CN108953072A - A kind of unit for megawatt double-fed wind generators group power generation owner's carbon brush burns method for early warning - Google Patents
A kind of unit for megawatt double-fed wind generators group power generation owner's carbon brush burns method for early warning Download PDFInfo
- Publication number
- CN108953072A CN108953072A CN201810665723.1A CN201810665723A CN108953072A CN 108953072 A CN108953072 A CN 108953072A CN 201810665723 A CN201810665723 A CN 201810665723A CN 108953072 A CN108953072 A CN 108953072A
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- China
- Prior art keywords
- carbon brush
- brush
- tds
- temperature
- detect switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 61
- 238000010248 power generation Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 14
- 208000035874 Excoriation Diseases 0.000 title claims description 9
- 238000012360 testing method Methods 0.000 claims abstract description 16
- 238000007689 inspection Methods 0.000 claims description 6
- 244000185238 Lophostemon confertus Species 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 10
- 239000000428 dust Substances 0.000 description 7
- 239000003292 glue Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 3
- 229920002379 silicone rubber Polymers 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229920006335 epoxy glue Polymers 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0264—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for stopping; controlling in emergency situations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0272—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor by measures acting on the electrical generator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
-
- 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
- G08B21/185—Electrical failure alarms
-
- 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
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
-
- 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
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Wind Motors (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
The invention discloses a kind of unit for megawatt double-fed wind generators group power generation owner's carbon brush to burn method for early warning, this method is the master control system DI test point for being back to wind power generating set after the normally-closed contact for 9 temperature detect switch (TDS)s for being fixed on carbon brush brush carrier side is connected again, since brush carrier temperature is approximate with carbon brush temperature, when brush carrier temperature reaches temperature detect switch (TDS) action value, temperature detect switch (TDS) contact is gone off by being closed, this switching signal is back to master control system, master control system issues halt instruction after detecting switching value variation, so i.e. after wherein any one temperature detect switch (TDS) monitored thermal cutoff, wind power generating set can issue alarm stopping signal, reach the main carbon brush of generator, in the case that collector ring is not burnt, the purpose for the main carbon brush temperature anomaly that gives warning in advance, to avoid the big parts damages of generator.
Description
Technical field
The present invention relates to the technical fields that unit for megawatt double-fed wind generators group power generation owner's carbon brush burns early warning protection, especially
It refers to that a kind of unit for megawatt double-fed wind generators group power generation owner's carbon brush burns method for early warning.
Background technique
A kind of clean reproducible energy of the wind energy as easy exploiting was paid attention to by country in recent years.Due to country it is big
Power supports that the Wind turbines total installation of generating capacity in China is considerable.O&M market is huge after wind power generating set, thus to wind
Power generator group life cycle internal stability is put forward higher requirements.Main component of the double-fed generator as Wind turbines, it is right
More stringent requirements are proposed for it.If generator, which is safeguarded in Generator Slip Ring room not in time, when unit is run can accumulate carbon dust, Yi Yin
Carbon brush sparking is played to burn, burn collector ring under serious conditions.The invention patent is intended to monitor the maximum temperature of carbon brush (brush carrier), into
And carbon brush, collector ring is avoided to burn.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, propose a kind of unit for megawatt double-fed wind generators group hair
The main carbon brush of motor burns method for early warning, so that power generation owner's carbon brush maximum temperature will be in controllable state (140 DEG C of maximum temperature),
In the case that carbon brush overheating and power generation owner's carbon brush, collector ring are not burnt, give warning in advance main carbon brush temperature anomaly, to keep away
Exempt from the big parts damages of generator.
To achieve the above object, a kind of technical solution provided by the present invention are as follows: unit for megawatt double-fed wind generators group hair
The main carbon brush of motor burns method for early warning, and this method is the normally-closed contact string that will be fixed on 9 temperature detect switch (TDS)s of carbon brush brush carrier side
The master control system DI test point for being back to wind power generating set after connection again works as brush carrier since brush carrier temperature is approximate with carbon brush temperature
When temperature reaches temperature detect switch (TDS) action value, temperature detect switch (TDS) contact is gone off by being closed, this switching signal is back to master control system
System, master control system issue halt instruction after detecting switching value variation, ought wherein any one temperature detect switch (TDS) monitor in this way
After crossing thermal cutoff, wind power generating set can issue alarm stopping signal, and main carbon brush, the collector ring for reaching generator are not burnt
In the case where, the purpose for the main carbon brush temperature anomaly that gives warning in advance.
After wind power generating set issues alarm stopping signal, Field Force needs boarding inspection to confirm that main carbon brush whether there is
Abnormal conditions (carbon brush clamping stagnation, carbon dust accumulation etc.), Field Force observes the thermometric test paper on brush carrier, answers at least one brush at this time
The thermometric test paper discoloration held, needs 6 carbon brush of the emphasis inspection with this brush carrier with phase, checks whether it is slided in brush box suitable
Freely, and exception is handled.
Compared with prior art, the present invention have the following advantages that with the utility model has the advantages that
So that power generation owner's carbon brush maximum temperature will be in controllable state (140 DEG C of maximum temperature), carbon brush overheating and
In the case that power generation owner's carbon brush, collector ring are not burnt, give warning in advance main carbon brush temperature anomaly, to avoid the big component of generator
Damage, for the project that generator has located quality guarantee, can save the maintenance cost of blower, be connected in enterprise and create income
(single unit does this rectification and spends about 130CNY, main carbon brush price (containing tax) about 165.88CNY, and collector ring price (contains
Tax) about 36782.9CNY).
Detailed description of the invention
Fig. 1 is the key wiring diagram that power generation owner's carbon brush of the invention burns early warning rectification scheme.
Fig. 2 is that pictorial diagram is dismantled in the Generator Slip Ring room before the present invention program rectification.
Fig. 3 is that through the double-deck thermoplastic tube, that treated is in kind after the temperature detect switch (TDS) lead wiring before the present invention program rectification is completed
Figure.
Fig. 4 is the material object after the silicon rubber glass fiber hose end before the present invention program rectification is bound with band
Figure.
Fig. 5 is glue quantity pictorial diagram when temperature detect switch (TDS) and thermometric test paper are fixed.
Fig. 6 a is the pictorial diagram that temperature detect switch (TDS) is fixed on to brush carrier side when temperature detect switch (TDS) and thermometric test paper are fixed with band
One of.
Fig. 6 b is the pictorial diagram that temperature detect switch (TDS) is fixed on to brush carrier side when temperature detect switch (TDS) and thermometric test paper are fixed with band
Two.
Fig. 6 c is the pictorial diagram that temperature detect switch (TDS) is fixed on to brush carrier side when temperature detect switch (TDS) and thermometric test paper are fixed with band
Three.
Fig. 7 a be generate electricity owner's carbon brush burn in early warning rectification scheme slip ring room, one of the pictorial diagram of cabin, base wiring.
Fig. 7 b is that power generation owner's carbon brush burns the two of interior, the wiring of cabin, base the pictorial diagram of early warning rectification scheme slip ring room.
Fig. 8 a is one of the pictorial diagram of temperature detect switch (TDS) signal wire cabin cabinet ground connection and temperature detect switch (TDS) signal wire wiring.
Fig. 8 b is the two of the pictorial diagram of temperature detect switch (TDS) signal wire cabin cabinet ground connection and temperature detect switch (TDS) signal wire wiring.
Fig. 9 is the whole effect picture in kind that power generation owner's carbon brush burns the completion of early warning rectification scheme.
Specific embodiment
The present invention is further explained in the light of specific embodiments.
As shown in Figure 1, the power generation owner's carbon brush of unit for megawatt double-fed wind generators group provided by the present embodiment burns early warning
Method, specifically: the normally closed of 9 temperature detect switch (TDS)s A1, A2, A3, B1, B2, B3, C1, C2, C3 of carbon brush brush carrier side will be fixed on
The master control system DI test point of wind power generating set is back to after contact series again, since brush carrier temperature is approximate with carbon brush temperature,
When brush carrier temperature reaches temperature detect switch (TDS) action value, temperature detect switch (TDS) contact is gone off by being closed, this switching signal is back to
Master control system, master control system issue halt instruction after detecting switching value variation, and being in this way ought wherein any one temperature detect switch (TDS)
After monitoring thermal cutoff, wind power generating set can issue alarm stopping signal, reach main carbon brush, the collector ring of generator
In the case where not burning, the purpose for the main carbon brush temperature anomaly that gives warning in advance.
After wind power generating set issues alarm stopping signal, Field Force needs boarding inspection to confirm that main carbon brush whether there is
Abnormal conditions, the thermometric test paper on Field Force's observable brush carrier such as clamping stagnation, carbon dust accumulation are answered at this time at least one brush carrier
Thermometric test paper discoloration, need 6 carbon brush of the emphasis inspection with this brush carrier with phase, check whether it is slided in brush box smooth,
And handle exception.
Showing for method for early warning is burnt below for the above-mentioned unit for megawatt double-fed wind generators group power generation owner's carbon brush of the present embodiment
Field rectification situation:
One, preparation before rectifying and improving
1, Generator Slip Ring room cover plate (13mm spanner) is opened, removes the rotor-exciting lead (18mm of identified areas in figure
Spanner), while all carbon brush are removed, carbon dust, especially two sides of brush carrier are cleared up, need to be wiped with wet rag, it is ensured that mounting surface
Completely, as shown in Figure 2.
2, there was only 7cm since temperature detect switch (TDS) carries lead, it is therefore desirable to other wiring (Halogen is crosslinked fire retardant PE line), temperature
The double-deck thermoplastic tube is needed to handle after the completion of control switch leads wiring, as shown in Figure 3.Silicon rubber glass fiber hose end need to use band
It is bound, prevents carbon dust from entering in hose, as shown in Figure 4.
Two, the fixation of temperature detect switch (TDS) and thermometric test paper
1, it according to strength epoxy glue operation instruction, after mixing according to volume ratio 1:1 by A, B glue, takes and is placed in temperature on a small quantity
Control switch side (note: glue quantity should not be excessive, and extra glue is avoided to drop on collector ring), glue quantity such as Fig. 5 institute
Show.
2, the side that temperature detect switch (TDS) is fixed on according to the position and angle of the following figure with band to brush carrier (notes: temperature detect switch (TDS)
It should be mounted on brush trigger switch side, as shown in Fig. 6 a, 6b, 6c, to avoid temperature detect switch (TDS) lead effect carbon
The normal function of brush wear alarm).
The installation of temperature detect switch (TDS) should be carried out according to group, that is, after fixing one group of temperature detect switch (TDS) (three temperature detect switch (TDS)s), be used
Heat gun heats 20 minutes (three brush carriers need to be evenly heated with two heat guns, heat gun is 20cm at a distance from brush carrier), contracting
The curing time of short seccotine.Then it is sequentially completed the installation of other two groups of temperature detect switch (TDS)s.
After temperature detect switch (TDS) is all installed, thermometric test paper is sequentially arranged to another side of brush carrier, when installation answers
In view of the convenience of later observation.
Three, it is routed in temperature detect switch (TDS) signal wire slip ring room and cabin
Power generation owner's carbon brush is burnt in early warning rectification scheme slip ring room, cabin, base are routed, as shown in Fig. 7 a, 7b.
Note: since collector ring of generator room easily accumulates carbon dust, hot environment, the wiring of temperature detect switch (TDS) need to be used all in addition
Silicon rubber glass fiber hose is protected, and hose junction must be bandaged with high temperature gummed tape, and carbon dust is avoided to enter in hose
Influence early warning effect.
Temperature detect switch (TDS) signal wire cabin cabinet ground connection and temperature detect switch (TDS) signal wire wiring, as shown in Fig. 8 a, 8b.
Finally, obtain power generation owner's carbon brush burn early warning rectification scheme complete overall effect it is as shown in Figure 9.
Embodiment described above is only the preferred embodiments of the invention, and but not intended to limit the scope of the present invention, therefore
All shapes according to the present invention change made by principle, should all be included within the scope of protection of the present invention.
Claims (2)
1. a kind of unit for megawatt double-fed wind generators group power generation owner's carbon brush burns method for early warning, it is characterised in that: this method is
The master control system of wind power generating set will be back to after the normally-closed contact for being fixed on 9 temperature detect switch (TDS)s of carbon brush brush carrier side series connection again
System DI test point, since brush carrier temperature is approximate with carbon brush temperature, when brush carrier temperature reaches temperature detect switch (TDS) action value, temperature detect switch (TDS)
Contact is gone off by being closed, this switching signal is back to master control system, master control system issues after detecting switching value variation
Halt instruction, so i.e. after wherein any one temperature detect switch (TDS) monitored thermal cutoff, wind power generating set can be issued
Alarm stopping signal, reach generator main carbon brush, collector ring do not burn in the case where, give warning in advance main carbon brush temperature anomaly
Purpose.
2. a kind of unit for megawatt double-fed wind generators group power generation owner's carbon brush according to claim 1 burns method for early warning,
It is characterized by: after wind power generating set issues alarm stopping signal, Field Force needs whether boarding inspection confirms main carbon brush
There are abnormal conditions, Field Force observes the thermometric test paper on brush carrier, the thermometric test paper at least one brush carrier is answered to become at this time
Color needs 6 carbon brush of the emphasis inspection with this brush carrier with phase, checks whether it is slided in brush box smooth, and handle exception.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810665723.1A CN108953072A (en) | 2018-06-26 | 2018-06-26 | A kind of unit for megawatt double-fed wind generators group power generation owner's carbon brush burns method for early warning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810665723.1A CN108953072A (en) | 2018-06-26 | 2018-06-26 | A kind of unit for megawatt double-fed wind generators group power generation owner's carbon brush burns method for early warning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108953072A true CN108953072A (en) | 2018-12-07 |
Family
ID=64486792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810665723.1A Pending CN108953072A (en) | 2018-06-26 | 2018-06-26 | A kind of unit for megawatt double-fed wind generators group power generation owner's carbon brush burns method for early warning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108953072A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294292A (en) * | 2021-06-30 | 2021-08-24 | 北京金风科创风电设备有限公司 | Control method, device, system, equipment and medium of wind generating set |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010000350A1 (en) * | 2008-07-01 | 2010-01-07 | Vestas Wind Systems A/S | Estimation and control of wear in wind turbine slip ring brushes |
| CN204649314U (en) * | 2015-04-10 | 2015-09-16 | 广西鱼峰水泥股份有限公司 | Winding motor carbon brush device for monitoring temperature |
| CN205748480U (en) * | 2016-06-15 | 2016-11-30 | 湖南省湘电试验研究院有限公司 | A kind of generator carbon brush electric current and on-line temperature monitoring and prior-warning device |
| CN206135169U (en) * | 2016-11-09 | 2017-04-26 | 三峡大学 | Novel collecting ring |
| CN106655636A (en) * | 2016-12-13 | 2017-05-10 | 北京三电机系统有限责任公司 | Collecting ring apparatus and wind driven generator |
| CN206504794U (en) * | 2016-12-26 | 2017-09-19 | 大唐陕西发电有限公司渭河热电厂 | A kind of generator carbon brush temperature observation circuit |
-
2018
- 2018-06-26 CN CN201810665723.1A patent/CN108953072A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010000350A1 (en) * | 2008-07-01 | 2010-01-07 | Vestas Wind Systems A/S | Estimation and control of wear in wind turbine slip ring brushes |
| CN204649314U (en) * | 2015-04-10 | 2015-09-16 | 广西鱼峰水泥股份有限公司 | Winding motor carbon brush device for monitoring temperature |
| CN205748480U (en) * | 2016-06-15 | 2016-11-30 | 湖南省湘电试验研究院有限公司 | A kind of generator carbon brush electric current and on-line temperature monitoring and prior-warning device |
| CN206135169U (en) * | 2016-11-09 | 2017-04-26 | 三峡大学 | Novel collecting ring |
| CN106655636A (en) * | 2016-12-13 | 2017-05-10 | 北京三电机系统有限责任公司 | Collecting ring apparatus and wind driven generator |
| CN206504794U (en) * | 2016-12-26 | 2017-09-19 | 大唐陕西发电有限公司渭河热电厂 | A kind of generator carbon brush temperature observation circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294292A (en) * | 2021-06-30 | 2021-08-24 | 北京金风科创风电设备有限公司 | Control method, device, system, equipment and medium of wind generating set |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181207 |
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| RJ01 | Rejection of invention patent application after publication |