CN104865084B - A kind of Wind turbines overspeed test method of testing - Google Patents
A kind of Wind turbines overspeed test method of testing Download PDFInfo
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- CN104865084B CN104865084B CN201510219528.2A CN201510219528A CN104865084B CN 104865084 B CN104865084 B CN 104865084B CN 201510219528 A CN201510219528 A CN 201510219528A CN 104865084 B CN104865084 B CN 104865084B
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Abstract
The invention discloses a kind of Wind turbines overspeed test method of testing, step is：(1) rotational speed setup limit value in setting primary control program, is larger than hypervelocity module and sets alarming value, shielding current transformer hypervelocity failure function and set grid-connection function；(2) include：Hypervelocity judges that limit value is less than hypervelocity module and sets alarming value in A setting primary control programs, impeller is dallied, when rotating speed, which reaches hypervelocity, judges limit value, is transfinited failure if primary control program quotes software rotating speed, and the judgement primary control program limit value set-up function that exceeds the speed limit is effective；B setting hypervelocity judges that limit value is more than hypervelocity module and sets alarming value, impeller is dallied, and when rotating speed, which reaches hypervelocity module, sets alarming value, if theft-resistant link chain module quotes hypervelocity failure, judges that theft-resistant link chain module overspeed detection function is effective.The present invention not only demonstrates the validity of primary control program hypervelocity limit value setting and theft-resistant link chain module overspeed detection function, also demonstrates wind turbine transmission chain and meets hypervelocity to 20rpm requirement, it is to avoid major accident generation.
Description
Technical field
The present invention relates to technical field of wind power, more particularly to a kind of Wind turbines overspeed test method of testing.
Background technology
With China's Wind turbines installed capacity sustainable growth, run time gradually increases, because different reasons cause
The phenomenon of existing Wind turbines hypervelocity is more and more, or even occurs in that and cause down the generation of the major accidents such as tower because of hypervelocity.For
Avoid the occurrence of due to serious accident caused by hypervelocity, when exceed the speed limit, Wind turbines detect that the protection act exceeded the speed limit is necessary
Correctly to perform.In order to which whether the function for the protection act for verifying Wind turbines detection hypervelocity is intact, it is necessary to carry out wind turbine
The overspeed test test of group.
Master control system realizes redundancy and signal inspection to two tachometer signals of impeller and generator in megawatt-level wind unit
Look into.Referring to the drawings shown in 1, the rotating speed of impeller is measured by the incremental rotary encoder installed in slip ring rear end, measured
Signal be directly inputted to hypervelocity module, hypervelocity module can set the limit value that triggering exceeds the speed limit, while the module that exceeds the speed limit is by the rotating speed
Signal is input to master control system, is used as the Redundant Control of rotating speed；The rotating speed of generator passes through installed in generator amature rear end
Incremental rotary encoder is measured, measured signal be input to converter control system be used for realize control to generator
System, while the tach signal is transferred to master control system by converter control system by way of bus communication again.It is soft in control
The limit value of overspeed protection is set in part program, and the limit value will be less than hypervelocity module acceleration alert value.When blower fan hypervelocity, and rotating speed
During more than this limit value, wind-driven generator has two separate systems to carry out the rotation of termination machine rotor, to prevent from surpassing
Speed, triggers the limit value of controller in master control system first, and controller quotes software hypervelocity failure, quick shutdown；Work as controller
During alarm failure, hypervelocity module says the word to controller, while triggering theft-resistant link chain, starting emergency shutdown order makes blower fan stop rotation
Turn.
Scene carries out the hypervelocity test of megawatt-level wind unit at present, be by reduce hypervelocity module triggering hypervelocity limit value or
By the way that slip ring is pulled down from gear-box, slip ring is rotated, makes rotating speed more than 20rpm Times hypervelocity failure, it is actual not go to
20rpm, current this method of testing can only deserve to be called simulation test, it is impossible to which test is extreme to the actual hypervelocity of Wind turbines
Operating mode, it is impossible to verify whether wind turbine transmission chain disclosure satisfy that hypervelocity to 20rpm requirement, therefore existing method of testing is present
Defect.
A kind of simple comprehensive new Wind turbines overspeed test method of testing how is founded, is that current industry pole need to change
The target entered.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of simple comprehensively Wind turbines overspeed test method of testing, make
It overcomes the shortcomings of existing Wind turbines overspeed test method of testing.
In order to solve the above technical problems, a kind of Wind turbines overspeed test method of testing of the invention, methods described step is：
(1) wheel speed in setting Wind turbines primary control program is larger than the setting report of hypervelocity module to threshold value
Alert value, shields the hypervelocity failure function of current transformer, and closes the grid-connected function of Wind turbines；
(2) primary control program hypervelocity limit value is judged by setting the judgement limit value of impeller hypervelocity in Wind turbines primary control program
Whether set-up function and theft-resistant link chain module overspeed detection function are effective, and specific method includes：
Impeller hypervelocity judges that limit value is less than the setting alarming value of hypervelocity module in A, setting primary control program, starts wind turbine
Group, makes impeller dally, when the hypervelocity that rotating speed reaches primary control program judges limit value, if primary control program quote software rotating speed transfinite it is former
Barrier, and Wind turbines quick shutdown, judge that primary control program hypervelocity limit value set-up function is effective；Turn if primary control program does not quote software
Speed is transfinited failure, and Wind turbines are not shut down, judges that primary control program hypervelocity limit value set-up function is invalid；
Impeller hypervelocity judges that limit value is more than the setting alarming value of hypervelocity module in B, setting primary control program, starts wind turbine
Group, makes impeller dally, when rotating speed reaches the setting alarming value of hypervelocity module, if theft-resistant link chain module quotes hypervelocity failure, triggering
Theft-resistant link chain is acted, and makes Wind turbines emergency shutdown, judges that theft-resistant link chain module overspeed detection function is effective；If theft-resistant link chain module is not reported
It has the failure that exceeds the speed limit, theft-resistant link chain is failure to actuate, judges that theft-resistant link chain module overspeed detection function is invalid.
As a modification of the present invention, before the step (1), in addition to simulation test step, by slip ring from gear
Pulled down on case, rotate slip ring, its rotating speed is judged limit value more than the setting alarming value of hypervelocity module and the hypervelocity of primary control program：
If Wind turbines quote software rotating speed transfinite failure and theft-resistant link chain hypervelocity failure, judge primary control program hypervelocity limit value set
Determine function and theft-resistant link chain module overspeed detection function is effective；
If Wind turbines do not quote software rotating speed transfinite failure and theft-resistant link chain hypervelocity failure, judge primary control program hypervelocity limit
It is worth set-up function and theft-resistant link chain module overspeed detection function is invalid；
If Wind turbines, which only quote software rotating speed, to transfinite failure, judge that primary control program hypervelocity limit value set-up function is effectively pacified
Full chain module overspeed detection function is invalid；
If Wind turbines only quote theft-resistant link chain hypervelocity failure, judge that primary control program hypervelocity limit value set-up function is invalid and safe
Chain module overspeed detection function is effective.
Further improve, before using methods described test, confirm the back-up source work of paddle change system of wind turbines
It is whether normal, if normally, starting test；If abnormal, need to be investigated, the row test again after Resolving probiems.
Further improve, the setting alarming value of hypervelocity module is 20rpm in the step (1), the impeller of primary control program turns
Speed is 20.5rpm to threshold value.
Further improve, hypervelocity module sets alarming value to be 20rpm in the step (2), wherein, master control journey in A methods
The hypervelocity of sequence judges limit value for 19.5rpm；The hypervelocity of primary control program judges limit value for 20.5rpm in B methods.
Further improve, the test is carried out when wind speed is 4-8m/s.
Using above-mentioned technical scheme, the present invention at least has advantages below：
1. the present invention not only demonstrates primary control program by the extreme operating condition that actual test impeller exceeds the speed limit on Wind turbines
The validity for limit value setting and the theft-resistant link chain module overspeed detection function of exceeding the speed limit, also demonstrating whole wind turbine transmission chain can expire
Foot hypervelocity to 20rpm requirement, and can safe shutdown, comprehensively whole Wind turbines overspeed test is tested, it is to avoid
Because Wind turbines exceed the speed limit and fall the generations of the accidents such as tower caused by corresponding protection mechanism is failure to actuate.
2. the present invention before hypervelocity test by confirming that paddle change system of wind turbines back-up source is working properly, it is ensured that
In case of emergency, Wind turbines can carry out emergency feathering using pitch-controlled system back-up source, further ensure wind turbine
Safety of the group in whole test process.
Brief description of the drawings
Above-mentioned is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, below
With reference to accompanying drawing, the present invention is described in further detail with embodiment.
Fig. 1 is the structure chart of existing Wind turbines rotary speed test system；
Fig. 2 is the flow chart of Wind turbines overspeed test method of testing of the present invention.
Embodiment
Wind turbines overspeed test method of testing of the present invention, is the related parameter values in Wind turbines primary control program is set
On the basis of, impeller of wind turbine set is dallied, when rotating speed reaches setting value, whether observation primary control program or theft-resistant link chain are quoted
Exceed the speed limit failure, Wind turbines whether quick shutdown, and then judge primary control program hypervelocity limit value setting and theft-resistant link chain module exceed the speed limit inspection
Brake whether validity, while can also demonstrate whole wind turbine transmission chain meet hypervelocity to 20rpm requirement, and energy
Enough safe shutdowns, overcome the incomplete defect of current simulation test.
Referring to the drawings shown in 2, Wind turbines overspeed test method of testing of the present invention, specific testing procedure is as follows：
1st, it is in Wind turbines under maintenance state, confirms whether the work of paddle change system of wind turbines back-up source is normal,
If normal, start test；If abnormal, need to be investigated, the row test again after Resolving probiems；
2nd, hypervelocity module wiring is checked, confirms that hypervelocity module sets alarming value to be 20rpm；
3rd, simulation test：Slip ring is pulled down from gear-box, slip ring is rotated, makes its rotating speed more than 20rpm, Wind turbines report
It has software hypervelocity failure and theft-resistant link chain hypervelocity failure, confirms that the primary control program hypervelocity limit value in controller is set and theft-resistant link chain module
Overspeed detection function is normal；
4th, slip ring is reinstalled on gear-box, be revised as rotational speed setup limit value by 18rpm in primary control program
20.5rpm, shields the hypervelocity failure function of current transformer, and forbids the grid-connected function of Wind turbines to open, and 4-8m/s is in wind speed
Period, Wind turbines is dallied, Wind turbines rotational speed limit is stepped up, when the impeller that rotating speed reaches primary control program surpasses
Speed is when judging limit value 19.5rpm, and primary control program, which quotes software rotating speed, to transfinite failure, Wind turbines quick shutdown；Again by master control journey
The hypervelocity of sequence judges that limit value is revised as 20.5rpm by 19.5rpm, under same precondition, is again started up blower fan and carries out sky
Turn, when rotating speed reaches 20rpm, theft-resistant link chain module quotes hypervelocity failure, triggering theft-resistant link chain action, Wind turbines emergency shutdown.
Above-mentioned method of testing not only demonstrates primary control program hypervelocity limit value setting and theft-resistant link chain module overspeed detection function
Validity, while also demonstrating whole wind turbine transmission chain disclosure satisfy that hypervelocity to 20rpm requirement, and being capable of safe stopping
Machine.
Embodiment one
Hypervelocity test process in, on Wind turbines Debugging interface pay close attention to wheel speed rotor_speed_1 and
Rotor_speed_2, generator speed converter_motor_speed, the change propeller angle pitch_position_ of 3 axles
1st, the key message such as pitch_position_2 and pitch_position_3, wind speed wind_speed.Start Twincat simultaneously
Scope view softwares, add above-mentioned variable, in test process, gather the test data of above variable, for follow-up point
Analysis.
Wind turbines are transformed into maintenance state, pitch-controlled system back-up source tested, it is ensured that in case of emergency,
Wind turbines can carry out emergency feathering using pitch-controlled system back-up source.Hypervelocity module wiring is checked, hypervelocity module is confirmed
Setting alarming value is 20rpm.Slip ring is pulled down from gear-box, slip ring is rotated, makes rotating speed more than 20rpm, if blower fan quote it is soft
Part hypervelocity failure and theft-resistant link chain hypervelocity failure, can confirm that the primary control program hypervelocity limit value in controller is set and theft-resistant link chain module is super
Speed detection function is normal.
Slip ring is reinstalled on gear-box, by rotational speed setup main_loop_rotor_speed_ in primary control program
The limit value of demand variables is revised as 20.5rpm, shielding current transformer hypervelocity failure error_converter_fault_ by 18rpm
Overspeed, false is often set to by the variable." whether to grid-connected instruction under generating state " is clicked on Debugging interface, by it
Be set to 0 so that Wind turbines reach it is also not grid-connected during grid-connected rotating speed, only dallied.Rotating speed is set to 10rpm first,
When wheel speed reaches 10rpm, to ensure safety, rotational speed limit is slowly decontroled, 20rpm is progressively amplified to, works as wheel speed
The rotating speed failure error_rotor_speed_critical_speed that transfinites is triggered in primary control program during more than 19.5rpm, touches
Wind turbines quick shutdown after hair.The hypervelocity of primary control program is judged into limit value init_rotor_speed_critical_ again
Limit is revised as 20.5rpm by 19.5rpm, under same precondition, is again started up blower fan, when rotating speed reaches 20rpm
When, theft-resistant link chain module quotes hypervelocity failure so that theft-resistant link chain disconnects, Wind turbines emergency shutdown.
And in test process, if there is fortuitous event, the emergency stop button of Wind turbines can be pressed immediately, profit
Feathering emergency shutdown is carried out with the back-up source of pitch-controlled system, it is ensured that safety of the Wind turbines in whole test process.
Whole test process of the invention had both demonstrated primary control program hypervelocity limit value setting and theft-resistant link chain module overspeed detection work(
The validity of energy, also demonstrates whole wind turbine transmission chain and disclosure satisfy that hypervelocity to 20rpm requirement, and being capable of safe stopping
Machine, comprehensively test whole Wind turbines overspeed test, it is to avoid because Wind turbines exceed the speed limit and protect machine accordingly
Structure falls the generation of the accident such as tower caused by being failure to actuate.
After above-mentioned whole test process is normal, the limit value and variable changed in primary control program are recovered, so far
Whole test process is finished.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, this
Art personnel make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above, all fall within this hair
In bright protection domain.
Claims (6)
1. a kind of Wind turbines overspeed test method of testing, it is characterised in that methods described step is：
(1) wheel speed in setting Wind turbines primary control program is larger than the setting alarming value of hypervelocity module to threshold value,
The hypervelocity failure function of current transformer is shielded, and closes the grid-connected function of Wind turbines；
(2) judge that primary control program hypervelocity limit value is set by setting the judgement limit value of impeller hypervelocity in Wind turbines primary control program
Whether function and theft-resistant link chain module overspeed detection function are effective, and specific method includes：
Impeller hypervelocity judges that limit value is less than the setting alarming value of hypervelocity module in A, setting primary control program, starts Wind turbines, makes
Impeller dallies, and when the hypervelocity that rotating speed reaches primary control program judges limit value, is transfinited failure if primary control program quotes software rotating speed, and
Wind turbines quick shutdown, judges that primary control program hypervelocity limit value set-up function is effective；Surpass if primary control program does not quote software rotating speed
Failure is limited, and Wind turbines are not shut down, judge that primary control program hypervelocity limit value set-up function is invalid；
Impeller hypervelocity judges that limit value is more than the setting alarming value of hypervelocity module in B, setting primary control program, starts Wind turbines, makes
Impeller dallies, and when rotating speed reaches the setting alarming value of hypervelocity module, if theft-resistant link chain module quotes hypervelocity failure, triggers theft-resistant link chain
Action, makes Wind turbines emergency shutdown, judges that theft-resistant link chain module overspeed detection function is effective；If theft-resistant link chain module does not quote hypervelocity
Failure, theft-resistant link chain is failure to actuate, and judges that theft-resistant link chain module overspeed detection function is invalid.
2. Wind turbines overspeed test method of testing according to claim 1, it is characterised in that before the step (1),
Also include simulation test step, slip ring is pulled down from gear-box, rotate slip ring, its rotating speed is exceeded the setting report of hypervelocity module
Alert value and the hypervelocity of primary control program judge limit value：
If Wind turbines quote software rotating speed transfinite failure and theft-resistant link chain hypervelocity failure, judge primary control program hypervelocity limit value setting work(
Can be effective with theft-resistant link chain module overspeed detection function；
If Wind turbines do not quote software rotating speed transfinite failure and theft-resistant link chain hypervelocity failure, judge primary control program hypervelocity limit value set
Determine function and theft-resistant link chain module overspeed detection function is invalid；
If Wind turbines, which only quote software rotating speed, to transfinite failure, primary control program hypervelocity limit value set-up function effectively theft-resistant link chain is judged
Module overspeed detection function is invalid；
If Wind turbines only quote theft-resistant link chain hypervelocity failure, judge primary control program hypervelocity limit value set-up function is invalid and theft-resistant link chain mould
Block overspeed detection function is effective.
3. Wind turbines overspeed test method of testing according to claim 1, it is characterised in that surveyed using methods described
Before examination, confirm whether the back-up source work of paddle change system of wind turbines is normal, if normally, starting test；If abnormal,
It need to be investigated, the row test again after Resolving probiems.
4. Wind turbines overspeed test method of testing according to claim 1, it is characterised in that surpass in the step (1)
The setting alarming value of fast module is 20rpm, and the wheel speed of primary control program is 20.5rpm to threshold value.
5. the Wind turbines overspeed test method of testing according to claim 1 or 4, it is characterised in that in the step (2)
The module that exceeds the speed limit sets alarming value to be 20rpm, wherein, the hypervelocity of primary control program judges limit value for 19.5rpm in A methods；In B methods
The hypervelocity of primary control program judges limit value for 20.5rpm.
6. Wind turbines overspeed test method of testing according to claim 1, it is characterised in that the test is in wind speed
Carried out during 4-8m/s.
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| CN105857096A (en) * | 2016-05-03 | 2016-08-17 | 北京新能源汽车股份有限公司 | Extended range type electric automobile and power generation controlling method thereof |
| CN112975956B (en) * | 2021-02-04 | 2022-05-13 | 内蒙古汇能集团长滩发电有限公司 | Inspection robot and testing method and testing device thereof |
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| CN102155356A (en) * | 2011-03-22 | 2011-08-17 | 国电联合动力技术有限公司 | Method for controlling running of wind generating set based on speed-regulating front end of electromagnetic coupler |
| US8112239B2 (en) * | 2006-12-18 | 2012-02-07 | Vestas Wind Systems A/S | Method and system of performing a functional test of at least one embedded sub-element of a wind turbine |
| CN102354125A (en) * | 2011-10-11 | 2012-02-15 | 国电联合动力技术有限公司 | Comprehensive simulation system for low-voltage passing of wind turbine and method |
| CN102361324A (en) * | 2011-10-17 | 2012-02-22 | 国电联合动力技术有限公司 | Method for regulating terminal voltage by reactive power support of double-fed wind generator unit and system thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5808605B2 (en) * | 2011-08-17 | 2015-11-10 | 株式会社日立製作所 | Abnormality detection / diagnosis method and abnormality detection / diagnosis system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8112239B2 (en) * | 2006-12-18 | 2012-02-07 | Vestas Wind Systems A/S | Method and system of performing a functional test of at least one embedded sub-element of a wind turbine |
| CN102155356A (en) * | 2011-03-22 | 2011-08-17 | 国电联合动力技术有限公司 | Method for controlling running of wind generating set based on speed-regulating front end of electromagnetic coupler |
| CN102354125A (en) * | 2011-10-11 | 2012-02-15 | 国电联合动力技术有限公司 | Comprehensive simulation system for low-voltage passing of wind turbine and method |
| CN102361324A (en) * | 2011-10-17 | 2012-02-22 | 国电联合动力技术有限公司 | Method for regulating terminal voltage by reactive power support of double-fed wind generator unit and system thereof |
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Effective date of registration: 20191205 Address after: 071051 Baoding City, Hebei high tech Development Zone, Wind Street No. 88 Patentee after: Guodian United Power Technology (Baoding) Co., Ltd. Address before: 100000, No. 1, building 16, No. 8 West Fourth Ring Road, Beijing, Haidian District Patentee before: Guodian United Power Technology Co., Ltd. |
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Address after: 071051 No.88, Fengfeng street, high tech Development Zone, Baoding City, Hebei Province Patentee after: Guoneng United Power Technology (Baoding) Co.,Ltd. Address before: 071051 No.88, Fengfeng street, high tech Development Zone, Baoding City, Hebei Province Patentee before: GUODIAN UNITED POWER TECHNOLOGY (BAODING) Co.,Ltd. |