CN108631608A - 一种过分相电子开关取能电路 - Google Patents

一种过分相电子开关取能电路 Download PDF

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Publication number
CN108631608A
CN108631608A CN201810097241.0A CN201810097241A CN108631608A CN 108631608 A CN108631608 A CN 108631608A CN 201810097241 A CN201810097241 A CN 201810097241A CN 108631608 A CN108631608 A CN 108631608A
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unit
split
electronic switch
circuit
phase electronic
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CN108631608B (zh
Inventor
邱文俊
胡前
吕顺凯
何多昌
胡家喜
赵道德
刘斐
何健明
钟强
杨鸣远
胡君楷
高原
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Zhuzhou CRRC Times Electric Co Ltd
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Zhuzhou CRRC Times Electric Co Ltd
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Priority to PCT/CN2018/114355 priority patent/WO2019148922A1/zh
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M5/00Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
    • H02M5/42Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
    • H02M5/44Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
    • H02M5/453Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M5/458Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M1/00Details of apparatus for conversion
    • H02M1/08Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M5/00Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
    • H02M5/42Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
    • H02M5/44Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
    • H02M5/453Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M5/458Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M5/4585Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only having a rectifier with controlled elements

Abstract

本发明公开了一种过分相电子开关取能电路,包括依次相连的供电单元、调节单元和取能单元,所述供电单元包括依次相连的电源模块和不间断电源模块,所述调节单元用于对供电单元输出的电源进行调节以及高低压电气隔离并输出至取能单元,所述取能单元用于对电流能量进行变换以供给电子开关。本发明的过分相电子开关取能电路具有结构简单、可靠性高等优点。

Description

一种过分相电子开关取能电路
技术领域
本发明主要涉及过分相技术领域,特指一种过分相电子开关取能电路。
背景技术
现有过分相装置中的电子开关大多从接触网中取电,经接触网中取电后再经过相应变换再供给电子开关。此种取能方式受接触网电源影响,可靠性较低。
发明内容
本发明要解决的技术问题就在于:针对现有技术存在的技术问题,本发明提供一种结构简单、可靠性高的过分相电子开关取能电路。
为解决上述技术问题,本发明提出的技术方案为:
一种过分相电子开关取能电路,包括依次相连的供电单元、调节单元和取能单元,所述供电单元包括依次相连的电源模块和不间断电源模块,所述调节单元用于对供电单元输出的电源进行调节以及高低压电气隔离后并输出至取能单元,所述取能单元用于对电流能量进行变换以供给电子开关。
作为上述技术方案的进一步改进:
所述电源模块与所述不间断电源模块之间设置有开关组件。
所述开关组件为断路器。
所述调节单元包括隔离变压器。
所述隔离变压器的输入端串联有用于调节隔离变压器原边回路电流大小的电抗器。
所述不间断电源模块的输出端并联有电容器组,用于对调节单元中的感性无功进行补偿。
所述取能单元包括一个以上的电流互感器,各所述电流互感器与各电子开关的触发板一一对应连接。
所述不间断电源模块为AC-DC-AC变换电路。
与现有技术相比,本发明的优点在于:
本发明的过分相电子开关取能电路,通过电源模块(如AC220V或380V等)经不间断电源模块(如UPS装置)提供可靠的电源,保证过分相电子开关工作的可靠性。
附图说明
图1为本发明的方框结构图。
图2为本发明中不间断电源模块的电路原理图。
图3为本发明中调节单元的电路原理图。
图4为本发明中取能单元的电路原理图。
图中标号表示:1、供电单元;2、调节单元;3、取能单元。
具体实施方式
以下结合说明书附图和具体实施例对本发明作进一步描述。
如图1所示,本实施例的过分相电子开关取能电路,包括依次相连的供电单元1、调节单元2和取能单元3,供电单元1包括依次相连的电源模块和不间断电源模块,调节单元2用于对供电单元1输出的电源电流进行调节(电压变换)以及高低压电气隔离后,再输出至取能单元3,取能单元3用于对电流能量进行变换以供给电子开关(如晶闸管触发板)。本发明的过分相电子开关取能电路,通过电源模块(如AC220V或380V等)经不间断电源模块(如UPS装置)提供可靠的电源,保证过分相电子开关工作的可靠性。
如图1和图3所示,调节单元2包括隔离变压器TC,用于进行电压变换及高低压电气隔离,其中隔离变压器的输入端串联有用于调节隔离变压器原边回路电流大小的电抗器L,电抗器L可采用可变电抗器。通过隔离变压器与电抗器进行电流源的变换以及高低压之间的电气隔离,以达到晶闸管触发板供电能量的要求。在其它实施例中,调节单元2也可以采用恒流电源。
如图1和图2所示,本实施例中,电源模块(如AC电源)与不间断电源模块UPS之间设置有开关组件(如断路器QF),用于电路投入或退出。另外,为了对调节单元2中电抗器L的感性无功进行补偿,不间断电源模块UPS的输出端并联有电容器组(如电容C)。其中不间断电源模块采用AC-DC-AC变换电路(如为相互串联的AC/DC电路和DC/AC电路)。
如图1和图4所示,本实施例中,取能单元3包括两个电流互感器(TA1和TA2),两个电流互感器与两相的晶闸管触发板一一对应连接,用于进行电源能量的变换,从而为高电位的晶闸管触发板供电。其中电流互感器的数量根据晶闸管触发板的数量保持一致。
工作原理:QF闭合后,经UPS对后续电路提供可靠的持续的交流电源,通过对电抗器L的电感量进行调节,调节隔离变压器TC原边回路中的电流大小,电流经隔离变压器TC变换传递至副边,再经电流互感器TA1和TA2变换为高电位晶闸管控制电路所需的能量。其中采用高压电缆DL实现高、低压电路中的电气隔离;另外隔离变压器TC也可起到高、低压电位之间的隔离作用,实现双重保护。
以上仅是本发明的优选实施方式,本发明的保护范围并不仅局限于上述实施例,凡属于本发明思路下的技术方案均属于本发明的保护范围。应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理前提下的若干改进和润饰,应视为本发明的保护范围。

Claims (8)

1.一种过分相电子开关取能电路,其特征在于,包括依次相连的供电单元(1)、调节单元(2)和取能单元(3),所述供电单元(1)包括依次相连的电源模块和不间断电源模块,所述调节单元(2)用于对供电单元(1)输出的电源进行调节以及高低压电气隔离后并输出至取能单元(3),所述取能单元(3)用于对电流能量进行变换以供给电子开关。
2.根据权利要求1所述的过分相电子开关取能电路,其特征在于,所述电源模块与所述不间断电源模块之间设置有开关组件。
3.根据权利要求2所述的过分相电子开关取能电路,其特征在于,所述开关组件为断路器。
4.根据权利要求1或2或3所述的过分相电子开关取能电路,其特征在于,所述调节单元(2)包括隔离变压器。
5.根据权利要求4所述的过分相电子开关取能电路,其特征在于,所述隔离变压器的输入端串联有用于调节隔离变压器原边回路电流大小的电抗器。
6.根据权利要求5所述的过分相电子开关取能电路,其特征在于,所述不间断电源模块的输出端并联有电容器组,用于对调节单元(2)中的感性无功进行补偿。
7.根据权利要求1或2或3所述的过分相电子开关取能电路,其特征在于,所述取能单元(3)包括一个以上的电流互感器,各所述电流互感器与各电子开关的触发板一一对应连接。
8.根据权利要求1或2或3所述的过分相电子开关取能电路,其特征在于,所述不间断电源模块为AC-DC-AC变换电路。
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