CN105322806B

CN105322806B - Control AC voltage adjusting circuit is cut in paraphase

Info

Publication number: CN105322806B
Application number: CN201410356691.9A
Authority: CN
Inventors: 龚秋声
Original assignee: 龚秋声
Current assignee: Xuzhou yunzhitu Electronic Technology Co.,Ltd.
Priority date: 2014-07-15
Filing date: 2014-07-15
Publication date: 2017-12-15
Anticipated expiration: 2034-07-15
Also published as: CN105322806A

Abstract

Paraphase cuts control AC voltage adjusting circuit and belongs to Basic fundamentals of power electronics element circuit, it is by AC power, the inductive loads such as transformer, 2 two-way full control electronic switch (S1, S2), 2 bidirectional thyristor (S3, S4), 2 single-phase IGCT (V5, V6) and its triggers circuit forms, 2 two-way full control electronic switches are both paraphase output change-over switch, it is the two-way full control electronic switch of master control of cutting control AC voltage adjusting circuit again, it can be exported on the inductive loads such as transformer with phase or anti-phase adjustable voltage, therefore, it can be widely used for compensation type AC regulated power supply, can Jiang Shi costs, improve performance, for the equipment such as compensation type AC regulated power supply and product, to contactless, High Power Factor, high accuracy, the direction of stepless continuous regulation, which is developed, to contribute, with larger Social benefit and economic benefit.

Description

Control AC voltage adjusting circuit is cut in paraphase

[one] technical field is the present invention relates to cutting control AC voltage adjusting circuit, particularly with regard to inductive load, mixing The output voltage of device composition can cut control AC voltage adjusting circuit with paraphase.

[two] AC voltage adjusting circuit of the existing controllable devices composition of background technology only has two major classes：The first kind is using crystalline substance The phase control type ac regulating circuit of the half control such as brake tube device composition；Second class is formed using GTR, IGBT triode full-controlled device Cut control AC voltage adjusting circuit.The master control two-way switch and afterflow two-way switch in control AC voltage adjusting circuit are cut on existing textbook All it is that the asymmetry formed using triode and commutation diode cuts control AC voltage adjusting circuit, from Power Electronic Technique religion section of colleges and universities Understood in the books such as the Power Electronic Technique basis that book and China Machine Press publish, single-phase control AC voltage adjusting circuit of cutting only has three Kind circuit, their master switch are all to form , And with commutation diode using full-controlled device and exchanging with continued flow switch Applied in voltage-stabilized power supply.Same inventor invented in 2007 two kinds by full-controlled device and half control Qi Jian Group into mixing Device cuts control AC voltage-stabilizing regulating circuit (patent of invention number：200710137582.8), it is recognized that it is than full-controlled device on textbook Composition cuts the control more preferable circuit of AC voltage adjusting circuit --- and new to cut control AC voltage adjusting circuit, two kinds new to cut control regulating circuit All it is the circuit that hybrid device composition is unable to paraphase, is also all that circuit structure asymmetry cuts control AC voltage adjusting circuit, same invention People submits the symmetrical cutting control AC voltage adjusting circuit of application can not paraphase output adjustable voltage on the same day.

The regulating circuit of compensation type AC regulated power supply, it is desirable to, phase identical with mains frequency is compensated when civil power is low Also identical voltage, the voltage of opposite in phase identical with mains frequency is compensated when civil power is high, therefore, wants chopper-control friendship Stream regulating circuit is applied on a large scale in compensation type AC regulated power supply, it is necessary to which control AC voltage adjusting circuit output electricity is cut in breakthrough Pressure not only can pressure regulation, moreover it is possible to the cutting control AC voltage adjusting novel circuit of paraphase.

[three] content of the invention can be cut the invention aims to invent a kind of output AC voltage with the new of positive and negative paraphase Formula alternating current vehicle regulating circuit, to distinguish existing cutting control AC voltage adjusting circuit, it is referred to as that control AC voltage adjusting circuit is cut in paraphase.

Control AC voltage adjusting circuit is cut in the paraphase of the present invention, and it is by 2 ac input ends (1,2), inductive load, 2 by two The two-way full control electronic switch (S1, S2) of master control of pole pipe and triode composition, 2 bidirectional thyristors (S3, S4), 2 by unidirectional The two-way half control electronic switch (S5) of afterflow of IGCT (V5, V6) composition and its control circuit composition, the two-way full control electricity of 2 master controls Sub switch (S1, S2) is made up of 4 triodes (V1~V4) with damper diode (D1~D4), and afterflow bidirectional electronic is opened Closing (S5) is composed in parallel by 2 unidirectional thyristor (V5, V6) opposite directions, it is characterised in that：1st ac input end (1) with 1 Master control bidirectional electronic switch (S1) one end, 1 bidirectional thyristor (S3) one end three point attachment, the 2nd ac input end (2) and another 1 Individual master control bidirectional electronic switch (S2) one end, another 1 bidirectional thyristor (S4) one end three point attachment, the two-way full control electricity of 2 master controls Sub switch (the S1, S2) other end (3) and two-way half control electronic switch (S5) one end of afterflow, inductive load one end (3) four point attachment, 2 bidirectional thyristor (S3, S4) other ends (4) and two-way half control electronic switch (S5) other end of afterflow, the inductive load other end (4) four point attachment.

[four] the new control AC voltage adjusting circuit and symmetrical cut of appended drawings 1 (a) and (b) same inventor invention Cut control AC voltage adjusting circuit.Accompanying drawing 2 is that AC voltage adjusting circuit is cut in the paraphase of the present invention.

[five] embodiment is from accompanying drawing 1 (a) and (b)：Accompanying drawing 1 (b) is the innovation to accompanying drawing 1 (a), and it is It is that triode (V2) of 1 in accompanying drawing 1 (a) with damper diode (D2) is moved on into another 1 ac input end (B), makes electricity Road device architecture is changed into symmetrical from asymmetry, and can reduce the application for a patent for invention of a control line.

From accompanying drawing 2：Control AC voltage adjusting circuit is cut in paraphase, and it is by the phase inverter and chopper-control of bidirectional electronic switch Both AC voltage adjusting circuits are combined, by 2 bidirectional thyristor half control electronic switches in bidirectional electronic switch change into 2 it is two-way Full control electronic switch (S1, S2), the two-way full control electronic cutting of master control of the positive and negative direction in control AC voltage adjusting circuit is cut with them Close, circuit operation principle is as follows：

(a) when requiring to input 2 ends (1,2) voltage and the end of inductive load 2 (3,4) voltage in phase, to bidirectional thyristor (S4) positive and negative half cycle all adds trigger signal, does not give two-way brake tube (S3) trigger signal.When exchange input (1) end for just, (2) end During to bear, to unidirectional thyristor V5, entirely positive half cycle adds trigger signal, does not give unidirectional thyristor V6 trigger signals, positive half cycle exchange Copped wave and unidirectional brilliant lock of the electric current by triode V1, diode D2, the end of inductive load 2 (3,4) and two-way intergranular pipe S4 loops Pipe V5 afterflows, the end of inductive load 2 (3,4) export, the adjustable alternating voltage of positive half cycle through triode V1 copped waves.When exchange inputs It is timing to hold (1) to be held for negative, (2), adds trigger signal to the whole negative half periods of unidirectional thyristor V6, does not give unidirectional thyristor V5 to trigger Signal, negative half period alternating current are cut by two-way intergranular pipe S4, property load 2 ends (4,3), triode V2, diode D1 loops Ripple and unidirectional thyristor V6 afterflows, export in the end of inductive load 2 (4,3), the adjustable alternating current of negative half period through triode V2 copped waves Pressure.Therefore, when the end of ac input end 2 (1,2) input ac voltage, as long as by adjusting in 2 triode V1, V2 control poles Control signal make-to-break ratio, cut control alternating current with input 2 ends (1,2) same-phase on the end of inductive load 2 (3,4) with regard to that can adjust Pressure.

(b) when requiring to input 2 ends (1,2) voltage and the end of inductive load 2 (3,4) voltage inversion position, to bidirectional thyristor (S3) positive-negative half-cycle all adds trigger signal, does not give two-way brake tube (S4) trigger signal.When exchange input (1) end for just, (2) end be When negative, to unidirectional thyristor V6, entirely positive half cycle adds trigger signal, does not give unidirectional thyristor V5 trigger signals, positive half cycle alternating current Stream passes through bidirectional thyristor S3, the end of inductive load 2 (4,3), triode V4, the copped wave in diode D3 loops and unidirectional thyristor V6 Afterflow, the end of inductive load 2 (3,4) export, the adjustable alternating voltage of positive half cycle through triode V4 copped waves.Work as ac input end (1) it is timing for negative, (2) end, adds trigger signal to the whole negative half periods of unidirectional thyristor V5, does not trigger and believe to unidirectional thyristor V6 Number, negative half period alternating current passes through triode V3, diode D4, the end of inductive load 2 (copped wave in (3,4) loop and unidirectional brilliant lock Pipe V5 afterflows, the end of inductive load 2 (3,4) export, the adjustable alternating voltage of negative half period through triode V3 copped waves.Therefore, friendship is worked as During stream input 2 ends (1,2) input ac voltage, as long as by adjusting the control signal break-make in 2 triode V3, V4 control poles Than cutting control alternating voltage with input 2 ends (1,2) antiphase on the end of inductive load 2 (3,4) with regard to that can adjust.

The alternating voltage of the output of the present invention is AC chopping voltage, and it can just be obtained through high frequency LC filtering and input AC Mutually or anti-phase adjustable voltage, for compensation type AC regulated power supply, have that cost is low, power factor is high, have economical well Benefit.

Claims

1. control AC voltage adjusting circuit is cut in paraphase, it is by 2 ac input ends (1,2), inductive load, 2 by diode and three poles The two-way full control electronic switch (S1 and S2) of master control of pipe composition, 2 bidirectional thyristors (S3, S4), 2 by unidirectional thyristor (V5, V6) the two-way half control electronic switch (S5) of afterflow of composition and its control circuit composition, the two-way full control electronic switch of master control (S1 and S2) each it is made up of 2 triodes (V1, V2 and V3, V4) with damper diode (D1, D2 and D3, D4), afterflow is double To half control electronic switch (S5) composed in parallel by 2 unidirectional thyristor (V5, V6) opposite directions, it is characterised in that：1st exchange is defeated Enter end (1) full control electronic switch (S1) one end two-way with 1 master control, 1 bidirectional thyristor (S3) one end three point attachment, the 2nd hands over Flow input (2) full control electronic switch (S2) one end two-way with another 1 master control, 3 points of another 1 bidirectional thyristor (S4) one end company Connect, two-way full control electronic switch (the S1 and S2) other end (3) of 2 master controls and two-way half control electronic switch (S5) one end of afterflow, sense Property load one end four point attachment, 2 bidirectional thyristor (S3 and S4) other ends (4) are another with the two-way half control electronic switch (S5) of afterflow One end, inductive load other end four point attachment.