CN111707352A - Real-time monitoring method for vibration noise of transformer - Google Patents
Real-time monitoring method for vibration noise of transformer Download PDFInfo
- Publication number
- CN111707352A CN111707352A CN202010464488.9A CN202010464488A CN111707352A CN 111707352 A CN111707352 A CN 111707352A CN 202010464488 A CN202010464488 A CN 202010464488A CN 111707352 A CN111707352 A CN 111707352A
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- Prior art keywords
- transformer
- characteristic database
- monitoring
- vibration noise
- load parameter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Housings And Mounting Of Transformers (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a real-time monitoring method for vibration noise of a transformer, which can monitor the vibration condition of the transformer on line in real time. The invention comprises the following steps: (1) establishing a transformer no-load parameter characteristic database: the no-load parameter characteristic database is a characteristic database containing the noise change rule of the transformer during no-load; (2) establishing a transformer load parameter characteristic database: the load parameter characteristic database is a characteristic database containing noise change rules when the transformer is loaded; (3) an acceleration sensor and a temperature sensor are additionally arranged on the transformer; (4) performing signal processing on the acceleration parameters and the temperature parameters acquired by the acceleration sensor and the temperature sensor through the controller to obtain a data packet to be transmitted; (5) and (4) sending the data packet to be transmitted in the step (4) to a server of the monitoring room through a wireless transmission module.
Description
Technical Field
The invention relates to a monitoring technology of a transformer, in particular to a vibration monitoring technology of the transformer.
Background
With the continuous expansion of power systems, the transmitted voltage and power are higher and higher, and more strict requirements on the performance, safety and reliability of large transformers are also provided. In recent years, high-voltage and extra-high-voltage transformers have been subject to vibration-induced failures, and therefore the importance of detecting transformer vibration has become well recognized in the industry.
At present, when the performance of the transformer is detected domestically and abroad, the traditional detection method is basically adopted, and the traditional method for detecting the state information of the transformer is appearance inspection, insulation test, oil chromatography analysis, partial discharge and the like. These conventional methods can only provide transformer failure and post-accident hysteresis information, i.e., status information can only be obtained after an accident. The method is not suitable for the modern state maintenance development trend, and the requirement of monitoring the real-time state of the transformer cannot be met.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method for monitoring vibration noise of a transformer in real time, which can monitor the vibration condition of the transformer on line in real time, in view of the above-mentioned deficiencies in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
the real-time monitoring method for the vibration noise of the transformer comprises the following steps:
(1) establishing a transformer no-load parameter characteristic database: the no-load parameter characteristic database is a characteristic database containing the noise change rule of the transformer when the transformer is no-load;
(2) establishing a transformer load parameter characteristic database: the load parameter characteristic database is a characteristic database containing noise change rules when the transformer is loaded;
(3) an acceleration sensor and a temperature sensor are additionally arranged on the transformer;
(4) performing signal processing on the acceleration parameters and the temperature parameters acquired by the acceleration sensor and the temperature sensor through the controller to obtain a data packet to be transmitted;
(5) and (4) sending the data packet to be transmitted in the step (4) to a server of the monitoring room through a wireless transmission module, and comparing the data packet with a transformer no-load parameter characteristic database and a transformer load parameter characteristic database in the server of the monitoring room to obtain a transformer vibration monitoring result.
As a preferred real-time aspect of the invention: the acceleration sensor and the temperature sensor are both mounted on the transformer.
As a preferred real-time aspect of the invention: and an acceleration sensor is attached to each phase of winding of the three-phase primary winding and the three-phase secondary winding of the transformer.
As a preferred real-time aspect of the invention: and (2) the transformer no-load parameter characteristic database in the step (1) is used for analyzing the time-frequency domain relation of the voltage and the vibration noise of the transformer in the no-load state by measuring the data of the voltage, the harmonic wave and the vibration noise signals of various transformers in the no-load state and summarizing the obtained noise change rule of the transformer in the no-load state.
As a preferred real-time aspect of the invention: and (2) the transformer load parameter characteristic database in the step (1) is used for analyzing the time-frequency domain relation of voltage and vibration noise when the transformer is loaded by measuring the data of voltage and vibration noise signals when various transformers are loaded, and summarizing the obtained noise change rule when the transformer is loaded.
As a preferred real-time aspect of the invention: the real-time online monitoring and analyzing simulation platform for the vibration noise, the temperature and the load change of the transformer is installed on a server of the monitoring room, and not only can the platform provide an analysis method and a problem solving principle for the occurred faults, but also can provide an alarm analysis and problem solving principle for potential faults.
The invention has the beneficial effects that:
the invention adopts a real-time monitoring technology and an information processing technology, generates state monitoring, makes up the defects of the traditional transformer monitoring method, and can monitor the vibration information and the temperature change of equipment on line. Through analysis of the reasons of the faults of the transformer, besides the insulation performance, the oil color spectrum, the partial discharge and the like of the transformer have influence on the performance of the transformer, the structure, the material, the installation, the transportation, the impact, the load and the like of the transformer can cause the performance of the transformer to be reduced, and particularly, the transformer can vibrate in the working process, so that various data which influence the service life of the transformer are continuously recorded for the transformer in real time, latent faults are discovered as soon as possible, and basic state maintenance is very important to achieve.
Detailed Description
The following describes embodiments of the present invention with reference to examples:
the invention discloses a real-time monitoring method for vibration noise of a transformer, which comprises the following steps:
(1) establishing a transformer no-load parameter characteristic database: the no-load parameter characteristic database is a characteristic database containing the noise change rule of the transformer when the transformer is no-load;
(2) establishing a transformer load parameter characteristic database: the load parameter characteristic database is a characteristic database containing noise change rules when the transformer is loaded;
(3) an acceleration sensor and a temperature sensor are additionally arranged on the transformer;
(4) performing signal processing on the acceleration parameters and the temperature parameters acquired by the acceleration sensor and the temperature sensor through the controller to obtain a data packet to be transmitted;
(5) and (4) sending the data packet to be transmitted in the step (4) to a server of the monitoring room through a wireless transmission module, and comparing the data packet with a transformer no-load parameter characteristic database and a transformer load parameter characteristic database in the server of the monitoring room to obtain a transformer vibration monitoring result.
As a preferred embodiment of the present invention: the acceleration sensor and the temperature sensor are both attached to the transformer.
As a preferred embodiment of the present invention: and an acceleration sensor is attached to each phase of winding of the three-phase primary winding and the three-phase secondary winding of the transformer.
As a preferred embodiment of the present invention: and (2) the transformer no-load parameter characteristic database in the step (1) is used for analyzing the time-frequency domain relation of the voltage and the vibration noise of the transformer in the no-load state by measuring the data of the voltage, the harmonic wave and the vibration noise signals of various transformers in the no-load state and summarizing the obtained noise change rule of the transformer in the no-load state.
As a preferred embodiment of the present invention: and (2) the transformer load parameter characteristic database in the step (1) is used for analyzing the time-frequency domain relation of voltage and vibration noise when the transformer is loaded by measuring the data of voltage and vibration noise signals when various transformers are loaded, and summarizing the obtained noise change rule when the transformers are loaded.
As a preferred embodiment of the present invention: a real-time online monitoring and analyzing simulation platform for vibration noise, temperature and load change of the transformer is installed on a server of the monitoring room, and the platform can provide an analysis method and a problem solving principle for the occurrence of faults and can provide an alarm analysis and problem solving principle for potential faults.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes, which relate to the related art known to those skilled in the art and fall within the protection scope of the present invention, can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.
Claims (6)
1. The real-time monitoring method for the vibration noise of the transformer is characterized by comprising the following steps: comprises the following steps:
(1) establishing a transformer no-load parameter characteristic database: the no-load parameter characteristic database is a characteristic database containing the noise change rule of the transformer during no-load;
(2) establishing a transformer load parameter characteristic database: the load parameter characteristic database is a characteristic database containing noise change rules when the transformer is loaded;
(3) an acceleration sensor and a temperature sensor are additionally arranged on the transformer;
(4) performing signal processing on the acceleration parameters and the temperature parameters acquired by the acceleration sensor and the temperature sensor through the controller to obtain a data packet to be transmitted;
(5) and (4) sending the data packet to be transmitted in the step (4) to a server of the monitoring room through a wireless transmission module, and comparing the data packet with a transformer no-load parameter characteristic database and a transformer load parameter characteristic database in the server of the monitoring room to obtain a transformer vibration monitoring result.
2. The method for monitoring the vibration noise of the transformer in real time as claimed in claim 1, wherein: the acceleration sensor and the temperature sensor are both attached to the transformer.
3. The method for monitoring the vibration noise of the transformer in real time as claimed in claim 2, wherein: and an acceleration sensor is attached to each phase of winding of the three-phase primary winding and the three-phase secondary winding of the transformer.
4. The method for monitoring the vibration noise of the transformer in real time as claimed in claim 1, wherein: and (2) the transformer no-load parameter characteristic database in the step (1) is used for analyzing the time-frequency domain relation of the voltage and the vibration noise of the transformer in the no-load state by measuring the data of the voltage, the harmonic wave and the vibration noise signals of various transformers in the no-load state and summarizing the obtained noise change rule of the transformer in the no-load state.
5. The method for monitoring the vibration noise of the transformer in real time as claimed in claim 1, wherein: and (2) the transformer load parameter characteristic database in the step (1) is used for analyzing the time-frequency domain relation of voltage and vibration noise when the transformer is loaded by measuring the data of voltage and vibration noise signals when various transformers are loaded, and summarizing the obtained noise change rule when the transformers are loaded.
6. The method for monitoring the vibration noise of the transformer in real time as claimed in claim 1, wherein: a real-time online monitoring and analyzing simulation platform for vibration noise, temperature and load change of the transformer is installed on a server of the monitoring room, and the platform can provide an analysis method and a problem solving principle for an occurred fault and can provide an alarm analysis and problem solving principle for a potential fault.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010464488.9A CN111707352A (en) | 2020-05-27 | 2020-05-27 | Real-time monitoring method for vibration noise of transformer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010464488.9A CN111707352A (en) | 2020-05-27 | 2020-05-27 | Real-time monitoring method for vibration noise of transformer |
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| CN111707352A true CN111707352A (en) | 2020-09-25 |
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| CN202010464488.9A Pending CN111707352A (en) | 2020-05-27 | 2020-05-27 | Real-time monitoring method for vibration noise of transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116295661A (en) * | 2023-05-22 | 2023-06-23 | 济南西电特种变压器有限公司 | Transformer fault early warning system based on Internet of things |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070070558A1 (en) * | 2005-09-28 | 2007-03-29 | Daniel Liu | Electrical load status detection and control device |
| KR20100045145A (en) * | 2008-10-23 | 2010-05-03 | 한국전력공사 | Vibration monitering and diagnostic system for large power transformer |
| CN106643877A (en) * | 2016-11-18 | 2017-05-10 | 西安亚能电气有限责任公司 | Multi-sensing information fusion-based power transformer on-line monitoring system and method |
| CN108446379A (en) * | 2018-03-16 | 2018-08-24 | 中国长江三峡集团有限公司 | Fault Diagnosis Method of Hydro-generating Unit |
| CN108733957A (en) * | 2018-05-31 | 2018-11-02 | 国网安徽省电力有限公司淮北供电公司 | A kind of noise characteristic extraction of for transformer fault diagnosis and judgment method |
| CN110873604A (en) * | 2019-11-21 | 2020-03-10 | 上海欣影电力科技股份有限公司 | Transformer noise vibration on-line monitoring system |
-
2020
- 2020-05-27 CN CN202010464488.9A patent/CN111707352A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070070558A1 (en) * | 2005-09-28 | 2007-03-29 | Daniel Liu | Electrical load status detection and control device |
| KR20100045145A (en) * | 2008-10-23 | 2010-05-03 | 한국전력공사 | Vibration monitering and diagnostic system for large power transformer |
| CN106643877A (en) * | 2016-11-18 | 2017-05-10 | 西安亚能电气有限责任公司 | Multi-sensing information fusion-based power transformer on-line monitoring system and method |
| CN108446379A (en) * | 2018-03-16 | 2018-08-24 | 中国长江三峡集团有限公司 | Fault Diagnosis Method of Hydro-generating Unit |
| CN108733957A (en) * | 2018-05-31 | 2018-11-02 | 国网安徽省电力有限公司淮北供电公司 | A kind of noise characteristic extraction of for transformer fault diagnosis and judgment method |
| CN110873604A (en) * | 2019-11-21 | 2020-03-10 | 上海欣影电力科技股份有限公司 | Transformer noise vibration on-line monitoring system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116295661A (en) * | 2023-05-22 | 2023-06-23 | 济南西电特种变压器有限公司 | Transformer fault early warning system based on Internet of things |
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Application publication date: 20200925 |
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