和开关管S6集电极连接的公共节点与滤波电感Lc的一端相连；所述整流部分的开关管S1、开关管S3、开关管S5集电极公共端连接在一起，其集电极公共端连接在电容Cf1一端；所述整流部分的开关管S2、开关管S4、开关管S6发射极公共端连接在一起，其发射极公共端连接在电容Cf2一端。
所述三个双向开关以及输出电路主要为三个双向开关Sy1、Sy2、Sy3，以及两个电容Cf1、Cf2；该双向开关由两个IGBE管反向串联构成;双向开关Sy1一端和滤波电感La相连，双向开关Sy2一端和滤波电感Lb相连，双向开关Sy3一端和滤波电感Lc相连；双向开关Sy1、Sy2、Sy3的另一端连接在一起组成公共端，两个电容Cf1、Cf2连接在一起形成公共点；双向开关Sy1、Sy2、Sy3组成公共端与两个电容Cf1、Cf2形成的公共点连接在一起。
所述双向VIENNA整流器的输出端即为CLLLC谐振式双向DC/DC变换器的输入端，通过两个电容Cf1、Cf2稳定电压。
所述CLLLC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和一个带励磁电感Lm的变压器；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Cr1一起串接在两个电容Cf1、Cf2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。
在正向工作时，当双向开关管导通时，三相可控整流电路输入端口与直流侧电容中点相连；当双向开关管断开时，三相可控整流电路输入端口连接状态与输入电流方向有关，若输入电流大于 0，输入端口与直流侧输出上电容正极相连，若电流小于 0，输入端口与直流输出下电容负极相连；双向VIENNA整流电路中三相电流状态共有 6种，通过控制三个双向开关管Sy1、Sy2、Sy3的导通与关断，可以达到调节输入电流的波形与输出电压的大小的目的；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,并控制开关管S1~S6实现DC/AC的逆变以及功率因数的矫正。
附图说明
图1为本发明一种新型双向高变比VIENNA整流器的电路拓扑结构图；
图2为本发明一种新型双向高变比VIENNA整流器在一次侧Mos开关管（Q1和Q2）导通时的工作原理图；
图3为本发明一种新型双向高变比VIENNA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4为本发明一种新型双向高变比VIENNA整流器在一次侧Mos开关管（Q1和Q2）关断时的工作原理图；
图5为本发明一种新型双向高变比VIENNA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所示为一种新型双向高变比VIENNA整流器，主电路包含包括主电路和控制电路，所述主电路包含双向VIENNA整流器和CLLLC谐振式双向DC/DC变换器两部分;所述双向VIENNA整流器是由滤波电路、三相可控整流桥、三个双向开关以及输出电路构成; CLLLC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，电源端与双向VIENNA整流器的直流输出端相连。
所述滤波电路包括滤波电感La、滤波电感Lb、滤波电感Lc、滤波电容Ca、滤波电容Cb和滤波电容Cc；滤波电感La一端连接在a相交流电上，滤波电感La的另一端连接在滤波电容Ca的一端；滤波电感Lb一端连接在b相交流电上，滤波电感Lb的另一端连接在滤波电容Cb的一端；滤波电感Lc一端连接在c相交流电上，滤波电感Lc的另一端连接在滤波电容Cc的一端；滤波电容Ca、滤波电容Cb、滤波电容Cc另一端连接在一起。
所述三相全控整流桥包括开关管S1、开关管S2、开关管S3、开关管S4、开关管S5、开关管S6；所述整流部分的开关管S1发射极连接开关管S2集电极，开关管S1发射极和开关管S2集电极连接的公共节点与滤波电感La的一端相连；开关管S3发射极连接开关管S4集电极，开关管S3发射极和开关管S4集电极连接的公共节点与滤波电感Lb的一端相连；开关管S5发射极连接开关管S6集电极，开关管S5发射极和开关管S6集电极连接的公共节点与滤波电感Lc的一端相连；所述整流部分的开关管S1、开关管S3、开关管S5集电极公共端连接在一起，其集电极公共端连接在电容Cf1一端；所述整流部分的开关管S2、开关管S4、开关管S6发射极公共端连接在一起，其发射极公共端连接在电容Cf2一端。
所述三个双向开关以及输出电路主要为三个双向开关Sy1、Sy2、Sy3，以及两个电容Cf1、Cf2；该双向开关由两个IGBE管反向串联构成;双向开关Sy1一端和滤波电感La相连，双向开关Sy2一端和滤波电感Lb相连，双向开关Sy3一端和滤波电感Lc相连；双向开关Sy1、Sy2、Sy3的另一端连接在一起组成公共端，两个电容Cf1、Cf2连接在一起形成公共点；双向开关Sy1、Sy2、Sy3组成公共端与两个电容Cf1、Cf2形成的公共点连接在一起。
所述双向VIENNA整流器的输出端即为CLLLC谐振式双向DC/DC变换器的输入端，通过两个电容Cf1、Cf2稳定电压。
所述CLLLC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和一个带励磁电感Lm的变压器；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Cr1一起串接在两个电容Cf1、Cf2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。
在正向工作时，当双向开关管导通时，三相可控整流电路输入端口与直流侧电容中点相连；当双向开关管断开时，三相可控整流电路输入端口连接状态与输入电流方向有关，若输入电流大于 0，输入端口与直流侧输出上电容正极相连，若电流小于 0，输入端口与直流输出下电容负极相连；双向VIENNA整流电路中三相电流状态共有 6种，通过控制三个双向开关管Sy1、Sy2、Sy3的导通与关断，可以达到调节输入电流的波形与输出电压的大小的目的；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,并控制开关管S1~S6实现DC/AC的逆变以及功率因数的矫正。
工作过程首先双向VIENNA整流器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VIENNA整流器建立起稳定的直流母线电压之后，第二级CLLLC谐振式双向DC-DC变换器准备开始启动，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)

1.一种新型双向高变比VIENNA整流器，其特征是：它包括主电路和控制电路，所述主电路包含双向VIENNA整流器和CLLLC谐振式双向DC/DC变换器两部分;所述双向VIENNA整流器是由滤波电路、三相可控整流桥、三个双向开关以及输出电路构成; CLLLC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，电源端与双向VIENNA整流器的直流输出端相连。
2.如权利要求1所述的一种新型双向高变比VIENNA整流器，其特征是：所述滤波电路包括滤波电感La、滤波电感Lb、滤波电感Lc、滤波电容Ca、滤波电容Cb和滤波电容Cc；滤波电感La一端连接在a相交流电上，滤波电感La的另一端连接在滤波电容Ca的一端；滤波电感Lb一端连接在b相交流电上，滤波电感Lb的另一端连接在滤波电容Cb的一端；滤波电感Lc一端连接在c相交流电上，滤波电感Lc的另一端连接在滤波电容Cc的一端；滤波电容Ca、滤波电容Cb、滤波电容Cc另一端连接在一起。
3.如权利要求1所述的一种新型双向高变比VIENNA整流器，其特征是：所述三相全控整流桥包括开关管S1、开关管S2、开关管S3、开关管S4、开关管S5、开关管S6；所述整流部分的开关管S1发射极连接开关管S2集电极，开关管S1发射极和开关管S2集电极连接的公共节点与滤波电感La的一端相连；开关管S3发射极连接开关管S4集电极，开关管S3发射极和开关管S4集电极连接的公共节点与滤波电感Lb的一端相连；开关管S5发射极连接开关管S6集电极，开关管S5发射极和开关管S6集电极连接的公共节点与滤波电感Lc的一端相连；所述整流部分的开关管S1、开关管S3、开关管S5集电极公共端连接在一起，其集电极公共端连接在电容Cf1一端；所述整流部分的开关管S2、开关管S4、开关管S6发射极公共端连接在一起，其发射极公共端连接在电容Cf2一端。
4.如权利要求1所述的一种新型双向高变比VIENNA整流器，其特征是：所述三个双向开关以及输出电路主要为三个双向开关Sy1、Sy2、Sy3，以及两个电容Cf1、Cf2；该双向开关由两个IGBE管反向串联构成;双向开关Sy1一端和滤波电感La相连，双向开关Sy2一端和滤波电感Lb相连，双向开关Sy3一端和滤波电感Lc相连；双向开关Sy1、Sy2、Sy3的另一端连接在一起组成公共端，两个电容Cf1、Cf2连接在一起形成公共点；双向开关Sy1、Sy2、Sy3组成公共端与两个电容Cf1、Cf2形成的公共点连接在一起。
5.如权利要求1所述的一种新型双向高变比VIENNA整流器，其特征是：所述双向VIENNA整流器的输出端即为CLLLC谐振式双向DC/DC变换器的输入端，通过两个电容Cf1、Cf2稳定电压。
6.如权利要求1所述的一种新型双向高变比VIENNA整流器，其特征是：所述CLLLC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和一个带励磁电感Lm的变压器；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Cr1一起串接在两个电容Cf1、Cf2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。
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