CN105896691A - 电动车辆的充电*** - Google Patents
电动车辆的充电*** Download PDFInfo
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- CN105896691A CN105896691A CN201510652008.0A CN201510652008A CN105896691A CN 105896691 A CN105896691 A CN 105896691A CN 201510652008 A CN201510652008 A CN 201510652008A CN 105896691 A CN105896691 A CN 105896691A
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- 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
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/22—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed with sequential operation of interdependent switches, e.g. relays, contactors, programme drum
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- 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
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- 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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
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- 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
- 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
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- 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
- 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
- B60L53/24—Using the vehicle's propulsion converter for charging
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- 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
- 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
- B60L53/30—Constructional details of charging stations
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- 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
-
- 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
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- 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
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
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- 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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- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- 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
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- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- 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
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Abstract
本发明提供一种电动车辆的充电***,无需单独的车载充电器而基于先前安装在所述电动车辆内的电动机和逆变器实现电动车辆的充电***。所述充电***包括:DC电源,配置成存储或输出DC电力;以及电动机,配置成驱动所述电动车辆。逆变器,基于电流的流动驱动所述电动机;以及AC电源,输出所述AC电力。此外,充电继电器,配置成执行开关操作以将从所述逆变器输出的DC电力供应给所述DC电源;以及输入继电器,配置成执行开关操作以将AC电力供应给所述逆变器。
Description
技术领域
本公开涉及电动车辆的充电***,且更特别地涉及充电***通过***方式连接到外部电源以对电池充电的技术。
背景技术
***式混合动力电动车辆(下文中统称为“PHEV”;plug-inhybrid electric vehicle)或电动车辆(下文中统称为“EV”;electricvehicle)包括电池,电池使用安装在车辆内的车载充电器(下文中统称为“OBC”;on-board charger)用来自外部交流(下文中统称为“AC”;alternating current))电源的驱动车辆所需的电力进行充电。
OBC包括高压开关、电感、电容器、绝缘变压器、继电器、控制板、冷却***和容纳部件的单独封装,因此在尺寸、重量和价格上是不利的。此外,当车辆驾驶时不需要但当车辆充电时需要的OBC安装在车辆内,同时单独进行配置。因此,车辆的重量可增加,这会对车辆的驾驶燃油效率产生不利影响
进一步地,现有技术提出了一种结构,在这种结构中,逆变器使家用电源升压为目标电压,并且直流(下文中统称为“DC”;directcurrent)-直流(DC)转换器形成简单的电流传递而不需要执行开关控制以对电池充电。当高压电池电压小于家用电压时,该结构具有控制升压功率因子校正器(PFC;power factor corrector)的困难。
当在现有的电动机***配置中不存在高压电池DC-DC转换器(HDC:high voltage DC-DC converter)时,如果高压电池电压小于输入电压,则不进行控制。因此,需要可以作为降压转换器的单独的DC-DC装置。进一步地,现有的逆变器集成充电***结构包括双向DC-DC转换器,并且使用逆变器执行升压控制以使输入电压升压到电池电压或更大。进一步地,双向转换器执行降压控制以使输入电压降压到目标电池电压。
该结构可以应用于包括双向转换器的车辆。进一步地,当车辆内没有装配双向转换器时,基于外部输入电压和电池电压范围没有产生充电区域。换句话说,当电池电压范围很低或者交流整流电压大于电池电压,在电池的低电量区域中没有产生升压充电控制区域。
发明内容
本公开一方面提供了无需单独的车载充电器而基于先前安装在电动车辆内的电动机和逆变器实现的用于电动车辆的充电***。从本公开的以下详细描述,本公开的上述和其他目的、特征、方面和优势将被理解且变得更显而易见。另外,可以很容易地理解,本公开的对象和优势可以由权利要求中叙述的单元及其组合来实现。
根据本公开的示例性实施例,电动车辆的充电***可以包括:DC电源,配置成存储或输出DC电力;电动机,配置成驱动所述电动车辆;逆变器,配置成基于电流的流动驱动所述电动机;AC电源,配置成将电力供应给所述DC电源;充电继电器,配置成执行开关操作以将从所述逆变器输出的DC电力供应给所述DC电源;以及输入继电器,配置成执行开关操作以将AC电力供应给所述逆变器。
所述输入继电器可以包括设置在所述AC电源的两端的两个输入继电器。电动车辆的充电***可以还包括:两个主继电器,配置成当所述电动机被驱动时,将充入所述DC电源的所述DC电力供应给所述电动机;以及辅助电容器,并联连接到所述DC电源,并且设置在所述充电继电器和所述主继电器之间以存储充入所述DC电源中的电力。
电动车辆的充电***可以还包括:电感,设置在所述充电继电器和所述逆变器之间。所述充电继电器可以包括:第一充电继电器,设置在所述DC电源和所述逆变器之间;以及第二充电继电器,设置在所述电动机和所述输入继电器之间。所述第二充电继电器可以串联连接多个第二充电继电器。所述逆变器的三相开关中的两相被用作升压转换器,所述升压转换器配置成使用升压控制使电压升压(例如,增加)到电池电压或更大。所述逆变器的三相开关中的一相被用作降压转换器,所述降压转换器配置成使用降压控制使电容器的电压降压(例如,降低)到目标电池电压。
附图说明
从下面结合附图的详细描述,本公开的上述和其他目的、特征和优势将更显而易见。
图1是根据本公开的示例性实施例的电动车辆的充电***的示例性方框图;
图2是根据本公开的示例性实施例示出图1的充电***的示例性示意图;
图3是根据本公开的示例性实施例示出在充电操作时图1的充电***的示例性示意图;以及
图4是根据本公开的示例性实施例示出解决问题区域的条件的示例图。
附图标记说明
101:直流电源
103:主继电器1
105:主继电器2
107:充电继电器1
109:电感
111:辅助电容器
113:DC链路电容器
115:逆变器
117:电动机
119:充电继电器2
121:输入继电器
123:AC电源
具体实施方式
可以理解的是,在此使用的术语“车辆”或者“车的”或者其他类似的术语包括一般机动车辆,诸如客运汽车,包括运动型多功能车(SUV)、公共汽车、卡车、各种商用车辆,包括各种船艇和舰船的船只,飞机等,并且包括混合动力车辆、电动车辆、插电式混合动力电动车辆、氢动力车辆和其他替代燃料车辆(例如,燃料来自石油以外的资源)。在此提到的混合动力车辆是具有两个或者多个动力源的车辆,例如,汽油电动车辆。
虽然通过使用多个单元来执行示例性过程描述了示例性实施例,但是可以理解的是,也可以由一个或者多个模块执行所述示例性过程。另外,可以理解的是,术语控制器/控制单元指的是包括存储器和处理器的硬件设备。所述存储器配置成存储所述模块,以及所述处理器特别地配置成实行所述模块以执行下面进一步描述的一个或者多个过程。
本文使用的术语只是用于描述特定的实施例,并不用于限制本发明。如本文使用的单数形式“一种/个(a/an)”以及“所述”旨在也包括复数形式,除非上下文清楚地指出。应当进一步理解,当在本说明书中使用时,术语“包括”和/或“包含”指明所述特征、整数、步骤、操作、要素、和/或部件的存在,但不排除一个或多个其他特征、整数、步骤、操作、要素、部件和/或其集合的存在或添加。本文使用的术语“和/或”包括列出的一个或者多个相关项目中的任一个和全部的组合。
除非特别说明或者通过上下文特别明显,如本文使用的术语“约”可以被理解为在本领域正常公差的范围内,例如,在2个标准差范围内。“约”可以被理解为在规定的值10%、9%、8%、7%、6%、5%、4%、3%、2%、1%、0.5%、0.1%、0.05%或者0.01%内。除非从上下文另有明确的指出,否则由所述术语“约”来修改本文提供的所有数值。
下文中,将参考附图详细描述本公开的示例性实施例,使得本领域技术人员可以很容易实践本公开。然而,本公开可以以各种方式进行修改,并且不局限于本说明书中所提供的实施例。在附图中,为了清楚地描述本公开,将省略与本说明书无关的部分,并且类似的参考编号将用于描述贯穿本说明书的类似的部分。
下文中,根据本公开的示例性实施例,将参考附图详细描述电动车辆的充电***。本文中,电动车辆可以是***式混合动力电动车辆(下文中统称为“PHEV”)或电动车辆(下文中统称为“EV”)。根据本公开的示例性实施例,电动车辆的充电***可以是通过***方式(plug-in)连接到外部电源以对电池充电的充电***,所述外部电源是商用电源。
图1根据本公开的示例性实施例是电动车辆的充电***的示例性方框图,并且示出电动机***的集成充电***结构。参考图1,该充电***可以包括直流(下文中统称为“DC”)电源101、主继电器1103、主继电器2105、充电继电器1107、辅助电容器(例如,降压)111、DC链路(link)电容器113、逆变器115、电动机117、充电继电器2119、输入继电器121和交流(下文中统称为“AC”)电源123。
在该配置中,DC电源101、主继电器1103、主继电器2105、充电继电器1107、和辅助电容器(例如,降压)111构成电池。该电池可以配置成从逆变器115接收DC电力,并且将接收的DC电力存储在DC电源101中。进一步地,充入DC电源101的DC电力可以经过逆变器115被供应给电动机117。
逆变器115可以配置成基于电流的流动方向操作电动车辆的电动机117。此外,逆变器115可以配置成将DC电力转换为AC电力。电动机117可以连接到逆变器115以驱动电动车辆(未示出),并且电动机117可以使用由电池通过逆变器115供应的交流进行驱动。AC电源123可以是外部电源,并且可以配置成将电力供应给电池。
特别地,根据本公开的示例性实施例,充电继电器1107、充电继电器2119和输入继电器121是在充电***中额外配置的部件。进一步地,虽然未在图1中示出,但是辅助电容器(降压)111可以是可选地添加到充电***的部件。
在该配置中,辅助电容器111可以是配置成吸收在电感109(图2)中流动的纹波电流以形成DC电压的平滑电容器。此处,电池可以配置成作为大容量电容器工作,因此可以不需要辅助电容器,但是当控制上需要时,可以添加辅助电容器。
主继电器1103和主继电器2105可以配置成执行开关操作以将充入DC电源101的电力供应给电动机119。此外,主继电器1103和主继电器2105可以连接在DC电源101的两端以调整输入到DC电源101以及从DC电源101输出的电压和电流。充电继电器1107、充电继电器2119和输入继电器121可以配置成将来自AC电源123的AC电力供应给电池以执行用于充电的开关操作。在下面将描述图1的充电***的充电操作。
图2是例示图1的充电***的示例性示意图,图3是例示在充电操作期间图1的充电***的示例性示意图,并且图4是根据本公开的示例性实施例示出解决问题区域的条件的示例图。
参考图2和图3,在充电期间,如在下面表1中所示,可以使用主继电器1103、主继电器2105、充电继电器1107、充电继电器2119和输入继电器121改变电路布线,并且可以使用逆变器115的开关构成升压转换器A和降压转换器B。特别地,添加的部件107、119和121可以装配到作为逆变器的开关设备的功率模块组件(powermodule pack)的外部,因此现有的***配置可以照常使用。
表1
当电动机被驱动以及在充电期间,继电器可以如上面表1那样工作以形成电路布线。具体地,AC外部电源123可以配置成使用逆变器115的三相开关中的两相执行升压控制,使电压升压(例如,增加)到电池电压或以上。进一步地,升压的电压可以充入DC链路电容器113。可以使用逆变器115的三相开关的一相执行降压控制以将DC链路电容器113的电压降压(例如,降低)到目标电池电压。换句话说,可以理解的是,图1可以被简单地改变为图2。逆变器115的开关设备可以由三相构成,其中两相可以被用作升压转换器A,并且一相被用作降压转换器B。
特别地,逆变器的两相可以被用作升压转换器A,但是基于作为为C和D并联连接的控制方法,可以预期逆变器具有更好的性能。此外,当AC电源123为正[+]的时,用作升压转换器A的一相C可以配置成执行升压开关操作,并且当AC电源123是负[-]的时,用作升压转换器A的一相D可以配置成执行升压开关操作,因此该充电***可以配置成无需具有单独的整流器,就能执行升压开关操作。
因此,在图1、图2和图3中例示的充电***可以在没有DC-DC双向转换器的结构中使用逆变器的开关构成升压转换器A和降压转换器B,并且可以配置成执行升压开关操作,而无需包括单独的整流器。因此,如图4所示,可以解决现有问题区域。
换句话说,根据现有技术,在现有逆变充电器的配置中,只有升压控制可以由电动机的电感和逆变器的开关设备执行。因此,在AC输入电压大于高压电池的电压的高的部分(例如,不能进行图4的电压控制的区域)中,不会执行升压电压控制。因此,存在不能用所需电压执行控制的部分。
然而,根据本公开的示例性实施例,可以通过逆变器的开关设备而无需单独的降压转换器或双向DC-DC转换器的配置就能执行升压控制和降压控制。因此,DC链路电压可以通过升压控制被升压到大于AC输入电压的区域,并且DC链路电压可以通过降压控制再被降低到所需的电压,即,高压电池的目标电压,因此,能在可控状态下操作充电***,而不必考虑如现有技术中所教导的现有问题区域。
根据本公开的示例性实施例,充电***配置可以在无需双向DC-DC转换器的结构中使用逆变器211的开关构成升压转换器和降压转换器。进一步地,根据本公开的示例性实施例,充电***配置省略了车载充电器(OBC),有助于减少车辆封装和重量,从而增加车辆的驱动效率。
如上所述,根据本公开的示例性实施例,使用现有的功率电子(PE:power electronic)部件和简化的额外装置,而不使用先前安装在现有技术的电动车辆中的OBC,不管车辆***配置如何,都能够实现具有先前安装在电动车辆内的电动机和逆变器的充电***。因此,能够在所有使用电动机和逆变器的***中实现充电操作,例如,所述***,不管该***是否包括一个电动机、两个电动机和HDC。此外,能够提高封装性能、减少车辆重量,并且大大减少对车载充电器的成本。
在上文中,虽然参考有限的配置和附图描述了本公开,但是本公开并不局限于此,而在不偏离本公开的精神和所附权利要求书的等同形式的情况下可以由本公开所属领域的技术人员进行各种修改和改变。
Claims (8)
1.一种电动车辆的充电***,包括:
直流电源,配置成存储或输出直流电力;
电动机,配置成驱动所述电动车辆;
逆变器,配置成基于电流的流动驱动所述电动机;
交流电源,配置成将电力供应给所述直流电源;
充电继电器,配置成执行开关操作以将从所述逆变器输出的直流电力供应给所述直流电源;以及
输入继电器,配置成执行开关操作以将交流电力供应给所述逆变器。
2.根据权利要求1所述的电动车辆的充电***,其中所述输入继电器包括设置在所述交流电源的两端的两个输入继电器。
3.根据权利要求1所述的电动车辆的充电***,还包括:
两个主继电器,配置成当所述电动机被驱动时,将充入所述直流电源的直流电力供应给所述电动机;以及
辅助电容器,并联连接到所述直流电源,并且设置在所述充电继电器和所述主继电器之间以存储充入所述直流电源中的电力。
4.根据权利要求1所述的电动车辆的充电***,还包括:
电感,设置在所述充电继电器和所述逆变器之间。
5.根据权利要求4所述的电动车辆的充电***,其中所述充电继电器包括:
第一充电继电器,设置在所述直流电源和所述逆变器之间;以及
第二充电继电器,设置在所述电动机和所述输入继电器之间。
6.根据权利要求5所述的电动车辆的充电***,其中所述第二充电继电器串联连接有多个第二充电继电器。
7.根据权利要求1所述的电动车辆的充电***,其中所述逆变器的三相开关中的两相被用作升压转换器,所述升压转换器被配置成使用升压控制使电压升压到电池电压或以上。
8.根据权利要求1所述的电动车辆的充电***,其中所述逆变器的三相开关中的一相被用作降压转换器,所述降压转换器配置成使用降压控制使电容器的电压降压到目标电池电压。
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