CN105751915A - 光伏储能直流快充桩 - Google Patents

光伏储能直流快充桩 Download PDF

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CN105751915A
CN105751915A CN201610321429.XA CN201610321429A CN105751915A CN 105751915 A CN105751915 A CN 105751915A CN 201610321429 A CN201610321429 A CN 201610321429A CN 105751915 A CN105751915 A CN 105751915A
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circuit
direct current
photovoltaic
charging pile
filter capacitor
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蒋小春
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Sichuan Huarui High Energy Technology Co. Ltd
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蒋小春
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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
    • B60L53/50—Charging stations characterised by energy-storage or power-generation means
    • B60L53/51—Photovoltaic means
    • 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
    • B60L53/31—Charging columns specially adapted for electric 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
    • 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
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

光伏储能直流快充桩,顺次连接光伏电池板、多个并联直流模块组成的转换电路、充电枪；且设电池阵列,通过两端开关后与转换电路两端并联；转换电路、充电枪和电池阵列组成光伏直流充电桩。每个直流模块顺次连接直流滤波电容电路、全桥MOS逆变器、谐振电路、二极管整流电路和输出滤波电容电路。与现有光伏直流充电桩比:总损耗降低了63％；成本下降50％；占地减小35％。且可用电池阵列给光伏直流充电桩供电，大大提高太阳能资源利用率。特别适用于无电网、光照好的偏远地区,例如荒漠、戈壁等。

Description

光伏储能直流快充桩
(一)技术领域：本发明涉及一种直流充电桩,属供电或配电电路装置类(G02j)。
(二)背景技术
电动汽车是汽车发展的热点方向,充电桩其功能类似于加油站的加油机，使人们很方便的向电动汽车充电。
充电桩可分为交流充电桩和直流充电桩。交流充电桩直接将电网交流电传输给电动汽车，由电动汽车内车载充电机进行电能变换，再给电池充电。因此结构简单，功率小，也叫慢速充电桩。直流充电桩是将电网转变为符合车载电池需求的直流电后，直接给车载电池充电。其功率大，技术要求高，也叫快速充电桩。
一般直流充电桩的输入端与交流电网直接连接，输出端都装有充电插头用于电动汽车充电。而采用光伏电池板向充电桩的供电***，叫光伏直流充电***。现有的光伏直流充电***见图1，由光伏电池板1N，光伏逆变器2N和直流充电桩3N组成。其中,光伏逆变器2N由滤波电容C2N电路、三相逆变桥2N1和LCL滤波器2N2组成。光伏逆变器中的三相逆变桥2N1一般是采用絕缘栅双极型晶体管IGBT。其中,直流充电桩3N通常由多个AC/DC模块并联组成。
见图2,每个AC/DC模块电路包括：APFC电路3N1、直流滤波电容电路3N2、基于LLC的DC/DC变换电路3N3以及输出滤波电容电路3N4。(APFC是主动型功率因数校正的英文缩写。)其中APFC电路3N1中有:电感L3N1、整流二极管D3N1、MOS管Q3N1。直流滤波电容电路3N2中有直流滤波电容C3N2。基于LLC的DC/DC变换电路3N3中有:MOS管Q3N3、电感L3N3、电容C3N3、高频变压器T3N3、整流二极管D3N3。输出滤波电容电路3N4有输出滤波电容C3N4。MOS管全称是：金属氧化物场效应晶体管。
上述现有的光伏直流充电桩存在如下问题:设备多、损耗大、成本高、占地大。
(三)发明内容：
本发明提供的光伏储能直流快充桩,其目的就是解决现有普通的光伏直流充电桩存在的设备多、损耗大、成本高、占地大等问题。
技术方案如下:光伏储能直流快充桩,其特征是:
1)光伏电池板1输出端与多个并联直流模块2组成的转换电路连接,转换电路输出端接充电枪3；且设电池阵列4,并通过电池阵列两端开关4.1、4.2后与转换电路两端并联；转换电路、充电枪3和电池阵列4组成光伏直流充电桩。2)每个直流模块2电路为:顺次连接的直流滤波电容电路2.1、全桥MOS逆变器2.2、谐振电路2.3、二极管整流电路2.4和输出滤波电容电路2.5。
本发明有益效果：
采用本发明新设计的光伏储能直流快充桩,与现有普通的光伏直流充电桩比较,有如下优点:
1)总损耗降低了63％:由现有的光伏电池板1N、光伏逆变器2N(损耗3％)和直流充电桩3N(损耗5％)变为光伏电池板1和光伏直流充电桩(损耗3％),总损耗由8％下降到3％,即总损耗降低了63％。
2)本发明删除了现有的光伏逆变器2N设备和直流充电桩3N前端的APFC电路3N1(即主动型功率因素矫正装置3N1)，使成本下降50％。
3)光优直流充电桩包括有多个直流模块并联的转换电路,即自带光伏发电最大功率点追踪MPPT功能,设备高度集成，占地减小35％。
4)通过给光伏直流快充桩配备储能电池阵列4，还可以在光照强的条件下，将多余的电能存储起来，在光照不足时，由储能电池给光伏直流充电桩供电，大大提高太阳能资源利用率。
5)特别适用于无电网、光照好的偏远地区,例如荒漠、戈壁等
(四)附图说明
图1现有光伏直流充电***结构框图。
图2图1中直流充电桩3N中每个AC/DC模块电路图。
图3本发明光伏储能直流快充桩结构框图。
图4图3中每个直流模块2电路图。
(五)具体实施方式
见图3,本实施例光伏储能直流快充桩由光伏电池板1和光伏直流充电桩组成。光伏直流充电桩包括:①多个直流模块2并联组成的转换电路。②转换电路输出端连接的充电枪3。③设电池阵列4,并通过电池阵列两端开关4.1、4.2后与转换电路两端并联。
见图4,每个直流模块2电路(也可称为DC/DC模块)为:顺次连接的①直流滤波电容电路2.1、②全桥MOS逆变器2.2、③谐振电路2.3、④二极管整流电路2.4和⑤输出滤波电容电路2.5。其中全桥MOS逆变器2.2、谐振电路2.3和二极管整流电路2.4组成基于LLC的DC/DC变换电路。
上述①直流滤波电容电路2.1中直流滤波电容为C2.1。功能:稳定DC/DC变换电路输入电压，并提供高频纹波电流。②全桥MOS逆变器2.2中有四个MOS管Q2.2。功能:将直流变为脉冲交流。③谐振电路2.3中有:谐振电感L2.3、谐振电容C2.3和高频隔离变压器T2.3。功能:使全桥MOS逆变器2.2中MOS管和二极管整流电路2.4中整流二极管工作在软开关状态,所述软开关状态即开关管几乎零损耗地从关断状态转为开通状态或者从开通状态转为关断状态。使DC/DC转换电路效率高。④二极管整流电路2.4:由四个整流二极管D2.4组成。功能:将脉冲交流变为直流电。⑤输出滤波电容电路2.5:由输出滤波电容C2.5组成。功能:滤除整流后的高频纹波电流，使输出直流电满足电池需求。提供给充电枪3或电池阵列4。

Claims (1)

1.光伏储能直流快充桩,其特征是:
1)光伏电池板(1)输出端与多个并联直流模块(2)组成的转换电路连接,转换电路输出端接充电枪(3)；且设电池阵列(4),并通过电池阵列两端开关(4.1、4.2)后与转换电路两端并联；转换电路、充电枪和电池阵列组成光伏直流充电桩；
2)每个直流模块(2)电路为:顺次连接的直流滤波电容电路(2.1)、全桥MOS逆变器(2.2)、谐振电路(2.3)、二极管整流电路(2.4)和输出滤波电容电路(2.5)。
CN201610321429.XA 2016-05-16 2016-05-16 光伏储能直流快充桩 Pending CN105751915A (zh)

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CN108233485A (zh) * 2018-02-09 2018-06-29 江苏建筑职业技术学院 一种基于直流固态变压器的多功能充电桩***
CN108275022A (zh) * 2018-02-12 2018-07-13 北京新科聚能光电技术有限公司 电动汽车用太阳电池直接供电的全直流充电桩
CN108528263A (zh) * 2018-06-08 2018-09-14 重庆聚陆新能源有限公司 一种高效率的电动汽车直流快充***
FR3091676A1 (fr) * 2019-01-14 2020-07-17 Jacqueline Courrèges Module autonome pour recharger un véhicule électrique et son procédé de fonctionnement

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CN103516224A (zh) * 2013-10-09 2014-01-15 清华大学 一种用于双主动全桥直流变换器的混合移相控制方法
CN203423529U (zh) * 2013-09-12 2014-02-05 河北博联通讯科技有限责任公司 一种新能源汽车锂电池智能车载充电机
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CN205123614U (zh) * 2015-11-05 2016-03-30 江苏食品药品职业技术学院 一种光伏逆变器电路

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CN201616680U (zh) * 2010-02-08 2010-10-27 南京国睿新能电子有限公司 能量回馈电网式节能直流电子负载
CN102097966A (zh) * 2011-02-14 2011-06-15 东南大学 级联型兆瓦级光伏并网逆变器
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108233485A (zh) * 2018-02-09 2018-06-29 江苏建筑职业技术学院 一种基于直流固态变压器的多功能充电桩***
CN108275022A (zh) * 2018-02-12 2018-07-13 北京新科聚能光电技术有限公司 电动汽车用太阳电池直接供电的全直流充电桩
CN108528263A (zh) * 2018-06-08 2018-09-14 重庆聚陆新能源有限公司 一种高效率的电动汽车直流快充***
FR3091676A1 (fr) * 2019-01-14 2020-07-17 Jacqueline Courrèges Module autonome pour recharger un véhicule électrique et son procédé de fonctionnement
WO2020148491A1 (fr) * 2019-01-14 2020-07-23 Courreges Jacqueline Module autonome pour recharger un vehicule electrique et son procede de fonctionnement

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