CN101289990B - Hydro-turbo generator set vibration protection accomplishing method - Google Patents
Hydro-turbo generator set vibration protection accomplishing method Download PDFInfo
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- CN101289990B CN101289990B CN2008100447202A CN200810044720A CN101289990B CN 101289990 B CN101289990 B CN 101289990B CN 2008100447202 A CN2008100447202 A CN 2008100447202A CN 200810044720 A CN200810044720 A CN 200810044720A CN 101289990 B CN101289990 B CN 101289990B
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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
- Y02E10/20—Hydro energy
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Abstract
The invention provides a method for realizing the vibration protection for a hydroelectric generating set, which belongs to a realizing method for performing the vibration protection for the hydroelectric generating set under different operating conditions, aiming to solve the problem that the prior art can not study by self and regulate output to perform the vibration protection for different models under different working conditions. The method comprises the follow steps of: a. collecting, testing and sorting original data for the models of the hydroelectric generating sets and various operating conditions to construct an analytic system data model; b. analyzing and processing a data format represented as an index of set stability after collecting real-time data for the vibration of the hydroelectric generating set, and storing the data in a database at the same time; and c. extracting and analyzing the vibration data in the database to obtain the characteristics and the trend of the vibration of each working condition of the set, making corresponding early warning and corresponding protecting processes by combining current operating mode, current operating condition and the real-time data, and inputting the early warning and protecting processes into a computer supervisory control system to regulate the output of the set in real time, thereby avoiding a vibration area or machine halt, and reducing harm to the set.
Description
Technical field
The invention belongs to the implementation method of carrying out vibration protection under the different operating conditionss of hydraulic generator unit.
Background technique
Vibration is the major failure that influences normal operation of hydraulic generator unit and harm unit durability, in time carry out fault diagnosis to vibrating, help improving safety, the economic operation level of hydraulic generator unit, improve the Hydraulic Power Unit hours of operation, for the hydroelectric power of China brings huge economic benefit.
The reason that vibration is caused is various, is mainly derived from aspects such as machinery, waterpower, electromagnetic force imbalance.Its harm mainly shows following aspect:
1, causes that unit rotates and the formation and the expansion in the fatigue ruption district of standing part equipment, produce equipment damage thereby make relevant device connect loosening axial displacement.
2, quicken the mutual degree of wear of unit rotating part.Violent swing can make the axle and the temperature of bearing shell raise as macro-axis, and bearing shell is burnt; Generator amature vibrates excessive increase slip-ring brush wearing and tearing, and degree of making it raises, aggravation the aging of equipment and infringement.
3, waterpower imbalance, the eddy current fluctuation pressure that forms in draft tube vibration makes the tail water tube wall produce the crack, when serious the tail water facility is destroyed.
4, the consequence that causes of water wheels generating set resonant vibration is more serious.As the resonance of unit equipment and factory building, can make entire equipment and factory building suffer in various degree damage.
Vibration protection aspect to the hydraulic generator unit does not still have complete solution at present; only limit to realize to data collection, definite value off-limit alarm, with fundamental function such as supervisory control comuter communication, do not possess under different type of machines and different operating modes, realizing functions such as self study, vibration amplitude analysing and processing, the out-of-limit outlet protection of definite value.
Summary of the invention
The objective of the invention is to solve prior art can not be to self study under different type of machines and the different operating modes and adjust and exert oneself and carry out the problem of vibration protection; a kind of implementation method of hydro-turbo generator set vibration protection is provided; can carry out the vibration amplitude analysis automatically and adjust unit output according to the real time data of hydraulic generator unit, avoid unit to be subjected to vibration damage.
Purpose of the present invention realizes by following technical proposals:
The implementation method of hydro-turbo generator set vibration protection is characterized in that, comprises the steps:
A. collect, test and put in order the initial data of hydraulic turbine generator machine set type and various operating conditionss;
B. to carrying out analysing and processing behind the real-time data acquisition of vibration of hydrogenerator set, be characterized by the data format of set steady index, be stored in the database simultaneously;
C. the Various types of data in the database is discerned, classified; vibration data is refined and analyzes; obtain each operating mode vibration of unit characteristic and and trend; in conjunction with the current method of operation of unit and operating conditions and real time data; make corresponding early warning and protection processing; and be input in the computer supervisory control system and adjust exerting oneself of unit in real time, avoid vibrating area or shutdown, reduce harm to unit.
Among the described step c, according to the protection strategy of the vibration of the hydraulic generator unit of different type of machines, different operating modes, for the user provides the setting of protection definite value, formulates the method for operation and outlet protective measure.
Among the described step c, the real-time amplitude of the vibration of hydraulic generator unit is carried out comprehensive analysis, at transient process, locking warning and stoppage protection signal.
Among the described step a, initial data comprises:
Each guide bearing throw value, frame vibration value;
The pressure pulsation value of volute, draft tube, top cover;
The power of unit, aperture, head, field current value;
The arrangement initial data is meant, the initial data of gathering is carried out filtering, waveform analysis, trends analysis, amplitude calculating, three normal form data modeling method creation analysis system data models of marriage relation database.
Among the described step c, differentiate the current method of operation of unit and operating conditions automatically, also can adjust automatically by the supervisory system input or by the control gear diverter switch by the user according to test data and unit characteristics.
The present invention adopts the method for above-mentioned steps, can be according to the real-time vibration data of hydraulic generator unit, initial data in conjunction with its machine set type and operating conditions, make corresponding prompt and early warning, adjust exerting oneself of unit in real time, avoid vibrating area, reduce harm, make unit operation in the maximal efficiency district to unit.
As seen, adopt method of the present invention, can and be protected, avoid unit equipment to damage, in the middle of the operation applicable to various hydraulic generator units at the automatic adjustment of the vibration realizing of hydraulic generator unit.
Embodiment
The present invention is further illustrated below in conjunction with specific embodiment.
The implementation method of hydro-turbo generator set vibration protection comprises the steps:
A. collect, test and put in order the initial data of hydraulic turbine generator machine set type and various operating conditionss, creation analysis system data model;
B. to carrying out analysing and processing behind the real-time data acquisition of vibration of hydrogenerator set, be characterized by the data format of set steady index, be stored in simultaneously in the database, as the Data Source of system handles analysis, data remote;
A. the Various types of data in the database is discerned; classification; vibration data is refined and analyzes (employing query sentence of database; Various types of data is classified; merge; screening; generate new data source); obtain each operating mode vibration of unit characteristic and and trend; in conjunction with the current method of operation of unit and operating conditions and real time data (change of the method for operation and operating mode realizes and can be used as the Rule of judgment that vibration protection is analyzed by the diverter switch of supervisory system or terrain control gear); make corresponding early warning and protection processing; and be input in the computer supervisory control system and adjust exerting oneself of unit in real time; avoid vibrating area or shutdown, reduce harm unit.
Among the described step c, according to the protection strategy of the vibration of the hydraulic generator unit of different type of machines, different operating modes, for the user provides the setting of protection definite value, formulates the method for operation and outlet protective measure.
Among the described step c, the real-time amplitude of the vibration of hydraulic generator unit is carried out comprehensive analysis, at transient process, locking warning and stoppage protection signal.Can not influence the normal operation of system at peripheral element replacement and when safeguarding, can not report by mistake and the mistake outlet.
Among the described step a, initial data comprises:
Each guide bearing throw value, frame vibration value;
The pressure pulsation value of volute, draft tube, top cover;
The power of unit, aperture, head, field current value;
The arrangement initial data is meant, the initial data of gathering is carried out filtering, waveform analysis, trends analysis, amplitude calculating, three normal form data modeling method creation analysis system data models of marriage relation database.
Among the described step c, differentiate the current method of operation of unit and operating conditions automatically, also can adjust automatically by the supervisory system input or by the control gear diverter switch by the user according to test data and unit characteristics.
The method of present embodiment possesses corresponding operation platform, comprise operation system, support software, database, data analyzing and processing software etc., can be for the user provide multiple friendly interface, easy to operate data monitoring, parameter setting and data query window, and provide in real time and the interface of off-line analysis for the user; Can be according to the variation of unit operation situation, and improve the availability of equipment effectively, use the unit operation mode identification technology to understand the variation tendency of controlled device characteristic, the foundation that control is provided and regulates for computer supervisory control system; In conjunction with adopting existing mechanics of communication, video technique, power station set state monitoring network is formed at system and backstage (long-range) state analysis diagnostic work station, realizes data remote, remote maintenance, Remote Diagnosis System.
Claims (5)
1. the implementation method of hydro-turbo generator set vibration protection is characterized in that, comprises the steps:
A. collect, test and put in order the initial data of hydraulic turbine generator machine set type and various operating conditionss, creation analysis system data model;
B. to carrying out analysing and processing behind the real-time data acquisition of vibration of hydrogenerator set, be characterized by the data format of set steady index, be stored in the database simultaneously;
C. the Various types of data in the database is discerned, classified; vibration data is refined and analyzes; obtain the characteristic and the trend of each operating mode vibration of unit; in conjunction with the current method of operation of unit and operating conditions and real time data; make corresponding early warning and protection processing; and be input in the computer supervisory control system and adjust exerting oneself of unit in real time, avoid vibrating area or shutdown, reduce harm to unit.
2. the implementation method of hydro-turbo generator set vibration protection according to claim 1; it is characterized in that; among the described step c, according to the protection strategy of the vibration of the hydraulic generator unit of different type of machines, different operating modes, for the user provides the setting of protection definite value, formulates the method for operation and outlet protective measure.
3. the implementation method of hydro-turbo generator set vibration protection according to claim 1 is characterized in that, among the described step c, the real-time amplitude of the vibration of hydraulic generator unit is carried out comprehensive analysis, at transient process, and locking warning and stoppage protection signal.
4. as the implementation method of hydro-turbo generator set vibration protection as described in claim 1 or 2 or 3, it is characterized in that among the described step a, initial data comprises:
Each guide bearing throw value, frame vibration value;
The pressure pulsation value of volute, draft tube, top cover;
The power of unit, aperture, head, field current value;
The arrangement initial data is meant, the initial data of gathering is carried out filtering, waveform analysis, trends analysis, amplitude calculating, three normal form data modeling method creation analysis system data models of marriage relation database.
5. as the implementation method of hydro-turbo generator set vibration protection as described in the claim 4; it is characterized in that; among the described step c; automatically differentiate the current method of operation of unit and operating conditions according to test data and unit characteristics, also can adjust automatically by the supervisory system input or by the control gear diverter switch by the user.
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| CN2008100447202A CN101289990B (en) | 2008-06-17 | 2008-06-17 | Hydro-turbo generator set vibration protection accomplishing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103456141A (en) * | 2013-08-23 | 2013-12-18 | 国家电网公司 | Hydroelectric generating set state alarm method based on multidimensional variable sample information base |
| CN105549503B (en) * | 2015-12-09 | 2018-08-03 | 国家电网公司 | Pump-storage generator runout is protected and monitoring system |
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| CN102768101B (en) * | 2012-07-23 | 2014-10-15 | 天津大学 | Vibration testing device for hydropower unit in hydropower station and vibration attenuation implementing method of vibration testing device |
| CN103850872B (en) * | 2014-03-06 | 2016-03-16 | 国家电网公司 | Kaplan turbine combination relationship complex optimum test method |
| CN104463435B (en) * | 2014-11-20 | 2018-06-19 | 云南电网公司电力科学研究院 | A kind of Hydropower Unit stable operation zone on-line analysis and evaluation method |
| CN104763576B (en) * | 2015-04-08 | 2017-03-08 | 广东蓄能发电有限公司 | A kind of pump-storage generator protection auxiliary signal anomalous discrimination and modification method |
| CN105181243B (en) * | 2015-08-18 | 2018-05-11 | 哈尔滨电机厂有限责任公司 | The method for rejecting pressure fluctuation interference signal |
| US10823643B2 (en) | 2015-11-06 | 2020-11-03 | Aktiebolaget Skf | Method and device for handling dynamic characteristics of a vibrating machine component |
| CN105893276A (en) * | 2016-06-21 | 2016-08-24 | 国家电网公司 | Method and system for recording status data of pumped-storage group |
| CN108167105B (en) * | 2017-11-28 | 2020-08-04 | 四川谊田集群科技有限公司 | Hydraulic unit vibration accident shutdown protection method and device |
| JP6593429B2 (en) | 2017-12-20 | 2019-10-23 | ダイキン工業株式会社 | Fluid device |
| CN110274762A (en) * | 2019-07-16 | 2019-09-24 | 贵州北盘江电力股份有限公司董箐分公司 | A kind of turbine guide bearing fault diagnosis system based on big data |
| CN111082393A (en) * | 2019-11-19 | 2020-04-28 | 潍柴动力股份有限公司 | Control method and system for self-protection of electric control generator set and generator set |
| CN112946469B (en) * | 2020-11-26 | 2024-06-18 | 华能澜沧江水电股份有限公司 | Monitoring method for self-adaptive dynamic alarm threshold of hydraulic generator |
| CN112855408B (en) * | 2021-01-15 | 2022-03-11 | 湖南五凌电力科技有限公司 | Early warning method and early warning device for hydroelectric generating set |
| CN114876716A (en) * | 2022-06-16 | 2022-08-09 | 西安热工研究院有限公司 | Vibration protection method and system for hydroelectric generating set |
| CN115655764B (en) * | 2022-10-27 | 2023-08-25 | 圣名科技(广州)有限责任公司 | Vibration trend analysis method and device, electronic equipment and storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4782446A (en) * | 1987-05-29 | 1988-11-01 | Amoco Corporation | Vibrator quality control method and system |
| CN1845029A (en) * | 2005-11-11 | 2006-10-11 | 南京科远控制工程有限公司 | Setting method for fault diagnosis and accident prediction |
-
2008
- 2008-06-17 CN CN2008100447202A patent/CN101289990B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4782446A (en) * | 1987-05-29 | 1988-11-01 | Amoco Corporation | Vibrator quality control method and system |
| CN1845029A (en) * | 2005-11-11 | 2006-10-11 | 南京科远控制工程有限公司 | Setting method for fault diagnosis and accident prediction |
Non-Patent Citations (2)
| Title |
|---|
| JP平9-4413A 1997.01.07 |
| 周廷虎，崔悦.《安康水电厂水轮发电机组状态监测与诊断系统》.《水电自动化与大坝监测》.2006,第30卷(第3期),第23-25页. * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103456141A (en) * | 2013-08-23 | 2013-12-18 | 国家电网公司 | Hydroelectric generating set state alarm method based on multidimensional variable sample information base |
| CN105549503B (en) * | 2015-12-09 | 2018-08-03 | 国家电网公司 | Pump-storage generator runout is protected and monitoring system |
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| CN101289990A (en) | 2008-10-22 |
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