CN208955691U - The adjustment system of power module - Google Patents
The adjustment system of power module Download PDFInfo
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- CN208955691U CN208955691U CN201821664130.5U CN201821664130U CN208955691U CN 208955691 U CN208955691 U CN 208955691U CN 201821664130 U CN201821664130 U CN 201821664130U CN 208955691 U CN208955691 U CN 208955691U
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- power module
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- 239000004568 cement Substances 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Abstract
The utility model discloses a kind of adjustment systems of power module.Wherein, which includes: adjustment device, and the resistance value for adjusting device is in the first preset range；Power module, power module are connect with adjustment device, and power module is adjustment device power supply, wherein the output voltage of power module is adjusted to the second preset range.The Adjusted Option that the utility model solves power module in the prior art is unable to ensure the technical issues of each power module load balancing in DCS.
Description
Technical field
The utility model relates to industrial system low voltage electric power system technical fields, in particular to a kind of power module
Adjustment system.
Background technique
DCS (Distributed Control System, Distributed Control System) is using 24V power supply two-way while work at present
Make, every road is that multiple (3 or 6) form with the 220V/24V 40A power module of model.If 24V power supply when on-line operation
Module load is often unbalanced, and the AC input current of certain power modules is almost 0A (practical power has stopped exporting) sometimes,
And the AC input current of some power modules is close at full capacity, the electric current of other modules is also not quite similar.Such case is easily
Lead to power module failure at full capacity, influences the service life of power module.Meanwhile the case where if there is mono- road power loss of DCS,
It will lead to all power module loads in another way power cabinet to rise, exacerbate load unbalanced, the pole of each power module in cabinet
It is possible that power module overload protection occur and leading to entire DCS power loss, there is the considerable safety event of DCS failure.
To guarantee each power module safe and stable operation of DCS, it is necessary to assure the load of every power supply is roughly the same, in this way,
In the case where power loss all the way, the power module of another way can be worked normally all, and DCS power loss is avoided to happen.Adjustment electricity
When source module output voltage, usually power module output is got rid of one by one, and adjusts each module voltage to identical value, such as 26V,
After parallel running, internal resistance and load capacity of the meeting because of each power module are different, and it is load unbalanced must to will appear each power module
Phenomenon.As carried out on-line tuning again, and output voltage can be caused not adjust correctly due to the influence of other modules, module work
There is larger difference in electric current.
Asking for each power module load balancing in DCS is unable to ensure for the Adjusted Option of power module in the prior art
Topic, currently no effective solution has been proposed.
Utility model content
The utility model embodiment provides a kind of adjustment system of power module, at least to solve power supply in the prior art
The Adjusted Option of module is unable to ensure the technical issues of each power module load balancing in DCS.
According to the one aspect of the utility model embodiment, a kind of adjustment system of power module is provided, comprising: adjustment
Device, the resistance value for adjusting device are in the first preset range；Power module, power module are connect with adjustment device, power supply
Module is adjustment device power supply, wherein the output voltage of power module is adjusted to the second preset range.
Further, adjustment device includes: at least one resistance, wherein includes the case where multiple resistance in adjustment device
Under, multiple resistance are connected by the way of serial or parallel connection.
Further, adjustment device includes: first resistor, second resistance, 3rd resistor, the 4th resistance and the 5th resistance,
Wherein, first resistor, second resistance and 3rd resistor are connected in parallel, the 4th resistance and the connection of the 5th resistor coupled in parallel, after in parallel
First resistor, second resistance and 3rd resistor with it is in parallel after the 4th resistance and the 5th resistance be connected in series.
Further, resistance is cement resistor, and the power of cement resistor is greater than the first preset value.
Further, the first preset range is 24.5~25.5 Ω.
Further, the second preset range is 24.9~25.1V.
Further, multiple power modules adjusted constitute power circuit, and multiple power modules are connected in parallel, wherein
The output difference between currents of any two power module are less than the second preset value.
Further, the second preset value is 0.2A.
Further, multiple power modules adjusted constitute two power circuits, and two power circuits are connected in parallel, often
A power circuit includes: at least one power module, at least one power module is connected in parallel, wherein any two power supply mould
The output difference between currents of block are less than third preset value.
Further, third preset value is 0.3A.
In the utility model embodiment, it is connect by power module with adjustment device, and in the power module course of work
Middle progress output voltage adjustment, compared with prior art, Adjusted Option is simple, and parallel connection makes after all power module adjustment
With, each module load is not much different, and that there are voltages after avoiding former power module from adjusting is inconsistent, each module load is unbalanced, into
One step avoids causing part of module to be overloaded when single channel power module is load unbalanced, and DCS caused by remaining module load is higher is complete
Portion's power supply loses, to reach the failure rate for reducing power module, extends the service life of power module, it is anti-to promote unit
The technical effect of DCS power loss, failure performance, and then the Adjusted Option for solving power module in the prior art is unable to ensure DCS
In each power module load balancing the technical issues of.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
The exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the improper of the utility model
It limits.In the accompanying drawings:
Fig. 1 is the schematic diagram according to a kind of adjustment system of power module of the utility model embodiment；And
Fig. 2 is the schematic diagram according to the optional adjustment device of one kind of the utility model embodiment.
Specific embodiment
In order to make those skilled in the art better understand the scheme of the utility model, below in conjunction with the utility model reality
The attached drawing in example is applied, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the embodiment of the utility model a part, instead of all the embodiments.Based on the reality in the utility model
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts is all answered
When the range for belonging to the utility model protection.
It should be noted that the specification and claims of the utility model and term " first " in above-mentioned attached drawing,
" second " etc. is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that in this way
The data used are interchangeable under appropriate circumstances, so that the embodiments of the present invention described herein can be in addition at this
In illustrate or description those of other than sequence implement.In addition, term " includes " and " having " and their any deformation, meaning
It includes to be not necessarily limited to clearly arrange for example, containing a series of system of units, product or equipment that figure, which is to cover non-exclusive,
Those of out unit, but may include other units being not clearly listed or intrinsic for these products or equipment.
According to the utility model embodiment, a kind of embodiment of the adjustment system of power module is provided.
Fig. 1 be according to a kind of schematic diagram of the adjustment system of power module of the utility model embodiment, as shown in Figure 1,
The system includes: adjustment device 10 and power module 20.
Wherein, the resistance value for adjusting device 10 is in the first preset range；Power module 20 is connect with adjustment device, electricity
Source module is adjustment device power supply, and the output voltage of power module is adjusted to the second preset range.
Specifically, for power module in parallel in power circuit each in DCS, in order to ensure power module load is flat
Weighing apparatus, needs to individually adjust all power modules, therefore, can be with relatively light load required for each power module of pre-production
Adjustment device, the output end that will adjust device and power module connects, as the load of power module, thus each power supply mould
The independent bringing onto load operation of block, and the output voltage of each power module is adjusted to appropriate value.During the adjustment, can pass through
Multimeter can be with the output voltage of real-time detection power module, it is ensured that the accuracy rate of adjustment.
For the power module of different model, for example, 220VAC/24DC, 220VAC/12VDC, 220VAC/5VDC or its
The ac/dc power supply system of his voltage class, output voltage adjusted can be actually needed and be set, moreover, connection
The resistance value of adjustment device selected as needed.In the utility model embodiment, with the power supply mould of 220V/24V40A
For block, output voltage adjusted can be 25Vdc, moreover, needing in order to avoid power module parallel connection back loading is unbalanced
Ensure to be less than ± 0.1Vdc, therefore, the second above-mentioned preset range with the deviation of the output voltage of all power modules in all the way
It can be 24.9~25.1Vdc.In order to realize that the power module to 220V/24V 40A is adjusted, the electricity of device is adjusted
Corresponding first preset range of resistance value can be 24.5~25.5 Ω.Preferably, resistance value can be used to fill for the adjustment of 25 Ω
The output end of connection power module is set, and the output voltage of power module is adjusted to 25Vdc.
By the utility model above-described embodiment, it is connect by power module with adjustment device, and work in power module
Output voltage adjustment is carried out in the process, and compared with prior art, Adjusted Option is simple, in parallel after all power module adjustment
It using, each module load is not much different, and that there are voltages after avoiding former power module from adjusting is inconsistent, each module load is unbalanced,
It further avoids causing part of module to be overloaded when single channel power module is load unbalanced, DCS caused by remaining module load is higher
All power loses, to reach the failure rate for reducing power module, extends the service life of power module, it is anti-to promote unit
The technical effect of DCS power loss, failure performance, and then the Adjusted Option for solving power module in the prior art is unable to ensure DCS
In each power module load balancing the technical issues of.
Optionally, adjustment device includes: at least one resistance, wherein in the case where adjusting device includes multiple resistance,
Multiple resistance are connected by the way of serial or parallel connection.
Further, resistance is cement resistor, and the power of cement resistor is greater than the first preset value.
Specifically, resistance value, the maximum power of the adjustment device needed due to different electrical power module are different, and form and adjust
The resistance value of the resistance of engagement positions is different, therefore, can select the resistance of different number according to the actual situation, by series connection, simultaneously
The modes such as connection are attached, and under the premise of guaranteeing that any resistance does not damage, total resistance value are made to meet the first preset range.Example
Such as, when total resistance value is 25 Ω, if resistance value, the maximum power of single cement resistor can satisfy requirement, the cement
Resistance can be connect, the load as power module directly as adjustment device with the output end of power module.
Adjustment device can also be made of load forms such as cement resistor, power resistor, load box, electronic loads, this reality
It in new embodiment, is illustrated by taking cement resistor as an example, to reduce adjustment installation cost.
In a preferred solution, adjustment device include: first resistor, second resistance, 3rd resistor, the 4th resistance and
5th resistance, wherein first resistor, second resistance and 3rd resistor are connected in parallel, the 4th resistance and the connection of the 5th resistor coupled in parallel,
First resistor, second resistance and 3rd resistor after parallel connection with it is in parallel after the 4th resistance and the 5th resistance be connected in series.
Specifically, as shown in Fig. 2, adjustment device can be made of 5 cement resistors (R1, R2, R3, R4, R5), wherein three
A cement resistor (R1, R2, R3) is connected in parallel, and the cement resistor after being connected in parallel with other 2 resistance (R4, R5) is gone here and there
Connection, to obtain final adjustment device.
Optionally, multiple power modules adjusted constitute power circuit, and multiple power modules are connected in parallel, wherein appoint
Anticipate two power modules output difference between currents less than the second preset value.
Specifically, the second above-mentioned preset value can be 0.2A.It finishes with all power modules in all the way individually adjusting
Afterwards, it can be connected in parallel, and run simultaneously, close load switch, whether each unit module electric current is measured by clamp on amperemeter
Meet equilibrium, if conditions are not met, being finely adjusted again, so that each power module current deviation is less than ± 0.2A, that is, power module
Difference within 0.2A.
Optionally, multiple power modules adjusted constitute two power circuits, and two power circuits are connected in parallel, each
Power circuit includes: at least one power module, at least one power module is connected in parallel, wherein any two power module
Output difference between currents be less than third preset value.
Specifically, above-mentioned third preset value can be 0.3A.The road two-way power supply Zhong Mei power module is in the process of running
It after adjustment is balanced, can be run simultaneously with two-way power supply, and each unit module in two power cabinets is measured by clamp on amperemeter
Whether electric current meets equilibrium, if conditions are not met, being finely adjusted again, each power module current deviation is made to be less than ± 0.3A, that is,
The difference of power module is within 0.3A.
Preferably, it in a kind of preferred embodiment of the utility model, is illustrated by taking DC24V DC power supply as an example.Electricity
Source module is 25.3 Ω by the all-in resistance that multimeter measures adjustment device before being not powered on.After power module booting, lead to
The out-put supply of multimeter measurement power module is crossed, and voltage is adjusted to appropriate value, such as 25V, and all power modules must
It must individually adjust, can not adjust simultaneously.All power modules are connected in parallel, and in the process of running by the electric current of power module
Value adjustment is balanced, and meet DCS system uses electricity quality requirement.Furthermore, it is possible to which supply voltage, electric current adjustment are incorporated into maintenance text
In part packet, and carry out an acceptance inspection as H point.
It using the utility model above-described embodiment, has the advantages that and improves DCS power supply stability, reduce single service
When DCS power loss, failure risk；Output voltage adjustment, Adjusted Option letter can be realized in power module outlet connection adjustment device
It is single, extend the power module service life；Cement resistor, multimeter, clamp on amperemeter in adjustment system etc. are common device, and equipment is easy
Buying, it is at low cost.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (10)
1. a kind of adjustment system of power module characterized by comprising
Device is adjusted, the resistance value of the adjustment device is in the first preset range；
Power module, the power module are connect with the adjustment device, and the power module is adjustment device power supply,
In, the output voltage of the power module is adjusted to the second preset range.
2. system according to claim 1, which is characterized in that the adjustment device includes: at least one resistance, wherein
In the case where the adjustment device includes multiple resistance, the multiple resistance is connected by the way of serial or parallel connection.
3. system according to claim 2, which is characterized in that the adjustment device include: first resistor, second resistance,
3rd resistor, the 4th resistance and the 5th resistance, wherein the first resistor, the second resistance and the 3rd resistor are in parallel
Connection, the 4th resistance are connected with the 5th resistor coupled in parallel, the first resistor, the second resistance and the institute after parallel connection
State 3rd resistor with it is in parallel after the 4th resistance and the 5th resistance be connected in series.
4. system according to claim 2 or 3, which is characterized in that the resistance is cement resistor, the cement resistor
Power is greater than the first preset value.
5. system according to claim 1, which is characterized in that first preset range is 24.5~25.5 Ω.
6. system according to claim 1, which is characterized in that second preset range is 24.9~25.1V.
7. system according to claim 1, which is characterized in that multiple power modules adjusted constitute power circuit, institute
It states multiple power modules to be connected in parallel, wherein the output difference between currents of any two power module are less than the second preset value.
8. system according to claim 7, which is characterized in that second preset value is 0.2A.
9. system according to claim 1, which is characterized in that multiple power modules adjusted constitute two power supply electricity
Road, described two power circuits are connected in parallel, and each power circuit includes: at least one power module, at least one described electricity
Source module is connected in parallel, wherein the output difference between currents of any two power module are less than third preset value.
10. system according to claim 9, which is characterized in that the third preset value is 0.3A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821664130.5U CN208955691U (en) | 2018-10-12 | 2018-10-12 | The adjustment system of power module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821664130.5U CN208955691U (en) | 2018-10-12 | 2018-10-12 | The adjustment system of power module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208955691U true CN208955691U (en) | 2019-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821664130.5U Active CN208955691U (en) | 2018-10-12 | 2018-10-12 | The adjustment system of power module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208955691U (en) |
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2018
- 2018-10-12 CN CN201821664130.5U patent/CN208955691U/en active Active
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