CN203840208U - High-frequency transformation compensation voltage alternating current voltage stabilizer - Google Patents

Abstract

Provided is a high-frequency transformation compensation voltage alternating current voltage stabilizer. The single-phase high-frequency transformation compensation voltage alternating current voltage stabilizer is composed of a high-frequency transformer (B), two inductance-capacitance filtering (L1C1 and L2C2) circuits, two bidirectional full control electronic switches (S1 and S3), a bidirectional half control electronic switch (S2) and a control trigger circuit. The bidirectional full control electronic switches (S1 and S3) are composed of two full control components and two rectifier tubes. The bidirectional half control electronic switch (S2) is composed of two reverse and parallel thyristors. The two full control components (V1, V2 or V1, V3) in the bidirectional electronic switches are employed to adjust the output alternating current voltage. The three-phase high-frequency transformation compensation voltage alternating current voltage stabilizer is composed of 3 single-phase high-frequency transformation compensation voltage alternating current voltage stabilizers in star connection. The high-frequency transformation compensation voltage alternating current voltage stabilizer has advantages of small size, light weight, no contact points, rapid response, low cost, good reliability and the like, and has wide market development prospects and economic and social benefits.

Description

The AC voltage regulator of high frequency conversion bucking voltage

One, technical field the utility model belongs to power technique fields, relates to single-phase and three-phase compensation type ac voltage stabilizer.

Two, extremely wide single, the compensation full-automatic AC pressurizer of three-phase (SVC series) of at present application of background technology and single, that three-phase Full-automatic compensated electric power voltage-stabilizer (BW/DBW-SG series) all exists carbon brush is fragile, the adjustment time such as grows at the shortcoming.And the Intelligent contactless AC power voltage stabilizer (ZBW/ZDBW etc.) of producing at present, although contactless, reaction speed is fast, but exist transformer and need a lot of leading-out ends, use a lot of half control bidirectional electronic switch conversion regulation output voltage, and strictly speaking, its output voltage is discontinuous." a kind of single-phase and compensation control pressure regulation AC voltage regulator of cutting of three-phase " of same design (patent No.: the defect such as 201320025860,1), yet have that Industrial Frequency Transformer consumptive material is many, Heavy Weight, volume are large.

Three. summary of the invention the utility model is to reduce volume, weight, the copper consumption of AC voltage regulator, adopts high frequency transformer to substitute the Industrial Frequency Transformer voltage that affords redress, and reaches material-saving, energy-conservation and reduce the object of AC voltage regulator volume and weight.The AC voltage regulator of the design's high frequency conversion bucking voltage has single-phase and three-phase two classes.The single phase alternating current (A.C.) pressurizer of high frequency conversion bucking voltage, it is made up of high frequency transformer (B), 2 LC filtering (L1C1, L2C2) circuit, 1 two-way full control electronic switch (S1), 3 two-way half control electronic switches (S2, S3, S4) and control triggering electric circuit thereof, 1 two-way full control electronic switch (S1) is made up of 2 full control devices and 2 rectifier diodes, and 3 two-way half control electronic switches (S2, S3, S4) are all made up of the thyristor of two reverse parallel connections.Carry out the alternating current steady voltage plug of the no industrial frequency transformer of regulation output alternating voltage with 2 the full control devices (V1, V2) in adjusting bidirectional electronic switch.No industrial frequency transformer three-phase ac regulated power supply.Be made up of 3 no industrial frequency transformer single phase alternating current (A.C.) stabilized voltage power supplys, method of attachment is star, and therefore, it is that three-phase and four-line is input, and three-phase and four-line is exported, and has the transless three-phase ac regulated power supply of public zero curve.

The AC voltage regulator of high frequency conversion bucking voltage of the present utility model, single-phase by high frequency transformer (B), 2 LC filtering (LLC1, L2C2) circuit, 1 two-way full control electronic switch (S1), 3 two-way half control electronic switch (S2, S3, S4) and control triggering electric circuit composition, two-way full control electronic switch (S1) is made up of 2 full control devices and 2 rectifying tubes, 3 two-way half control electronic switch (S2, S3, S4) all formed by the thyristor of two reverse parallel connections, it is characterized in that: high frequency transformer (B) armature winding, 1 two-way full control electronic switch (S1) and 1 two-way half control electronic switch (S2) and control triggering electric circuit composition cutting control AC voltage adjusting circuit thereof, 2 two-way half control electronic switch (S3, S4) the output bucking voltage step-down of composition high frequency transformer secondary winding and boost conversion, with the full control device V1 regulating in bidirectional electronic switch (S1), V2 cuts control make-to-break ratio, regulates the size of buck or boost compensation alternating voltage to reach output voltage stabilization, and AC voltage regulator has a public input, output (2), another ac input end (1) is connected with one end of filter inductance (L1), the centre tap of filter inductance (L1) other end (3) and high frequency transformer (B) secondary winding, one end of filter capacitor (C1), one end four ends of two-way full control electronic switch (S1) connect, one end of two-way full control electronic switch (S1) other end (4) and two-way half control electronic switch (S2), one end three ends of high frequency transformer (B) armature winding connect, two terminations (5 of high frequency transformer (B) secondary winding, 6) respectively with 2 two-way half control electronic switch (S3, S4) connect one end (7) of filter inductance (L2) and 2 two-way half control electronic switch (S3, S4) the other end three ends connect, output end of pressure-stabilizing (8) and filter inductance (L2) other end, one end three ends of filter capacitor (C2) connect, 2 filter capacitor (C1, C2) other end, two-way half control electronic switch (S1) other end, high frequency transformer (B) the armature winding other end and public input, output (2) connects, and composition single-phase high frequency becomes the single phase alternating current (A.C.) pressurizer of device bucking voltage.

The AC voltage regulator of the utility model three-phase high frequency conversion bucking voltage is made up of the AC voltage regulator of 3 identical single-phase high frequency conversion bucking voltages, 3 single phase alternating current (A.C.) pressurizers are by Y-connection, three-phase and four-line input, three-phase four money outputs, input and output have 1 public zero curve.

Four, appended drawings 1 is the single phase alternating current (A.C.) pressurizer main circuit schematic diagram of high frequency conversion bucking voltage of the present invention, astable alternating voltage, by the input of (1) and (2) end, stabilized single phase voltage is exported by (8) and (2).Accompanying drawing 2 is AC voltage regulator main circuit schematic diagrams of three-phase high frequency conversion bucking voltage of the present utility model, astable three-phase alternating-current supply, inputted by three-phase and four-line (A1, B1, C1, N), stablize three-phase voltage, exported by three-phase and four-line (A2, B2, C2, N), it can stable output three-phase 380V alternating voltage, also can export 3 220V single phase alternating current (A.C.) burning voltages that have public zero curve.

Five, the AC voltage regulator main circuit schematic diagram operation principle of the single-phase high frequency shown in specific implementation method accompanying drawing 1 conversion bucking voltage is as follows: cut control AC voltage adjusting circuit and be made up of high frequency transformer B, the two-way full control electronic switch S1 of master control and afterflow two-way half control electronic switch S2 and control triggering electric circuit thereof, 2 full control devices in the two-way full control electronic switch S1 of master control, V1 cuts control signal in the positive half cycle of power supply, and in power-half cycle, nothing is cut control signal; V2 cuts control signal in power-half cycle, and in the positive half cycle of power supply, nothing is cut control signal.2 thyristors in the two-way half control electronic switch of afterflow S2, V3 has DC trigger signal, Triggerless in power-half cycle in the whole positive half cycle of power supply; V4 is Triggerless in the whole positive half cycle of power supply, and has DC trigger signal in whole power-half cycle.V1 conduction period in the positive half cycle of power supply, high frequency transformer B armature winding flows to 2 ends by 4 ends, passes through thyristor V3 afterflow at the electric current of V1 blocking interval high frequency transformer B armature winding; V2 conduction period in power-half cycle, high frequency transformer B armature winding flows to 4 ends by 2 ends, passes through thyristor V4 afterflow at the electric current of V2 blocking interval high frequency transformer B armature winding.Therefore,, in the just output of the secondary winding two ends (5,6) of high frequency transformer (B) band centre tap (3), cut the sinusoidal wave voltage of being cut control voltage in control pressure regulation input two ends (3,2).Because secondary winding centre tap (3) is connected with input master control voltage end, therefore, 1) voltage between high frequency transformer secondary winding 6 ends and 2 ends is that input two ends (3,2) are superimposed upon above voltage and the pwm voltage of input single spin-echo, and this voltage just obtains than input two ends (3,2) the lowering and stabilizing blood pressure alternating voltage by V1, the adjusting of V2 control signal make-to-break ratio through two-way full control electronic switch S4, filter inductance L2 and filter capacitor C2 filtering at output two ends (8,2).2) voltage between high frequency transformer secondary winding 5 ends and 2 ends is that input two ends (3,2) are superimposed upon the pwm voltage identical with input phase place above voltage, and this voltage just obtains through two-way full control electronic switch S3, filter inductance L2 and filter capacitor C2 filtering the voltage stabilizing alternating voltage that boosts being regulated by V1, V2 control signal make-to-break ratio than input two ends (3,2) at output two ends (8,2).The Push And Release of two-way half control electronic switch S3 and S4 is by inputting two ends (1,2) voltage control, input voltage higher than require output voltage of voltage regulation value time, open S3 and close S4.Input voltage lower than require output voltage of voltage regulation value time, open S4 and close S3.Just can obtain at output two ends (8,2) object of AC voltage-stabilizing Voltage-output.

2 full control device V1, V2 and 2 rectifier diodes in two-way full control electronic switch S1 in the utility model accompanying drawing can be replaced with the two-way full control switch of known 4 rectifier diodes and 1 full control device composition, are also obviously to belong to the utility model protection range.For reducing the harmonic pollution of AC voltage regulator of the present utility model to electrical network, the utility model exchange input two ends be added in LC L1C1 filter, obviously without this filter also at the utility model protection range.

Fig. 2 is the AC voltage regulator main circuit schematic diagram of three-phase high frequency conversion bucking voltage of the present utility model, the three-phase AC voltage stabilizer that it is made up of by Y-connection mode the single phase alternating current (A.C.) pressurizer shown in 3 Fig. 1, astable three-phase alternating-current supply, inputted by three-phase and four-line (A1, B1, C1, N), stablize three-phase voltage, exported by three-phase and four-line (A2, B2, C2, N), it can stable output three-phase 380V alternating voltage, also can export 3 220V single phase alternating current (A.C.) burning voltages that have public zero curve.

The utility model is compared with the compensation type AC regulated power supply regulating with carbon brush, due to without carbon brush and regulate motor, therefore, good reliability, be swift in response, compared with Intelligent contactless alternating electromotive force stabilized voltage power supply, obviously can save the advantage of a lot of two-way exchange electronic switches and autotransformer tap And and output AC voltage continuous stepless, compare with " one is single-phase controls pressure regulation AC voltage regulator with compensation the cutting of three-phase " of same designer's design, there is the copper material of saving and iron material, little, the lightweight advantage of volume.Be the update new product of alternating current steady voltage plug, it has larger economic benefit and social benefit.

Claims (2)

1. the AC voltage regulator of high frequency conversion bucking voltage, single-phase by high frequency transformer (B), 2 LC filtering (L1C1, L2C2) circuit, 1 two-way full control electronic switch (S1), 3 two-way half control electronic switch (S2, S3, S4) and control triggering electric circuit composition, two-way full control electronic switch (S1) is made up of 2 full control devices and 2 rectifying tubes, 3 two-way half control electronic switch (S2, S3, S4) all formed by the thyristor of two reverse parallel connections, it is characterized in that: high frequency transformer (B) armature winding, 1 two-way full control electronic switch (S1) and 1 two-way half control electronic switch (S2) and control triggering electric circuit composition cutting control AC voltage adjusting circuit thereof, 2 two-way half control electronic switch (S3, S4) the output bucking voltage step-down of composition high frequency transformer secondary winding and boost conversion, with the full control device V1 regulating in bidirectional electronic switch (S1), V2 cuts control make-to-break ratio, regulates the size of buck or boost compensation alternating voltage to reach output voltage stabilization, and AC voltage regulator has a public input, output (2), another ac input end (1) is connected with one end of filter inductance (L1), the centre tap of filter inductance (L1) other end (3) and high frequency transformer (B) secondary winding, one end of filter capacitor (C1), one end four ends of two-way full control electronic switch (S1) connect, one end of two-way full control electronic switch (S1) other end (4) and two-way half control electronic switch (S2), one end three ends of high frequency transformer (B) armature winding connect, two terminations (5 of high frequency transformer (B) secondary winding, 6) respectively with 2 two-way half control electronic switch (S3, S4) connect one end (7) of filter inductance (L2) and 2 two-way half control electronic switch (S3, S4) the other end three ends connect, output end of pressure-stabilizing (8) and filter inductance (L2) other end, one end three ends of filter capacitor (C2) connect, 2 filter capacitor (C1, C2) other end, two-way half control electronic switch (S1) other end, high frequency transformer (B) the armature winding other end and public input, output (2) connects, and composition single-phase high frequency becomes the single phase alternating current (A.C.) pressurizer of device bucking voltage.

2. the AC voltage regulator of high frequency conversion bucking voltage according to claim 1, is characterized in that: 1 three-phase high frequency conversion compensation type ac voltage stabilizer of single phase alternating current (A.C.) pressurizer composition of 3 identical high frequency conversion bucking voltages that are connected in the form of star-connection.