KR20170030371A - System for moinitoring brush of generator - Google Patents
System for moinitoring brush of generator Download PDFInfo
- Publication number
- KR20170030371A KR20170030371A KR1020150127881A KR20150127881A KR20170030371A KR 20170030371 A KR20170030371 A KR 20170030371A KR 1020150127881 A KR1020150127881 A KR 1020150127881A KR 20150127881 A KR20150127881 A KR 20150127881A KR 20170030371 A KR20170030371 A KR 20170030371A
- Authority
- KR
- South Korea
- Prior art keywords
- brush
- generator
- magnetic field
- present
- remote monitoring
- Prior art date
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
Abstract
Description
BACKGROUND OF THE
The present invention relates to a generator brush remote monitoring system.
A generator brush is a key component that converts DC energy into electrical energy by supplying DC power to the generator rotor.
The generator brush is required to prevent the generation of output when the brush flame is generated and to prevent the maintenance of the power supply. However, there is no monitoring maintenance system for this purpose at present.
In particular, a plurality of brush high currents (70 ~ 80A / 1ea) are directly measured by the inspectors, and thus a remote monitoring system for preventing an electric shock accident is required.
In order to manufacture the remote monitoring equipment, it is required to measure the contact surface temperature, vibration, and current density of individual brushes, and to develop technologies such as temperature and humidity control in an optimum state of brush operation, brush facility management and maintenance procedures.
Up to now, a management system for a generator brush has been provided only with a system in which, when an overcurrent flows to a generator brush and an overheating occurs and a flame or the like is generated, the manager directly confirms and takes action.
However, in the conventional brush management system, there is a problem in that a precaution can not be performed because the generator brush is detected before the occurrence of flame or the like.
It is an object of the present invention, which is devised to solve the problems described above, to provide a magnetic sensor array that senses a magnetic field generated in each brush, thereby sensing a current value flowing in a current brush according to a change in magnetic field in each brush, (For example, generation of a flame of a brush) can be prevented in advance due to a temperature rise in the generator brush remote monitoring system.
It is another object of the present invention to provide a generator brush remote monitoring system for detecting whether or not a vibration of a brush is generated and / or a brush position is changed in real time by detecting a generator brush, .
Another object of the present invention is to provide a generator brush remote monitoring system including an infrared thermal imaging camera for photographing a generator brush so that the temperature of each brush can be accurately measured in real time and remote monitoring and management thereof can be performed It is for this reason.
Another object of the present invention is to real-time the generator brush management according to the information of the generator brush circumference or the brush temperature by measuring the temperature / humidity in the vicinity of the generator brush in real time.
According to an aspect of the present invention, there is provided a magnetic field sensor array for each brush, wherein the magnetic field sensor arrays each measure a magnetic field change in real time, And detects a problem such as flame generation due to real-time overcurrent for each brush, so that the problem can be detected and managed beforehand.
The generator brush remote monitoring system according to the present invention further includes a CCD camera to measure an image position of the brush and determine whether or not the vibration of the brush is generated or not based on the presence or absence of a change in position of each brush measured through a CCD camera Monitoring the position change in real time so that management thereof can be performed quickly and accurately.
In addition, the generator brush remote monitoring system according to the present invention further includes an infrared thermal image sensor, which can monitor the surface temperature of each brush in real time to monitor a more accurate brush heating state.
According to the present invention as described above, it is possible to detect the magnetic field in the generator brush in real time and to monitor the overcurrent phenomenon in the brush in advance to control the generator brush beforehand before the flame is generated in the brush. A monitoring system can be provided.
In addition, it is possible to provide a generator brush remote monitoring system that enables remote monitoring of the generator brush, and enables countermeasure management before the occurrence of various problems in the generator brush.
1 is an overall system configuration diagram of a generator brush remote monitoring system according to the present invention.
Fig. 2 is an exemplary diagram showing the arrangement of the magnetic field sensor arrays for each of the generator brushes. Fig.
3 is a reference diagram for explaining a method of calculating a magnetic field image distribution for a magnetic field sensed by a magnetic field sensor array.
BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings.
The present invention may, however, be embodied in many different forms and should not be construed as 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. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the drawings for explaining a generator brush remote monitoring system according to embodiments of the present invention.
A generator brush is a key component that converts DC energy into electrical energy by supplying DC power to the generator rotor.
The generator brush is required to prevent the generation of output when the brush flame is generated and to prevent the maintenance of the power supply. However, there is no monitoring maintenance system for this purpose at present.
In particular, a plurality of brush high currents (70 ~ 80A / 1ea) are directly measured by the inspectors, and thus a remote monitoring system for preventing an electric shock accident is required.
In order to manufacture the remote monitoring equipment, it is required to measure the contact surface temperature, vibration, and current density of individual brushes, and to develop technologies such as temperature and humidity control in an optimum state of brush operation, brush facility management and maintenance procedures.
The generator brush remote monitoring system according to the present invention analyzes the operation state (temperature, vibration, humidity, current density) of individual brushes, analyzes them, and quantifies them as data base, trend and event values to prevent preventive maintenance and systematic maintenance management We want to provide a programmable system that can be improved.
In particular, the generator brush remote monitoring system according to the present invention includes a magnetic field sensor array that senses a magnetic field generated in each brush, thereby sensing a current value flowing in the current brush according to a change in magnetic field in each brush, (E.g., generation of a flame of a brush) can be prevented in advance.
More specifically, the generator brush remote monitoring system according to the present invention measures the supply current of the brush surface temperature and the surrounding temperature and humidity in a non-contact manner, measures the brush chattering phenomenon and the flame generation state, A system capable of remote monitoring is provided (see Fig. 1).
That is, as shown in FIGS. 1 and 2, the generator brush remote monitoring system according to the present invention constitutes a magnetic field sensor array for each brush, measures a magnetic field change in each of the magnetic field sensor arrays in real time, The change of the current supplied to each brush is detected, and problems such as flame generation due to real-time overcurrent for each brush can be detected and managed before the occurrence of the problem.
The generator brush remote monitoring system according to the present invention further includes a CCD camera to measure an image position of the brush and determine whether or not the vibration of the brush is generated or not based on the presence or absence of a change in position of each brush measured through a CCD camera Monitoring the position change in real time so that management thereof can be performed quickly and accurately.
In addition, the generator brush remote monitoring system according to the present invention further includes an infrared thermal image sensor, which can monitor the surface temperature of each brush in real time to monitor a more accurate brush heating state.
In this case, the generator brush remote monitoring system according to the present invention further includes a temperature / humidity sensor for detecting the temperature and humidity around the generator brush.
The generator brush remote monitoring system according to the present invention is a system for monitoring a generator brush remote monitoring system, which includes a magnetic field sensed by a magnetic field sensor array, a brush vibration or position change photographed by a CCD camera, a temperature of each brush region photographed and measured by an infrared thermal image sensor, The humidity and the temperature measured by the sensor are displayed on the screen in accordance with the administrator's selection. In addition, the magnetic field sensed by the magnetic sensor array, whether the brush vibration or position is photographed by the CCD camera, If at least one of the temperature of each brush area measured by the sensor and the humidity and temperature measured by the temperature / humidity sensor exceeds the preset appropriate range value for each value, the content of the sensing information is displayed And an alarm is generated, so that a flame is generated in the generator brush Make sure that brush management is done beforehand.
In particular, as shown in FIG. 3, each of the magnetic sensor array arrays is influenced by a magnetic field generated by an adjacent brush, as well as a geomagnetism, so that the generator brush remote monitoring system according to the present invention can detect a magnetic field generated from an adjacent brush, After the offset process, the intensity of the magnetic field by the brush itself is measured.
It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and range of the claims and the equivalents thereof are included in the scope of the present invention Should be interpreted.
.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150127881A KR20170030371A (en) | 2015-09-09 | 2015-09-09 | System for moinitoring brush of generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150127881A KR20170030371A (en) | 2015-09-09 | 2015-09-09 | System for moinitoring brush of generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20170030371A true KR20170030371A (en) | 2017-03-17 |
Family
ID=58502258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020150127881A KR20170030371A (en) | 2015-09-09 | 2015-09-09 | System for moinitoring brush of generator |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20170030371A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606177A (en) * | 2021-08-20 | 2021-11-05 | 重庆长安汽车股份有限公司 | Method for testing and calculating service life of brushed fan |
| KR102449375B1 (en) * | 2022-06-30 | 2022-10-06 | 한국전진기술(주) | System for detecting abnormal state between collector ring and brush of generator |
| KR102464750B1 (en) * | 2022-06-30 | 2022-11-10 | 한국전진기술(주) | Method for detecting abnormal state of generator |
-
2015
- 2015-09-09 KR KR1020150127881A patent/KR20170030371A/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606177A (en) * | 2021-08-20 | 2021-11-05 | 重庆长安汽车股份有限公司 | Method for testing and calculating service life of brushed fan |
| CN113606177B (en) * | 2021-08-20 | 2022-07-08 | 重庆长安汽车股份有限公司 | Method for testing and calculating service life of brushed fan |
| KR102449375B1 (en) * | 2022-06-30 | 2022-10-06 | 한국전진기술(주) | System for detecting abnormal state between collector ring and brush of generator |
| KR102464750B1 (en) * | 2022-06-30 | 2022-11-10 | 한국전진기술(주) | Method for detecting abnormal state of generator |
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