CN110677054A - 双开关高变倒调工变补偿的交流稳压电源 - Google Patents
双开关高变倒调工变补偿的交流稳压电源 Download PDFInfo
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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
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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
- H02M5/25—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
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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
- 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
- H02M5/2932—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 with automatic control of output voltage, current or power
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Abstract
本发明属于补偿式交流稳压电源，它有单相和三相两种，三相由3个单相星形连接组成。单相双开关高变倒调工变补偿的交流稳压电源，它由高频倒调变压器T1、工频补偿变压器T2、2个双向开关S1和S2、1个电感L、2个电容C1和C2及其控制电路组成，S1由2个二极管和2个三极管或4个二极管和1个三极管组成，S2由2个单向晶闸管V3、V4反并组成，本发明与同一发明人发明的龚氏半桥斩波调压工变补偿式交流稳压电源相比，用高频变压器替代了带中心抽头的工频自耦变压器，具有体积小重重轻的优点。
Description
[一]技术领域
本发明涉及交流斩波倒相调压和用工频变补偿变压器补偿电压补偿式交流稳压电源。
[二]背景技术
交流斩控调压具有连续无级无触点调压精度高性价比高等优点，是目前补偿式交流稳压电源的发展方向，同一发明人的多种四开关斩控调压工变补偿式交流稳压电源，存在着双向开关多的缺点，同一发明人发明的双开关半桥斩控调压的工变补偿式交流稳压电源，虽减小了两个双向开关但多了一个带中心抽头的自耦倒相变压器，存在着体积大重量重的缺点。
[三]发明内容
本发明的目的是不用工频自耦变压器倒相。
为了实现上述目的本发明的单相双开关高变倒调工变补偿的交流稳压电源，它由高频倒调变压器T1、工频补偿变压器T2、2个双向开关S1和S2、1个电感L、2个电容C1和C2 及其控制电路组成，S1由2个二极管和2个三极管或4个二极管和1个三极管组成，有2个交流输入端(A1、N)，2个稳压输出端(A2、N)，其特征在于：S2由2个单向晶闸管反并组成，第一输交流输入端(A1)与T2次级绕组W2一端、T2初级绕组W1一端、电容C1一端、双向开关S1一端连接，双向开关S1另一端(1)与双向开关S2一端、T1初级绕组W1一端连接， T1次级绕组W2一端(2)与电感L一端连接，电感L另一端(3)与电容C2一端、T2初级绕组W1另一端连接，第一稳压输出端(A2)与T2次级绕组W2另一端连接，第二交流输入端 (N)与第二稳压输出端、双向开关S2另一端，电容C1另一端、电容C2另一端、T1初级绕组 W1另一端、T1次级绕组W2另一端连接。
由上述3个单相双开关高变倒调工变补偿的交流稳压电源，其特征在于：三相双开关高变倒调工变补偿的交流稳压电源，由3个单相双开关高变倒调工变补偿的交流稳压电源星形连接组成，有3个交流输入端(A1、B1、C1)，3个稳压输出端(A2、B2、C2)，1个交流输入和稳压输出的公共端(N)。
四]附图说明
图1是单相双开关高变倒调工变补偿的交流稳压电源。图2是三相双开关高变倒调工变补偿的交流稳压电源。其中：S1是双向全控开关，S2是双向半控开关、T1是高频变压器、T2是工频补偿变压器，W1和W2初级绕组和次级绕组，V1、V2是三极管，D1、D2是二极管，C1、C2是电容，L是电感。
[五]具体实施方式
为了进一步了解本发明的技术方案，下面通过具体实施例来对本发明进行详细阐述。
由附图1可知：附图1的单相双开关高变调压工变补偿的交流稳压电源，它由高频倒调变压器T1、工频补偿变压器T2、2个双向开关S1和S2、1个电感L、2个电容C1和C2及其控制电路组成，S1由2个二极管D1、D2和2个三极管V1、V2组成。S2由2个单向晶闸管V3、V4反并组成，并在电源正负半个周期内在分别在它们的触发极上有直流信号。因此，在斩波调压过程中只要调节双向开关S1的通断比就能倒相和调节电压。其工作原理如下：
1)当输入两端电压在稳压要求输出的最低电压和最高电压之间时，使S1主控，S2续流的斩波输出电压U1n，通过高频升压变压器T1的升压斩波电压U2n，再经LC低通滤波在补偿变压器T2的初级绕组W1的3端获得的电压等于交该输入A1端的电压，此时补偿变压器T2初级绕组W1两端电压为零，次级级绕组W2两端没有补偿电压，稳压输出两端的电压等于输入两端的交流电压。
2)当输入两端电压高于稳压要求输出的高低电压时，调小S1的导通脉冲宽度，斩波输出电压U1n、高频升压变压器T1的升压斩波电压U2n和再经LC低通滤波在补偿变压器T2的初级绕组W1的3端获得的电压都降低，此时补偿高压器T2初级绕组W1两端电压3端为负，A1端为正，次级绕组W2两端感应电压A1端为正，A2端为负，对稳压输出两端电压实现反向电压补偿，使稳压输出两端电压稳定在稳压电源要求的电压范围之内。当双向开关S1 全关断时，由干T1是高频变压器，L是高频电感，因此，补偿变压器T2初级绕组W1两端的最大补偿电压接近负220V。
3)当输入两端电压低于稳压要求输出的最低电压时，调大S1的导通脉冲宽度，斩波输出电压U1n、高频升压变压器T1的升压斩波电压U2n和再经LC低通滤波在补偿变压器T2的初级绕组W1的3端获得的电压都升高，此时补偿高压器T2初级绕组W1两端电压，3端为正，A1端为负，次级绕组W2两端感应电压，A1端为负，A2端为正，对稳压输出两端电压实现正向电压补偿调节，使稳压输出两端电压稳定在稳压电源要求的电压范围之内。为达到T2初级绕组W1两端的最大补偿电压是正220V。只要适当选择T1初级绕组W1和次级绕组W2的升压比和S1斩控通断比即可达到。
由上可知只要自动调节双向开关S1中的三极管V1和V2控制信号，就能实现交流稳压。
附图2所示的三相双开关高变倒调工变补偿的交流稳压电源，是将附图1所示的3个单相双开关高变倒调工变补偿的交流稳压电源星形连接组成，它有3个三极交流输入端(A1、 B1、C1)、3个三相交流稳压输出端(A2、B2、C2)和1个输入输出公共端(N)。
本发明中的双向开关S1还可用4个二极管和1个三极管组成。本发明与同一发明人发明的龚氏半桥斩波调压工变补偿式交流稳压电源相比，用高频变压器替代了带中心抽头的工频自耦变压器，具有体积小重重轻的优点。
Claims (2)
1.单相双开关高变倒调工变补偿的交流稳压电源，它由高频倒调变压器T1、工频补偿变压器T2、2个双向开关S1和S2、1个电感L、2个电容C1和C2及其控制电路组成，S1由2个二极管和2个三极管或4个二极管和1个三极管组成，有2个交流输入端(A1、N)，2个稳压输出端(A2、N)，其特征在于：S2由2个单向晶闸管V3、V4反并组成，第一输交流输入端(A1)与T2次级绕组W2一端、T2初级绕组W1一端、电容C1一端、双向开关S1一端连接，双向开关S1另一端(1)与双向开关S2一端、T1初级绕组W1一端连接，T1次级绕组W2一端(2)与电感L一端连接，电感L另一端(3)与电容C2一端、T2初级绕组W1另一端连接，第一稳压输出端(A2)与T2次级绕组W2另一端连接，第二交流输入端(N)与第二稳压输出端、双向开关S2另一端，电容C1另一端、电容C2另一端、T1初级绕组W1另一端、T1次级绕组W2另一端连接。
2.三相双开关高变倒调工变补偿的交流稳压电源，包括权利要求1所述所的3个单相双开关高变倒调工变补偿的交流稳压电源，其特征在于：三相双开关高变倒调工变补偿的交流稳压电源，由3个单相双开关高变倒调工变补偿的交流稳压电源星形连接组成，有3个交流输入端(A1、B1、C1)，3个稳压输出端(A2、B2、C2)，1个交流输入和稳压输出的公共端(N)。
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Application publication date: 20200110 |