CN202798474U - Three-phase thyristor power controller - Google Patents
Three-phase thyristor power controller Download PDFInfo
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- CN202798474U CN202798474U CN 201220521411 CN201220521411U CN202798474U CN 202798474 U CN202798474 U CN 202798474U CN 201220521411 CN201220521411 CN 201220521411 CN 201220521411 U CN201220521411 U CN 201220521411U CN 202798474 U CN202798474 U CN 202798474U
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Abstract
The utility model relates to a power controller, more specifically to a three-phase thyristor power controller which is interchangeable in output phase sequence. The three-phase thyristor power controller comprises a control panel and at least five groups of thyristor bridges, wherein each thyristor bridge is formed by reversely connecting two thyristors in parallel; each thyristor bridge is provided with an input end and an output end; and the control panel is electrically connected with each group of thyristor bridges respectively. According to the utility model, the phase-interchangeable three-phase thyristor power controller is adopted, and the phase interchanging can be performed on output voltage; and the phase interchanging time can be set according to utilization requirements, and the phenomenon of non-uniform heating of a three-phase load can be optimized. Therefore, the product quality is improved; an optimal effect which meets the production technology requirements is achieved; and the power controller has extremely high popularization and application values.
Description
Technical field
The utility model relates to power controller, more specifically to the tradable three-phase thyristor power controller of a kind of output phase sequence.
Background technology
The thyristor power controller also is SCR power regulator, thyristor regulating depressor or power regulating eqiupment.The thyristor power controller is divided into single-phase thyristor power controller, two-phase thyristor power controller and three-phase thyristor power controller from the phase place of control.Existing power controller generally speaking is divided into phase shifting control and zero passage control dual mode to the control of thyristor conducting state, namely controls the conducting state of thyristor by the α angle of control thyristor.
In industrial normal employing three-phase electricity power supply, load is threephase load.When adopting general three-phase thyristor power controller powering load, because electrical network is imperfect electrical network, certainly exist energy imbalance, A, B, C three-phase voltage value are unequal; Add that load is imperfect load, must also has energy imbalance, when laod unbalance, the phase place of three-phase electricity also can exert an influence to the actual power of every phase load.Therefore, adopt fixing phase place powering load, may cause heating inhomogeneous, finally affect the quality of product, cause percent defective high, be difficult to reach gratifying effect.
The utility model content
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art, carry out in the electrically heated application for general three-phase thyristor power controller, adopt fixing phase place powering load, cause heating inhomogeneous, thereby provide a kind of three-phase thyristor power controller that carries out the commutation power supply, to inhomogeneous being optimized of threephase load heating.
To achieve these goals, the technical solution adopted in the utility model is:
The three-phase thyristor power controller comprises control board and at least 5 group thyristor bridges, and described thyristor bridge is that two thyristor reverse parallel connections form, and described thyristor bridge is provided with input and output, and described control board is electrically connected with each group thyristor bridge respectively.
In the above-mentioned three-phase thyristor power controller, described three-phase thyristor power controller comprises control board and 5 groups of thyristor bridges, and described control board is electrically connected with each group thyristor bridge respectively.
In the above-mentioned three-phase thyristor power controller, described three-phase thyristor power controller comprises control board and 6 groups of thyristor bridges, and described control board is electrically connected with each group thyristor bridge respectively.
Three-phase thyristor power controller commutation control method, the three-phase thyristor power controller is used as the trigger impulse between different thyristor bridges by the different driving signal of control board output, and the conducting state of thyristor is respectively organized in control respectively.
In the above-mentioned three-phase thyristor power controller commutation control method, described three-phase thyristor power controller comprises control board and 5 groups of thyristor bridges, described thyristor bridge is that two thyristor reverse parallel connections form, described control board is electrically connected with each group thyristor bridge respectively, exports 5 groups of driving signals by control board and controls respectively the conducting state of respectively organizing thyristor bridge:
When (1) positive is exported, control the 1st, 3,5 group of thyristor bridge conducting, output phase sequentially is A`, B`, C`;
When (2) commutation is exported, control the 2nd, 3,4 group of thyristor bridge conducting, output phase sequentially is C`, B`, A`.
In the above-mentioned three-phase thyristor power controller commutation control method, described three-phase thyristor power controller comprises control board and 6 groups of thyristor bridges, described thyristor bridge is that two thyristor reverse parallel connections form, described control board is electrically connected with each group thyristor bridge respectively, exports 6 groups of driving signals by control board and controls respectively the conducting state of respectively organizing thyristor bridge:
When (1) positive is exported, control the 1st, 3,5 group of thyristor bridge conducting, output phase sequentially is A`, B`, C`;
When (2) commutation is exported, control the 2nd, 4,6 group of thyristor bridge conducting, output phase sequentially is C`, A`, B`.
Compared with prior art, the beneficial effects of the utility model:But the utility model adopts commutation three-phase thyristor power controller, can carry out commutation to output voltage, and can according to requirements be set the time of commutation, non-uniform phenomenon to the threephase load heating is optimized, thereby improve the quality of product, reach the optimum efficiency that adapts to the production technology demand, have high propagation and employment and be worth.
Description of drawings
Fig. 1 is the circuit connection diagram of the utility model embodiment 1.
Fig. 2 is thyristor bridge conducting schematic diagram when three-phase thyristor power controller positive is exported among Fig. 1.
Fig. 3 is thyristor bridge conducting schematic diagram during the anti-phase output of three-phase thyristor power controller among Fig. 1.
Fig. 4 is the circuit connection diagram of the utility model embodiment 2.
Fig. 5 is thyristor bridge conducting schematic diagram when three-phase thyristor power controller positive is exported among Fig. 3.
Fig. 6 is thyristor bridge conducting schematic diagram during the anti-phase output of three-phase thyristor power controller among Fig. 3.
Mark among the figure: 101-control board, first group of thyristor bridge of 1-, second group of thyristor bridge of 2-, the 3rd group of thyristor bridge of 3-, the 4th group of thyristor bridge of 4-, the 5th group of thyristor bridge of 5-, the 6th group of thyristor bridge of 6-.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Embodiment 1
As shown in Figure 1, the three-phase thyristor power controller of present embodiment comprises control board and 5 groups of thyristor bridges, described thyristor bridge is that two thyristor reverse parallel connections form, described control board is electrically connected with 5 groups of thyristor bridges respectively, export 5 groups of driving signals by control board and control respectively the conducting state of respectively organizing thyristor bridge, wherein the common input end of first group of thyristor bridge 1 and second group of thyristor bridge 2 connects the A phase voltage, the input termination B phase voltage of the 3rd group of thyristor bridge 3, the common input end of the 4th group of thyristor bridge 4 and the 5th group of thyristor bridge 5 connects the C phase voltage; Other first group of thyristor bridge 1 and the 4th group of thyristor bridge 4 have public output, can make the output voltage of public output according to the break-make of first group of thyristor bridge 1 or the 4th group of thyristor bridge 4 is A` or C` phase, in like manner second group of thyristor bridge 2 and the 5th group of thyristor bridge 5 also have public output, and output voltage can be A` or C` phase.
Three-phase thyristor power controller commutation control method, described three-phase thyristor power controller comprises control board and 5 groups of thyristor bridges, described thyristor bridge is that two thyristor reverse parallel connections form, described control board is electrically connected with 5 groups of thyristor bridges respectively, export 5 groups of driving signals by control board and control respectively the conducting state of respectively organizing thyristor bridge, namely the 1st group of driving signal is used for controlling first group of thyristor bridge 1, the 2nd group drives signal and is used for controlling second group of thyristor bridge 2, the 3rd group drives signal and is used for controlling the 3rd group of thyristor bridge 3, the 4th group of driving signal is used for controlling 4, the 5 groups of drivings of the 4th group of thyristor bridge signal and is used for controlling the 5th group of thyristor bridge 5:
(1) as shown in Figure 2, when three-phase thyristor power controller positive is exported, control board is exported 5 groups and is driven signal, described 5 groups to drive signals be to allow the 1st group, the driving signal of 3 groups, 5 groups thyristor bridge work and allow the 2nd group, the 4 groups idle driving signals of thyristor bridge, 5 groups drive signal and control respectively the 1st, 3,5 group of thyristor bridge conducting, 2nd, 4 groups of thyristor bridges disconnect, and make the output phase of three-phase thyristor power controller sequentially be A`, B`, C`;
(2) as shown in Figure 3, when the commutation of three-phase thyristor power controller is exported, control board is exported other 5 groups and is driven signal, described 5 groups to drive signals be to allow the 2nd group, the driving signal of 3 groups, 4 groups thyristor bridge work and allow the 1st group, the 5 groups idle driving signals of thyristor bridge, 5 groups drive signal and control respectively the 2nd, 3,4 group of thyristor bridge conducting, 1st, 5 groups of thyristor bridges disconnect, and make the output phase of three-phase thyristor power controller sequentially be C`, B`, A`.
Three-phase thyristor power controller commutation control method by present embodiment, can carry out commutation to output voltage, also positive output time and anti-phase output time can be set respectively, it is 2 minutes when the positive output time is set, the commutation output time is 1 minute, then the three-phase thyristor power controller moves 2 minutes by positive first, and then commutation moves 1 minutes, and carries out positive/commutation circular flow by the time of this setting.
When laod unbalance, utilize three-phase thyristor power controller commutation control method, make three-phase thyristor power controller positive/commutation circular flow, adopt the phase place powering load of conversion, make each load homogeneous heating, thereby improve the quality of product, reach the optimum efficiency that adapts to the production technology demand, have high propagation and employment and be worth.
As shown in Figure 4, the three-phase thyristor power controller of present embodiment comprises control board and 6 groups of thyristor bridges, described thyristor bridge is that two thyristor reverse parallel connections form, described control board is electrically connected with 6 groups of thyristor bridges respectively, exports 6 groups of driving signals by control board and controls respectively the conducting state of respectively organizing thyristor bridge.Wherein the common input end of first group of thyristor bridge 1 and second group of thyristor bridge 2 connects the A phase voltage, the input termination B phase voltage that the common input end of the 3rd group of thyristor bridge 3 and the 4th group of thyristor bridge 4 is, the common input end of the 5th group of thyristor bridge 5 and the 6th group of thyristor bridge 6 connects the C phase voltage; Other first group of thyristor bridge 1 and the 6th group of thyristor bridge 6 have public output, can make the output voltage of public output according to the break-make of first group of thyristor bridge 1 or the 6th group of thyristor bridge 6 is A` or C` phase, in like manner second group of thyristor bridge 2 and the 3rd group of thyristor bridge 3 also have public output, output voltage can be B` or A` phase, the 4th group of thyristor bridge 4 and the 5th group of thyristor bridge 5 also have public output, and output voltage can be C` or B` phase.
The three-phase thyristor power controller commutation control method of present embodiment, described three-phase thyristor power controller comprises control board and 6 groups of thyristor bridges, described thyristor bridge is that two thyristor reverse parallel connections form, described control board is electrically connected with 6 groups of thyristor bridges respectively, export 6 groups of driving signals by control board and control respectively the conducting state of respectively organizing thyristor bridge, namely the 1st group of driving signal is used for controlling first group of thyristor bridge 1, the 2nd group drives signal and is used for controlling second group of thyristor bridge 2, the 3rd group drives signal and is used for controlling the 3rd group of thyristor bridge 3, the 4th group drives signal and is used for controlling the 4th group of thyristor bridge 4, the 5th group of driving signal is used for controlling 5, the 6 groups of drivings of the 5th group of thyristor bridge signal and is used for controlling the 6th group of thyristor bridge 6:
(1) as shown in Figure 5, when three-phase thyristor power controller positive is exported, control board is exported 6 groups and is driven signal, described 6 groups to drive signals be to allow the 1st group, the driving signal of 3 groups, 5 groups thyristor bridge work and allow the 2nd group, 4 groups, the 6 groups idle driving signals of thyristor bridge, 6 groups drive signal and control respectively the 1st, 3,5 group of thyristor bridge conducting, 2nd, 4,6 groups of thyristor bridges disconnect, and make the output phase of three-phase thyristor power controller sequentially be A`, B`, C`;
(2) as shown in Figure 6, when the commutation of three-phase thyristor power controller is exported, control board is exported other 6 groups and is driven signal, described 6 groups to drive signals be to allow the 2nd group, the driving signal of 4 groups, 6 groups thyristor bridge work and allow the 1st group, 3 groups, the 5 groups idle driving signals of thyristor bridge, 6 groups drive signal and control respectively the 2nd, 4,6 group of thyristor bridge conducting, 1st, 3,5 groups of thyristor bridges disconnect, and make the output phase of three-phase thyristor power controller sequentially be C`, A`, B`.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (3)
1. three-phase thyristor power controller, it is characterized in that: comprise control board and at least 5 group thyristor bridges, described thyristor bridge is that two thyristor reverse parallel connections form, and described thyristor bridge is provided with input and output, and described control board is electrically connected with each group thyristor bridge respectively.
2. three-phase thyristor power controller according to claim 1, it is characterized in that: described three-phase thyristor power controller comprises control board and 5 groups of thyristor bridges, described control board is electrically connected with each group thyristor bridge respectively.
3. three-phase thyristor power controller according to claim 1, it is characterized in that: described three-phase thyristor power controller comprises control board and 6 groups of thyristor bridges, described control board is electrically connected with each group thyristor bridge respectively.
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| CN 201220521411 CN202798474U (en) | 2012-10-12 | 2012-10-12 | Three-phase thyristor power controller |
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| CN 201220521411 CN202798474U (en) | 2012-10-12 | 2012-10-12 | Three-phase thyristor power controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102843043A (en) * | 2012-10-12 | 2012-12-26 | 四川英杰电气股份有限公司 | Three-phase thyristor power controller and phase change control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102843043A (en) * | 2012-10-12 | 2012-12-26 | 四川英杰电气股份有限公司 | Three-phase thyristor power controller and phase change control method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20171012 |
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| CF01 | Termination of patent right due to non-payment of annual fee |