CN103795266A - Transformer-free single-phase and three-phase voltage reduction AC stabilized-voltage power supply - Google Patents
Transformer-free single-phase and three-phase voltage reduction AC stabilized-voltage power supply Download PDFInfo
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- CN103795266A CN103795266A CN201410061700.1A CN201410061700A CN103795266A CN 103795266 A CN103795266 A CN 103795266A CN 201410061700 A CN201410061700 A CN 201410061700A CN 103795266 A CN103795266 A CN 103795266A
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Abstract
The invention belongs to a transformer-free single-phase and three-phase voltage reduction AC stabilized-voltage power supply which is composed of an inductance-capacitance filter circuit, a fully-controlled two-direction electronic switch, a control trigger circuit thereof, a half-controlled two-direction electronic switch and a control trigger circuit thereof. The fully-controlled two-direction electronic switch consists of rectifier diodes and fully-controlled devices. The half-controlled two-direction electronic switch consists of two anti-parallel connection thyristors. The fully-controlled two-direction electronic switch, the trigger circuit thereof, the half-controlled two-direction electronic switch and the trigger circuit thereof constitute a single-phase chopping AC voltage regulator circuit, break-make ratio signals of the two fully-controlled devices in the fully-controlled two-direction electronic switch are automatically adjusted, and thus the purpose of voltage reduction and voltage stabilization can be achieved. The three-phase voltage reduction AC stabilized-voltage power supply is composed of three star connection single-phase voltage reduction voltage stabilization AC power supplies. Compared with a voltage reduction and voltage stabilization AC power supply with an industrial frequency transformer and a voltage reduction and voltage stabilization AC power supply with a high frequency transformer, the transformer-free single-phase and three-phase voltage reduction AC stabilized-voltage power supply has the advantages of being simple in circuit, small in size, low in weight and low in cost, thereby having good economic and social benefits.
Description
One, technical field the invention belongs to power technique fields, relates to single-phase and three-phase step-down alternating current steady voltage plug.
Two, background technology is applied extremely wide single, three-phase step-down alternating current steady voltage plug at present power frequency autotransformer or high frequency transformer.They exist volume large, Heavy Weight, high in cost of production defect.The present invention proposes a kind of new transless and cuts the step-down alternating current steady voltage plug of controlling AC voltage adjusting.
Three. summary of the invention is of the present invention has single-phase and three-phase two classes without transformation step-down alternating current steady voltage plug.The single-phase step-down alternating current steady voltage plug of transless, formed by 2 inductance-capacitance filter, 1 half control bidirectional electronic switch and 1 full control bidirectional electronic switch and trigger control circuit thereof, automatically regulate the make-to-break ratio of 2 full control device control signals in full control bidirectional electronic switch, just reach and regulate step-down voltage size, reach the stable object of output AC voltage step-down.Transless three-phase step-down alternating current steady voltage plug, is made up of the single-phase step-down alternating current steady voltage plug of transless of 3 Y-connections, regulates the make-to-break ratios of each 2 full control device control signal in mutually simultaneously, reaches the stable object of three-phase output voltage.
The single-phase step-down alternating current steady voltage plug of a kind of transless, it is by filter inductance (L1, L2), filter capacitor (C1, C2), two-way full control electronic switch (S1), two-way half control electronic switch (S2) and control triggering electric circuit composition thereof, two-way full control electronic switch (S1) is made up of 2 full control devices and 2 rectifying tubes, two-way half control electronic switch (S2) is made up of the thyristor of two reverse parallel connections, it is characterized in that: single-phase step-down alternating current steady voltage plug has an input, output common port (2), another ac input end (1) connects filter inductance (L1), or do not have filter inductance (L1) to be directly connected with two-way full control electronic switch (S1) one end (3), inductance (L1) other end (3) and filter capacitor (C1), two-way full control electronic switch (S1) 3 of one end connection, the other end (4) of two-way full control electronic switch (S1) and filter inductance (L2), two-way half control electronic switch (s2) 3 of one end connection, filter inductance (L2) other end is connected with lowering and stabilizing blood pressure output (5), 2 filter capacitor (C1, C2) the other end, the other end of two-way half control electronic switch (S2) and AC power input, output common port (2) connects.Transless three-phase step-down alternating current steady voltage plug is made up of the single-phase step-down alternating current steady voltage plug of 3 Y-connections.Single-phase and the three-phase step-down alternating current steady voltage plug of transless is during for street lamp, the control signal of 2 the full control devices (V1, V2) in full control electronic switch (S1), can increase time control variables, the different time periods requires to have different reduced output voltage magnitudes of voltage, while thering is no control signal, output voltage is just zero.Power supply is contributed consumption just not to be had yet, and therefore, is called street lamp intelligent energy-saving stabilized voltage power supply.
Core technology of the present invention is the cutting control AC voltage adjusting circuit of the same inventor's invention of application; cancel high frequency transformer; cut control output voltage and directly obtain required ac buck voltage stabilizing or voltage controller power source through LC (L2, C2) filtering; therefore; some manufacturer is for saving cost; do not input the single-phase and three-phase step-down alternating current steady voltage plug of the transless of two ends LC (L1, C1) filter filter, be also belong to protection scope of the present invention within.
Four, appended drawings 1 is the single-phase step-down alternating current steady voltage plug of transless of the present invention main circuit schematic diagram, astable alternating voltage U12, by autotransformer (1) and the input of (2) end, stabilized single phase voltage U 52 is exported by (5) and (2).Accompanying drawing 2 is transless three-phase step-down alternating current steady voltage plug main circuit schematic diagrams of the present invention, and it is made up of the single-phase step-down alternating current steady voltage plug of transless shown in 3 accompanying drawings 1.
Five, specific implementation method is from the single-phase step-down stream of accompanying drawing 1 transless stabilized voltage power supply main circuit schematic diagram, and two-way full control electronic switch S1 is that control switch is cut in master control, and two-way half control electronic switch S2 is afterflow electronic switch.In the time of full control device V1 and the full conducting of V2, the voltage U 12 at input two ends (1,2) just equals to export two ends (5,2) U52 voltage, in the time of full control device V1 and V2 contract fully, no matter input two ends (1,2) voltage U 12 is how many, output two ends (5,2) U52 voltage is all zero.In the time that the control utmost point of full control device V1 and V2 has pulsewidth to cut control signal, V3 is the continued flow tube of V1, and V4 is the continued flow tube of V2.Regulate V1 and V2 control signal make-to-break ratio, just the size of energy regulation output two ends (5,2) output voltage U 52.Go the control signal make-to-break ratio of controlling V1 and V2 just can reach the object of exporting two ends (5,2) voltage step-down voltage stabilizing output voltage signal negative feedback.Should particularly point out, the triggering signal of intergranular pipe 3 and V4 is required be: V3 has DC trigger signal in the whole positive half cycle of power supply, in power-half cycle, without DC trigger signal, V4 without DC trigger signal, and has DC trigger signal in the whole positive half cycle of power supply in whole power-half cycle.Like this as long as control V1 and V2 control signal just can realize the lowering and stabilizing blood pressure of output two ends (5,2) voltage and the object of open and close control.Increase time control parameter in control signal time, just can realize the auto-open-close of street lamp and by the time provide lowering and stabilizing blood pressure the object of requirement output voltage, reach best power savings, the single-phase step-down alternating current steady voltage plug of transless of Here it is intelligent road-lamp voltage-reducing and electricity-saving.
Transless three-phase alternating current lowering and stabilizing blood pressure power supply shown in accompanying drawing 2, it is by the transless single phase alternating current (A.C.) lowering and stabilizing blood pressure power supply shown in 3 Fig. 1, the transless three-phase step-down alternating current steady voltage plug forming by Y-connection mode, it is by 3 two-way full control electronic switches (S1A, S1B, S1C), 3 two-way half control electronic switches (S2A, S2B, S2C), 2 three-phase filter inductances, or 6 single-phase filter inductances, 6 filter capacitors, half controls and entirely control the trigger control circuit composition of device.Its operation principle is identical with the single-phase step-down alternating current steady voltage plug of transless, astable three-phase alternating voltage UA1, UB1, UC1, inputted by three-phase and four-line (A1, B1, C1, N), three-phase alternating current output voltage U A2, UB2, UC2 that step-down is stable, three-phase and four-line (A2, B2, C2, N) output, it can stable output three-phase step-down alternating voltage, also can export 3 has the single-phase step-down of public zero curve to exchange burning voltages.
Single-phase and the three-phase step-down alternating current steady voltage plug of transless of the present invention, owing to there is no power frequency appendiron core transformer, there is no high frequency transformer yet, there is the advantages such as circuit knot machine is simple, cost is low, volume is little, lightweight, therefore, after enforcement, there are larger economic benefit and social benefit, use especially for the street lamp voltage-reducing and electricity-saving of street lamp intelligent energy-saving control, know can type the single-phase and three-phase step-down alternating current steady voltage plug of street lamp transless, there is the full benefit of very large economic benefit and society.
Claims (4)
1. a transless is single-phase exchanges voltage-stabilizing power supply with three-phase step-down, it is by filter inductance (L1, L2), filter capacitor (C1, C2), two-way full control electronic switch (S1), two-way half control electronic switch (S2) and control triggering electric circuit composition thereof, two-way full control electronic switch (S1) is made up of 2 full control devices and 2 rectifying tubes, two-way half control electronic switch (S2) is made up of the thyristor of two reverse parallel connections, it is characterized in that: the single-phase step-down alternating current steady voltage plug of transless has an input, output common port (2), another ac input end (1) connects filter inductance (L1), or do not have filter inductance (L1) to be directly connected with two-way full control electronic switch (S1) one end (3), inductance (L1) other end (3) and filter capacitor (C1), two-way full control electronic switch (S1) 3 of one end connection, the other end (4) of two-way full control electronic switch (S1) and filter inductance (L2), two-way half control electronic switch (s2) 3 of one end connection, filter inductance (L2) other end is connected with lowering and stabilizing blood pressure output (5), 2 filter capacitor (C1, C2) the other end, the other end of two-way half control electronic switch (S2) and AC power input, output common port (2) connects, transless three-phase step-down exchanges voltage-stabilizing power supply and is made up of the single-phase step-down alternating current steady voltage plug of transless of 3 Y-connections.
2. the single-phase and three-phase step-down alternating current steady voltage plug of transless according to claim 1, is characterized in that: the single-phase step-down alternating current steady voltage plug of transless is the single-phase step-down alternating current steady voltage plug of transless that a street lamp is used.
3. the single-phase and three-phase step-down alternating current steady voltage plug of transless according to claim 1, is characterized in that: transless three-phase step-down alternating current steady voltage plug is the transless three-phase step-down alternating current steady voltage plug that a street lamp is used.
4. according to the single-phase and three-phase step-down alternating current steady voltage plug of the transless described in claim 2 and 3, it is characterized in that: the single-phase and three-phase road lamp step-down alternating current steady voltage plug of transless is and three-phase step-down alternating current steady voltage plug single-phase by the intelligent transless of street lighting requirement design.
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| CN201410061700.1A CN103795266A (en) | 2014-02-19 | 2014-02-19 | Transformer-free single-phase and three-phase voltage reduction AC stabilized-voltage power supply |
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| CN201410061700.1A CN103795266A (en) | 2014-02-19 | 2014-02-19 | Transformer-free single-phase and three-phase voltage reduction AC stabilized-voltage power supply |
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Cited By (8)
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| CN104124875A (en) * | 2014-08-06 | 2014-10-29 | 龚秋声 | Single-phase and three-phase chopping power-variable compensation alternating-current regulated power supply |
| CN104135162A (en) * | 2014-07-15 | 2014-11-05 | 龚秋声 | Symmetric chopped-control AC voltage regulation circuit |
| CN104167926A (en) * | 2014-08-10 | 2014-11-26 | 龚秋声 | AC voltage stabilization power supply for adjusting compensating voltages by means of AC chopper circuit |
| CN104184338A (en) * | 2014-08-30 | 2014-12-03 | 龚秋声 | Contactless self-coupling voltage regulator |
| CN104201905A (en) * | 2014-08-30 | 2014-12-10 | 龚秋声 | Two-way AC chopper control circuit |
| CN104767390A (en) * | 2015-04-06 | 2015-07-08 | 龚秋声 | Bridge type alternating current chopping wave bidirectional voltage regulator circuit |
| CN105656316A (en) * | 2016-01-01 | 2016-06-08 | 龚秋声 | Single-phase and three-phase continuous stepless noncontact high-precision alternating-current voltage-stabilized power supplies |
| CN106059326B (en) * | 2016-07-12 | 2018-07-31 | 苏州大学 | A kind of three-phase tri-level Buck type AC-AC converters and its control method |
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| CN203911771U (en) * | 2014-02-19 | 2014-10-29 | 龚秋声 | Voltage reduction AC voltage-stablizer without transformer |
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| US6459606B1 (en) * | 2001-09-27 | 2002-10-01 | York International Corporation | Control system and method for four-quadrant switches in three-phase PWM AC voltage regulators |
| CN101039078A (en) * | 2007-01-30 | 2007-09-19 | 南京理工大学 | Non-isolation type AC-AC tri-level converter |
| CN101123401A (en) * | 2007-08-09 | 2008-02-13 | 龚秋声 | Cutting control AC voltage adjusting circuit and its application |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104135162A (en) * | 2014-07-15 | 2014-11-05 | 龚秋声 | Symmetric chopped-control AC voltage regulation circuit |
| CN104124875A (en) * | 2014-08-06 | 2014-10-29 | 龚秋声 | Single-phase and three-phase chopping power-variable compensation alternating-current regulated power supply |
| CN104167926A (en) * | 2014-08-10 | 2014-11-26 | 龚秋声 | AC voltage stabilization power supply for adjusting compensating voltages by means of AC chopper circuit |
| CN104184338A (en) * | 2014-08-30 | 2014-12-03 | 龚秋声 | Contactless self-coupling voltage regulator |
| CN104201905A (en) * | 2014-08-30 | 2014-12-10 | 龚秋声 | Two-way AC chopper control circuit |
| CN104201905B (en) * | 2014-08-30 | 2019-04-02 | 龚秋声 | AC chopping bidirectional pressure regulating circuit |
| CN104767390A (en) * | 2015-04-06 | 2015-07-08 | 龚秋声 | Bridge type alternating current chopping wave bidirectional voltage regulator circuit |
| CN105656316A (en) * | 2016-01-01 | 2016-06-08 | 龚秋声 | Single-phase and three-phase continuous stepless noncontact high-precision alternating-current voltage-stabilized power supplies |
| CN106059326B (en) * | 2016-07-12 | 2018-07-31 | 苏州大学 | A kind of three-phase tri-level Buck type AC-AC converters and its control method |
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Application publication date: 20140514 |