CN108418451A - 一种高频隔离的多种电压输出装置 - Google Patents

一种高频隔离的多种电压输出装置 Download PDF

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CN108418451A
CN108418451A CN201810416463.4A CN201810416463A CN108418451A CN 108418451 A CN108418451 A CN 108418451A CN 201810416463 A CN201810416463 A CN 201810416463A CN 108418451 A CN108418451 A CN 108418451A
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frequency
transform parts
voltage
transform
output device
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王进
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Shenzhen Pengcheng New Energy Technology Co Ltd
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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
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • 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
    • 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
    • H02M7/53—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 using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • 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
    • H02M7/53—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 using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5387—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
    • 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
    • H02M1/0077—Plural converter units whose outputs 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
    • 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
    • H02M7/493—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 the static converters being arranged for operation in parallel

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

本发明提供一种高频隔离的多种电压输出装置，包括一个高频DC/AC变换环节、高压侧两个副绕组的高频变压器、两个高频AC/DC变换环节、两个DC/AC高频逆变环节，所述一个高频DC/AC变换环节、高压侧两个副绕组的高频变压器、两个高频AC/DC变换环节、两个DC/AC高频逆变环节依次相连，其中高频DC/AC变换环节将直流电压变换为高频AC电压，通过高频变压器以及两个高频AC/DC变换环节实现电压隔离，将某种直流电压变换为两路隔离的直流电压，两个DC/AC高频逆变环节的输出能够在并联和级联之间切换，并联输出120V电压，级联输出240V电压，本发明能够极大地提高***效率，降低***成本和体积。

Description

一种高频隔离的多种电压输出装置
技术领域
本发明属于电力电子应用领域，涉及一种高频隔离的多种电压输出装置。
背景技术
某些国家电网负载，其电压有120/240V电压等级，需要一种能够满功率运行在这两种电压范围的电力电子装置，目前对于120/240V可切换的电力电子电路，主要采用工频隔离变压器方案，工频隔离变压器比较粗大笨重，同时效率低，成本也较高。
发明内容
本发明解决的技术问题是：相比于现有技术，提供一种高频隔离的多种电压输出装置，实现在不同电压满功率输出，提高***效率，同时降低***体积和设计成本。
本发明的上述目的通过以下技术方案予以实现:一种高频隔离的多种电压输出装置，包括一个高频DC/AC变换环节、高压侧两个副绕组的高频变压器、两个高频AC/DC变换环节、两个DC/AC高频逆变环节，所述一个高频DC/AC变换环节、高压侧两个副绕组的高频变压器、两个高频AC/DC变换环节、两个DC/AC高频逆变环节依次相连，其中高频DC/AC变换环节将直流电压变换为高频AC电压，通过高频变压器以及两个高频AC/DC变换环节实现电压隔离，将某种直流电压变换为两路隔离的直流电压，两个DC/AC高频逆变环节的输出能够在并联和级联之间切换，从而实现在多种电压输出情况下满功率输出。
进一步地，所述高频DC/AC变换环节和所述高频AC/DC变换环节采用软开关电路。
进一步地，所述高频DC/AC变换环节和所述高频AC/DC变换环节采用软开关电路包括推挽、移相全桥、LLC、CLLC等软开关电路,电路能量流向可以为双向***或单向***。
进一步地，所述两个DC/AC高频逆变环节的输出并联连接，通过***控制两路并联输出120V电压，同时控制逆变电流均流。
进一步地，所述两个DC/AC高频逆变环节的输出级联连接，通过***控制两路级联输出240V电压，同时逆变电流流经两个高频DC/AC逆变环节。
本发明与现有技术相比具有如下技术效果：本发明通过高频隔离技术在不增加电路开关器件的基础上，能够实现在不同电压（120/240V）满功率输出，相对于现有采用工频隔离的***来说，节省了体积笨重的工频变压器，同时由于采用了高频软开关技术，能够极大地提高***效率，降低***成本和体积，相对工频隔离，效率提升2-3%；相对于现有采用单电路输出的***，采用240V满功率输出，意味着在120V输出只能实现半功率输出，采用本技术能够实现120V满功率输出，极大地拓展应用范围。
附图说明
图1是本发明的两个DC/AC高频逆变环节级联输出240V电压的示意图。
图2是本发明的两个DC/AC高频逆变环节并联输出120V电压的示意图。
图3是本发明的高频DC/AC变换环节、高频AC/DC变换环节采用半桥CLLC软开关拓扑，两个高频DC/AC逆变环节采用全桥逆变、级联输出240V电压的示意图。
图4是本发明的高频DC/AC变换环节、高频AC/DC变换环节采用半桥CLLC软开关拓扑，两个高频DC/AC逆变环节采用全桥逆变、并联输出120V电压的示意图。
具体实施方式
下面结合附图对本发明作进一步说明，以使本领域的技术人员可以更好的理解本发明并能予以实施。
图1和图2是本发明一种高频隔离的多种电压输出装置的结构示意图，包括一个高频DC/AC变换环节、高压侧两个副绕组的高频变压器、两个高频AC/DC变换环节、两个DC/AC高频逆变环节，所述一个高频DC/AC变换环节、高压侧两个副绕组的高频变压器、两个高频AC/DC变换环节、两个DC/AC高频逆变环节依次相连，其中高频DC/AC变换环节将直流电压变换为高频AC电压，通过高频变压器以及两个高频AC/DC变换环节实现电压隔离，将某种直流电压变换为两路隔离的直流电压，两个DC/AC高频逆变环节的输出能够在并联和级联之间切换。
参见图3和图4，高频DC/AC变换环节和两个高频AC/DC变换环节采用半桥CLLC软开关拓扑，两个DC/AC高频逆变环节采用全桥逆变电路，高频DC/AC变换环节将输入侧直流电压变换为高频交流电压，通过高压侧带两个副绕组的高频变压器传递能量，输出两路隔离的直流电压，每路隔离的直流电压通过DC/AC高频逆变环节输出两路隔离的120V交流电压。
两路隔离的交流电压，通过级联作为输出，两个DC/AC高频逆变环节流经的电流一致，级联输出240V交流电压，而且能够满功率运行，参见图3。
两路隔离的交流电压，通过并联作为输出，两个DC/AC高频逆变环节流经的电流通过控制均流，并联输出120V交流电压，而且能够满功率运行，参见图4。
上述仅为本发明的较佳实施例及所运用技术原理,本发明不限于这里所述的特定实施例，对本领域技术人员来说能够进行各种明显的变化、重新调整和替代而不会脱离本发明的保护范围，本发明的保护范围由所附的权利要求范围决定。

Claims (6)

1.一种高频隔离的多种电压输出装置，其特征在于：包括一个高频DC/AC变换环节、高压侧两个副绕组的高频变压器、两个高频AC/DC变换环节、两个DC/AC高频逆变环节，所述一个高频DC/AC变换环节、高压侧两个副绕组的高频变压器、两个高频AC/DC变换环节、两个DC/AC高频逆变环节依次相连，其中高频DC/AC变换环节将直流电压变换为高频AC电压，通过高频变压器以及两个高频AC/DC变换环节实现电压隔离，将某种直流电压变换为两路隔离的直流电压，两个DC/AC高频逆变环节的输出能够在并联和级联之间切换，从而实现在多种电压输出情况下满功率输出。
2.根据权利要求1所述的一种高频隔离的多种电压输出装置，其特征在于：所述高频DC/AC变换环节和所述高频AC/DC变换环节采用软开关电路。
3.根据权利要求1所述的一种高频隔离的多种电压输出装置，其特征在于：所述高频DC/AC变换环节和所述高频AC/DC变换环节采用的软开关电路包括推挽、移相全桥、LLC、CLLC等软开关电路。
4.根据权利要求3所述的一种高频隔离的多种电压输出装置，其特征在于：所述高频DC/AC变换环节和所述高频AC/DC变换环节采用半桥CLLC电路。
5.根据权利要求1所述的一种高频隔离的多种电压输出装置，其特征在于：所述两个DC/AC高频逆变环节的输出并联连接，通过***控制两路并联输出120V电压，同时控制逆变电流均流。
6.根据权利要求1所述的一种高频隔离的多种电压输出装置，其特征在于：所述两个DC/AC高频逆变环节的输出级联连接，通过***控制两路级联输出240V电压，同时逆变电流流经两个高频DC/AC逆变环节。
CN201810416463.4A 2018-05-03 2018-05-03 一种高频隔离的多种电压输出装置 Pending CN108418451A (zh)

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CN104578859A (zh) * 2015-01-19 2015-04-29 西安交通大学 一种单相电力电子变压器直流母线电压均压控制方法
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US20170012535A1 (en) * 2015-07-10 2017-01-12 The Board Of Trustees Of The Leland Stanford Junior University Isolated multi-level resonant toplogies for wide-range power conversion and impedance matching
CN107026580A (zh) * 2017-05-19 2017-08-08 南京理工大学 一种isop分布式逆变器***的输出同相位控制方法
CN207039192U (zh) * 2017-07-26 2018-02-23 长沙理工大学 轮换式级联h桥型动态电压恢复及有源滤波电路
CN207184330U (zh) * 2017-08-14 2018-04-03 深圳市保益新能电气有限公司 一种宽范围软开关直流变换电路

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1725620A (zh) * 2004-07-22 2006-01-25 郑州正鸿电气有限责任公司 交直流两用高压小电流功率电源
CN102611318A (zh) * 2012-04-16 2012-07-25 唐山电动车研发与检测有限公司 连续可调的变结构恒功率电源
CN104578859A (zh) * 2015-01-19 2015-04-29 西安交通大学 一种单相电力电子变压器直流母线电压均压控制方法
CN104734187A (zh) * 2015-03-12 2015-06-24 国家电网公司 用于风力发电***的储能式智能变压器
US20170012535A1 (en) * 2015-07-10 2017-01-12 The Board Of Trustees Of The Leland Stanford Junior University Isolated multi-level resonant toplogies for wide-range power conversion and impedance matching
CN107026580A (zh) * 2017-05-19 2017-08-08 南京理工大学 一种isop分布式逆变器***的输出同相位控制方法
CN207039192U (zh) * 2017-07-26 2018-02-23 长沙理工大学 轮换式级联h桥型动态电压恢复及有源滤波电路
CN207184330U (zh) * 2017-08-14 2018-04-03 深圳市保益新能电气有限公司 一种宽范围软开关直流变换电路

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