CN104426383A - 一种自耦变压器调压电路 - Google Patents

一种自耦变压器调压电路 Download PDF

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Publication number
CN104426383A
CN104426383A CN201310397866.6A CN201310397866A CN104426383A CN 104426383 A CN104426383 A CN 104426383A CN 201310397866 A CN201310397866 A CN 201310397866A CN 104426383 A CN104426383 A CN 104426383A
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CN
China
Prior art keywords
autotransformer
voltage
power consumption
consumption equipment
centre tap
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Pending
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CN201310397866.6A
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English (en)
Inventor
袁碧波
程坤
程世国
王怡华
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DAYU ELECTRIC TECHNOLOGY Co Ltd
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DAYU ELECTRIC TECHNOLOGY Co Ltd
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Priority to CN201310397866.6A priority Critical patent/CN104426383A/zh
Publication of CN104426383A publication Critical patent/CN104426383A/zh
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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
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/22—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M5/275—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc 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
    • H02M5/293—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc 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
    • 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
    • H02M1/12—Arrangements for reducing harmonics from ac input or output
    • H02M1/126—Arrangements for reducing harmonics from ac input or output using passive filters
    • 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
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/22—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M5/25—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M5/257—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M5/2573—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with control circuit

Abstract

本发明涉及一种自耦变压器调压电路，包括自耦变压器，所述自耦变压器的首端连接有输入电源，自耦变压器上设有中间抽头一和中间抽头二，所述中间抽头一连接有用电设备，所述中间抽头二与所述自耦变压器的尾端之间并联有用于连续调节所述用电设备输入电源电压的晶体管组件，晶体管组件与所述用电设备相连接。本发明的有益效果为：晶体管组件并联在白耦变压器的尾端和中间抽头上，只承受部分电网电压，可以用低压晶体管组件控制高压设备，可靠性高，控制简单，通过自耦变压器以后谐波小，在一定的调压范围内能实现无谐波输出。

Description

一种自耦变压器调压电路
技术领域
本发明涉及控制电路技术领域，尤其涉及一种自耦变压器调压电路。
背景技术
目前，交流电压调节有变压器、调压器、电力电子变换器等方式。采用变压器方式调节用电设备的输入电压，只能从一种电压变换到另一种电压，变压器的输入电压随输入电网电压和负载的影响很大，电压不稳定，不能实现无级连续调节，不适用于需要连续调整输入电压的场合。采用调压器方式调节用电设备的输入电压，是一种通过机械手段调节，不能直接通过电气控制，使用不方便，机械手段调节的响应速度慢，动态性能差。电力电子变换器是能实现高性能电压调节，但成本高，控制复杂，可靠性低。
发明内容
本发明的目的是提供一种自耦变压器调压电路，以克服现有技术存在的上述不足。
本发明的目的是通过以下技术方案来实现：
一种自耦变压器调压电路，包括白耦变压器，所述自耦变压器的首端连接有输入电源，白耦变压器上设有中间抽头一和中间抽头二，所述中间抽头一连接有用电设备，所述中间抽头二与所述白耦变压器的尾端之间并联有用于连续调节所述用电设备输入电源电压的晶体管组件，晶体管组件与所述用电设备相连接。
进一步的，所述中间抽头一与用电设备之间串联有用于监测用电设备的输入电压和电流的采样电路，晶体管组件通过所述采样电路与用电设备相连接。
进一步的，所述晶体管组件与采样电路之间串联有触发驱动系统和控制器。
优选的，所述晶体管组件为自关断的晶闸管或可关断的IGBT。
本发明的有益效果为：晶体管组件并联在自耦变压器的尾端和中间抽头上，只承受部分电网电压，可以用低压晶体管组件控制高压设备，可靠性高，控制简单，通过自耦变压器以后谐波小，在一定的调压范围内能实现无谐波输出。
附图说明
下面根据附图对本发明作进一步详细说明。
图1是本发明实施例所述的自耦变压器调压电路的电路图。
图中：
1、自耦变压器；2、中间抽头一；3、中间抽头二；4、用电设备；5、晶体管组件；6、采样电路；7、触发驱动系统；8、控制器。
具体实施方式
如图1所示，本实施例所述的自耦变压器调压电路，包括自耦变压器1，所述自耦变压器1的首端连接有输入电源，自耦变压器1上设有中间抽头一2和中间抽头二3，所述中间抽头一2连接有用电设备4，所述中间抽头二3与所述自耦变压器1的尾端之间并联有用于连续调节所述用电设备输入电源电压的晶体管组件5，晶体管组件5与所述用电设备4相连接；所述中间抽头一2与用电设备4之间串联有用于监测用电设备4的输入电压和电流的采样电路6；所述晶体管组件5通过所述采样电路6与用电设备4相连接；所述晶体管组件5与采样电路6之间串联有触发驱动系统7和控制器8；所述晶体管组件5为自关断的晶闸管或可关断的IGBT。
具体使用时，采样电路6监测用电设备4的输入电压和电流，控制器8经过运算以后输出控制信号，经过触发驱动系统7控制晶体管组件5的开关频率和占空比，使中间抽头一2处的输出电压发生变化，将输入电网电压变换成用电设备所需要的电压。
本发明避免了传统变压器、调压器等调节性能差，控制困难的缺陷，能达到电力电子方式的调压性能，但比电力电子方式控制简单、成本低、可靠性高。例如：现有技术采用晶闸管移相调压方式，晶闸管是直接串联在主电路中，要全部承受电网电压，在高电压场合还要采用晶闸管串联技术，可靠性差，控制复杂，谐波大，采用本发明的技术方案，晶闸管并联在自耦变压器1的尾端和中间抽头二3上，只承受部分电网电压，可以用低压晶闸管控制高压设备，可靠性高，控制简单，通过自耦变压器1以后谐波小，在一定的调压范围内能实现无谐波输出。
本发明不局限于上述最佳实施方式，任何人在本发明的启示下都可得出其他各种形式的产品，但不论在其形状或结构上作任何变化，凡是具有与本申请相同或相近似的技术方案，均落在本发明的保护范围之内。

Claims (5)

1.一种自耦变压器调压电路，包括自耦变压器(1)，其特征在于：所述自耦变压器(1)的首端连接有输入电源，白耦变压器(1)上设有中间抽头一(2)和中间抽头二(3)，所述中间抽头一(2)连接有用电设备(4)，所述中间抽头二(3)与所述自耦变压器(1)的尾端之间并联有用于连续调节所述用电设备输入电源电压的晶体管组件(5)，晶体管组件(5)与用电设备(4)相连接。
2.根据权利要求1所述的自耦变压器调压电路，其特征在于：所述中间抽头一(2)与用电设备(4)之间串联有用于监测用电设备(4)的输入电压和电流的采样电路(6)。
3.根据权利要求2所述的自耦变压器调压电路，其特征在于：所述晶体管组件(5)通过所述采样电路(6)与用电设备(4)相连接。
4.根据权利要求3所述的自耦变压器调压电路，其特征在于：所述晶体管组件(5)与采样电路(6)之间串联有触发驱动系统(7)和控制器(8)。
5.根据权利要求4所述的自耦变压器调压电路，其特征在于：所述晶体管组件(5)为白关断的晶闸管或可关断的IGBT。
CN201310397866.6A 2013-08-29 2013-08-29 一种自耦变压器调压电路 Pending CN104426383A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106526258A (zh) * 2015-09-15 2017-03-22 国网辽宁省电力有限公司沈阳供电公司 轻型三相电压发生仪
CN107710100A (zh) * 2015-06-22 2018-02-16 阿迪尔森·诺盖拉·德·阿劳约 不具有过渡电抗器的电压调节器稳定器以及分接头变换器极性反转开关

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CN101651439A (zh) * 2009-05-05 2010-02-17 哈尔滨帕特尔科技有限公司 开关自耦变压器式中高压电动机软起动装置
CN201742303U (zh) * 2010-08-11 2011-02-09 北京清能华创科技有限公司 交流调压装置
CN102447398A (zh) * 2010-10-11 2012-05-09 大禹电气科技股份有限公司 一种自耦变压器串联调压电路
CN202261123U (zh) * 2011-07-14 2012-05-30 大禹电气科技股份有限公司 串接式调压软起动装置

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
CN101651439A (zh) * 2009-05-05 2010-02-17 哈尔滨帕特尔科技有限公司 开关自耦变压器式中高压电动机软起动装置
CN201742303U (zh) * 2010-08-11 2011-02-09 北京清能华创科技有限公司 交流调压装置
CN102447398A (zh) * 2010-10-11 2012-05-09 大禹电气科技股份有限公司 一种自耦变压器串联调压电路
CN202261123U (zh) * 2011-07-14 2012-05-30 大禹电气科技股份有限公司 串接式调压软起动装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107710100A (zh) * 2015-06-22 2018-02-16 阿迪尔森·诺盖拉·德·阿劳约 不具有过渡电抗器的电压调节器稳定器以及分接头变换器极性反转开关
CN106526258A (zh) * 2015-09-15 2017-03-22 国网辽宁省电力有限公司沈阳供电公司 轻型三相电压发生仪
CN106526258B (zh) * 2015-09-15 2023-06-09 国网辽宁省电力有限公司沈阳供电公司 轻型三相电压发生仪

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Application publication date: 20150318