CN220894396U - Power supply filtering type voltage measuring device for wind power converter - Google Patents
Power supply filtering type voltage measuring device for wind power converter Download PDFInfo
- Publication number
- CN220894396U CN220894396U CN202321450921.9U CN202321450921U CN220894396U CN 220894396 U CN220894396 U CN 220894396U CN 202321450921 U CN202321450921 U CN 202321450921U CN 220894396 U CN220894396 U CN 220894396U
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- power supply
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- switching power
- current filter
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- 238000001914 filtration Methods 0.000 title claims abstract description 15
- 238000005070 sampling Methods 0.000 claims abstract description 25
- 238000005259 measurement Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 2
- 238000010248 power generation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model discloses a power supply filtering type voltage measuring device for a wind power converter, which belongs to the technical field of wind power generation, wherein a terminal strip is connected with a miniature circuit breaker through a first terminal, the miniature circuit breaker is connected with a first 24v switch power supply and a second 24v switch power supply through an alternating current filter, the first 24v switch power supply and the second 24v switch power supply are connected with a first direct current filter and a second direct current filter, the positive electrode of the first 24v switch power supply is connected with one group of corresponding quadruple terminals, the negative electrode of the second 24v switch power supply is connected with the other group of corresponding quadruple terminals, the positive electrode and the negative electrode of the first 24v switch power supply are connected with the positive electrode and the negative electrode of a corresponding voltage sensor, the negative electrode of the first 24v switch power supply is connected with a high-precision sampling resistor, and the two sides of the high-precision sampling resistor are respectively provided with an output end and a public end.
Description
Technical Field
The utility model relates to the technical field of wind power generation, in particular to a power supply filtering type voltage measuring device for a wind power converter.
Background
With the improvement of the voltage class of the wind power converter, the voltage at the machine grid side exceeds the maximum measuring range of the instrument in the prior art. The output signal of the existing high-voltage sensor is current, and the current sensor cannot be directly used for a voltage input type measuring instrument, so that other instruments are required to be purchased for use, and the cost is greatly increased.
Disclosure of utility model
The utility model aims to provide a power supply filtering type voltage measuring device for a wind power converter, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a power filter type voltage measurement device for wind-powered electricity generation converter, includes terminal row, miniature circuit breaker, alternating current filter, first 24v switching power supply, second 24v switching power supply, quadruple terminal, high accuracy sampling resistor and voltage sensor, the terminal row is connected miniature circuit breaker through first terminal, miniature circuit breaker passes through alternating current filter and is connected with first 24v switching power supply and second 24v switching power supply, first 24v switching power supply and second 24v switching power supply are connected with first direct current filter and second direct current filter, first 24v switching power supply positive pole is connected with the quadruple terminal of correspondence one set of, second 24v switching power supply negative pole is connected with the quadruple terminal of correspondence another set of, first 24v switching power supply and second 24v switching power supply positive and negative pole are connected with the positive pole and the negative pole of voltage sensor of correspondence, first 24v switching power supply negative pole is connected with high accuracy sampling resistor, the both sides of high accuracy sampling resistor are provided with output and public end respectively, through setting up the device component, with the single-phase voltage switch power supply positive pole and the quadruple terminal of correspondence, high accuracy of the voltage sensor is connected into the high-phase voltage sensor through the series of the voltage sensor, high-free switching power supply, high accuracy measurement device has the high-quality voltage measurement device to purchase the high-accuracy.
As a further scheme of the utility model: the first terminal is provided with a socket, so that connection between external wiring is facilitated.
As still further aspects of the utility model: the alternating current filter, the first direct current filter and the second direct current filter are respectively provided with a second connecting end and a first connecting end, so that connection between components is facilitated.
As still further aspects of the utility model: a second terminal is arranged between the alternating current filter and the second 24v switching power supply, a third terminal is arranged between the first 24v switching power supply and the second direct current filter, a fourth terminal is arranged between the quadruple terminal and the high-precision sampling resistor, and the quadruple terminal is convenient for forming a whole between components and is convenient for transmission between currents.
As still further aspects of the utility model: the right side of the high-precision sampling resistor is connected with a fifth terminal, so that the components can be matched with each other conveniently.
As still further aspects of the utility model: the terminal strip is arranged on the clamping groove, so that the fixing of the assembly is facilitated.
Compared with the prior art, the utility model has the beneficial effects that:
1. In the utility model, after a terminal strip is connected with a miniature circuit breaker, a single-phase electric connection terminal strip is used for supplying power to a first 24v switch power supply and a second 24v switch power supply through the circuit breaker, the two switch power supplies are connected together in a positive-negative mode, a direct-current filter device is used for forming a +/-24 v power supply, the positive electrode of one 24v switch power supply is connected with two inserted short-tab quadruple terminals, the negative electrode of the other 24v switch power supply is connected with the other group of two inserted short-tab quadruple terminals respectively, and the negative electrode of the voltage sensor is connected.
Drawings
FIG. 1 is a schematic diagram of a power supply filtering type voltage measuring device for a wind power converter;
FIG. 2 is a schematic diagram of a jack in a power supply filtering type voltage measuring device for a wind power converter;
FIG. 3 is a schematic diagram of an output port in a power supply filtering type voltage measurement device for a wind power converter according to the present utility model;
Fig. 4 is a schematic connection diagram of a voltage sensor in a power supply filtering type voltage measurement device for a wind power converter.
In the figure: 1. a clamping groove; 2. a terminal block; 3. a first terminal; 4. a miniature circuit breaker; 5. an alternating current filter; 6. a second terminal; 7. a third terminal; 8. a first 24v switching power supply; 9. a first direct current filter; 10. a quadruple terminal; 11. a fourth terminal; 12. a high-precision sampling resistor; 13. a fifth terminal; 14. a first connection end; 15. a second connection end; 16. a socket; 17. an output end; 18. a voltage sensor; 19. a negative electrode; 20. a positive electrode; 21. a public terminal; 22. a second 24v switching power supply; 23. a second DC filter;
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 4, in an embodiment of the present utility model, a power supply filtering voltage measurement device for a wind power converter includes a terminal block 2, a micro breaker 4, an ac filter 5, a first 24v switch power supply 8, a second 24v switch power supply 22, a quadruple terminal 10, a high precision sampling resistor 12 and a voltage sensor 18, the terminal block 2 is connected to the micro breaker 4 through a first terminal 3, the micro breaker 4 is connected to the first 24v switch power supply 8 and the second 24v switch power supply 22 through the ac filter 5, the first 24v switch power supply 8 and the second 24v switch power supply 22 are connected to a first dc filter 9 and a second dc filter 23, an anode of the first 24v switch power supply 8 is connected to one group of corresponding quadruple terminals 10, a cathode of the second 24v switch power supply 22 is connected to another group of corresponding quadruple terminals 10, the positive and negative poles of the first 24v switch power supply 8 and the second 24v switch power supply 22 are connected with the positive pole 20 and the negative pole 19 of the corresponding voltage sensor 18, the negative pole of the first 24v switch power supply 8 is connected with the high-precision sampling resistor 12, the two sides of the high-precision sampling resistor 12 are respectively provided with an output end 17 and a public end 21, when the device is used, after 220v single-phase electric access terminal row 2 is used, the first 24v switch power supply 8 and the second 24v switch power supply 22 are powered through the miniature circuit breaker 4 and the alternating current filter 5, one positive pole and one negative pole of the first 24v switch power supply 8 and the second 24v switch power supply 22 are connected together, a +/-24 v power supply is formed through the two first direct current filters 9 and the second direct current filter 23, the positive pole of the first 24v switch power supply 8 is connected with two inserted shorting-piece four-way terminals 10, the negative pole of the second 24v switch power supply 22 is connected with the other group of two inserted shorting-piece four-way terminals 10 respectively, the minus 24v of the six voltage sensors 18 are connected, and then the negative pole of the first 24v switching power supply 8, that is, the positive pole of the second 24v switching power supply 22, is connected as a common terminal to the terminals of the six welding high-precision sampling resistors 12. The other ends of the terminals of the six high-precision sampling resistors 12 are connected into output signal lines of the six voltage sensors 18, at the moment, the common end is used as a voltage input common end of an instrument, the other end output ends 17 of the six high-precision sampling resistors 12 are respectively used as output voltage signals of the network side AB\BC\CA and the machine side AB\BC\CA, and because alternating current and direct current filter loops exist, the power supply is stable, interference of output signals is not caused, all materials are self-contained in a factory, new instrument equipment does not need to be purchased, the precision is ensured, and the cost is greatly saved.
Wherein, be provided with socket 16 on the first terminal 3, the connection of external subassembly of being convenient for.
The alternating current filter 5, the first direct current filter 9 and the second direct current filter 23 are respectively provided with a second connecting end 15 and a first connecting end 14, so that the connection of components is facilitated; a second terminal 6 is arranged between the alternating current filter 5 and the second 24v switching power supply 22, a third terminal 7 is arranged between the first 24v switching power supply 8 and the second direct current filter 23, and a fourth terminal 11 is arranged between the quadruple terminal 10 and the high-precision sampling resistor 12, so that current output is facilitated; the right side of the high-precision sampling resistor 12 is connected with a fifth terminal 13, so that the high-precision sampling resistor is convenient to use in a matched manner; the terminal strip 2 is arranged on the clamping groove 1, so that the terminal strip is convenient to place;
The working principle of the utility model is as follows: after the single-phase electric connection terminal row 2 is connected to the micro breaker 4 to supply power to the first 24v switch power supply 8 and the second 24v switch power supply 22, the two switch power supplies are connected together in a positive-negative mode, the first direct current filter 9 and the second direct current filter 23 form a +/-24 v power supply, the positive electrode of the first 24v switch power supply 8 is connected to the two inserted short-circuit piece quadruple terminals 10, the positive electrodes of the second 24v switch power supply 22 are respectively connected to the positive electrodes of the voltage sensor 18, the negative electrodes of the second 24v switch power supply 22 are connected to the other group of two inserted short-circuit piece quadruple terminals 10, and then the negative electrodes of the first 24v switch power supply 8 are connected with the high-precision sampling resistor 12 as a common end, the other end of the terminal of the high-precision sampling resistor 12 is connected to the output signal line of the voltage sensor 18, the common end 21 is used as the voltage input common end of the instrument, the other end of the high-precision sampling resistor is used as the output voltage signal of the output end 17, the original assembly can be used for refitted and used through the setting device, the cost is reduced, and the operation is simple and convenient to use when the device is used.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The utility model provides a power filter formula voltage measurement device for wind-powered electricity generation converter, includes terminal strip (2), miniature circuit breaker (4), alternating current filter (5), first 24v switching power supply (8), second 24v switching power supply (22), quadruple terminal (10), high accuracy sampling resistor (12) and voltage sensor (18), its characterized in that: the miniature circuit breaker (4) is connected through first terminal (3) in terminal row (2), miniature circuit breaker (4) are connected with first 24v switching power supply (8) and second 24v switching power supply (22) through alternating current filter (5), first 24v switching power supply (8) and second 24v switching power supply (22) are connected with first direct current filter (9) and second direct current filter (23), first 24v switching power supply (8) positive pole is connected with a set of quadruple terminal (10) that corresponds, second 24v switching power supply (22) negative pole is connected with another set of quadruple terminal (10) that corresponds, first 24v switching power supply (8) and second 24v switching power supply (22) positive pole (20) and negative pole (19) of voltage sensor (18) that correspond, first 24v switching power supply (8) negative pole is connected with high accuracy sampling resistor (12), both sides of high accuracy sampling resistor (12) are provided with output (17) and public end (21) respectively.
2. The power supply filtering type voltage measuring device for a wind power converter according to claim 1, wherein: a socket (16) is arranged on the first terminal (3).
3. The power supply filtering type voltage measuring device for a wind power converter according to claim 1, wherein: the alternating current filter (5), the first direct current filter (9) and the second direct current filter (23) are respectively provided with a second connecting end (15) and a first connecting end (14).
4. The power supply filtering type voltage measuring device for a wind power converter according to claim 1, wherein: a second terminal (6) is arranged between the alternating current filter (5) and the second 24v switching power supply (22), a third terminal (7) is arranged between the first 24v switching power supply (8) and the second direct current filter (23), and a fourth terminal (11) is arranged between the quadruple terminal (10) and the high-precision sampling resistor (12).
5. The power supply filtering type voltage measuring device for a wind power converter according to claim 1, wherein: the right side of the high-precision sampling resistor (12) is connected with a fifth terminal (13).
6. The power supply filtering type voltage measuring device for a wind power converter according to claim 1, wherein: the terminal strip (2) is arranged on the clamping groove (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321450921.9U CN220894396U (en) | 2023-06-08 | 2023-06-08 | Power supply filtering type voltage measuring device for wind power converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321450921.9U CN220894396U (en) | 2023-06-08 | 2023-06-08 | Power supply filtering type voltage measuring device for wind power converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220894396U true CN220894396U (en) | 2024-05-03 |
Family
ID=90880317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321450921.9U Active CN220894396U (en) | 2023-06-08 | 2023-06-08 | Power supply filtering type voltage measuring device for wind power converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220894396U (en) |
-
2023
- 2023-06-08 CN CN202321450921.9U patent/CN220894396U/en active Active
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