CN106981973A - 一种用于高压链式功率单元控制板的备用供电方法 - Google Patents

一种用于高压链式功率单元控制板的备用供电方法 Download PDF

Info

Publication number
CN106981973A
CN106981973A CN201610034661.5A CN201610034661A CN106981973A CN 106981973 A CN106981973 A CN 106981973A CN 201610034661 A CN201610034661 A CN 201610034661A CN 106981973 A CN106981973 A CN 106981973A
Authority
CN
China
Prior art keywords
power
power supply
unit control
stand
control plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610034661.5A
Other languages
English (en)
Inventor
李计亮
许崇福
袁国权
胡春龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XI'AN AOTEXUN ELECTRIC POWER ELECTRONIC TECHNOLOGY Co Ltd
Original Assignee
XI'AN AOTEXUN ELECTRIC POWER ELECTRONIC TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by XI'AN AOTEXUN ELECTRIC POWER ELECTRONIC TECHNOLOGY Co Ltd filed Critical XI'AN AOTEXUN ELECTRIC POWER ELECTRONIC TECHNOLOGY Co Ltd
Priority to CN201610034661.5A priority Critical patent/CN106981973A/zh
Publication of CN106981973A publication Critical patent/CN106981973A/zh
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
    • 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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • 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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
    • 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
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0006—Arrangements for supplying an adequate voltage to the control circuit of converters
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30—Reactive power compensation
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

Abstract

本发明公开了一种用于高压链式功率单元控制板的备用供电方法，该方法利用相邻功率单元控制板的供电电源为本功率单元控制板提供备用供电。是一种低成本的实现功率单元控制板的备用供电方法，通过较低的成本提高功率单元控制板的供电可靠性。本发明的有益效果在于：(1)供电方法可靠性高:在链式功率单元中除了首尾两个功率单元控制板为双电源供电，其余功率单元控制板为三电源供电，供电可靠性高。(2)供电方法成本低:在实现双电源供电甚至三电源供电的前提下，供电方法成本相比不考虑冗余的高压直流取能方法仅仅增加了差模电感、共模电感、差模电容以及连接导线，成本增加非常小。

Description

一种用于高压链式功率单元控制板的备用供电方法
技术领域：
本发明属于电力电子技术领域，涉及一种用于高压链式功率单元控制板的备用供电方法，尤其是一种适用于高压静止无功补偿装置、高压变频器的功率单元控制板备用供电方法。
背景技术：
在高压静止无功补偿装置以及高压变频器中，功率单元控制板包括检测电路、驱动电路、控制系统、通讯电路以及电源电路等电路结构，供电电压一般为+5V、±15V以及+24V，其供电质量以及可靠性直接影响功率单元的安全可靠运行。功率单元控制板的供电方法可以选择低压交流取能、高压交流取能以及高压直流取能三种方法，而采用以上单一方法为功率单元控制板供电时可能由于器件性能、生成工艺等原因导致控制电路供电不正常从而导致装置退出运行，严重时甚至会损坏功率单元。为提高功率单元控制板的供电可靠性，可以采用备用供电方法为功率单元控制板供电。
专利CN102931664采用低压交流取能方法，低压220V电源通过中频恒流电源、中频隔离变压器、高压绝缘电缆、取能电流互感器以及电源转换板为功率单元控制板供电。由于供电电路的复杂性，方法成本高、可靠性低、体积大不利于功率单元紧凑化设计，其中隔离变压器需要满足高低压之间的电气绝缘设计难度较大。
专利CN103384119采用高压交流取能方法，利用功率单元交流母线通过降压变压器、电源转换模块为控制电路供电，方法简单成本较低，其中降压变压器不需要考虑高低压之间的电气绝缘。此供电方法没有考虑备用供电，供电可靠性较差。
专利CN102097948采用高压直流取能方法，利用功率单元的直流母线为控制板供电，并且为提高供电可靠性将多路直流取能电源并联实现备用供电，当一路直流取能电源故障退出时另一部备用电源为功率单元控制电路供电。此种供电方法的供电可靠性是通过多路直流取能电源并联方法实现的，成本较高，并且备用供电是在功率单元直流母线正常的前提下才能实现，当功率单元运行不正常导致直流母线电压过压或者欠压时，此种供电方法不能为控制电路提供电能。
专利CN102427270采用高压直流取能以及高压交流取能实现备用供电，低交流电压输入时通过直流母线为控制电路供电，高交流电压输入时通过交流母线为控制电路供电，供电可靠性高但是由于采取了两种供电方法，方法成本较高。
以上方法虽然可以为功率单元控制板提供电能，但是不能在成本和可靠性之间实现平衡，供电方法或者成本低但是不能实现备用供电或者虽然实现备用供电但是成本较高。
发明内容：
本发明的目的在于克服上述现有技术的缺点，提供一种用于高压链式功率单元控制板的备用供电方法，是一种低成本的实现功率单元控制板的备用供电方法，通过较低的成本提高功率单元控制板的供电可靠性。
本发明的目的是通过以下技术方法来解决的：
本发明涉及一种高压链式功率单元控制板的备用供电方法，该方法利用相邻功率单元控制板的供电电源为本功率单元控制板提供备用供电。
(1)功率单元控制板输入电压设置为单一电压输入从而便于功率单元之间备用供电，而在功率单元控制板中通过电能变化将单一电压转化为+5V、±15V以及+24V从而满足功率单元控制板的供电需求。
(2)功率单元采用高压直流取能方法，利用功率单元直流母线通过并联在直流电容两端的直流取能电源获得功率单元控制板所需的电源输入。
(3)相邻功率单元的直流取能电源输出通过二极管并联在本功率单元功率单元控制板的电源输入端，从而为功率单元控制板提供备用供电。
(4)链式功率单元工作在复杂的电磁环境中存在较大的干扰，而直流取能电源输出电压较低(最高为+24V)并且通过长导线在相邻功率单元之间互相连接，为了抑制备用供电导线的干扰在连接路径中配置包括差模电感、共模电感、差模电容的滤波电路以滤除差模干扰以及共模干扰，而由于供电电压低并且功率小，差模电感、共模电感、差模电容成本非常低(不超过10元每只)。
本发明的有益效果在于：
(1)供电方法可靠性高在链式功率单元中除了首尾两个功率单元控制板为双电源供电，其余功率单元控制板为三电源供电，供电可靠性高。
(2)供电方法成本低在实现双电源供电甚至三电源供电的前提下，供电方法成本相比不考虑冗余的高压直流取能方法仅仅增加了差模电感、共模电感、差模电容以及连接导线，成本增加非常小。
附图说明：
图1为本发明所提出的供电方法原理图。
图2为本发明所提出的功率单元N供电接线图
图3为本发明所提出的滤波电路。
具体实施方式：
下面结合附图对本发明做进一步详细描述：
参见图1和图2，链式功率单元控制板备用供电方法中功率单元N供电如下所示：
(1)功率单元N直流母线并联的直流取能电源输出通过二极管连接到功率单元N控制板的输入；
(2)功率单元N+1直流母线并联的直流取能电源输出通过滤波电路以及二极管连接到功率单元N控制板的输入；
(3)功率单元N-1直流母线并联的直流取能电源输出通过滤波电路以及二极管连接到功率单元N控制板的输入；
(4)功率单元N控制板输入通过二极管接有三路供电电源，其中输出电压最高的供电电源为控制板提供电能，当由于直流母线电压过压(欠压)或者自取能电源故障导致电源不正常时，剩下两路供电电源中相对较高的一路电源为控制板提供电能，从而提高了控制板供电可靠性。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施方式仅限于此，对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单的推演或替换，都应当视为属于本发明由所提交的权利要求书确定专利保护范围。

Claims (4)

1.一种高压链式功率单元控制板的备用供电方法，其特征在于：所述备用供电方法利用相邻功率单元控制板的供电电源为本功率单元控制板提供备用供电。
2.如权利要求1所述的备用供电方法，其特征在于，按照如下步骤：
(1)功率单元控制板输入电压设置为单一电压输入从而便于功率单元之间备用供电，而在功率单元控制板中通过电能变化将单一电压转化为+5V、±15V以及+24V从而满足功率单元控制板的供电需求；
(2)功率单元采用高压直流取能方法，利用功率单元直流母线通过并联在直流电容两端的直流取能电源获得功率单元控制板所需的电源输入；
(3)相邻功率单元的直流取能电源输出通过二极管并联在本功率单元功率单元控制板的电源输入端，从而为功率单元控制板提供备用供电。
3.如权利要求2所述的备用供电方法，其特征在于，按照如下步骤：所述直流取能电源输出电压较低(最高为+24V)并且通过长导线在相邻功率单元之间互相连接，为了抑制备用供电导线的干扰在连接路径中配置包括差模电感、共模电感、差模电容的滤波电路以滤除差模干扰以及共模干扰。
4.如权利要求2所述的备用供电方法，其特征在于，按照如下步骤：
(1)功率单元N直流母线并联的直流取能电源输出通过二极管连接到功率单元N控制板的输入；
(2)功率单元N+1直流母线并联的直流取能电源输出通过滤波电路以及二极管连接到功率单元N控制板的输入；
(3)功率单元N-1直流母线并联的直流取能电源输出通过滤波电路以及二极管连接到功率单元N控制板的输入；
(4)功率单元N控制板输入通过二极管接有三路供电电源，其中输出电压最高的供电电源为控制板提供电能，当由于直流母线电压过压、欠压或者自取能电源故障导致电源不正常时，剩下两路供电电源中相对较高的一路电源为控制板提供电能。
CN201610034661.5A 2016-01-19 2016-01-19 一种用于高压链式功率单元控制板的备用供电方法 Pending CN106981973A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610034661.5A CN106981973A (zh) 2016-01-19 2016-01-19 一种用于高压链式功率单元控制板的备用供电方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610034661.5A CN106981973A (zh) 2016-01-19 2016-01-19 一种用于高压链式功率单元控制板的备用供电方法

Publications (1)

Publication Number Publication Date
CN106981973A true CN106981973A (zh) 2017-07-25

Family

ID=59340728

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610034661.5A Pending CN106981973A (zh) 2016-01-19 2016-01-19 一种用于高压链式功率单元控制板的备用供电方法

Country Status (1)

Country Link
CN (1) CN106981973A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019149104A1 (zh) * 2018-01-31 2019-08-08 南京南瑞继保电气有限公司 一种功率模块冗余取能电路及其控制方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040217653A1 (en) * 2003-04-29 2004-11-04 Neidorff Robert Alan Supply selection circuit with programmable hysteresis
CN101662154A (zh) * 2009-09-25 2010-03-03 许继集团有限公司 链式静止同步补偿器igbt阀链节控制板
CN102364849A (zh) * 2011-09-05 2012-02-29 江苏南自通华电气集团有限公司 链式无功发生器中功率单元的两级降压式控制电源
CN103384119A (zh) * 2013-06-24 2013-11-06 株洲变流技术国家工程研究中心有限公司 静止无功发生器单元模块的交流侧取能装置及方法
CN104993508A (zh) * 2015-06-26 2015-10-21 西安理工大学 一种h桥串联型statcom直流侧供电系统

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040217653A1 (en) * 2003-04-29 2004-11-04 Neidorff Robert Alan Supply selection circuit with programmable hysteresis
CN101662154A (zh) * 2009-09-25 2010-03-03 许继集团有限公司 链式静止同步补偿器igbt阀链节控制板
CN102364849A (zh) * 2011-09-05 2012-02-29 江苏南自通华电气集团有限公司 链式无功发生器中功率单元的两级降压式控制电源
CN103384119A (zh) * 2013-06-24 2013-11-06 株洲变流技术国家工程研究中心有限公司 静止无功发生器单元模块的交流侧取能装置及方法
CN104993508A (zh) * 2015-06-26 2015-10-21 西安理工大学 一种h桥串联型statcom直流侧供电系统

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
周志敏 等: "《开关电源功率因数校正电路设计与应用》", 30 November 2004 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019149104A1 (zh) * 2018-01-31 2019-08-08 南京南瑞继保电气有限公司 一种功率模块冗余取能电路及其控制方法
US11264891B2 (en) 2018-01-31 2022-03-01 Nr Electric Co., Ltd Redundant energy acquisition circuit of power module, and control method thereof

Similar Documents

Publication Publication Date Title
CN102368631B (zh) 一种高效可靠的数据中心电子设备供电架构
CN203574421U (zh) 一种共直流母线充放电系统
CN103312178B (zh) 一种双向dc/dc变换器及应用其的电池检测设备
CN203859583U (zh) 一种多路并联冗余的变电站直流电源系统
CN103683983B (zh) 一种混合能馈式直流牵引供电装置及控制方法
CN104467509B (zh) 一种双向储能变流器
CN203504285U (zh) Ups综合电源
CN112103938B (zh) 基于hvdc设备的供电架构、方法及系统
CN103944420B (zh) 电源供应系统及其控制方法
CN208508609U (zh) 不间断供电的电源控制电路
CN103730948A (zh) 一种服务器机柜连续供电方法
CN107579593B (zh) 一种高压直流断路器的供能系统
CN110535139B (zh) 一种宽幅调压装置
CN106981973A (zh) 一种用于高压链式功率单元控制板的备用供电方法
US20230253888A9 (en) Power supply unit and loop power supply system
CN201887532U (zh) 机车充电装置
CN201616703U (zh) 高压变频器控制电源回路不间断供电装置
CN105119363B (zh) 一种用于智能电网的hvdc不间断供电系统
CN210724620U (zh) 一种大功率页岩油气开采用电控房
CN203381625U (zh) 一种列车电源变换器
CN206293893U (zh) 单元接线机组的智能互联系统
CN114825318A (zh) 一种交直流混合的不间断供电系统
CN201569974U (zh) 整合型计算机供电电源
CN206470689U (zh) 服务器的高压直流电源及高压直流系统
CN110783827A (zh) 组合式供配电系统

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20170725

RJ01 Rejection of invention patent application after publication