CN111384863A - Double-switch alternating current chopped wave bidirectional voltage regulating circuit and application thereof - Google Patents

Double-switch alternating current chopped wave bidirectional voltage regulating circuit and application thereof Download PDF

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Publication number
CN111384863A
CN111384863A CN202010277010.5A CN202010277010A CN111384863A CN 111384863 A CN111384863 A CN 111384863A CN 202010277010 A CN202010277010 A CN 202010277010A CN 111384863 A CN111384863 A CN 111384863A
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China
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voltage
switch
regulating circuit
alternating current
voltage regulating
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CN202010277010.5A
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Chinese (zh)
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龚秋声
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Individual
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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
    • H02M5/10—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 transformers
    • H02M5/12—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 transformers for conversion of voltage or current amplitude 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
    • H02M5/25—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
    • 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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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Ac-Ac Conversion (AREA)

Abstract

The invention relates to a double-switch alternating current chopping bidirectional voltage regulating circuit which comprises 2 bidirectional switches S1 and S2, a high-frequency boosting autotransformer T, an inductor L, a capacitor C and a control circuit thereof. The invention has 1 AC input and voltage regulation output common end (1), 1 AC input end (2), 1 voltage regulation output end (3), S1 is made up of 2 diodes and 2 triodes or 4 diodes and 1 triode, compared with Gong 'S half-bridge bidirectional voltage regulation circuit invented by the same inventor, the regulation range is increased by 2 times, and the invention also uses the step-up high-frequency autotransformer to replace the power frequency phase inversion autotransformer in the Gong' S half-bridge bidirectional voltage regulation circuit, therefore, the invention has the advantages of excellent performance, low cost, light weight, small volume, etc., and can be widely used for the compensation type AC voltage-stabilized power supply of AC chopping voltage regulation.

Description

Double-switch alternating current chopped wave bidirectional voltage regulating circuit and application thereof
[ a ] the technical field
The invention relates to an alternating current chopping bidirectional voltage regulating circuit, in particular to an alternating current chopping bidirectional voltage regulating circuit with a boosting high-frequency autotransformer and a compensation type alternating current stabilized voltage supply designed by the same.
[ II ] background Art
The AC chopper bidirectional voltage regulating circuit is the most important key technical theory of modern continuous, stepless, contactless and high-performance compensation type AC voltage stabilizing power supply and UPS power supply. The two-switch and four-switch bidirectional regulation principle is invented by the same inventor in the Gong's half-bridge and full-bridge bidirectional regulation principles published in the 1 th period < power supply declaration > of 2018, the former two-switch Gong's half-bridge bidirectional regulation circuit needs two serially connected alternating current power supplies to realize output bidirectional voltage regulation, and the regulation range is only half of the input voltage.
[ third ] summary of the invention
The invention aims to provide a double-switch bidirectional voltage regulating circuit with an output bidirectional voltage regulating range 2 times larger than that of a Gong's half-bridge bidirectional voltage regulating circuit, and the double-switch bidirectional voltage regulating circuit is called as a Gong's double-switch alternating current voltage regulating circuit for distinguishing the Gong's half-bridge bidirectional voltage regulating circuit from the Gong's half-bridge bidirectional voltage regulating circuit.
In order to achieve the purpose, the double-switch alternating current chopping bidirectional voltage regulating circuit comprises 2 bidirectional switches S1 and S2, a high-frequency boosting autotransformer T, an inductor L, a capacitor C and a control circuit thereof, and is provided with 1 alternating current input and voltage regulating output common end (1), 1 alternating current input end (2) and 1 voltage regulating output end (3), and is characterized in that: t has 2 windings W1 and W2 of concatenating, 1 input (2) is connected with bilateral switch S2 one end, transformer T winding W1 one end, electric capacity C one end, bilateral switch S2 other end (4) and bilateral switch S1 one end, the W1 other end, W2 one end are connected, W2 other end (5) are connected with inductance L one end, 1 voltage regulation output (3) and inductance L other end, electric capacity C other end are connected. And 1 AC input and voltage regulation output common terminal (1) is connected with the other end of the two-way switch S1.
The invention can be applied to various instruments and equipment needing bidirectional voltage regulation, and is applied to a compensation type alternating current voltage-stabilizing power supply with a compensation transformer, and is characterized in that: 2 ends of the primary winding of the compensation transformer are connected with the voltage regulating output end (3) and the AC input voltage regulating output common end (1) of the double-switch AC chopping look askance at bidirectional voltage regulating circuit.
S1 is composed of 2 diodes and 2 triodes or 4 diodes and 1 triode. S2 is composed of 2 unidirectional thyristors. T1 has two windings W1 and W2 connected in series, and the number of turns of W2 is more than that of W1.
[ IV ] description of the drawings
FIG. 1 is a two-switch AC chopper bi-directional voltage regulator circuit of the present invention. Wherein: s1 is a master control bidirectional switch, S2 is a freewheeling bidirectional switch, D1 and D2 are diodes, V1 and V2 are triodes, T is a high-frequency boosting autotransformer, W1 and W2 are a primary longitudinal winding and a boosting winding of T, L is an inductor, and C is a capacitor.
The detailed implementation mode can be known from the attached figure 1: the S1 consists of 2 diodes D1 and D2 and 2 triodes V1 and V2, and the S2 consists of S2 and 2 unidirectional thyristors V3 and V4. T2 windings W1, W2 are connected in series, can realize the two-way voltage regulation of the chopping voltage of alternating current when the number of turns of W2 winding is more than the number of turns of W1 winding, its theory of operation is as follows: let the turn ratio of T two windings be 2, i.e. W2 has 2 times the number of turns of W1.
The Gong' S alternating current chopping voltage regulating circuit in the patent invented by the same inventor in 2007 is composed of a main control chopping switch S1, a follow current switch S2 and a winding W1 of T in the figure 1, the high-frequency chopping voltage on the W1 is boosted by 2 times of a series winding W2 at the ends (2 and 5) of 2 series windings of the auto-transformer to obtain chopping pulse voltage of three times of input voltage at two ends (2 and 1) of alternating current input, the high-frequency chopping pulse voltage is filtered by an inductor L and a capacitor C, and the waveform of the voltage obtained at two ends (3 and 2) is the same as the waveform at two ends of the alternating current input. The value of the voltage is determined by the chopping on-off ratio of the bidirectional switch S1, and three state voltages which are higher than, equal to and lower than the input alternating-current chopping voltage can be regulated at the two ends (3 and 2) by regulating the on-off ratio of the chopping switch S1. The bidirectional voltage regulation of the alternating current chopping can be realized by comparing the voltages between two points (2, 1) and (3, 2) of the input alternating current chopping voltage and selecting the output of the alternating current chopping voltage at the two ends (3, 1). The working principle is as follows: a) when the on-off ratio of S1 is close to zero, the voltage of the end 2 of the voltage regulating output end 3 is close to zero, the phase of the end voltage of the end 1 of the voltage regulating output end 3 is the same as that of the end voltage of the end 1 of the alternating current input end 2, therefore, the phase of the voltage of the two ends (3, 1) of the voltage regulating output is the same as that of the two ends (2, 1) of the alternating current input, and the value of the voltage regulating output is close to that of. b) When the on-off ratio of S1 is equal to 1 to 3, since the step-up ratio of the high-frequency step-up transformer is also 1 to 3, the voltage across the voltage regulation output terminal 3 to 2 is equal to the input voltage across the voltage regulation output terminal 1 to 2, and therefore, the voltage across the voltage regulation output terminals (3, 1) is equal to zero. c) When the on-off ratio of S1 is equal to 2 to 3, since the step-up ratio of the high-frequency step-up transformer is also 1 to 3, the voltage of the voltage-regulating output terminal 3 to terminal 2 is 2 times the input voltage of the voltage-regulating output terminal 1 to terminal 2, and therefore, the voltage phase of the voltage-regulating output terminals 3 and 1 is opposite to that of the voltage of the ac input terminals 2 and 1, and the voltage value is the same as the input voltage.
From the above, when the boosting ratio of the high-frequency boosting autotransformer is three times, 2 thyristor trigger poles of the S2 are provided with direct current trigger signals in the positive and negative half cycles of the power supply, the bidirectional voltage in the positive and negative directions of the input voltage can be adjusted to the input alternating current voltage between 2 voltage adjusting output ends (3, 1) by only adjusting the on-off ratio of the bidirectional switch S1 from near zero to two thirds.
It should be noted that the bidirectional switch S2 of the present invention can also be a fully controlled switch consisting of 2 diodes and 2 transistors. The S1 and S2 can also be a fully-controlled switch consisting of 2 diodes and 2 triodes. The invention also discloses a compensation type AC voltage-stabilized power supply designed and manufactured by applying the bidirectional voltage-regulating circuit, which belongs to the protection scope of the invention.
Compared with the Gong's half-bridge bidirectional voltage regulating circuit invented by the same inventor, the regulating range of the Gong's half-bridge bidirectional voltage regulating circuit is increased by 2 times, and the boosting high-frequency autotransformer is used for replacing a power frequency phase inversion autotransformer in the Gong's half-bridge bidirectional voltage regulating circuit, so that the alternating current chopping voltage-regulating compensation type alternating current voltage stabilizing power supply has the advantages of excellent performance, low cost, light weight, small size and the like, can be widely used for the alternating current chopping voltage-regulating compensation type alternating current voltage stabilizing power supply, and has great.

Claims (6)

1. Two switch AC chopper two-way voltage regulating circuit, it comprises 2 two-way switch S1 and S2, high frequency step up autotransformer T, inductance L, electric capacity C and control circuit, has 1 AC input and voltage regulation output common port (1), 1 AC input end (2), 1 voltage regulation output (3), its characterized in that: t has 2 windings W1 and W2 of concatenating, 1 input (2) is connected with bilateral switch S2 one end, transformer T winding W1 one end, electric capacity C one end, bilateral switch S2 other end (4) and bilateral switch S1 one end, the W1 other end, W2 one end are connected, W2 other end (5) are connected with inductance L one end, 1 voltage regulation output (3) and inductance L other end, the electric capacity C other end is connected. And 1 AC input and voltage regulation output common terminal (1) is connected with the other end of the two-way switch S1.
2. The double-switch alternating-current chopping bidirectional voltage regulating circuit according to claim 1, characterized in that: s1 and S2 are composed of 2 diodes and 2 triodes.
3. The double-switch alternating-current chopping bidirectional voltage regulating circuit according to claim 1, characterized in that: s1 and S2 are composed of 4 diodes and 1 triode.
4. The double-switch alternating-current chopping bidirectional voltage regulating circuit according to claim 1, characterized in that: s2 is composed of 2 unidirectional thyristors.
5. The two-switch AC chopping bidirectional voltage regulating circuit according to claim 5, characterized in that: the turn number of the boosting winding W2 of the T is more than 2 times of that of the primary winding W1.
6. A compensated ac voltage-stabilized power supply designed according to claim 1, wherein: the two ends of the primary winding of the compensation transformer are connected with the 3 ends and the 1 end of the claim 1.
CN202010277010.5A 2020-04-06 2020-04-06 Double-switch alternating current chopped wave bidirectional voltage regulating circuit and application thereof Pending CN111384863A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010277010.5A CN111384863A (en) 2020-04-06 2020-04-06 Double-switch alternating current chopped wave bidirectional voltage regulating circuit and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010277010.5A CN111384863A (en) 2020-04-06 2020-04-06 Double-switch alternating current chopped wave bidirectional voltage regulating circuit and application thereof

Publications (1)

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CN111384863A true CN111384863A (en) 2020-07-07

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CN202010277010.5A Pending CN111384863A (en) 2020-04-06 2020-04-06 Double-switch alternating current chopped wave bidirectional voltage regulating circuit and application thereof

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