CN2341278Y - Integrated phase shift controlling thyristor module with low controlling power consumption - Google Patents
Integrated phase shift controlling thyristor module with low controlling power consumption Download PDFInfo
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- CN2341278Y CN2341278Y CN 98248820 CN98248820U CN2341278Y CN 2341278 Y CN2341278 Y CN 2341278Y CN 98248820 CN98248820 CN 98248820 CN 98248820 U CN98248820 U CN 98248820U CN 2341278 Y CN2341278 Y CN 2341278Y
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- phase
- thyristor
- circuit
- control
- synchronizing signal
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Abstract
The utility model relates to an integrated phase shift controlling thyristor module with low controlling power consumption, comprising a set of synchronous signal acquiring circuit, a universal phase shift control circuit, a set of thyristor drive circuits and a thyristor main circuit. The utility model is characterized in that the synchronous signal acquiring circuit does not use a transformer, but uses a photon coupled isolator. The thyristor drive circuit is a photon coupled isolating type circuit with low power consumption. According to the full control or the half control of the main circuit, different synchronous signal sampling ending methods are adopted to realize the self-adaptation of the phase sequence input by the three-phase alternating current. The module has the characteristics that the inner side of the module has no transformer, the volume is small, the power of the required control power source is low (0.19w), and the module is not limited by the phase sequence and the phase number.
Description
The utility model relates to thyristor and circuits for triggering thereof, specifically, relates to and a kind ofly will hang down the control transformerless phase-shift trigger circuit of power consumption and the integrated dephasing thyristor module of thyristor rectifier be combined into.
Phase shift regulation and control thyristor variable streaming system has obtained extensive use in fields such as electric power, metallurgy, machinery, chemical industry, traffic.This converter system does not include complication system concerning the professional, but for the general user, set up the such converter system of a cover and is not easy.Making more people can use this converter system easily, is a solution with this system modular.Phase shift regulation and control thyristor variable streaming system mainly is made up of two parts, and a part is the thyristor rectifier part, can thyristor be connected into different topological structures by different needs; Another part is the phase-shift trigger circuit part, promptly change phase shifting angle the main circuit thyristor is triggered, thereby the voltage and current of control main circuit load reaches the purpose of unsteady flow.Circuits for triggering comprise circuit units such as synchronizing signal is obtained, phase shifting control, trigger impulse isolation drive again.Wherein, phase-shift control circuit has developed comparatively ripely, and integrated.As general phase-shift control circuit TC787 (list of references: Dong Yezhuan, the development of phase-control circuit TC787, TC788 and application, power electronic technology, 1994.3), a chip can be finished whole phase shifting control functions, complete control/half control is optional, and does not have number of phases requirement (be applicable to three-phase, two-phase and single phase circuit, but the work of three-phase circuit phase shortage).But synchronizing signal acquisition cuicuit and trigger impulse isolated drive circuit are continued to use the transformer isolation mode always, and volume of transformer is bigger, are modular obstacles; The conventional ADS driving circuit power consumption is bigger, and is also unfavorable to modularization; In addition, general phase-shift control circuit has the phase sequence requirement when being applied in three-phase circuit, do not have the phase sequence self-adaption ability.Find that through the Searches of Patent Literature notification number is that the patent of invention of CN1156345A also relates to phase shift regulation and control thyristor module, its circuits for triggering still adopt transformer type synchronizing signal sample circuit and transformer isolation formula thyristor driving circuit; Though transformer is microminiaturized, the manufacture craft of miniature transformer is complicated, cost is higher; And its circuits for triggering power consumption reaches 9.6W above (12V/0.8A comes from Zibo Linzi Galaxy High Technology Development Co., Ltd.'s product description, and this product adopts the manufacturing of CN1156345A technology just), and this is unfavorable to modularization.
In order to overcome the shortcoming of above-mentioned circuits for triggering, the purpose of this utility model combines a kind of novel, miniaturization, transformerless phase-shift trigger circuit for thyrictor with thyristor rectifier, a kind of integrated dephasing thyristor module of low control power consumption is provided.The phase-shift trigger circuit of this module has changed transformer type synchronizing signal acquisition cuicuit of the prior art and pulse transformer manifold type thyristor driving circuit, thereby not only solved the problem that synchronizing signal is isolated acquisition cuicuit and the miniaturization of thyristor isolated drive circuit, also solve the too big problem of phase-shift trigger circuit power consumption of module, improved the degree of miniaturization and the reliability of phase shift regulation and control thyristor modules.In addition, the utility model has also solved the problem of three-phase phase-shift control circuit phase sequence self-adaption.
The technical scheme that solves the utility model task is: integrated dephasing thyristor module contains a thyristor phase shift regulation and control main circuit, phase-shift trigger circuit for thyrictor and module housing.The topological structure of thyristor rectifier wherein can be three-phase, two-phase, single phase ac regulation circuit or the rectification circuit of full control, half control, and has one group of AC input terminal that is used to import power-frequency voltage to be used for exchanging or dc output end of thyristor rectifier phase shift regulation and control output with one group; Phase-shift trigger circuit for thyrictor wherein comprises one group of control terminal that is used to import control power supply and phase shifting control level, the one group of synchronizing signal acquisition cuicuit that can obtain synchronizing signal from power input terminals, general phase-shift control circuit and one group of thyristor trigger impulse isolated drive circuit that is used for just exporting multichannel thyristor phase shift trigger impulse according to synchronizing signal phase place and phase shifting control level.According to the utility model, described synchronizing signal acquisition cuicuit is without the synchrotrans of prior art, extract and isolate with optocoupler coupling, described thyristor trigger impulse isolated drive circuit is without the pulse transformer of prior art, and with the optocoupler isolation drive that is coupled.As shown in Figure 1, light-coupled isolation manifold type synchronizing signal acquisition cuicuit of the present utility model contains two two zero passages that are used for electrical isolation between phase-shift trigger circuit and the thyristor rectifier and extract power-frequency voltage respectively optocoupler O of (just → negative, negative → just) constantly
1, O
2, two comparator IC that are used for zero passage signal shaping constantly
1, IC
2With a trigger IC who is used for the zero cross signal after two shapings is combined into the synchronizing signal of a symmetry
3The former limit string of described optocoupler has the current-limiting resistance R of high value
1(hundreds of kilohm～several megohms); Between the output of described two comparators and the in-phase input end respectively and a capacitor C that is used to improve synchronizing signal acquisition cuicuit antijamming capability arranged
1, C
2As shown in Figure 2, thyristor trigger impulse isolated drive circuit of the present utility model contains an optocoupler O who is used for the electrical isolation between phase-shift trigger circuit and the thyristor rectifier and the trigger impulse that is coupled
8(optical controlled bidirectional thyrister output type), optocoupler O
8On optical controlled bidirectional thyrister, a current-limiting resistance R
13With a diode D
2Series arm and main circuit thyristor SCR
1Anode A and gate pole G parallel connection; As optocoupler O
8When being triggered conducting, this series arm plays and is major loop thyristor SCR
1Gate pole G the effect of drive current path is provided; Main circuit thyristor SCR
1Gate drive current by it not the forward voltage before the conducting provide, after its conducting, gate drive current drops to very low immediately, therefore the power consumption of whole drive circuit is very low; Diode D in the branch road
2Play and make optocoupler O
8On bidirectional thyristor can only unidirectional conducting effect, prevent because of optocoupler O
8Caused the thyristor SCR of this branch road by false triggering at the main circuit of correspondence
1Conducting when bearing reverse voltage.The function of three-phase phase-shift control circuit phase sequence self-adaption is achieved in that three tunnel synchronizing signal sampling ends of three-phase fully-controlled circuit are connected into △ shape, and three tunnel synchronizing signal sampling ends of three-phase half control circuit are connected into Y shape.
Compare with the phase shift regulation and control thyristor module of prior art, the utility model is not owing to had synchrotrans and pulse transformer, and therefore integrated degree is higher, more miniaturization, and the simpler cost of manufacturing process is lower; Because thyristor trigger impulse isolated drive circuit power consumption of the present utility model is very low, so the power of the required control power supply of module is very low, and (representative value: 12V/16mA 0.19W), only is equivalent to 1/50 of prior art products, and this has also improved the reliability of module; It is more convenient that three-phase phase-shift control circuit phase sequence self-adaption function is used module.
The utility model will be illustrated by its specific embodiments and the drawings subsequently.
Fig. 1 is the light-coupled isolation manifold type synchronizing signal acquisition cuicuit as the utility model feature;
Fig. 2 is the thyristor trigger impulse isolated drive circuit as the utility model feature;
Fig. 3 is a phase shift regulation and control three-phase thyristor bridge rectification thyristor module circuit of the present utility model;
Fig. 4 is a phase shift regulation and control three-phase half controlled bridge formula rectification thyristor module circuit of the present utility model;
Fig. 5 is that single-phase full-controlled bridge rectification thyristor module circuit is regulated and control in phase shift of the present utility model;
Fig. 6 is a phase shift regulation and control single-phase half-controlled bridge-type rectification thyristor module circuit of the present utility model;
Fig. 7 is that single-phase half-wave controlled rectification thyristor module circuit is regulated and control in phase shift of the present utility model;
Fig. 8 is a phase shift regulation and control three-phase fully-controlled AC voltage adjusting thyristor module circuit of the present utility model;
Fig. 9 is that phase shift regulation and control two-phase zero formula of the present utility model is controlled AC voltage adjusting thyristor module circuit entirely;
Figure 10 is that single-phase full control AC voltage adjusting thyristor module circuit is regulated and control in phase shift of the present utility model;
Referring to Fig. 3, this is an exemplary embodiments of the present utility model.Empty frame 1 among Fig. 3 is that three-phase synchronous signal is isolated acquisition cuicuit, contains the light-coupled isolation manifold type synchronizing signal acquisition cuicuit that three tunnel former limits connect by star-star-delta connection Y-Y-.The power frequency input voltage of main circuit is through resistance R
3, R
6, R
9Be input to optocoupler O after the current limliting
2～O
7Former limit, optical coupling secondary edges is comprised zero crossing of power-frequency voltage six signal waveforms constantly respectively, this waveform is delivered to trigger IC after the comparator shaping
4, IC
7, IC
10, trigger obtains three tunnel synchronizing signals after zero crossing is made up.Three-phase synchronous signal enters the general phase-shift control circuit shown in the empty frame 2 (with TC787A is example, and 6 pin of TC787A meet VCC, and control mode is full control), and phase-shift control circuit is exported six tunnel phase shift trigger impulses.Six tunnel phase shift trigger impulses are received the trigger impulse isolated drive circuit of empty frame 3, and then trigger the main circuit thyristor that is connected into the three-phase thyristor bridge rectification circuit of empty frame 4, finish phase shift regulation and control three-phase thyristor bridge rectification, the main circuit output dc voltage to the three-phase alternating current input voltage.Drive circuit end A in the circuit diagram?, K?, G? respectively with SCR? A, K, G extremely continuous, the power supply of module circuits for triggering employing+12V stabilized voltage power supply, the scope of input phase shifting control level VCON is 0～10V, inhibit pulse output when trigger impulse blocks end/EN input high level, the shell typical sizes of the module of output current 200A is 104*74*25mm
3, and the leeway of further miniaturization is arranged.
Referring to Fig. 8, this is another exemplary embodiments of the present utility model.The main distinction of it and Fig. 3 is: the main circuit thyristor is connected into three-phase ac voltage regulation circuit, the main circuit output AC voltage.
Fig. 4～Fig. 7 is other embodiment that main circuit is connected into rectification circuit, they are with the difference of Fig. 3: the current potential that different according to main circuit thyristor topological structure (comprise the number of phases, complete control/half control), the full control of the way difference of its synchronizing signal acquisition cuicuit, the way difference of trigger impulse isolated drive circuit, general phase-shift control circuit/half control are selected termination is difference also.Wherein Fig. 4 is a three-phase half control circuit, and its three tunnel synchronizing signal sampling ends are connected into Y shape, to realize the input AC phase sequence self-adaption.
Fig. 9, Figure 10 are other embodiment that main circuit is connected into AC voltage adjusting circuit, they are with the difference of Fig. 8: different according to main circuit thyristor topological structure (mainly being the number of phases), the way difference of its synchronizing signal acquisition cuicuit, the way of trigger impulse isolated drive circuit are also different.
Claims (3)
1. one kind low control power consumption integrated dephasing thyristor module contains a thyristor rectifier (4,5,6), a phase-shift trigger circuit for thyrictor (1,2,3,7) and module housing; The topological structure of thyristor rectifier wherein can be three-phase, two-phase, single phase ac regulation circuit or the rectification circuit of full control, half control, and has one group of AC input terminal (5) that is used to import power-frequency voltage to be used for exchanging or dc output end (6) of thyristor rectifier phase shift regulation and control output with one group; Phase-shift trigger circuit for thyrictor wherein comprises one group of control terminal (7) that is used to import control power supply and phase shifting control level, the one group of synchronizing signal acquisition cuicuit (1) that can obtain synchronizing signal from power input terminals (5), general phase-shift control circuit (2) and one group of thyristor trigger impulse isolated drive circuit (3) that is used for just exporting multichannel thyristor phase shift trigger impulse according to synchronizing signal phase place and phase shifting control level; It is characterized in that, described every road synchronizing signal acquisition cuicuit comprises two optocouplers, its former limit links to each other with AC input terminal by a resistance, its secondary is formed the loop with a resistance and a stabilized voltage power supply respectively, ohmically sampled signal connects the shaping comparator respectively, two comparator output terminals connect a rest-set flip-flop, trigger output synchronizing signal; Between the output of said comparator and the in-phase input end and an electric capacity that is used to improve synchronizing signal acquisition cuicuit antijamming capability arranged.
2. according to the low control power consumption integrated dephasing thyristor module of claim 1, it is characterized in that, described every road thyristor trigger impulse isolated drive circuit contains the optocoupler of an optical controlled bidirectional thyrister output type, its former limit links to each other with the pulse output end of phase-shift control circuit by a resistance, the optical controlled bidirectional thyrister of its secondary and a current-limiting resistance and a diode form series arm, this branch road is in parallel with the anode and the gate pole of main circuit thyristor, plays the effect that the drive current path is provided for the gate pole of major loop thyristor; Diode in the branch road plays the effect that the bidirectional thyristor that makes on the optocoupler can only unidirectional conducting.
3. according to the low control power consumption integrated dephasing thyristor module of claim 1, it is characterized in that, three tunnel synchronizing signal sampling ends of three-phase fully-controlled circuit are connected into △ shape, and three tunnel synchronizing signal sampling ends of three-phase half control circuit are connected into Y shape, and its function is to realize three-phase alternating current input phase sequence self-adaption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98248820 CN2341278Y (en) | 1998-11-26 | 1998-11-26 | Integrated phase shift controlling thyristor module with low controlling power consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98248820 CN2341278Y (en) | 1998-11-26 | 1998-11-26 | Integrated phase shift controlling thyristor module with low controlling power consumption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2341278Y true CN2341278Y (en) | 1999-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98248820 Expired - Fee Related CN2341278Y (en) | 1998-11-26 | 1998-11-26 | Integrated phase shift controlling thyristor module with low controlling power consumption |
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| Country | Link |
|---|---|
| CN (1) | CN2341278Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035359A (en) * | 2010-12-24 | 2011-04-27 | 上海追日电气有限公司 | High-voltage serial silicon controlled rectifier (SCR) control signal and energy transmission system |
| CN103209504A (en) * | 2013-03-22 | 2013-07-17 | 洛阳科诺工业设备有限公司 | Phase-control self-adapting control circuit of induction heating power supply and method |
| CN112563258A (en) * | 2020-12-11 | 2021-03-26 | 浙江华晶整流器有限公司 | Light-operated module |
-
1998
- 1998-11-26 CN CN 98248820 patent/CN2341278Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035359A (en) * | 2010-12-24 | 2011-04-27 | 上海追日电气有限公司 | High-voltage serial silicon controlled rectifier (SCR) control signal and energy transmission system |
| CN103209504A (en) * | 2013-03-22 | 2013-07-17 | 洛阳科诺工业设备有限公司 | Phase-control self-adapting control circuit of induction heating power supply and method |
| CN103209504B (en) * | 2013-03-22 | 2016-11-23 | 洛阳科诺工业设备有限公司 | A kind of induction heating power phased self-adapting type control circuit and method |
| CN112563258A (en) * | 2020-12-11 | 2021-03-26 | 浙江华晶整流器有限公司 | Light-operated module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |