CN210430373U - Monitoring device for monitoring length of carbon brush in real time, carbon brush comprising monitoring device and wind turbine generator set - Google Patents
Monitoring device for monitoring length of carbon brush in real time, carbon brush comprising monitoring device and wind turbine generator set Download PDFInfo
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- CN210430373U CN210430373U CN201921462465.3U CN201921462465U CN210430373U CN 210430373 U CN210430373 U CN 210430373U CN 201921462465 U CN201921462465 U CN 201921462465U CN 210430373 U CN210430373 U CN 210430373U
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Abstract
The utility model discloses a monitoring method for monitoring the length of a carbon brush of a wind turbine generator in real time and a device comprising the same, which comprises a mounting plate, wherein the mounting plate is used for being fixed on a brush holder of the carbon brush, and one side of the mounting plate is provided with a conductive bar which can conduct electricity; the movable contact seat is provided with a conductive block with a contact, the contact on the conductive block is in contact connection with the conductive bar, and the other side of the movable contact seat is used for being fixedly connected with a hook at the tail part of the carbon brush and moving synchronously with the carbon brush; the logic circuit is respectively connected with two ends of the conductive bar, built-in modules for applying direct current voltage to the two ends of the conductive bar are arranged in the logic circuit, the conductive block is connected with one end of the conductive bar through the built-in modules, and a voltage ratio operation module is further arranged in the logic circuit. The utility model discloses a slidingtype carbon brush position sensing device replaces single-point limit switch, and along with carbon brush wearing and tearing movable contact moves on leading the electrical drainage and arouses the test voltage change, utilizes the length of voltage ratio calculation carbon brush, realizes the real time monitoring to carbon brush length.
Description
Technical Field
The utility model relates to a wind turbine generator system field especially relates to a monitoring devices and carbon brush and wind turbine generator system including it that is used for taking the aerogenerator real-time supervision carbon brush length of collecting ring carbon brush or ground connection carbon brush.
Background
At present, the length of the carbon brush of the generator is monitored by the following main methods: the limit switch is installed on the brush holder, the hook is installed at the tail of the carbon brush, when the carbon brush is worn to a certain degree, the hook at the tail of the carbon brush triggers the limit switch, and the main control system is alarmed through signals of the limit switch to inform the wear condition of the carbon brush.
The wind turbine generator system has a severe operating environment, the generator is comprehensively affected by various uncertain factors and environmental conditions in the operating process, the wear conditions of the carbon brushes are different, and the wear lengths of the carbon brushes are different even if the carbon brushes on the same phase of the collecting ring are different in actual operation. Under some severe working conditions, because the unit is shut down for a long time, when the environmental humidity is large, carbon powder generated by carbon brush abrasion is attached to a gap between the carbon brush and the brush holder, and caking is easy to occur, so that the carbon brush is blocked.
Because traditional induction type position detection device is bulky, can't install in narrow collecting ring indoor, and require to service environment higher moreover, the carbon dust that the carbon brush wearing and tearing produced very easily leads to the sensor trouble.
The existing carbon brush monitoring device only sends out an alarm when the carbon brush is worn to the extent that the carbon brush needs to be replaced, and the actual residual length of the carbon brush in the wearing process cannot be monitored in real time.
Due to the defect, the carbon brush abrasion abnormality in the running process of the generator is caused, and the carbon brush abrasion abnormality cannot be fed back to the main control system in time; when the carbon brush is abnormally affected by other generator components to trigger an alarm, the fault range is often expanded, and other components are damaged.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a simple structure, can realize reaching carbon brush and wind generating set including its monitoring devices of carbon brush length real time monitoring's real-time supervision carbon brush length.
In order to solve the technical problem, the utility model provides a technical scheme as follows:
in one aspect, the utility model provides a monitoring devices of real-time supervision carbon brush length, include:
the mounting plate is made of insulating materials and is used for being fixed on a brush holder of the carbon brush, and one side of the mounting plate is provided with a conductive bar capable of conducting electricity;
the movable contact seat is provided with a conductive block with a contact, the conductive block is made of conductive materials, the contact on the conductive block is in contact connection with the conductive bar, and the other side of the movable contact seat is used for being fixedly connected with a hook at the tail part of the carbon brush and moving synchronously with the carbon brush, so that the contact of the conductive block slides on the conductive block in a contact manner;
the logic circuit is respectively connected with two ends of the conductive bar, a built-in module used for applying direct current voltage to the two ends of the conductive bar is arranged in the logic circuit, the conductive block is connected with one end of the conductive bar through the built-in module and is electrified with the direct current voltage, the voltage of the conductive block and the end of the conductive bar connected with the conductive block is changed voltage, and a voltage ratio operation module used for obtaining the voltage ratio of the changed voltage to the total voltage of the two ends of the conductive bar is also arranged in the logic circuit.
Further, the logic circuit calculates the remaining length of the carbon brush according to the product of the voltage ratio and the original length of the carbon brush.
Furthermore, the two ends of the conductive bar are respectively an end A and an end B, the conductive block is a point C, the end A corresponds to the original length of the carbon brush, the end B corresponds to the length of the carbon brush to be replaced, and the end B is connected with the point C through a built-in module.
Furthermore, the contact is in a hemispherical shape, so that the contact is in contact connection with the conductive bar through a hemispherical spherical contact.
Further, the logic circuit is used for being connected with a main control system of the wind turbine generator, and the logic circuit calculates the real-time length of the carbon brush and sends a signal to the main control system.
Furthermore, the two ends of the conductive bar and the conductive blocks are respectively connected with the logic circuit through wires, and the movable contact seat is provided with a threading hole for the wires to pass through.
Furthermore, a fixing clamp for fixedly connecting the hook at the tail part of the carbon brush is arranged on the movable contact seat.
Furthermore, the conductive bar, the contact and the conductive block are made of the same conductive material.
Further, the outer portions of the mounting plate and the moving contact base are further provided with outer shells, the mounting plate is fixedly mounted in a cavity of the outer shell, a groove used for moving a hook at the tail of the carbon brush is formed in one side, facing the carbon brush, of the outer shell, the hook at the tail of the carbon brush stretches into the groove of the outer shell and is fixedly connected with the moving contact base in the cavity, the moving contact base is located along with the hook at the tail of the carbon brush in the cavity of the outer shell and moves relative to the mounting plate, the outer shell is used for being fixedly mounted on the brush holder, wire outlet holes are formed in the outer shell, and the.
On the other hand, the carbon brush comprises the monitoring device for monitoring the length of the carbon brush in real time, the mounting plate is fixedly connected with a brush holder of the carbon brush, and the movable contact seat is fixedly connected with a hook at the tail part of the carbon brush and moves synchronously with the carbon brush.
On the other hand, the wind turbine generator system comprises a main control system, a carbon brush, a brush holder and a monitoring device, wherein the brush holder is used for being installed with the carbon brush, the monitoring device is used for monitoring the length of the carbon brush in real time, the mounting plate is fixedly connected with the brush holder, the movable contact seat is fixedly connected with a hook at the tail part of the carbon brush and moves synchronously with the carbon brush, and the main control system is connected with a logic circuit and is used for monitoring the real-time length of the carbon brush calculated by the logic circuit in real time.
Furthermore, the system comprises a plurality of carbon brushes, each carbon brush is provided with an independent monitoring device for monitoring the length of the carbon brush in real time, and the main control system judges the running state of the wind turbine generator according to the monitoring length of each carbon brush.
After adopting such design, the utility model discloses following advantage has at least:
(1) the utility model discloses a to current wind-powered electricity generation trade carbon brush alarm device defect, proposed and replaced current single-point limit switch with slidingtype carbon brush position sensing device, adopted the mode that movable contact, conductive row combine, be equipped with simple logic comparison circuit, along with carbon brush wearing and tearing movable contact moves on conductive row and arouses the test voltage change, the length of carbon brush is calculated through the ratio of test voltage and total voltage, realizes the real time monitoring to carbon brush length.
(2) The utility model discloses the preferred mode that adopts the contact to remove, electrically conduct to arrange to combine through test real-time voltage, the stage length of judgement carbon brush that can be accurate, quick.
(3) The utility model discloses still can be to the demand of aerogenerator carbon brush state monitoring, through designing independent carbon brush position sensing device, realize the real time monitoring to carbon brush length. Through the carbon brush length monitoring device, the main control system can obtain the remaining length of each carbon brush. When the remaining length of one or a plurality of carbon brushes is different from the remaining carbon brushes, the potential faults of the carbon brushes or the collector rings and other parts can be indicated in the running process of the generator, so that maintenance personnel can conveniently find out the potential faults in advance according to the states of the carbon brushes, and the fault range is prevented from being expanded to other key parts to cause the unit to stop.
(4) The utility model is not only simple in structure, easily operation, the reliability is high.
Drawings
The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clear, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
Fig. 1 is a schematic structural view of a monitoring device for monitoring the length of a carbon brush in real time according to the present invention, which is mounted on a brush holder;
fig. 2 is a schematic view of a connection structure of the monitoring device for monitoring the length of the carbon brush in real time according to the present invention, which is mounted on the brush holder;
fig. 3 is a schematic side view of the monitoring device for monitoring the length of the carbon brush in real time according to the present invention, which is mounted on the brush holder;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
fig. 5 is an enlarged view at I of fig. 4.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The utility model provides an embodiment of a monitoring device for monitoring the length of a carbon brush in real time, as shown in fig. 1 to 5, the monitoring device comprises a mounting plate 42 and a moving contact base 45 which are made of insulating materials, wherein the mounting plate 42 is used for being fixed on a brush holder 1 of the carbon brush, one side of the mounting plate 42 is provided with a conductive bar 43 which can conduct electricity, and two ends of the conductive bar 43 are connected with a built-in module of a logic circuit 8 and apply direct current voltage through the built-in module as total voltage; the movable contact seat 45 is provided with a conductive block 44 with a contact 441, the contact 441 on the conductive block 44 can be in contact connection with the conductive bar 43, and the other side of the movable contact seat 45 is used for being fixedly connected with the hook 2 at the tail part of the carbon brush and moving synchronously with the carbon brush 3, so that the contact of the conductive block slides on the conductive block in a contact manner; the conductive block 44 is made of a conductive material and is connected with one end of the conductive bar 43 through a built-in module, the voltage of the conductive bar end connected with the conductive block is a variable voltage and is connected with a voltage ratio operation module in the logic circuit 8, so that the voltage ratio of the variable voltage to the total voltage can be directly obtained, and the logic circuit 8 calculates the real-time length of the carbon brush according to the voltage ratio multiplied by the original length of the carbon brush.
The utility model discloses when using, fix the carbon brush on the brush holder, install mounting panel (or take the shell with it) on the brush holder in the position of the original installation limit switch of brush holder, brush holder and mounting panel fixed connection, remove seat and carbon brush afterbody couple fixed connection, logic circuit respectively with lead electrical drainage both ends and contact connection, lead electrical drainage both ends and be A end, B end respectively, the contact is the C point, apply a direct current test voltage U at leading electrical drainage A, B both endsABAnd measuring the voltage U between the moving contact C point and the conducting bar B point (or A point)BC(or U)AC). By comparing UBC(or U)AB-UAC) And UABThe residual length S of the carbon brush is calculated according to the measured value, and the specific working principle is as follows:
1) the carbon brush moves downwards along the brush holder under the action of the constant pressure spring and is normally worn.
2) The hook at the tail part of the carbon brush moves along with the carbon brush at the same speed and in the same direction and drives the movable contact seat to move synchronously, so that the length state of the carbon brush is transmitted to the carbon brush length monitoring device.
3) After the new carbon brush is installed, in the initial state, the moving contact C point is superposed with the conducting bar A point, and U point is superposed with the conducting bar A pointBC＝UABThe remaining length S ═ L × (U) of the carbon brushBC/UAB) And the logic circuit judges that the carbon brush is in the original length L.
4) As the carbon brush is worn away,the moving contact is driven to move downwards, and the length residual quantity S of the carbon brush measured by the logic circuit in real time is L (U)BC/UAB) And feeding back the measurement result to the master control system in real time. Wherein the S value decreases gradually from L.
5) When the moving contact C point moves to the position coinciding with the conducting bar B point, S is 0, the logic circuit sends the judgment result to the main control system, and simultaneously sends an alarm signal to the main control system to inform that the carbon brush is abraded to the extent needing to be replaced.
The utility model discloses a monitoring devices of real time monitoring carbon brush length carries out the real time monitoring of carbon brush length through the mode that the movable contact combines with the conductive row, can conveniently calculate carbon brush length surplus, convenient timely feedback.
The point C of the conductive block moves synchronously with the wear of the carbon brush on the conductive bar, and the remaining length of the carbon brush can be calculated by testing the voltage between the AC and BC, preferably, two ends of the conductive bar 43 are the end a and the end B, respectively, the conductive block 44 is the point C, the end a corresponds to the original length of the carbon brush 3, and the end B corresponds to the length of the carbon brush 3 to be replaced. The remaining length of carbon brush is L × (U)BC/UAB) And L is the original length L of the carbon brush. Because the voltage ratio between the voltage between BC and the voltage between AB can be obtained in real time through the voltage comparison function of the logic circuit, the residual length of the carbon brush can be accurately calculated, so that real-time monitoring is realized, and the method is visual and clear.
Further, the shape of the contact 441 is a hemisphere, so that the contact 441 is in contact connection with the conductive bar 43 through a hemispherical spherical contact. The hemispherical spherical contact is point contact, the contact conduction time is point contact, the voltage test is more accurate, and the calculation is more accurate.
In order to judge the remaining length of the carbon brush more intelligently, further, the logic circuit 8 is used for being connected with a main control system of the wind turbine generator, the logic circuit 8 judges the real-time length of the carbon brush 3 according to the ratio of the variation voltage to the total voltage multiplied by the original length of the carbon brush and sends a signal to the main control system, and the signal is fed back to the main control system of the wind turbine generator in time, so that the main control system can make more accurate judgments conveniently.
Furthermore, two ends of the conductive bar 43 and the conductive block 44 are respectively connected to the logic circuit 8 through wires 46, and the movable contact base 45 is provided with a threading hole for the wires 46 to pass through.
In order to connect the hook at the tail of the carbon brush conveniently, the moving contact base 45 is provided with a fixing clip for fixedly connecting the hook 2 at the tail of the carbon brush.
In order to play a role in protection, fixation and support, the outer shell 41 is further arranged outside the mounting plate 42 and the moving contact base 45, the mounting plate 42 is fixedly mounted in a cavity of the outer shell 41, a groove for moving the carbon brush tail hook 2 is formed in one side, facing the carbon brush 3, of the outer shell 41, the carbon brush tail hook 2 extends into the groove of the outer shell 41 and is fixedly connected with the moving contact base 45 in the cavity, the moving contact base 45 moves relative to the mounting plate 42 in the cavity of the outer shell 41 along with the carbon brush tail hook 2, the outer shell 41 is fixedly mounted on the brush holder 1, a wire outlet is formed in the outer shell 41, and the outer shell 41 is.
The conductive bar, the contact, the conductive block, and the like may be made of a conductive material, preferably copper, and may be made of a metal conductive material, and the shape of the conductive bar is preferably rectangular. The same conductive material is preferably used for the conductive bar, the contact and the conductive block, so that the voltage monitoring is more accurate, the residual length of the carbon brush monitored in real time is more accurate, and the guidance is better.
The utility model discloses an installation mode does: the carbon brush length monitoring device 4 is fixed by a bolt 5, a washer 6 and a nut 7 at the position where the limit switch is originally installed on the brush holder 1. After the carbon brush 3 is installed in the brush holder 1, the hook 2 at the tail part of the carbon brush extends into the groove of the carbon brush length monitoring device 4.
The utility model discloses in, according to actual conditions, ann shines 3 total length L of carbon brush monitored and sets up conducting bar length AB to satisfy the monitoring demand, if length AB and total length L can the correctable calculate carbon brush length when not matching.
The structure of the carbon brush length monitoring device of the utility model is shown as the attached figure 2
1) The housing 41 is used to fix the carbon brush length monitoring device 4 to the brush holder 1.
2) One side of the shell 41 facing the carbon brush 3 is provided with a groove, and the width of the groove is larger than that of the hook 2 at the tail part of the carbon brush, so that the hook 2 at the tail part of the carbon brush can not contact with the shell 41 to shield when moving downwards along with the carbon brush 3.
3) The lower part of the shell 41, which faces away from the carbon brush 3, is provided with a wire outlet, and the wires inside the whole device are converged into a multi-core cable wire 46 and then led to a logic circuit.
4) The conductive bar mounting plate 42 is made of insulating material and fixed to the housing 41, the specific length and thickness are determined according to the length of the conductive bar 43, and both ends A, B of the conductive bar 43 are provided with wires for connecting to a logic circuit.
5) The conductive bar 43 is made of conductive metal, preferably copper; the shape is preferably rectangular.
6) The movable contact 44 is made of a conductive metal block with contacts made of the same material as the conductive bars, and the contacts are preferably hemispherical in shape.
7) The movable contact 44 is embedded in the movable contact block 45 and contacts with the conductive bar 43.
8) The contact seat 45 is made of insulating material, and one end of the contact seat is provided with a groove for matching with the moving contact 43; the other end is provided with a fixing clamp for connecting with the hook 2 at the tail part of the carbon brush.
9) The contact block 45 is provided with small holes for passing through and fixedly connecting the movable contacts 44 with the wires of the logic circuit.
10) Logic for connecting the conductors, the module of which applies a DC test voltage U across the conductor bar A, BABApplying a DC test voltage U between the contact C and the conductive bar BBC. By logic circuit internal pairs UBCAnd UABThe remaining length S of the carbon brush 2 is calculated by measuring the ratio of (a).
On the other hand, a carbon brush 3 is provided, which comprises the monitoring device 4 for monitoring the length of the carbon brush in real time, wherein the mounting plate 42 is fixedly connected with the brush holder 1 of the carbon brush, and the movable contact base 45 is fixedly connected with the hook 2 at the tail part of the carbon brush 3 and moves synchronously with the carbon brush 3.
On the other hand, the wind turbine generator set comprises a main control system, a carbon brush 3, a brush holder 1 used for installing the carbon brush 3, and a monitoring device 4 used for monitoring the length of the carbon brush in real time, wherein the mounting plate 42 is fixedly connected with the brush holder 1, the movable contact base 45 is fixedly connected with a hook 2 at the tail part of the carbon brush 3 and moves synchronously with the carbon brush 3, the logic circuit 8 is connected with the main control system, the logic circuit 8 judges the length of the carbon brush 3 through the ratio of the variable voltage to the total voltage to monitor in real time and feeds back the length to the main control system of the wind turbine generator set in real time, and therefore the residual.
Further, the system comprises a plurality of carbon brushes 3, each carbon brush 3 is provided with an independent monitoring device for monitoring the length of the carbon brush in real time, and the main control system judges the running state of the wind turbine generator according to the monitoring length of each carbon brush 3.
The utility model discloses still can be to the demand of aerogenerator carbon brush state monitoring, through the monitoring devices of the independent real time monitoring carbon brush length of design, realize the real time monitoring to carbon brush length.
The utility model discloses a slidingtype contact measuring element of simple and easy structure utilizes logic circuit to judge the moving contact, leads the method of voltage between the electrical drainage both ends, realizes the real time monitoring to aerogenerator carbon brush length. Through simple and practical improvement, the carbon brush device can be installed on the existing carbon brush device of the wind driven generator, a limit switch is replaced, and the real-time monitoring on the length of the carbon brush of the wind driven generator is realized. The utility model discloses a structure is simpler, the function is more perfect, and more has the suitability on aerogenerator.
The above description is only for the preferred embodiment of the present invention, and not intended to limit the present invention in any way, and those skilled in the art can make various modifications, equivalent changes and modifications using the above-described technical content, all of which fall within the scope of the present invention.
Claims (10)
1. The utility model provides a monitoring devices of real-time supervision carbon brush length which characterized in that includes:
the mounting plate is made of insulating materials and is used for being fixed on a brush holder of the carbon brush, and one side of the mounting plate is provided with a conductive bar capable of conducting electricity;
the movable contact seat is provided with a conductive block with a contact, the conductive block is made of conductive materials, the contact on the conductive block is in contact connection with the conductive bar, and the other side of the movable contact seat is used for being fixedly connected with a hook at the tail part of the carbon brush and moving synchronously with the carbon brush, so that the contact of the conductive block slides on the conductive block in a contact manner;
the logic circuit is respectively connected with two ends of the conductive bar, a built-in module used for applying direct current voltage to the two ends of the conductive bar is arranged in the logic circuit, the conductive block is connected with one end of the conductive bar through the built-in module and is electrified with the direct current voltage, the voltage of the conductive block and the end of the conductive bar connected with the conductive block is changed voltage, and a voltage ratio operation module used for obtaining the voltage ratio of the changed voltage to the total voltage of the two ends of the conductive bar is also arranged in the logic circuit.
2. The monitoring device for monitoring the length of the carbon brush in real time according to claim 1, wherein two ends of the conductive bar are an end A and an end B respectively, the conductive block is a point C, the end A corresponds to the original length of the carbon brush, the end B corresponds to the length of the carbon brush to be replaced, and the end B is connected with the point C through a built-in module;
and/or the logic circuit calculates the residual length of the carbon brush according to the product of the voltage ratio and the original length of the carbon brush.
3. The monitoring device for monitoring the length of the carbon brush in real time according to claim 2, wherein the logic circuit is configured to be connected to a main control system of the wind turbine generator, and the logic circuit sends the calculated length of the carbon brush to the main control system.
4. The apparatus according to claim 1, wherein the contact is shaped like a hemisphere, so that the contact is in contact connection with the conductive bar through a hemispherical spherical contact.
5. The monitoring device for monitoring the length of the carbon brush in real time according to claim 1, wherein two ends of the conductive bar and the conductive blocks are respectively connected with the logic circuit through wires, and the movable contact block is provided with a threading hole for the wires to pass through.
6. The device for monitoring the length of the carbon brush in real time according to claim 1, wherein a fixing clip for fixedly connecting a hook at the tail of the carbon brush is arranged on the movable contact base.
7. The device for monitoring the length of the carbon brush according to any one of claims 1 to 6, wherein an outer shell is further disposed outside the mounting plate and the movable contact base, the mounting plate is fixedly mounted in a cavity of the outer shell, a groove for moving a hook at a tail of the carbon brush is disposed on one side of the outer shell facing the carbon brush, the hook at the tail of the carbon brush extends into the groove of the outer shell and is fixedly connected with the movable contact base in the cavity, the movable contact base moves in the cavity of the outer shell relative to the mounting plate along with the hook at the tail of the carbon brush, the outer shell is fixedly mounted on the brush holder, a wire outlet is disposed on the outer shell, and the outer shell is made of an insulating material;
and/or the conductive bar, the contact and the conductive block are made of the same conductive material.
8. A carbon brush, characterized in that, including the monitoring device of monitoring carbon brush length in real time of any of claims 1 to 7, the mounting panel is fixedly connected with the brush holder of the carbon brush, and the movable contact base is fixedly connected with the hook at the tail of the carbon brush and moves synchronously with the carbon brush.
9. The wind turbine generator system is characterized by comprising a main control system, a carbon brush, a brush holder and a monitoring device, wherein the brush holder is used for being installed with the carbon brush, the monitoring device is used for monitoring the length of the carbon brush in real time according to any one of claims 1 to 7, the mounting plate is fixedly connected with the brush holder, the movable contact seat is fixedly connected with a hook at the tail part of the carbon brush and moves synchronously with the carbon brush, the main control system is connected with a logic circuit, and the length of the carbon brush calculated according to the logic circuit is monitored in real time.
10. The wind turbine generator according to claim 9, wherein the wind turbine generator comprises a plurality of carbon brushes, each carbon brush is provided with an independent monitoring device for monitoring the length of the carbon brush in real time, and the main control system judges the running state of the wind turbine generator according to the monitored length of each carbon brush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921462465.3U CN210430373U (en) | 2019-09-04 | 2019-09-04 | Monitoring device for monitoring length of carbon brush in real time, carbon brush comprising monitoring device and wind turbine generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921462465.3U CN210430373U (en) | 2019-09-04 | 2019-09-04 | Monitoring device for monitoring length of carbon brush in real time, carbon brush comprising monitoring device and wind turbine generator set |
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| CN210430373U true CN210430373U (en) | 2020-04-28 |
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| CN201921462465.3U Active CN210430373U (en) | 2019-09-04 | 2019-09-04 | Monitoring device for monitoring length of carbon brush in real time, carbon brush comprising monitoring device and wind turbine generator set |
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| CN (1) | CN210430373U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110459931A (en) * | 2019-09-04 | 2019-11-15 | 国电联合动力技术有限公司 | The monitoring device of real-time monitoring carbon brush length and carbon brush and Wind turbines including it |
| CN110459931B (en) * | 2019-09-04 | 2024-07-09 | 国电联合动力技术有限公司 | Monitoring device for monitoring carbon brush length in real time and carbon brush and wind turbine generator comprising same |
-
2019
- 2019-09-04 CN CN201921462465.3U patent/CN210430373U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110459931A (en) * | 2019-09-04 | 2019-11-15 | 国电联合动力技术有限公司 | The monitoring device of real-time monitoring carbon brush length and carbon brush and Wind turbines including it |
| CN110459931B (en) * | 2019-09-04 | 2024-07-09 | 国电联合动力技术有限公司 | Monitoring device for monitoring carbon brush length in real time and carbon brush and wind turbine generator comprising same |
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