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TWI766925B - 用於電動車輛之直流電快速充電站 - Google Patents

用於電動車輛之直流電快速充電站 Download PDF

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TWI766925B
TWI766925B TW106145547A TW106145547A TWI766925B TW I766925 B TWI766925 B TW I766925B TW 106145547 A TW106145547 A TW 106145547A TW 106145547 A TW106145547 A TW 106145547A TW I766925 B TWI766925 B TW I766925B
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coupled
voltage
output stage
stage
rectifier
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TW106145547A
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TW201834344A (zh
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徐菲
阿麥德 依雷瑟
西爾維歐 柯隆畢
金康 許
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美商奇異電器公司
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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
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
    • H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
    • H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC 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
    • H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC 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
    • H02M3/156—Conversion of DC power input into DC power output without intermediate conversion into AC 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 with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of DC power input into DC power output without intermediate conversion into AC 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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • 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
    • B60L53/10—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 the energy transfer between the charging station and the vehicle
    • 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
    • B60L53/10—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 the energy transfer between the charging station and the vehicle
    • B60L53/11—DC charging controlled by the charging station, e.g. mode 4
    • 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
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • H02J3/322—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging
    • 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
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • 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
    • H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
    • H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
    • H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC 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
    • H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC 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
    • H02M3/156—Conversion of DC power input into DC power output without intermediate conversion into AC 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 with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of DC power input into DC power output without intermediate conversion into AC 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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • H02M3/1582—Buck-boost 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
    • H02M3/33571—Half-bridge at primary side of an isolation transformer
    • 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
    • H02M3/33573—Full-bridge at primary side of an isolation transformer
    • 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
    • H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
    • H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters
    • H02M7/06—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
    • 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
    • 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]
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
    • H02M1/007—Plural converter units in cascade
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
    • H02M1/0074—Plural converter units whose inputs are connected in series
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
    • H02M1/008—Plural converter units for generating at two or more independent and non-parallel outputs, e.g. systems with plural point of load switching regulators
    • 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
    • H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
    • H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
    • H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC 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
    • H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC 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
    • H02M3/156—Conversion of DC power input into DC power output without intermediate conversion into AC 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 with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of DC power input into DC power output without intermediate conversion into AC 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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • H02M3/1584—Conversion of DC power input into DC power output without intermediate conversion into AC 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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel
    • 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
    • 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
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H02M7/487—Neutral point clamped inverters
    • 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
    • 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
    • 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
    • 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
    • Y02T90/14—Plug-in electric vehicles

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Dc-Dc Converters (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Rectifiers (AREA)
  • Secondary Cells (AREA)

Abstract

用於一電動車輛之一直流電(DC)充電電路包含一中性點箝位(NPC)整流器及一DC/DC降壓轉換器。該NPC整流器經組態以在一整流器輸出級處將三相AC功率轉換為一第一DC電壓。該DC/DC降壓轉換器包含耦合至該整流器輸出級之一第一DC級及經組態以耦合至該電動車輛之一第二DC級。該DC/DC降壓轉換器經組態以將該第一DC電壓轉換為待供應至該電動車輛之一第二DC電壓。

Description

用於電動車輛之直流電快速充電站
本發明之領域大體上係關於插電式混合電動車輛之充電，且更特定言之，本發明係關於一直流電(DC)快速充電站及其中之能量管理。
通常，插電式混合電動車輛之擁有者想要盡可能快的為其等電池再充電，類似於停在一傳統加油站重新加油。用於插電式混合電動車輛之諸多已知充電系統利用將可用交流電(AC)功率轉換為DC功率以為車輛之電池充電之一車載DC充電器。快速充電通常需要在一短時間內輸送一高電流。諸多DC充電器整合至插電式混合電動車輛內且因此在尺寸、重量及模組化方面受限制。此等充電器通常係低效率且具有低功率密度的。
在一個態樣中，提供用於一電動車輛之一直流電(DC)充電電路。該DC充電電路包含一中性點箝位(NPC)整流器及一DC/DC降壓轉換器。該NPC整流器經組態以在一整流器輸出級處將三相交流電(AC)功率轉換為一第一DC電壓。該DC/DC降壓轉換器包含耦合至該整流器輸出級之一第一DC級及經組態以耦合至該電動車輛之一第二DC級。該DC/DC降壓轉換器經組態以將該第一DC電壓轉換為待供應至該電動車輛之一第二DC電壓。
在另一態樣中，提供用於電動車輛之一DC充電站。該DC充電站包含一多繞組降壓變壓器、一NPC整流器、一DC分配匯電線及第一複數個DC/DC降壓轉換器。該多繞組降壓變壓器經組態以耦合至一三相AC電源。該多繞組降壓變壓器經組態以產生一第一三相AC電壓。該NPC整流器耦合至該多繞組降壓變壓器且經組態以在一整流器輸出級處將該第一三相AC電壓轉換為一第一DC電壓。該DC分配匯電線耦合至該整流器輸出級。該第一複數個DC/DC降壓轉換器之各DC/DC降壓轉換器包含耦合至該DC分配匯電線之一第一DC級及經組態以耦合至一各自電動車輛之一第二DC級。各DC/DC降壓轉換器經組態以將該第一DC電壓轉換為待供應至該各自電動車輛之一各自第二DC電壓。
在又另一態樣中，提供用於電動車輛之一DC充電站。該DC充電站包含一多繞組降壓變壓器、一AC分配匯電線及複數個DC快速充電模組。該多繞組降壓變壓器經組態以耦合至一三相AC電源。該多繞組降壓變壓器經組態以產生一第一三相AC電壓。該AC分配匯電線耦合至該多繞組降壓變壓器且經組態以將該第一三相AC電壓供應至該複數個DC快速充電模組。該複數個DC快速充電模組之各DC快速充電模組包含一NPC整流器及一DC/DC降壓轉換器。該NPC整流器耦合至該AC分配匯電線且經組態以在一整流器輸出級處將該第一三相AC電壓轉換為一第一DC電壓。該DC/DC降壓轉換器包含耦合至該整流器輸出級之一第一DC級及經組態以耦合至複數個電動車輛之一各自電動車輛之一第二DC級。該DC/DC降壓轉換器經組態以將該第一DC電壓轉換為待供應至該各自電動車輛之一各自第二DC電壓。
100:直流電(DC)快速充電站
110:電動車輛
120:三相交流電(AC)電源
130:整流器
140:直流電(DC)分配匯電線
145:整流器輸出級
150:充電位置
160:直流電(DC)/直流電(DC)降壓轉換器
165:第一直流電(DC)級
170:第二直流電(DC)級
200:直流電(DC)快速充電站
210:多繞組降壓變壓器
220:中間交流電(AC)匯電線
300:直流電(DC)快速充電站
310:交流電(AC)分配匯電線
320:直流電(DC)快速充電模組
330:直流電(DC)匯電線
410:電動車輛
420:電動車輛
430:充電電流
440:電池電流
450:柵極電流
510:中央電池
520:直流電(DC)/直流電(DC)轉換器
530:電池電流
540:柵極電流
610:專屬電池
620:直流電(DC)/直流電(DC)轉換器
700:整流器
702:輸出級
704:第一輸出級
706:第二輸出級
708:中點
710:輸入濾波器
712:半導體開關
714:反向鎖定絕緣閘極雙極電晶體(IGBT)
800:直流電(DC)快速充電模組
802:單向三位準直流電(DC)/直流電(DC)降壓轉換器
804:第一直流電(DC)級
806:第二直流電(DC)級
808:半導體開關
810:二極體
812:第一分支
814:第二分支
900:直流電(DC)快速充電模組
902:雙向三位準直流電(DC)/直流電(DC)降壓轉換器
904:第一直流電(DC)級
906:第二直流電(DC)級
908:半導體開關
910:第一分支
912:第二分支
1000:直流電(DC)快速充電模組
1002:中性點箝位(NPC)三位準直流電(DC)/直流電(DC)降壓轉換器
1004:第一直流電(DC)級
1006:第二直流電(DC)級
1008:半導體開關
1010:第一分支
1012:第二分支
1014:第三分支
1016:反向鎖定絕緣閘極雙極電晶體(IGBT)
1100:直流電(DC)快速充電模組
1102:交錯兩位準直流電(DC)/直流電(DC)降壓轉換器
1104:第一直流電(DC)級
1106:第二直流電(DC)級
1108:半導體開關
1110:第一分支
1112:第二分支
1114:第三分支
1200:直流電(DC)快速充電模組
1202:部分功率轉換直流電(DC)/直流電(DC)降壓轉換器
1204:直流電(DC)輸出級
1302:第一直流電(DC)級
1304:第二直流電(DC)級
1306:變壓器
1308:半導體開關
1402:第一直流電(DC)級
1404:第二直流電(DC)級
1406:變壓器
1408:半導體開關
1502:第一直流電(DC)級
1504:第二直流電(DC)級
1506:變壓器
1508:半導體開關
A:相位A
B:相位B
C:相位C
當參考其中相同符號表示整個圖式中之相同部件之附圖閱讀以下詳細描述時將更佳地瞭解本發明之此等及其他特徵、態樣及優勢，其中：圖1係具有用於為一電動車輛充電之一DC分配匯電線之一例示性DC快速充電站之一示意圖；圖2係具有用於為一電動車輛充電之一或多個DC分配匯電線之一替代DC快速充電站之一示意圖；圖3係具有用於為一電動車輛充電之一AC分配匯電線之一替代DC快速充電站之一示意圖；圖4係繪示在圖1及圖2中展示之DC快速充電站中使用之一例示性能量管理策略之一示意圖；圖5係包含一中央儲存電池之圖2中展示之DC快速充電站之一示意圖；圖6係包含專屬儲存電池之圖3中展示之DC快速充電站之一示意圖；圖7係在圖1至圖3中展示之DC快速充電站中使用之一例示性中性點箝位(NPC)整流器之一示意圖；圖8係在圖1至圖3中展示之DC快速充電站中使用之一例示性單向三位準DC/DC降壓轉換器之一示意圖；圖9係在圖1至圖3中展示之DC快速充電站中使用之一例示性雙向三位準DC/DC降壓轉換器之一示意圖；圖10係在圖1至圖3中展示之DC快速充電站中使用之一例示性交錯NPC三位準DC/DC降壓轉換器之一示意圖；圖11係在圖1至圖3中展示之DC快速充電站中使用之一例示性交錯雙向兩位準DC/DC降壓轉換器之一示意圖； 圖12係具有在圖1至圖3中展示之DC快速充電站中使用之一部分功率轉換DC/DC降壓轉換器之一例示性DC快速充電模組之一示意圖；圖13係在圖12中展示之DC快速充電模組中使用之一例示性部分功率轉換DC/DC降壓轉換器之一示意圖；圖14係在圖12中展示之DC快速充電模組中使用之一替代部分功率轉換DC/DC降壓轉換器之一示意圖；圖15係在圖12中展示之DC快速充電模組中使用之另一替代部分功率轉換DC/DC降壓轉換器之一示意圖。
除非另外指示，否則本文提供之圖式意欲繪示本發明之實施例之特徵。相信此等特徵可在包括本發明之一或多個實施例之各種系統中應用。因而，該等圖式不意欲包含一般技術者知道之本文揭示之實施例之實踐所需之所有習知特徵。
在以下說明書及申請專利範圍中，參考具有以下意義之數個術語。
除非本文另外清楚指示，否則單數形式「一」(a、an)及「該」包含複數指示物。
「視情況」或「視情況地」意謂隨後描述之事件或情況可或可不發生，且描述包含在其中發生事件之例項及在其中未發生事件之例項。
在本文整個說明書及申請專利範圍中使用之近似語言可經應用以修改准許更改而不導致與其相關之基礎功能之一變化之任何量化表示。據此，由一或若干術語(諸如，「大約」、「大致」及「實質上」)修改之一值將不限制於指定之精確值。在至少一些例項中，該近似語言可對應於用於量測該值之一儀器之精確度。除非本文或語言另外指示，否則在此處及 整個說明書及申請專利範圍中，範圍限制可經組合及/或交換，此等範圍經識別且包含其中含有之所有子範圍。
一些實施例涉及一或多個電子或運算裝置之使用。此等裝置通常包含一處理器、處理裝置或控制器，諸如，一通用中央處理單元(CPU)、一圖形處理單元(GPU)、一微控制器、一精簡指令集電腦(RISC)處理器、一特定應用積體電路(ASIC)、一可程式化邏輯電路(PLC)、一場可程式化閘極陣列(FPGA)、一數位信號處理(DSP)裝置及/或能夠執行本文描述之功能之任何其他電路或處理裝置。本文描述之方法可編碼為體現於一電腦可讀媒體(包含(但不限制於)一儲存裝置及/或一記憶體裝置)中之可執行指令。當由一處理裝置執行時，此等指令使得該處理裝置執行本文描述之方法之至少一部分。以上實例僅係例示性的，且因此不意欲以任何方式限制術語處理器、處理裝置及控制器之定義及/或意義。
在本文描述之實施例中，記憶體可包含(但不限制於)一電腦可讀媒體(諸如一隨機存取記憶體(RAM))及一電腦可讀非揮發性媒體(諸如，快閃記憶體)。替代地，亦可使用一軟碟、一光碟-唯讀記憶體(CD-ROM)、一磁光碟(MOD)及/或一數位多功能光碟(DVD)。再者，在本文描述之實施例中，額外輸入通道可為(但不限制於)與一操作者介面相關聯之電腦周邊器件，諸如一滑鼠及一鍵盤。替代地，亦可使用可包含(例如但不限制於)一掃描器之其他電腦周邊器件。此外，在例示性實施例中，額外輸出通道可包含(但不限制於)一操作者介面監測器。
本發明之實施例提供用於電動車輛之DC快速充電能力。更具體言之，本發明描述用於DC快速充電站之一些架構，包含具有DC分配匯電線之站點及具有AC分配匯電線之站點。本發明進一步描述使得組件之模組 總成能夠達成所要電壓及需要功率之一DC快速充電模組。本發明進一步描述組合提供電動車輛之擁有者要求之快速充電之AC/DC轉換器及DC/DC轉換器之一些實施例。此外，本發明描述用於自各種能量儲存解決方案(包含(例如但不限制於)集中式電池、分散式電池及電動車輛電池)將充電電流供應給電動車輛之能量管理策略。
圖1係用於為一或多個電動車輛110充電之一例示性DC快速充電站100之一示意圖。DC快速充電站100包含將三相AC功率提供至一整流器130之一三相AC電源120。在特定實施例中，例如且不具有限制性，提供至整流器130之三相AC功率係一中電壓三相電壓。在此一實施例中，將三相4160伏特AC功率提供至整流器130。整流器130將該三相AC功率轉換為在一整流器輸出級145處供應至一DC分配匯電線140之一第一DC電壓。DC分配匯電線140將第一DC電壓供應至用於各自電動車輛110之一或多個充電位置150。充電位置150之各者包含將該第一DC電壓降壓至供應給電動車輛110以為一或多個電池充電之一第二DC電壓之一DC/DC降壓轉換器160。各電動車輛110之特徵在於其充電需求，包含(例如但不限制於)電流、電壓、功率及能量。DC/DC降壓轉換器160包含耦合至DC分配匯電線140之一DC輸入級165及經組態以耦合至電動車輛110之一DC輸出級170。
圖2係用於為一或多個電動車輛110充電之一替代DC快速充電站200之一示意圖。DC快速充電站200包含將三相AC功率提供至一多繞組降壓變壓器210之三相AC電源120。多繞組降壓變壓器210提供三相AC電源120與DC快速充電站200之間之電流隔離。多繞組降壓變壓器210耦合至將一中間AC電壓分配至一或多個整流器130之一中間AC匯電線220。在一 個實施例中，例如(但不限制於)，三相AC電源120將三相4160伏特AC功率提供至多繞組降壓變壓器210，多繞組降壓變壓器210將三相4160伏特AC功率降壓至三相480伏特AC功率。在此一實施例中，例如，各整流器130經額定為將1兆瓦功率供應至一各自DC分配匯電線140。
DC分配匯電線140之各者如以上描述之相對於DC快速充電站100(在圖1中展示)操作以將第一DC電壓供應至一或多個充電位置150。DC分配匯電線140(例如但不限制於)以900伏特DC操作以將達300千瓦之功率供應至各充電位置150。在替代實施例中，DC分配匯電線140可以較高或較低DC電壓操作，且DC/DC降壓轉換器160可根據DC快速充電站200之實施方案供應更多或更少功率。
圖3係用於為一或多個電動車輛110充電之另一替代DC快速充電站300之一示意圖。DC快速充電站200包含將三相AC功率提供至多繞組降壓變壓器210之三相AC電源120。多繞組降壓變壓器210提供三相AC電源120與DC快速充電站300之間之電流隔離。多繞組降壓變壓器210耦合至將三相AC電壓分配至用於各自充電位置150之一或多個DC快速充電模組320之一AC分配匯電線310。DC快速充電模組320之各者包含藉由一DC匯電線330耦合至一DC/DC降壓轉換器160之一整流器130。在一個實施例中，例如(但不限制於)，三相AC電源120將三相4160伏特AC功率提供至多繞組降壓變壓器210，多繞組降壓變壓器210將三相4160伏特AC功率降壓至輸入至AC分配匯電線310上之三相480伏特AC功率。在此一實施例中，各DC快速充電器模組經組態以將300千瓦供應至一各自車輛110。
圖4係繪示在DC快速充電站100及200(在圖1及圖2中展示)中使用之一例示性能量管理策略之一示意圖。DC快速充電站200經組態以為具有擁 有一低電荷狀態(SOC)之一電池之一電動車輛410及具有擁有一高SOC之一電池之一電動車輛420充電。在電動車輛410及420之典型充電期間，電流係自三相AC電源120供應且分配至各自充電位置150。在本文描述之能量管理策略中，自三相AC電源120及電動車輛420之高SOC電池之一組合供應而供應至具有擁有一低SOC之一電池之電動車輛410之一充電電流430。更具體言之，DC/DC降壓轉換器160雙向操作以使得能夠將來自電動車輛420之一電池電流440供應至DC分配匯電線140。另外，整流器130供應由三相AC電源120、多繞組降壓變壓器210及中間AC匯電線220提供之電流，亦稱為一柵極電流450。對電動車輛420中具有一高SOC電池之電池電流440之供應使得DC快速充電站200能夠更有效地將充電電流430提供至電動車輛410。
圖5係進一步包含一中央儲存電池510之DC快速充電站200(在圖2中展示)之一示意圖。DC快速充電站200經組態以自電源之一組合(包含三相AC電源120及中央儲存電池510)為電動車輛110充電。更具體言之，中央儲存電池510通過一DC/DC轉換器520耦合至DC分配匯電線140以將一電池電流530提供至DC分配匯電線140。如以上所描述，三相AC電源120通過多繞組降壓變壓器210將三相AC功率提供至中間AC匯電線220。由整流器130將三相AC功率轉換為第一DC電壓。整流器130將柵極電流供應至DC分配匯電線140。DC分配匯電線140將第一DC電壓供應至一或多個充電位置150以為電動車輛110充電。DC/DC轉換器520在峰值需求期間將電池電流530供應至DC分配匯電線140以減少為電動車輛110充電所需之柵極電流540。反之，當需求較低時，DC/DC轉換器520為中央儲存電池510充電以為後續峰值需求期間儲存能量。
圖6係進一步包含用於充電位置150之各者之專屬儲存電池610之DC快速充電站300(在圖3中展示)之一示意圖。DC快速充電站300經組態以自電源之一組合(包含三相AC電源120及專屬儲存電池610)為電動車輛110充電。更具體言之，各專屬儲存電池610通過一DC/DC轉換器620耦合至一對應DC快速充電模組320之一各自第一DC匯電線330。如以上所描述，三相AC電源120通過多繞組降壓變壓器210將三相AC功率提供至AC分配匯電線310。將三相AC功率供應至各DC快速充電模組320，DC快速充電模組320使用整流器130將三相AC功率轉換為第一DC電壓。整流器130將柵極電流供應至DC匯電線330。專屬儲存電池610通過DC/DC轉換器620將電池電流供應至DC匯電線330以在峰值需求期間為電動車輛110充電。反之，當需求較低時，DC/DC轉換器620為專屬儲存電池610充電以為隨後峰值需求期間儲存自整流器130供應之能量。
圖7係在DC快速充電站100、200及300(分別在圖1至圖3中展示)中使用之一例示性整流器700之一示意圖。整流器700係具有一輸出級702之一中性點箝位(NPC)三位準整流器，該輸出級702包含一第一輸出位準704、一第二輸出位準706及一中點708。整流器700包含經組態以耦合至供應相位A、B及C之一三相AC電源之一輸入濾波器710。整流器700包含用於相位A、B及C之各者之一對半導體開關712。用於一各自相位之各對半導體開關712經協作以在輸出級702處將AC信號整流為一DC電壓。各半導體開關712可體現於(例如且不限制於)一絕緣閘極雙極電晶體(IGBT)、一金屬氧化物半導體場效電晶體(MOSFET)、一雙極接面電晶體(BJT)、一閘極斷開(GTO)閘流體、一整合閘極整流閘流體(IGCT)、一金屬氧化物半導體(MOS)控制電晶體(MCT)，或任何其他適合閘流體，或任何其他適 合切換裝置。再者，可使用任何適合材料實施以上描述之半導體裝置，包含(例如但不限制於)矽(Si)及寬頻寬材料(諸如，碳化矽(SiC)及氮化鎵(GaN))。整流器700包含用於相位A、B及C之各自反向鎖定裝置714，諸如(例如且不限制於)IGBT、MOSFET、BJT、GTO、IGCT、MCT或任何其他適合切換裝置。
圖8係包含在DC快速充電站100、200及300(在圖1至圖3中展示)中使用之一單向三位準DC/DC降壓轉換器802之一例示性DC快速充電模組800之一示意圖。DC快速充電模組800包含在輸出級702處耦合至單向三位準DC/DC降壓轉換器802之整流器700。整流器700將一第一DC電壓供應至單向三位準DC/DC降壓轉換器802之一DC輸入級804，單向三位準DC/DC降壓轉換器802在一降壓模式中操作，從而將第一DC電壓降壓至一第二較低DC電壓，且使得一DC輸出級806處之電流輸出增加。單向三位準DC/DC降壓轉換器802包含與二極體810串聯耦合且配置於第一分支812及第二分支814中之半導體開關808。分支812及814之各者包含一半導體開關808及在第一輸出位準704與中點708之間耦合及在第二輸出位準706與中點708之間耦合之串聯耦合之二極體810。各半導體開關808可體現於(例如且不限制於)IGBT、MOSFET、BJT、GTO、IGCT、MCT或任何其他適合切換裝置。再者，可使用任何適合材料實施以上描述之半導體裝置，包含(例如但不限制於)矽(Si)及寬頻寬材料(諸如，碳化矽(SiC)及氮化鎵(GaN))。
第一分支812及第二分支814之各者之輸出在DC輸出級806處交錯以改良單向三位準DC/DC降壓轉換器802之效率且減少電流漣波。降壓模式中之操作使得DC快速充電模組800能夠與電動車輛110(在圖1至圖3中展 示)之電池之各種額定電壓介接。再者，DC快速充電模組800可分級為10千瓦至1兆瓦，且可與額外DC快速充電模組組合以達成一所要電壓及額定功率。
圖9係包含在DC快速充電站100、200及300(在圖1至圖3中展示)中使用之一雙向三位準DC/DC降壓轉換器902之一替代DC快速充電模組900之一示意圖。DC快速充電模組900包含在輸出級702處耦合至雙向三位準DC/DC降壓轉換器902之整流器700。雙向三位準DC/DC降壓轉換器902使得電流能夠自電動車輛110之一或多個電池反向流動至整流器700內。在正常操作中，整流器700將一第一DC電壓供應至雙向三位準DC/DC降壓轉換器902之一DC輸入級904，雙向三位準DC/DC降壓轉換器902在一降壓模式中操作，從而將第一DC電壓降壓至一第二較低DC電壓，且使得一DC輸出級906處之電流輸出增加。雙向三位準DC/DC降壓轉換器902包含串聯耦合且配置於第一分支910及第二分支912中之半導體開關908。半導體開關908之各者可體現於(例如且不限制於)IGBT、MOSFET、BJT、GTO、IGCT、MCT或任何其他適合切換裝置。再者，可使用任何適合材料實施以上描述之半導體裝置，包含(例如但不限制於)矽(Si)及寬頻寬材料(諸如，碳化矽(SiC)及氮化鎵(GaN))。
分支910及912之各者包含在第一輸出位準704與中點708之間耦合及在第二輸出位準706與中點708之間耦合之串聯耦合之半導體開關908。第一分支910及第二分支912之各者之輸出在DC輸出級906處交錯以改良雙向三位準DC/DC降壓轉換器902之效率且減少電流漣波。降壓模式中之操作使得DC快速充電模組900能夠與電動車輛110(在圖1至圖3中展示)之電池之各種額定電壓介接。再者，DC快速充電模組900可分級為(例如且不 限制於)10千瓦至1兆瓦，且可與額外DC快速充電模組組合以達成一所要電壓及額定功率。
圖10係包含在DC快速充電站100、200及300(在圖1至圖3中展示)中使用之一交錯NPC三位準DC/DC降壓轉換器1002之另一替代DC快速充電模組1000之一示意圖。DC快速充電模組1000包含在輸出級702處耦合至NPC三位準DC/DC降壓轉換器1002之整流器700。整流器700將一第一DC電壓供應至NPC三位準DC/DC降壓轉換器1002之一DC輸入級1004，NPC三位準DC/DC降壓轉換器1002在一降壓模式中操作，從而將第一DC電壓降壓至一第二較低DC電壓，且使得一DC輸出級1006處之電流輸出增加。NPC三位準DC/DC降壓轉換器1002包含串聯耦合且配置於第一分支1010、第二分支1012及第三分支1014中之半導體開關1008。半導體開關1008之各者可體現於(例如且不限制於)IGBT、MOSFET、BJT、GTO、IGCT、MCT或任何其他適合切換裝置。再者，可使用任何適合材料實施以上描述之半導體裝置，包含(例如但不限制於)矽(Si)及寬頻寬材料(諸如，碳化矽(SiC)及氮化鎵(GaN))。
分支1010、1012及1014之各者包含在第一輸出位準704與第二輸出位準706之間耦合之串聯耦合之半導體開關1008。分支1010、1012及1014之各者之中點在第二DC級1006處交錯以改良NPC三位準DC/DC降壓轉換器1002之效率且減少電流漣波。分支1010、1012及1014之各者包含一反向鎖定裝置1016，諸如(例如且不限制於)IGBT、MOSFET、BJT、GTO、IGCT、MCT或任何其他適合切換裝置。再者，可使用任何適合材料實施以上描述之半導體裝置，包含(例如但不限制於)矽(Si)及寬頻寬材料(諸如，碳化矽(SiC)及氮化鎵(GaN))。降壓模式中之操作使得DC快速 充電模組1000能夠與電動車輛110(在圖1至圖3中展示)之電池之各種額定電壓介接。再者，DC快速充電模組1000可分級為(例如且不限制於)10千瓦至1兆瓦，且可與額外DC快速充電模組組合以達成一所要電壓及額定功率。
圖11係包含在DC快速充電站100、200及300(在圖1至圖3中展示)中使用之一交錯兩位準DC/DC降壓轉換器1102之又另一替代DC快速充電模組1100之一示意圖。DC快速充電模組1100包含在輸出級702處耦合至交錯兩位準DC/DC降壓轉換器1102之整流器700。整流器700將一第一DC電壓供應至交錯兩位準DC/DC降壓轉換器1102之一DC輸入級1104，交錯兩位準DC/DC降壓轉換器1102在一降壓模式中操作，從而將第一DC電壓降壓至一第二較低DC電壓，且使得一DC輸出級1106處之電流輸出增加。交錯兩位準DC/DC降壓轉換器1102包含串聯耦合且配置於第一分支1110、第二分支1112及第三分支1114中之半導體開關1108。各半導體開關1108可體現於(例如且不限制於)IGBT、MOSFET、BJT、GTO、IGCT、MCT或任何其他適合切換裝置。再者，可使用任何適合材料實施以上描述之半導體裝置，包含(例如但不限制於)矽(Si)及寬頻寬材料(諸如，碳化矽(SiC)及氮化鎵(GaN))。
分支1110、1112及1114之各者包含在第一輸出位準704與第二輸出位準706之間耦合之串聯耦合之半導體開關1108。分支1110、1112及1114之各者之中點在第二DC級1106處交錯以改良NPC三位準DC/DC降壓轉換器1102之效率且減少電流漣波。降壓模式中之操作使得DC快速充電模組1100能夠與電動車輛110(在圖1至圖3中展示)之電池之各種額定電壓介接。再者，DC快速充電模組1100可分級為(例如且不限制於)自10千瓦 至1兆瓦，且可與額外DC快速充電模組組合以達成一所要電壓及額定功率。
圖12係包含在DC快速充電站100、200及300(在圖1至圖3中展示)中使用之一部分功率轉換DC/DC降壓轉換器1202之一例示性DC快速充電模組1200之一示意圖。DC快速充電模組1200包含在輸出級702處耦合至部分功率轉換DC/DC降壓轉換器1202之NPC整流器700。NPC整流器700將一第一DC電壓供應至部分功率轉換DC/DC降壓轉換器1202，部分功率轉換DC/DC降壓轉換器1202在一降壓模式中操作，從而將第一DC電壓降壓至一第二較低DC電壓，且使得一DC輸出級1204處之電流輸出增加。NPC整流器700將第二輸出位準706供應至DC輸出級1204，而部分功率轉換DC/DC降壓轉換器1202在DC輸出級1204處調節第二DC電壓。
圖13至圖15係在DC快速充電模組1200(在圖12中展示)中使用之例示性部分功率轉換DC/DC降壓轉換器1202之一示意圖。圖13繪示包含一第一DC級1302及一第二DC級1304之部分功率轉換DC/DC降壓轉換器1202之一個例示性實施例。在第一DC級1302處接收一DC輸入電壓且在第二DC級1304處將該DC輸入電壓轉換為一DC輸出電壓。部分功率轉換DC/DC降壓轉換器1202亦包含一變壓器1306及用於實施DC/DC轉換之半導體開關1308。各半導體開關1308可體現於(例如且不限制於)IGBT、MOSFET、BJT、GTO、IGCT、MCT或任何其他適合切換裝置。再者，可使用任何適合材料實施以上描述之半導體裝置，包含(但不限制於)例如矽(Si)及寬頻寬材料(諸如，碳化矽(SiC)及氮化鎵(GaN))。
圖14繪示包含一第一DC級1402及一第二DC級1404之部分功率轉換DC/DC降壓轉換器1202之一替代實施例。在第一DC級1402處接收一DC 輸入電壓且在第二DC級1404處將該DC輸入電壓轉換為一DC輸出電壓。部分功率轉換DC/DC降壓轉換器1202亦包含一變壓器1406及用於實施DC/DC轉換之半導體開關1408。各半導體開關1408可體現於(例如且不限制於)IGBT、MOSFET、BJT、GTO、IGCT、MCT或任何其他適合切換裝置。再者，可使用任何適合材料實施以上描述之半導體裝置，包含(例如但不限制於)矽(Si)及寬頻寬材料(諸如，碳化矽(SiC)及氮化鎵(GaN))。
圖15繪示包含一第一DC級1502及一第二DC級1504之部分功率轉換DC/DC降壓轉換器1202之另一替代實施例。在第一DC級1502處接收一DC輸入電壓且在第二DC級1504處將該DC輸入電壓轉換為一DC輸出電壓。部分功率轉換DC/DC降壓轉換器1202亦包含一變壓器1506及用於實施DC/DC轉換之半導體開關1508。各半導體開關1508可體現於(例如且不限制於)IGBT、MOSFET、BJT、GTO、IGCT、MCT或任何其他適合切換裝置。再者，可使用任何適合材料實施以上描述之半導體裝置，包含(例如但不限制於)矽(Si)及寬頻寬材料(諸如，碳化矽(SiC)及氮化鎵(GaN))。
本發明之以上描述之實施例提供用於電動車輛之DC快速充電能力。更具體言之，本發明描述用於DC快速充電站之一些架構，包含具有DC分配匯電線之站點及具有AC分配匯電線之站點。本發明進一步描述使得組件之模組總成能夠達成所要電壓及需要功率之一DC快速充電模組。本發明進一步描述組合提供電動車輛要求之快速充電之AC/DC轉換器及DC/DC轉換器之一些實施例。此外，本發明描述用於自各種能量儲存解決方案(包含(例如且不限制於)集中式電池、分散式電池及電動車輛電池)將充電電流供應給電動車輛之能量管理策略。
本文描述之方法、系統及設備之一例示性技術效應包含以下至少一者：(a)減少供應至電動車輛之電流漣波；(b)改良DC/DC轉換效率；(c)提供模組DC快速充電裝置以容納電動車輛之更多種功率及電壓需求；(d)消除整合至電動車輛中之一DC快速充電裝置之需求，藉此減少重量且改良電動車輛效率；(e)提供一可調整DC電壓；(f)改良DC快速充電站中之功率密度；(g)通過使用各充電位置之中央電池或專屬儲存電池在峰值期間減少柵極電流需求；及(h)至少部分自一高SOC電動車輛電池為一低SOC電動車輛電池供應充電電流。
用於DC快速充電站之方法、系統及設備之例示性實施例不限制於本文描述之特定實施例，確切而言，系統之組件及/或方法之步驟可單獨且與本文描述之其他組件及/或步驟分開使用。例如，該等方法亦可與其他非習知快速充電器組合使用，且不限制於僅利用本文描述之系統及方法實踐。確切而言，例示性實施例可結合可受益於增加之效率、減少之操作成本及減少之資本支出之諸多其他應用、設備及系統經實施及使用。
儘管本發明之各種實施例之特定特徵可在一些圖式而不係其他圖式中展示，但此僅為方便起見。根據本發明之原理，一圖式之任何特徵可結合任何其他圖式之任何特徵而經參考及/或主張。
此書面描述使用實例揭示實施例，包含最佳模式，且亦使得熟習技術者能夠實踐該等實施例，包含製作且使用任何裝置或系統且執行任何併入之方法。本發明之專利保護範圍由申請專利範圍界定，且可包含熟習技術者明白之其他實例。若此等其他實例具有與申請專利範圍之字面語言相同之結構元件或若包含與申請專利範圍之字面語言具有較少差異之等效結構元件，則此等其他實例意欲落於申請專利範圍之範疇內。
100‧‧‧直流電(DC)快速充電站
110‧‧‧電動車輛
120‧‧‧三相交流電(AC)電源
130‧‧‧整流器
140‧‧‧直流電(DC)分配匯電線
145‧‧‧整流器輸出級
150‧‧‧充電位置
160‧‧‧直流電(DC)/直流電(DC)降壓轉換器
165‧‧‧第一直流電(DC)級
170‧‧‧第二直流電(DC)級

Claims (10)

  1. 一種用於電動車輛(110)之直流電(DC)充電站(100)，該DC充電站包括：一多繞組降壓(multi-winding step-down)變壓器，其經組態以耦合至一三相交流電(AC)電源(120)，該多繞組降壓變壓器經組態以產生一第一三相AC電壓；一中性點箝位(neutral-point clamped；NPC)整流器(700)，其耦合至該多繞組降壓變壓器且經組態以在一整流器輸出級處將該第一三相AC電壓轉換為一第一DC電壓；一DC分配匯電線(140)，其耦合至該整流器輸出級；第一複數個DC/DC降壓轉換器(buck converters)(160)，該第一複數個DC/DC降壓轉換器之各DC/DC降壓轉換器包括耦合至該DC分配匯電線之一第一DC級(165)，及經組態以耦合至一各自電動車輛之一第二DC級(170)，該第二DC級進一步經組態以將該第一DC電壓轉換為待供應至該各自電動車輛之一各自第二DC電壓；及一中央儲存電池(510)，其通過一電池功率轉換器(520)耦合至該DC分配匯電線，該電池功率轉換器經組態以在一低需求期間自該DC分配匯電線為該中央儲存電池充電，且在一峰值需求期間自該中央儲存電池將電流供應至該DC分配匯電線。
  2. 如請求項1之DC充電站，其進一步包括：一第二中性點箝位(NPC)整流器，其耦合至該多繞組降壓變壓器且經 組態以在一第二整流器輸出級處將該第一三相AC電壓轉換為該第一DC電壓；一第二DC分配匯電線，其耦合至該第二整流器輸出級；及第二複數個DC/DC降壓轉換器，該第二複數個DC/DC降壓轉換器之各DC/DC降壓轉換器包括：一第一DC級，其耦合至該第二DC分配匯電線；及一第二DC級，其經組態以耦合至一各自電動車輛，該第二DC級進一步經組態以將該第一DC電壓轉換為待供應至該各自電動車輛之一各自第二DC電壓。
  3. 如請求項1之DC充電站，其中該第一複數個DC/DC降壓轉換器包括：一第一DC/DC降壓轉換器，其耦合至在一第一充電狀態處具有一第一電池之一第一電動車輛；及一第二DC/DC降壓轉換器，其耦合至在高於該第一充電狀態之一第二充電狀態處具有一第二電池之一第二電動車輛，該第二DC/DC降壓轉換器經組態以自該第二電池將電流供應至該DC分配匯電線。
  4. 如請求項1之DC充電站，其中該NPC整流器包括一NPC 3位準轉換器及一反向鎖定絕緣閘極雙極電晶體(IGBT)。
  5. 如請求項1之DC充電站，其中：該第一複數個DC/DC降壓轉換器之各DC/DC降壓轉換器包括： 一第一雙向三位準降壓轉換器，其包括一第一DC輸出級；及一第二雙向三位準降壓轉換器，其包括與該第一DC輸出級交錯之一第二DC輸出級。
  6. 一種用於電動車輛(110)之直流電(DC)充電站(200)，該DC充電站包括：一多繞組降壓變壓器(210)，其經組態以耦合至一三相交流電(AC)電源(120)，該多繞組降壓變壓器經組態以產生一第一三相AC電壓；一AC分配匯電線(220)，其耦合至該多繞組降壓變壓器且經組態以供應該第一三相AC電壓；及複數個DC快速充電模組(330)，該複數個DC快速充電模組之各DC快速充電模組包括：一中性點箝位(NPC)整流器(700)，其耦合至該AC分配匯電線且經組態以在一整流器輸出級處將該第一三相AC電壓轉換為一第一DC電壓；及一DC/DC降壓轉換器(160)，其包括耦合至該整流器輸出級之一第一DC級(165)及經組態以耦合至該複數個電動車輛之一各自電動車輛之一第二DC級，且經組態以在一峰值需求期間自一中央儲存電池將第一電流轉換至DC分配匯電線；其中該複數個DC快速充電模組之各DC快速充電模組進一步包括通過一電池功率轉換器(620)耦合至該整流器輸出級之一專屬儲存電池(610)，該電池功率轉換器經組態以在一低需求期間自該整流器輸出級為該專屬儲存電池充電，且在一峰值需求期間自該專屬儲存電池將電流供應 至該各自電動車輛。
  7. 如請求項6之DC充電站，其中該複數個DC快速充電模組之各DC快速充電模組之該NPC整流器包括一NPC 3位準轉換器及一反向鎖定絕緣閘極雙極電晶體(IGBT)。
  8. 如請求項6之DC充電站，其中該複數個DC快速充電模組之各DC快速充電模組之該DC/DC降壓轉換器包括：一第一雙向三位準降壓轉換器，其包括一第一DC輸出級；及一第二雙向三位準降壓轉換器，其包括與該第一DC輸出級交錯之一第二DC輸出級。
  9. 如請求項6之DC充電站，其中該複數個DC快速充電模組之各DC快速充電模組之該DC/DC降壓轉換器包括：一第一單向三位準降壓轉換器，其包括一第一DC輸出級；及一第二單向三位準降壓轉換器，其包括與該第一DC輸出級交錯之一第二DC輸出級。
  10. 如請求項6之DC充電站，其中該複數個DC快速充電模組之各DC快速充電模組之該DC/DC降壓轉換器包括：一第一雙向兩位準降壓轉換器，其包括一第一DC輸出級；及一第二雙向兩位準降壓轉換器，其包括與該第一DC輸出級交錯之一第二DC輸出級。
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