CN104167926A - AC voltage stabilization power supply for adjusting compensating voltages by means of AC chopper circuit - Google Patents
AC voltage stabilization power supply for adjusting compensating voltages by means of AC chopper circuit Download PDFInfo
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- CN104167926A CN104167926A CN201410397539.5A CN201410397539A CN104167926A CN 104167926 A CN104167926 A CN 104167926A CN 201410397539 A CN201410397539 A CN 201410397539A CN 104167926 A CN104167926 A CN 104167926A
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Abstract
An AC voltage stabilization power supply for adjusting compensating voltages by means of an AC chopper circuit is formed by a filter inductor, filter capacitors, a self-coupling boosting transformer, compensating transformers, a master control two-way electronic switch, a follow current two-way switch, phase inversion two-way electronic switches and control circuits of the phase inversion two-way electronic switches. Single-phase compensating voltages and three-phase compensating voltages are available, and each three-phase compensating voltage is formed by three single-phase star connections. The AC voltage stabilization power supply is characterized in that a chopping regulating circuit is an AC voltage regulation circuit, in another word, the follow current two-way electric switch is formed by two unidirectional thyristors in an antiparallel mode, cost is reduced by 50-60 percent, each phase inversion switch is formed by two unidirectional thyristors in an antiparallel mode or formed by a bidirectional thyristor, the phase inversion switches also serve as short circuit switches of primary windings of the compensating transformers, the self-coupling boosting transformer boosts single-phase chopping voltages, and therefore current capacity of the AC voltage stabilization power supply is reduced. Compared with an intelligent contactless compensating AC voltage stabilization power supply, the AC voltage stabilization power supply has the advantages that the number of modules is small, precision is high, the cost performance ratio is high, and the compensating voltages can be adjusted in a continuous and stepless mode, upgrades the intelligent contactless compensating AC voltage stabilization power supply and has great economic benefits and social benefits.
Description
[one] technical field the present invention relates to cutting control AC voltage adjusting stabilized voltage power supply, relates in particular to regulate with alternating-current chopper circuit the continuous stepless contactless point compensating alternating current steady voltage plug of bucking voltage.
[two] background technology Intelligent contactless compensation type ac voltage stabilizer is the new product of releasing for overcoming the defects such as carbon brush voltage regulating and stabilizing device has contact and reaction speed is slow, there are at present a lot of units producing this class AC voltage regulator, this class AC voltage regulator, single-phase: with 1 voltage regulating transformer with 7-9 leading-out end and 7-9 piece thyristor module, thyristor zero triggers the armature winding voltage that alternating voltage in conversion tap is supplied with 1 compensator transformer, and compensator transformer secondary winding is connected on and in power supply electricity loop, obtains voltage stabilizing and export required bucking voltage.Three-phase: with the AC voltage regulator output three-phase voltage of voltage regulation of 3 single-phase Y-connections.It can accomplish the pressure regulation of fast reaction and great-jump-forward its circuit structure decision of this class AC voltage regulator, can not accomplish continuous stepless pressure regulation, reaches high voltage stability precision voltage stabilizing index.How accomplishing continuous stepless voltage-regulation voltage-stabilization, and don't can surpass the cost of Intelligent contactless compensation type AC regulated power supply, is the hang-up that alternating current steady voltage plug circle need to solve.
[three] summary of the invention the object of the invention is to exchange voltage-stabilizing power supply by invention continuous stepless contactless point compensating, its performance is better than Intelligent contactless compensation type AC regulated power supply, its cost is lower than Intelligent contactless compensation type AC regulated power supply, the double compensator transformer armature winding short switch of doing of paraphase bidirectional electronic switch, makes input AC terminal voltage lead directly to AC voltage-stabilizing output.
There is at present the trial production of a plurality of units with the cutting control AC voltage adjusting circuit on textbook, to regulate the alternating current steady voltage plug of bucking voltage.Because this voltage regulation circuit of chopping on textbook is: master control bidirectional electronic switch and afterflow bidirectional electronic are opened and be all the module forming with full control device and diode, because high-power IGBT module price is the nearly 2-3 of thyristor module price times, 2 two-way modules costs of a high-power chopper circuit are very high.Therefore, AC chopping joint regulates the cost of the compensation type AC regulated power supply of bucking voltage also can not fall.Same inventor has invented than the better two kinds of cutting control AC voltage adjusting circuit (patents of invention: 200710137528.8) of the cutting control AC voltage adjusting circuit on textbook, its 2 module costs have reduced nearly 1/3rd than textbook, this alternating-current chopper circuit is applied to continuous stepless contactless point compensating alternating current steady voltage plug, not only its performance is higher than Intelligent contactless compensation type AC regulated power supply, and its cost is also lower than Intelligent contactless compensation type AC regulated power supply, be exactly the compensation type ac voltage stabilizer of several AC chopping adjustings of the present invention's application alternating-current chopper circuit design invention below.
The compensation type ac voltage stabilizer that the first AC chopping regulates, it is that 220 volts of alternating voltages are directly to AC chopping regulating circuit, its output chopping voltage is through LC LC filtering acquisition and the same synchronous adjustable compensation voltage frequently of input voltage, by the bidirectional electronic of individual interlocking, open with one and power with tapped compensator transformer armature winding, the induced voltage polarity of compensator transformer secondary winding is controlled by 2 interlocking bidirectional electronic switch according to the height of input voltage, in alternating-current chopper circuit 1 or 2 full control device make-to-break ratios of induced voltage size adjustment regulate and reach the stable of output AC voltage.
The first AC chopping of the present invention regulates the AC voltage regulator of bucking voltage, and it is by filter capacitor (C, C1), filter inductance (L), at the beginning of 1 or 3, twist the tapped compensator transformer of winding band (T), 1 or 3 master controls two-way full control electronic switch (S1 or S1A, S1B, , S1C), 1 or 3 afterflows two-way half control electronic switch (S2 or S2A, S2B, S2C), 2 or 6 paraphase bidirectional electronics are opened also (S3, S4 or S3A, S3B, S3C, S4A, S4B, S4C) and control circuit form, the two-way full control electronic switch of each master control is by 4 diodes and 1 triode or 2 band damper diode (D1, D2) 2 triode (V1, V2) anti-series forms, and the two-way half control electronic switch of each afterflow is by 2 unidirectional thyristor (V3, V4) inverse parallel forms, it is characterized in that: bucking voltage regulates, with alternating-current chopper circuit, bucking voltage paraphase, use paraphase bidirectional electronic switch, the paraphase bidirectional electronic switch compensator transformer secondary winding short switch of holding concurrently, single phase alternating current (A.C.) stabilizator structure is the 1st ac input end (2) and compensator transformer (T) secondary winding (W2) one end, the two-way full control electronic switch of master control (S1) one end, filter capacitor (C1) one end connects, and the 1st AC voltage-stabilizing output (3) is connected with compensator transformer (T) secondary winding (W2) other end, the 2nd ac input end (1) and the 2nd AC voltage-stabilizing output, compensator transformer (T) armature winding (W11) one end, armature winding (W12) one end, the two-way half control electronic switch of afterflow (S2) one end, filter capacitor (C) one end, filter capacitor (C1) other end connects, the two-way full control electronic switch of master control (S1) other end (4) and the two-way half control electronic switch of afterflow (S2) other end, filter inductance (L) one end connects, filter inductance (L) other end (5) filter capacitor (C) other end, paraphase bidirectional electronic switch (S3) one end, paraphase bidirectional electronic switch (S4) one end connects, paraphase bidirectional electronic switch (S3) other end (6) is connected with compensator transformer (T) armature winding (W11) other end, paraphase bidirectional electronic switch (S4) other end (7) is connected with compensator transformer (T) armature winding (W12) other end, and three-phase AC voltage stabilizer is comprised of the Y-connection of above-mentioned 3 single phase alternating current (A.C.) pressurizers.
The compensation type AC regulated power supply that the second AC chopping of the present invention regulates, it is that 220 volts of alternating voltages are directly to chopper regulation circuit, its output chopping voltage is through inductance capacitance LC filtering acquisition and the same synchronous adjustable compensation voltage frequently of input voltage, bidirectional electronic by 4 interlockings is opened, according to the height of input voltage, automatically switch and compensate the polarity of transformation armature winding input current, make bucking voltage same-phase or the antiphase of the secondary sense of compensator transformer, in alternating-current chopper circuit 2 full control device make-to-break ratios of induced voltage size adjustment regulate and reach the stable of output AC voltage.
The second AC chopping of the present invention regulates the AC voltage regulator of bucking voltage, and it is by filter capacitor (C, C1), filter inductance (L), 1 or 3 compensator transformers (T), 1 or 3 master controls two-way full control electronic switch (S1 or S1A, S1B, , S1C), 1 or 3 afterflows two-way half control electronic switch (S2 or S2A, S2B, S2C), 4 or 12 the paraphase bidirectional electronics that are comprised of crystal orientation thyristor are opened also (S3～S6 or S3A, S3B, S3C～S6A, S6B, S6C) and control circuit form, the two-way full control electronic switch of each master control is by 2 band damper diode (D1, D2) 2 triode (V1, V2) anti-series forms, and the two-way half control electronic switch of each afterflow is by 2 unidirectional thyristor (V3, V4) inverse parallel forms, it is characterized in that: bucking voltage regulates, with alternating-current chopper circuit, bucking voltage paraphase, use paraphase bidirectional electronic switch, the paraphase bidirectional electronic switch compensator transformer secondary winding short switch of holding concurrently, single phase alternating current (A.C.) stabilizator structure is the 1st ac input end (2) and compensator transformer (T) secondary winding (W2) one end, the two-way full control electronic switch of master control (S1) one end, filter capacitor (C1) one end connects, and the 1st AC voltage-stabilizing output (3) is connected with compensator transformer (T) secondary winding (W2) other end, the 2nd ac input end (1) and the 2nd AC voltage-stabilizing output, the two-way half control electronic switch of afterflow (S2) one end, filter capacitor (C) one end, filter capacitor (C1) other end, paraphase bidirectional electronic switch (S4) one end, paraphase bidirectional electronic switch (S6) one end connects, the two-way full control electronic switch of master control (S1) other end (4) and the two-way half control electronic switch of afterflow (S2) other end, filter inductance (L) one end connects, filter inductance (L) other end (5) and filter capacitor (C) other end, paraphase bidirectional electronic switch (S3) one end, paraphase bidirectional electronic switch (S5) one end connects, paraphase bidirectional electronic switch (S3) other end (6) and paraphase bidirectional electronic switch (S4) other end, compensator transformer (T) armature winding (W1) one end connects, paraphase bidirectional electronic switch (S5) other end (7) and paraphase bidirectional electronic switch (S6) other end, compensator transformer (T) armature winding (W1) other end connects, and three-phase AC voltage stabilizer is comprised of the Y-connection of above-mentioned 3 single phase alternating current (A.C.) pressurizers.
The steady device of compensation-type alternating current that the third AC chopping of the present invention regulates, it is the expansion of the compensation type ac voltage stabilizer of the first AC chopping adjusting, it is first 220 volts of voltages of input to be boosted by autotransformer, the circuit of the compensation type ac voltage stabilizer regulating by the first AC chopping again carries out voltage stabilizing, its benefit is that the electric current of used two-way modules holds and reduces, module dissipation reduces, and it is applicable to 500 kilovolt-amperes of above Three-phase high-power compensation type ac voltage stabilizers especially.
The third AC chopping of the present invention regulates the AC voltage regulator of bucking voltage, and it is by filter capacitor (C, C1), filter inductance (L), at the beginning of 1 or 3, twist the tapped compensator transformer of winding band (T), 1 or 3 master controls two-way full control electronic switch (S1 or S1A, S1B, , S1C), 1 or 3 afterflows two-way half control electronic switch (S2 or S2A, S2B, S2C), 2 or 6 paraphase bidirectional electronics are opened also (S3, S4 or S3A, S3B, S3C, S4A, S4B, S4C) and control circuit form, the two-way full control electronic switch of each master control is by 2 band damper diode (D1, D2) 2 triode (V1, V2) anti-series forms, and the two-way half control electronic switch of each afterflow is by 2 unidirectional thyristor (V3, V4) inverse parallel forms, it is characterized in that: bucking voltage regulates, with alternating-current chopper circuit, bucking voltage paraphase, use paraphase bidirectional electronic switch, the paraphase bidirectional electronic switch compensator transformer secondary winding short switch of holding concurrently, single phase alternating current (A.C.) stabilizator structure is the 1st ac input end (2) and compensator transformer (T) secondary winding (W2) one end, the two-way full control electronic switch of master control (S1) one end, filter capacitor (C1) one end connects, and the 1st AC voltage-stabilizing output (3) is connected with compensator transformer (T) secondary winding (W2) other end, the 2nd ac input end (1) and the 2nd AC voltage-stabilizing output, compensator transformer (T) armature winding (W11) one end, armature winding (W12) one end, the two-way half control electronic switch of afterflow (S2) one end, filter capacitor (C) one end, filter capacitor (C1) other end connects, the two-way full control electronic switch of master control (S1) other end (4) and the two-way half control electronic switch of afterflow (S2) other end, filter inductance (L) one end connects, filter inductance (L) other end (5) filter capacitor (C) other end, paraphase bidirectional electronic switch (S3) one end, paraphase bidirectional electronic switch (S4) one end connects, paraphase bidirectional electronic switch (S3) other end (6) is connected with compensator transformer (T) armature winding (W11) other end, paraphase bidirectional electronic switch (S4) other end (7) is connected with compensator transformer (T) armature winding (W12) other end, and three-phase AC voltage stabilizer is comprised of the Y-connection of above-mentioned 3 single phase alternating current (A.C.) pressurizers.
The 4th kind of compensation type ac voltage stabilizer that AC chopping regulates, it is the expansion of the compensating-type AC voltage stabilization of the second AC chopping adjusting, it is first 220 volts of voltages of input to be boosted by autotransformer, the circuit of the compensation type ac voltage stabilizer regulating by the second AC chopping again carries out voltage stabilizing, its benefit is that the electric current of used two-way modules holds and reduces, and it is applicable to 500 kilovolt-amperes to 2000 kilovolt-amperes Three-phase high-power compensation type ac voltage stabilizers.
The 4th AC chopping of the present invention regulates the AC voltage regulator of bucking voltage, and it is by filter capacitor (C, C1), filter inductance (L), 1 or 3 compensator transformers (T1), 1 or 3 single-circuit transformers that boost (T2), 1 or 3 master controls two-way full control electronic switch (S1 or S1A, S1B, S1C), 1 or 3 afterflows two-way half control electronic switch (S2 or S2A, S2B, S2C), 4 or 12 paraphase bidirectional electronic switch (S3～S6 or S3A, S3B, S3C～S6A, S6B, S6C) and control circuit form, the two-way full control electronic switch of each master control is by 2 band damper diode (D1, D2) 2 triode (V1, V2) anti-series forms, and the two-way half control electronic switch of each afterflow is by 2 unidirectional thyristor (V3, V4) inverse parallel forms, and it is characterized in that: the voltage to the single-circuit transformer output of boosting is implemented AC chopping pressure regulation, alternating-current chopper circuit alternating-current chopper circuit, and bucking voltage paraphase, with 4 or 12 paraphase electronic switches (S3～S6 or S3A, S3B, S3C～S6A, S6B, S6c), single phase alternating current (A.C.) stabilizator structure is the 1st ac input end (2) and compensator transformer (T1) secondary winding (W2) one end, single-circuit transformer (T2) the winding centre tap end that boosts connects, the two-way full control electronic switch of master control (S1) one end (4) and single-circuit transformer (T2) the winding one end of boosting, filter capacitor (C1) one end connects, and the 1st AC voltage-stabilizing output (3) is connected with compensator transformer (T1) secondary winding (W2) other end, the 2nd ac input end (1) and the 2nd AC voltage-stabilizing output, single-circuit transformer (T2) the winding other end boosts, the two-way half control electronic switch of afterflow (S2) one end, filter capacitor (C) one end, paraphase bidirectional electronic switch (S4) one end, paraphase bidirectional electronic switch (S6) one end, filter capacitor (C1) other end connects, the two-way full control electronic switch of master control (S1) other end (5) and the two-way half control electronic switch of afterflow (S2) other end, filter inductance (L) one end connects, filter inductance (L) other end (6) and filter capacitor (C) other end, paraphase bidirectional electronic switch (S3) one end, paraphase bidirectional electronic switch (S5) one end connects, paraphase bidirectional electronic switch (S3) other end (7) and paraphase bidirectional electronic switch (S4) other end, compensator transformer (T1) armature winding (W1) one end connects, paraphase bidirectional electronic switch (S5) other end (8) and paraphase bidirectional electronic switch (S6) other end, compensator transformer (T1) armature winding (W1) other end connects, and three-phase AC voltage stabilizer is comprised of the Y-connection of above-mentioned 3 single phase alternating current (A.C.) pressurizers.
The AC voltage regulator of above-mentioned four kinds of single phase alternating current (A.C.) chopper regulation bucking voltages, there are 1 ac input end (2), 1 AC voltage-stabilizing output (3) to exchange the common port (1) of input and AC voltage-stabilizing output, the make-to-break ratios of 2 the full control devices (V1, V2) in the control two-way full control electronic switch of master control (S1) with 1, reach the single phase alternating current (A.C.) pressurizer of output voltage stabilization.Master control bidirectional electronic switch (S1) is by 2 diodes and 2 two-way full control electronic switches that triode forms, or by 4 diodes and 1 two-way full control electronic switch that triode forms.The third and the 4th kind of AC voltage regulator be before the Gong Shi alternating-current chopper circuit of the first and the 4th kind of AC voltage regulator in increase have 1 single-circuit transformer that boosts (T2), it can reduce the rated current of device in copped wave and phase inverter, but will improve device voltage.
The AC voltage regulator of above-mentioned four kinds of three-phase alternating current chopper regulation bucking voltages, all to connect into star by above-mentioned 3 corresponding identical single phase alternating current (A.C.) pressurizers, there is 1 to exchange input and public zero end (N) of AC voltage-stabilizing output, 3 three-phase alternating current input (A1, B1, C1) and 3 three-phase alternating current output end of pressure-stabilizing (A2, B2, C2), can export three-phase 380V interchange burning voltage has the single-phase 220V of public zero curve (N) to exchange burning voltage with three simultaneously, with regulating 3 two-way full control electronic switch (S1A of master control, S1B, S1C) the full control device in is cut control make-to-break ratio and is regulated bucking voltage to reach the three-phase AC voltage stabilizer of output voltage stabilization.
The common trait of the compensation type ac voltage stabilizer that above-mentioned four kinds of AC chopping of the present invention regulate is: adopt to exchange and cut control circuit adjusting bucking voltage, adopt power frequency compensator transformer secondary winding that required bucking voltage is provided, the positive negative side that bucking voltage is required, by paraphase bidirectional electronic switch, complete And and the double short circuit bidirectional electronic switch of doing compensator transformer armature winding of paraphase bidirectional electronic switch, during short circuit, making to compensate the impedance of transformation secondary winding is zero, the straight-through output of input two ends alternating voltage two ends.
[four] appended drawings 1 is the AC voltage regulator main circuit of the first single phase alternating current (A.C.) chopper regulation bucking voltage of the design.Accompanying drawing 2 is AC voltage regulator main circuits of the first three-phase alternating current chopper regulation bucking voltage of the design.Accompanying drawing 3 is AC voltage regulator main circuits of the second single phase alternating current (A.C.) chopper regulation bucking voltage of the design.Accompanying drawing 4 is AC voltage regulator main circuits of the second three-phase alternating current chopper regulation bucking voltage of the design.Accompanying drawing 5 is AC voltage regulator main circuits of the third single phase alternating current (A.C.) chopper regulation bucking voltage of the design.Accompanying drawing 6 is AC voltage regulator main circuits of the third three-phase alternating current chopper regulation bucking voltage of the design.Accompanying drawing 7 is AC voltage regulator main circuits of the design's the 4th kind of single phase alternating current (A.C.) chopper regulation bucking voltage.Accompanying drawing 8 is AC voltage regulator main circuits of the design's the 4th kind of three-phase alternating current chopper regulation bucking voltage.
[five] embodiment is from accompanying drawing 1: by the triode (V1, V2) of 2 band diodes (D1, D2), played a reversed role and connected to form the two-way full control electronic switch of master control (S1), anti-and connect to form the two-way half control electronic switch of afterflow (S2) by 2 unidirectional thyristors (V3, V4), by 4 thyristors (V5～V8), form respectively 2 paraphase bidirectional electronic switch (S3, S4), 2 armature windings of compensator transformer (T) (W11+W12) complete paraphase, 2 double secondary winding short switches of doing of paraphase bidirectional electronic switch, its operation principle is as follows:
1, at input 2 ends (1, 2) voltage is higher than AC voltage-stabilizing 2 ends (1, 3) during voltage, by the two-way full control electronic switch of master control (S1) and the two-way half control electronic switch of afterflow (S2), form AC chopping regulating circuit, its output chopping voltage after inductance (L) and electric capacity (C) filtering 1, 5 two ends become the alternating voltage with input same frequency, by paraphase electronic switch (S3), supply with compensator transformer (T) armature winding (W11) power supply, its secondary system group (W2) induces the voltage contrary with input voltage phase, regulate 2 full control device (V1 in master control bidirectional electronic switch (S1), V2) make-to-break ratio, regulate bucking voltage to reach and exchange output 2 terminal voltage voltage stabilizings.
2, at input 2 ends (1, 2) voltage is lower than AC voltage-stabilizing 2 ends (1, 3) during voltage, by the two-way full control electronic switch of master control (S1) and the two-way half control electronic switch of afterflow (S2), form AC chopping regulating circuit, its output chopping voltage after inductance (L) and electric capacity (C) filtering 1, 5 two ends become the alternating voltage with input same frequency, by paraphase electronic switch (S4), supply with compensator transformer (T) armature winding (W12) power supply, its secondary system group (W2) induces the voltage identical with input voltage phase, regulate 2 full control device (V1 in master control bidirectional electronic switch (S1), V2) make-to-break ratio regulates bucking voltage to reach and exchanges output 2 terminal voltage voltage stabilizings.
3, when input 2 ends (1,2) equal to exchange defeated 2 ends (1,3) voltage, or do not require when voltage stabilizing is exported, close the two-way full control electronic switch of master control (S1) control signal, open 2 paraphase bidirectional electronic switch (S3, S4), compensator transformer (T) armature winding (W11, W12) is by 2 bidirectional electronic switch (S3, S4) short circuit, compensator transformer (T) secondary winding (W2) impedance is zero, the straight-through output of input 2 ends (1,2) alternating voltage 2 ends (1,3).
From accompanying drawing 2: it is the main circuit that three-phase alternating current that the AC voltage regulator main circuit Y-connection by 3 single phase alternating current (A.C.) chopper regulation bucking voltages shown in accompanying drawing 1 forms is cut the AC voltage regulator of control regulation voltage, it has 1 to exchange input and public zero end (N) of AC voltage-stabilizing output, 3 three-phase alternating current input (A1, B1, C1) and 3 three-phase alternating current output end of pressure-stabilizing (A2, B2, C2), can export three single-phase 220V AC-AC burning voltages that three-phase 380V exchanges burning voltage and has public zero curve (N) simultaneously, with regulating 3 two-way full control electronic switch (S1A of master control, S2A, S1B) in, full control device is cut control make-to-break ratio and is regulated bucking voltage size, reach the three-phase AC voltage stabilizer of output voltage stabilization.
Known by accompanying drawing 3: accompanying drawing 8 unidirectional thyristors of 3 use (V5～V12) form 2 bidirectional electronic switch (S3, S4) on the alternative accompanying drawing 1 of 4 paraphase bidirectional electronic switch (S3～S6) and complete paraphase, during due to 2 bidirectional electronic switch paraphase, compensator transformer will have 2 armature windings (being with tapped armature winding for 1).And during with 4 bidirectional electronic switch paraphase, as long as compensator transformer is 1 armature winding.The operation principle of accompanying drawing 3 and accompanying drawing 1 are roughly the same.
From accompanying drawing 4: it is the alternating current steady voltage plug by the three-phase alternating current chopper regulation bucking voltage of main circuit Y-connection shown in 3 accompanying drawings 3,24 single-phase thyristors of accompanying drawing 4 use form 12 paraphase bidirectional electronic switch, complete paraphase for accompanying drawing 2 use 6 paraphase bidirectional electronic switch, their operation principle also with accompanying drawing 2 roughly the same.
From accompanying drawing 5: it is to increase by 1 single-circuit transformer that boosts (T2) before accompanying drawing 1 AC chopping regulating circuit, object is to improve the input ac voltage of alternating-current chopper circuit, improve compensator transformer transformation ratio, the rated current capacity that makes to cut the bidirectional electronic switch that control circuit and phase inverter use reduces, and device power consumption reduces.As 1000KVA compensation type ac voltage stabilizer, the copped wave of input 220V alternating voltage, will 1000 peace IGBT modules, elementary and the secondary transformation ratio of compensator transformer is 5: 1, by step-up auto-transformer (T2), boost to 380V and supply with alternating-current chopper circuit, the master control of chopper circuit and afterflow bidirectional electronic switch and paraphase bidirectional electronic switch, choosing is applicable to the module of 380V alternating-current chopper circuit, elementary and the secondary transformation ratio of compensator transformer is changed high by 1,7 times, 6 blocks current capacity used just can reduce by 1,7 times, and its power loss reduces.
From accompanying drawing 6: it is the AC voltage regulator by the three-phase alternating current chopper regulation bucking voltage of main circuit Y-connection shown in 3 accompanying drawings 5.Its merit is made principle and accompanying drawing 5 roughly the same.
The two-way full control electronic switch of master control (S1) on foregoing circuit figure of the present invention is except forming with 2 diodes and 2 triodes, the two-way full control electronic switch of master control that also available 4 diodes and 1 triode form, paraphase bidirectional electronic switch (S3～S6) on foregoing circuit figure except forming with 2 unidirectional thyristor inverse parallels, also available 1 bidirectional thyristor, solid bidirectional switch.
Single-phase and three-phase Gong Shi alternating-current chopper circuit of the present invention regulates that the alternating current steady voltage plug of bucking voltage has that cost is low, power factor is high, harmonic wave is few, continuous stepless, contactless, precision advantages of higher, is the AC voltage regulator renewal product that existing intelligent contactless AC voltage regulator and carbon brush regulate.
Claims (9)
1. AC chopping regulates the alternating current steady voltage plug of bucking voltage, it is by filter capacitor, filter inductance, single-circuit transformer boosts, 1 or 3 armature winding band centre taps or the not compensator transformer to tap, 1 or 3 two-way full control electronic switches of master control, 1 or 3 two-way half control electronic switches of afterflow, a plurality of paraphase bidirectional electronic switch and control circuit thereof form, the two-way full control electronic switch of each master control is by 2 band damping rectifier diode (D1, D2) 2 triode (V1, V2) anti-series, or formed by 4 rectifier diodes and 1 triode, the two-way half control electronic switch of each afterflow is by 2 unidirectional thyristor (V3, V4) inverse parallel forms, each paraphase bidirectional electronic switch is comprised of 2 unidirectional thyristor inverse parallels, or bidirectional thyristor, it is characterized in that: single-phase and adjusting three-phase ac regulated power supply bucking voltage is that the alternating-current chopper circuit that adopts the two-way full control electronic switch of master control and the two-way half control electronic switch of afterflow to form regulates bucking voltage, the paraphase of bucking voltage adopts the paraphase bidirectional electronic switch of bidirectional thyristor or 2 unidirectional thyristor reverse parallel connections, the double compensator transformer armature winding short circuit bidirectional electronic switch of doing of paraphase bidirectional electronic switch.
2. AC chopping according to claim 1 regulates the alternating current steady voltage plug of bucking voltage, it is characterized in that: bucking voltage regulates, with alternating-current chopper circuit, bucking voltage paraphase, use paraphase bidirectional electronic switch, the hold concurrently short switch of compensator transformer secondary winding of paraphase bidirectional electronic switch, single phase alternating current (A.C.) stabilizator structure is the 1st ac input end (2) and compensator transformer (T) secondary winding (W2) one end, the two-way full control electronic switch of master control (S1) one end, filter capacitor (C1) one end connects, the 1st AC voltage-stabilizing output (3) is connected with compensator transformer (T) secondary winding (W2) other end, the 2nd ac input end (1) and the 2nd AC voltage-stabilizing output, compensator transformer (T) armature winding (W11) one end, armature winding (W12) one end, the two-way half control electronic switch of afterflow (S2) one end, filter capacitor (C) one end, filter capacitor (C1) other end connects, the two-way full control electronic switch of master control (S1) other end (4) and the two-way half control electronic switch of afterflow (S2) other end, filter inductance (L) one end connects, filter inductance (L) other end (5) filter capacitor (C) other end, paraphase bidirectional electronic switch (S3) one end, paraphase bidirectional electronic switch (S4) one end connects, paraphase bidirectional electronic switch (S3) other end (6) is connected with compensator transformer (T) armature winding (W11) other end, paraphase bidirectional electronic switch (S4) other end (7) is connected with compensator transformer (T) armature winding (W12) other end, three-phase AC voltage stabilizer is comprised of the Y-connection of above-mentioned 3 single phase alternating current (A.C.) pressurizers.
3. AC chopping according to claim 1 regulates the alternating current steady voltage plug of bucking voltage, it is characterized in that: bucking voltage regulates, with alternating-current chopper circuit, bucking voltage paraphase, use paraphase bidirectional electronic switch, the paraphase bidirectional electronic switch compensator transformer secondary winding short switch of holding concurrently, single phase alternating current (A.C.) stabilizator structure is the 1st ac input end (2) and compensator transformer (T) secondary winding (W2) one end, the two-way full control electronic switch of master control (S1) one end, filter capacitor (C1) one end connects, the 1st AC voltage-stabilizing output (3) is connected with compensator transformer (T) secondary winding (W2) other end, the 2nd ac input end (1) and the 2nd AC voltage-stabilizing output, the two-way half control electronic switch of afterflow (S2) one end, filter capacitor (C) one end, filter capacitor (C1) other end, paraphase bidirectional electronic switch (S4) one end, paraphase bidirectional electronic switch (S6) one end connects, the two-way full control electronic switch of master control (S1) other end (4) and the two-way half control electronic switch of afterflow (S2) other end, filter inductance (L) one end connects, filter inductance (L) other end (5) and filter capacitor (C) other end, paraphase bidirectional electronic switch (S3) one end, paraphase bidirectional electronic switch (S5) one end connects, paraphase bidirectional electronic switch (S3) other end (6) and paraphase bidirectional electronic switch (S4) other end, compensator transformer (T) armature winding (W1) one end connects, paraphase bidirectional electronic switch (S5) other end (7) and paraphase bidirectional electronic switch (S6) other end, compensator transformer (T) armature winding (W1) other end connects, three-phase AC voltage stabilizer is comprised of the Y-connection of above-mentioned 3 single phase alternating current (A.C.) pressurizers.
4. a kind of AC chopping according to claim 1 regulates the alternating current steady voltage plug of bucking voltage, it is characterized in that: bucking voltage regulates, with alternating-current chopper circuit, bucking voltage paraphase, use paraphase bidirectional electronic switch, the paraphase bidirectional electronic switch compensator transformer secondary winding short switch of holding concurrently, single phase alternating current (A.C.) stabilizator structure is the 1st ac input end (2) and compensator transformer (T) secondary winding (W2) one end, the two-way full control electronic switch of master control (S1) one end, filter capacitor (C1) one end connects, the 1st AC voltage-stabilizing output (3) is connected with compensator transformer (T) secondary winding (W2) other end, the 2nd ac input end (1) and the 2nd AC voltage-stabilizing output, compensator transformer (T) armature winding (W11) one end, armature winding (W12) one end, the two-way half control electronic switch of afterflow (S2) one end, filter capacitor (C) one end, filter capacitor (C1) other end connects, the two-way full control electronic switch of master control (S1) other end (4) and the two-way half control electronic switch of afterflow (S2) other end, filter inductance (L) one end connects, filter inductance (L) other end (5) filter capacitor (C) other end, paraphase bidirectional electronic switch (S3) one end, paraphase bidirectional electronic switch (S4) one end connects, paraphase bidirectional electronic switch (S3) other end (6) is connected with compensator transformer (T) armature winding (W11) other end, paraphase bidirectional electronic switch (S4) other end (7) is connected with compensator transformer (T) armature winding (W12) other end, three-phase AC voltage stabilizer is comprised of the Y-connection of above-mentioned 3 single phase alternating current (A.C.) pressurizers.
5. a kind of AC chopping according to claim 1 regulates the alternating current steady voltage plug of bucking voltage, it is characterized in that: the voltage to the single-circuit transformer output of boosting is implemented AC chopping pressure regulation, alternating-current chopper circuit Gong Shi alternating-current chopper circuit, bucking voltage paraphase, with 4 or 12 paraphase electronic switches (S3～S6 or S3A, S3B, S3C～S6A, S6B, S6c), single phase alternating current (A.C.) stabilizator structure is the 1st ac input end (2) and compensator transformer (T1) secondary winding (W2) one end, single-circuit transformer (T2) the winding centre tap end that boosts connects, the two-way full control electronic switch of master control (S1) one end (4) and single-circuit transformer (T2) the winding one end of boosting, filter capacitor (C1) one end connects, the 1st AC voltage-stabilizing output (3) is connected with compensator transformer (T1) secondary winding (W2) other end, the 2nd ac input end (1) and the 2nd AC voltage-stabilizing output, single-circuit transformer (T2) the winding other end boosts, the two-way half control electronic switch of afterflow (S2) one end, filter capacitor (C) one end, paraphase bidirectional electronic switch (S4) one end, paraphase bidirectional electronic switch (S6) one end, filter capacitor (C1) other end connects, the two-way full control electronic switch of master control (S1) other end (5) and the two-way half control electronic switch of afterflow (S2) other end, filter inductance (L) one end connects, filter inductance (L) other end (6) and filter capacitor (C) other end, paraphase bidirectional electronic switch (S3) one end, paraphase bidirectional electronic switch (S5) one end connects, paraphase bidirectional electronic switch (S3) other end (7) and paraphase bidirectional electronic switch (S4) other end, compensator transformer (T1) armature winding (W1) one end connects, paraphase bidirectional electronic switch (S5) other end (8) and paraphase bidirectional electronic switch (S6) other end, compensator transformer (T1) armature winding (W1) other end connects, three-phase AC voltage stabilizer is comprised of the Y-connection of above-mentioned 3 single phase alternating current (A.C.) pressurizers.
6. AC chopping according to claim 1 regulates the alternating current steady voltage plug of bucking voltage, it is characterized in that: presentate cross streams pressurizer has 1 ac input end (2), 1 AC voltage-stabilizing output (3) to exchange the common port (1) of input and AC voltage-stabilizing output, the make-to-break ratios of 2 the full control devices (V1, V2) in 1 two-way full control electronic switch of master control of control (S1) with 1, just reaches the single phase alternating current (A.C.) pressurizer of output voltage stabilization.
7. a kind of AC chopping according to claim 1 regulates the alternating current steady voltage plug of bucking voltage, it is characterized in that: the two-way full control electronic switch of described master control (S1) is by 2 rectifying tubes and 2 two-way full control electronic switches that full control device forms.
8. AC chopping according to claim 1 regulates the alternating current steady voltage plug of bucking voltage, it is characterized in that: the two-way full control electronic switch of described master control (S1) is by 4 rectifying tubes and 1 two-way full control electronic switch that full control device forms.
9. AC chopping according to claim 1 regulates the alternating current steady voltage plug of bucking voltage, it is characterized in that: three-phase AC voltage stabilizer is to connect into star by 3 identical single phase alternating current (A.C.) pressurizers, there is 1 to exchange input and public zero end (N) of AC voltage-stabilizing output, 3 three-phase alternating current input (A1, B1, C1) and 3 three-phase alternating current output end of pressure-stabilizing (A2, B2, C2), can export three-phase 380V interchange burning voltage has the single-phase 220V of public zero curve (N) to exchange burning voltage with three simultaneously, with regulating 3 two-way full control electronic switch (S1A of master control, S1B, S1C) the full control device in is cut control make-to-break ratio and is regulated bucking voltage size, reach the three-phase AC voltage stabilizer of output voltage stabilization.
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| CN104777345A (en) * | 2015-04-22 | 2015-07-15 | 四川英杰电气股份有限公司 | Current detecting circuit and feedback control circuit applied to laminated control power supply and power supply |
| CN107017783A (en) * | 2017-05-04 | 2017-08-04 | 浙江电牛电气有限公司 | The distribution transformer for keeping output voltage constant |
| CN107404259A (en) * | 2017-08-22 | 2017-11-28 | 北京机械设备研究所 | A kind of brushless DC motor control circuit |
| CN107612434A (en) * | 2017-08-22 | 2018-01-19 | 北京机械设备研究所 | A kind of brshless DC motor alignment circuit based on wave chopping technology |
| CN109713910A (en) * | 2019-01-16 | 2019-05-03 | 浙江省检验检疫科学技术研究院 | Only handle the alternating current steady voltage plug of Partial Power |
| CN112103953A (en) * | 2020-09-11 | 2020-12-18 | 西安交通大学 | Stepless voltage regulation distribution transformer based on bidirectional controllable switch and voltage regulation method |
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| CN109713910A (en) * | 2019-01-16 | 2019-05-03 | 浙江省检验检疫科学技术研究院 | Only handle the alternating current steady voltage plug of Partial Power |
| CN112103953A (en) * | 2020-09-11 | 2020-12-18 | 西安交通大学 | Stepless voltage regulation distribution transformer based on bidirectional controllable switch and voltage regulation method |
| CN112103953B (en) * | 2020-09-11 | 2022-04-22 | 西安交通大学 | Stepless voltage regulation distribution transformer based on bidirectional controllable switch and voltage regulation method |
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Application publication date: 20141126 |