CN109687424A - 一种可变频的供电设备 - Google Patents

一种可变频的供电设备 Download PDF

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Publication number
CN109687424A
CN109687424A CN201710974727.3A CN201710974727A CN109687424A CN 109687424 A CN109687424 A CN 109687424A CN 201710974727 A CN201710974727 A CN 201710974727A CN 109687424 A CN109687424 A CN 109687424A
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CN
China
Prior art keywords
pwm
output end
input terminal
controlled rectifier
frequency
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Pending
Application number
CN201710974727.3A
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English (en)
Inventor
高显扬
蒋文俊
司剑
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.)
Jiangsu Yang Hang Photoelectric Technology Co Ltd
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Jiangsu Yang Hang Photoelectric Technology Co Ltd
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Application filed by Jiangsu Yang Hang Photoelectric Technology Co Ltd filed Critical Jiangsu Yang Hang Photoelectric Technology Co Ltd
Priority to CN201710974727.3A priority Critical patent/CN109687424A/zh
Publication of CN109687424A publication Critical patent/CN109687424A/zh
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • H02M5/40—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 with intermediate conversion into dc
    • H02M5/42—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 with intermediate conversion into dc by static converters
    • H02M5/44—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 with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
    • H02M5/453—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 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
    • H02M5/458—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 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
    • 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
    • H02M5/40—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 with intermediate conversion into dc
    • H02M5/42—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 with intermediate conversion into dc by static converters
    • H02M5/44—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 with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
    • H02M5/453—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 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
    • H02M5/458—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 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
    • H02M5/4585—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 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
    • 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
    • H02M1/0012—Control circuits using digital or numerical techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • Rectifiers (AREA)
  • Ac-Ac Conversion (AREA)

Abstract

本发明涉及一种交流电供电设备，具体涉及到一种可变频的供电设备。本发明公开一种可变频的供电设备，它包括交流电源，其特征是：还包括：PWM可控整流器、PWM逆变器；PWM可控整流器包括输入端和输出端，PWM逆变器包括输入端和输出端，交流电源连接PWM可控整流器的输入端，PWM可控整流器的输出端通过直流电线连接PWM逆变器的输入端，PWM逆变器的输出端连接交流电线。本发明的有益效果是：本发明输出的交流电频率可以变，本发明可以调节输出的交流电的频率；能满足工业生产用电及生活用电的需要。

Description

一种可变频的供电设备
技术领域
本发明涉及一种交流电供电设备，具体涉及到一种可变频的供电设备。
背景技术
电力系统上常用到交流电供电设备，目前现有的交流电供电设备存在缺点：目前现有的交流电供电设备输出的交流电频率固定不变，所以就不能满足工业生产用电及生活用电的需要。
发明内容
本发明的目的是克服以上不足，提供一种可变频的供电设备，它输出的交流电频率可以变。
一种可变频的供电设备，包括交流电源，其特征是：还包括：PWM可控整流器、PWM逆变器；PWM可控整流器包括输入端和输出端，PWM逆变器包括输入端和输出端，交流电源连接PWM可控整流器的输入端，PWM可控整流器的输出端通过直流电线连接PWM逆变器的输入端，PWM逆变器的输出端连接交流电线。
本发明的有益效果是：由于：还包括：PWM可控整流器、PWM逆变器；PWM可控整流器包括输入端和输出端，PWM逆变器包括输入端和输出端，交流电源连接PWM可控整流器的输入端，PWM可控整流器的输出端通过直流电线连接PWM逆变器的输入端，PWM逆变器的输出端连接交流电线；从而：交流电源输出交流电，交流电进入整流电路，整流电路输出的直流电，直流电进入逆变电路，在逆变部分实现输出的交流电的频率的变化；本发明可以调节输出的交流电的频率；所以能满足工业生产用电及生活用电的需要。
综上所述，本发明输出的交流电频率可以变，本发明可以调节输出的交流电的频率；能满足工业生产用电及生活用电的需要。
附图说明
图1是本发明的结构示意图。
具体实施方式
下面结合附图进行详细说明。
一种可变频的供电设备，包括交流电源，其特征是：还包括：PWM可控整流器、PWM逆变器；PWM可控整流器包括输入端和输出端，PWM逆变器包括输入端和输出端，交流电源连接PWM可控整流器的输入端，PWM可控整流器的输出端通过直流电线连接PWM逆变器的输入端，PWM逆变器的输出端连接交流电线。
本发明的有益效果是：由于：还包括：PWM可控整流器、PWM逆变器；PWM可控整流器包括输入端和输出端，PWM逆变器包括输入端和输出端，交流电源连接PWM可控整流器的输入端，PWM可控整流器的输出端通过直流电线连接PWM逆变器的输入端，PWM逆变器的输出端连接交流电线；从而：交流电源输出交流电，交流电进入整流电路，整流电路输出的直流电，直流电进入逆变电路，在逆变部分实现输出的交流电的频率的变化；本发明可以调节输出的交流电的频率；所以能满足工业生产用电及生活用电的需要。
综上所述，本发明输出的交流电频率可以变，本发明可以调节输出的交流电的频率；能满足工业生产用电及生活用电的需要。
采用PWM可控整流、PWM逆变器调压调频的控制方式。由于计算机技术的不断发展，全数字系统使PWM控制非常容易，不仅在逆变环节采用PWM控制，其整流部分也采用PWM可控整流。因此，可以控制整个系统对电网的谐波污染非常低，同时具有较高的功率因数。不仅如此，通过PWM控制还可以使系统进行再生制动。
采用交-直-交电压型结构实现恒压变频控制，输入端接交流变压器起隔离变压作用，变压后经三相桥式不可控电路整流，可以高入端的功率因数，且也不需要控制驱动电路，结构简单。中间电路一般采用电容进行滤波，以高整流效果。逆变部分采用三相桥式电路，在中小功率的变频电路中采用 IGBT作为主要电力电子开关，逆变部分是主电路的核心和关键，为了保护六个电力电子开关 IGBT，在每个IGBT两端并联 RCD 阻容吸收电路，考虑到变频电源负载的多样性，因此在每个 IGBT两端并联一个电力二极管续流。产生1Hz频率输出，使输出频率1Hz-100Hz范围内可调。

Claims (1)

1.一种可变频的供电设备，包括交流电源，其特征是：还包括：PWM可控整流器、PWM逆变器；PWM可控整流器包括输入端和输出端，PWM逆变器包括输入端和输出端，交流电源连接PWM可控整流器的输入端，PWM可控整流器的输出端通过直流电线连接PWM逆变器的输入端，PWM逆变器的输出端连接交流电线。
CN201710974727.3A 2017-10-19 2017-10-19 一种可变频的供电设备 Pending CN109687424A (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1233656A1 (en) * 1997-06-16 2002-08-21 Lightech Electronics Industries Ltd. Power supply for hybrid lighting system
CN101499729A (zh) * 2008-11-03 2009-08-05 郑州金海威科技实业有限公司 用于金刚石制品热压烧结的三相变频电源装置
CN201900045U (zh) * 2010-12-17 2011-07-20 张寅啸 电除尘器三相中频直流高压电源
CN103001252A (zh) * 2012-11-20 2013-03-27 山西潞安环保能源开发股份有限公司王庄煤矿 一种具有能量回馈的矿井主通风机高压变频装置
CN105591550A (zh) * 2016-01-18 2016-05-18 南通海星电子股份有限公司 电子铝箔腐蚀用大功率变频电源

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1233656A1 (en) * 1997-06-16 2002-08-21 Lightech Electronics Industries Ltd. Power supply for hybrid lighting system
CN101499729A (zh) * 2008-11-03 2009-08-05 郑州金海威科技实业有限公司 用于金刚石制品热压烧结的三相变频电源装置
CN201900045U (zh) * 2010-12-17 2011-07-20 张寅啸 电除尘器三相中频直流高压电源
CN103001252A (zh) * 2012-11-20 2013-03-27 山西潞安环保能源开发股份有限公司王庄煤矿 一种具有能量回馈的矿井主通风机高压变频装置
CN105591550A (zh) * 2016-01-18 2016-05-18 南通海星电子股份有限公司 电子铝箔腐蚀用大功率变频电源

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