CN102801380A - Damping torque correction control method and device for transmission chain of wind generation set - Google Patents
Damping torque correction control method and device for transmission chain of wind generation set Download PDFInfo
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- CN102801380A CN102801380A CN2012103071372A CN201210307137A CN102801380A CN 102801380 A CN102801380 A CN 102801380A CN 2012103071372 A CN2012103071372 A CN 2012103071372A CN 201210307137 A CN201210307137 A CN 201210307137A CN 102801380 A CN102801380 A CN 102801380A
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention provides a damping torque correction method and device for a transmission chain of a wind generation set. The damping torque correction method comprises the following steps of: acquiring the rotating speed and the torque of a power generator in real time; carrying out filtering processing on rotating speed signals of the power generator; calculating to obtain a primary damping torque rDamper0; calculating a damping torque rDamper; comparing rDamper with the limit value of the damping torque, taking the rDamper as the limit value if the rDamper exceeds the limit value range, and if not, keeping the rDamper unchanged; and if the rDamper takes the limit values in two periods, correcting the damping torque of the next period to be zero, and if not, outputting the rDamper to a main control PLC (Programmable Logic Controller). The damping torque correction control device comprises a motor encoder, a rotating speed processing circuit, a rotating speed filter, a damping torque primary processor, a damping correction controller and the main control PLC. The damping torque correction control method and device disclosed by the invention have the advantages of solving the rotating speed fluctuation problem of the wind generation set, reducing the fatigue load of the wind generation set and prolonging the service life of the wind generation set.
Description
Technical field
The present invention relates to technical field of wind power generation, particularly relate to a kind of wind-powered electricity generation unit driving-chain damping torque corrected control method and device.
Background technology
Along with wind power generation constantly develops, the wind energy turbine set installed capacity is risen year by year in recent years, and the shared ratio of wind power generation is increasing, becomes a kind of conventional energy resource gradually.The control of blower fan is one of wind generator system core content, promptly realizes catching of wind energy and is converted into electric energy through the control blower fan.The control of blower fan generally adopts the method for rotational speed and torque curve to control, owing to receive the influence of the intrinsic 1P of unit, 3P, 6P, driving-chain frequency, the wind-driven generator rotating speed can produce fluctuation.In order to eliminate the generator speed fluctuation, need on driving-chain, increase damping torque, thereby make generator speed steady, the unit fatigue load is reduced, and improves the life-span of unit.
To the problem of generator speed fluctuation, mainly operate and realize subduing of generator speed fluctuation at present through simple Filtering Processing.But, find that in practice this mode of subduing causes serious delay consequence easily, and make that the generator speed fluctuation is bigger.
Therefore; How to design a kind of safelyr, reliable, can be really effectively eliminate the generator speed fluctuation, reduce the unit fatigue load; Prolonging unit the wind-powered electricity generation unit driving-chain damping torque corrected control method and the device in useful life, is one of important improvement target of current this area.
Summary of the invention
The present invention provides a kind of wind-powered electricity generation unit driving-chain damping torque corrected control method and device; Purpose is through the processing to the driving-chain damping torque, subdues the fluctuation of speed under high rotating speed of wind-powered electricity generation unit, makes the even running of wind-powered electricity generation unit; Reduce the fatigue load of unit, promote the unit energy output.
For solving the problems of the technologies described above, the invention provides a kind of wind-powered electricity generation unit driving-chain damping torque and proofread and correct control method, may further comprise the steps:
A, gather generator speed and torque in real time;
B, the generator speed signal is carried out Filtering Processing;
C, calculate preliminary damping torque rDamper0;
D, calculating damping torque rDamper, computing formula does
rDamper=rDamper0*rDTDSchedFactor0，
Wherein, rDTDSchedFactor0=LIMIT (0, rDTDSchedFactor, 1)
rDTDSchedFactor=rQdem0/MAX(1.0,rMaxDTDSchedTorqueInNM)，
RQdem0 is the actual measurement generator torque,
RMaxDTDSchedTorqueInNM gets nominal torque half the of generator,
MAX () gets peaked function,
LIMIT () is the limit value function;
E, rDamper and damping torque limit value that step D is obtained compare, if rDamper in limits, then the rDamper value is constant, if rDamper exceeds limits, then rDamper gets limit value;
If F rDamper gets limit value in two cycles, then the correction of the damping torque of following one-period is 0, otherwise, export rDamper to main control PLC.
As further improvement, the value of described damping torque limit value be the generator nominal torque ± 1%.
In addition, the present invention also provides a kind of wind-powered electricity generation unit driving-chain damping torque correction control apparatus, comprising: the motor encoder that obtains generator speed; Gather the rotating speed treatment circuit of generator speed signal in real time; The generator speed signal is carried out the rotating speed filter of Filtering Processing; Calculate the damping torque preliminary treatment device of preliminary damping torque; Built-in computing module, limit value comparison module and correction module, and calculate the damping correcting controller of damping torque according to preliminary damping torque; And provide generator real-time torque, and control the main control PLC of generator speed according to damping torque.
Compared with prior art, the present invention has following beneficial effect:
1, solved wind-powered electricity generation generating unit speed fluctuation problem;
2, reduce the fatigue load of unit, prolonged the useful life of unit;
3, the present invention realizes more or less freelyly, and cost is lower, is beneficial to popularization.
Description of drawings
Above-mentioned only is the general introduction of technical scheme of the present invention, understands technological means of the present invention in order can more to know, below in conjunction with accompanying drawing and embodiment the present invention is done further detailed description.
Fig. 1 is that wind-powered electricity generation unit driving-chain damping torque correction control apparatus of the present invention is formed sketch map.
Embodiment
See also shown in Figure 1ly, wind-powered electricity generation unit driving-chain damping torque means for correcting of the present invention comprises the motor encoder, rotating speed treatment circuit, rotating speed filter, damping torque preliminary treatment device, damping correcting controller and the main control PLC that connect through circuit.
Wherein, the damping correcting controller is built-in with computing module, limit value comparison module and correction module.
Utilize said apparatus to carry out wind-powered electricity generation unit driving-chain damping torque corrected control method, may further comprise the steps:
Step 1 is gathered the generator speed signal that motor encoder obtains in real time through the rotating speed treatment circuit, and in main control PLC, reads the real-time torque of generator.
Step 2 through the rotating speed filter, for example adopts trapper, and the generator speed signal is carried out Filtering Processing.
Step 3 through damping torque preliminary treatment device, for example adopts band pass filter, and filtered tach signal is handled, and obtains preliminary damping torque rDamper0.
Step 4, the computing module that utilizes damping torque to proofread and correct PLC calculates damping torque rDamper, and computing formula does
rDamper=rDamper0*rDTDSchedFactor0，
Wherein, rDTDSchedFactor0=LIMIT (0, rDTDSchedFactor, 1)
rDTDSchedFactor=rQdem0/MAX(1.0,rMaxDTDSchedTorqueInNM)，
RQdem0 is the actual measurement generator torque,
RMaxDTDSchedTorqueInNM gets nominal torque half the of generator,
MAX () gets peaked function,
LIMIT () is the limit value function.
Step 5; Utilize damping torque to proofread and correct the limit value comparison module of PLC; RDamper and damping torque limit value that step 4 is obtained compare, generally with the generator nominal torque ± 1% be limit value: if rDamper in this limits, then the rDamper value is constant; If rDamper exceeds this limits, then rDamper gets limit value.
Step 6, the correction module that utilizes damping torque to proofread and correct PLC is proofreaied and correct rDamper: if rDamper gets limit value in two cycles, then the correction of the damping torque of following one-period is 0; Otherwise the rDamper that step 4 is obtained exports main control PLC to.
The present invention controls the fluctuation of speed of generator through said method and device, eliminates the fluctuation of generator speed, and has eliminated the consequence that postpones through the correction of last step 6; Through experiment confirm on the 1.5MW unit, effect of the present invention obviously is superior to prior art, has really realized the even running of unit; The real fatigue load that reduces unit; Prolong the useful life of unit, and cost is lower, is easy to realize and promote.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in protection scope of the present invention.
Claims (3)
1. a wind-powered electricity generation unit driving-chain damping torque is proofreaied and correct control method, it is characterized in that may further comprise the steps:
A, gather generator speed and torque in real time;
B, the generator speed signal is carried out Filtering Processing;
C, calculate preliminary damping torque rDamper0;
D, calculating damping torque rDamper, computing formula does
rDamper=rDamper0*rDTDSchedFactor0，
Wherein, rDTDSchedFactor0=LIMIT (0, rDTDSchedFactor, 1)
rDTDSchedFactor=rQdem0/MAX(1.0,rMaxDTDSchedTorqueInNM)，
RQdem0 is the actual measurement generator torque,
RMaxDTDSchedTorqueInNM gets nominal torque half the of generator,
MAX () gets peaked function,
LIMIT () is the limit value function;
E, rDamper and damping torque limit value that step D is obtained compare, if rDamper in limits, then the rDamper value is constant, if rDamper exceeds limits, then rDamper gets limit value;
If F rDamper gets limit value in two cycles, then the correction of the damping torque of following one-period is 0, otherwise, export rDamper to main control PLC.
2. wind-powered electricity generation unit driving-chain damping torque correction control method according to claim 1, the value that it is characterized in that described damping torque limit value are generator nominal torque ± 1%.
3. wind-powered electricity generation unit driving-chain damping torque correction control apparatus is characterized in that comprising:
Obtain the motor encoder of generator speed;
Gather the rotating speed treatment circuit of generator speed signal in real time;
The generator speed signal is carried out the rotating speed filter of Filtering Processing;
Calculate the damping torque preliminary treatment device of preliminary damping torque;
Built-in computing module, limit value comparison module and correction module, and calculate the damping correcting controller of damping torque according to preliminary damping torque; And
Provide generator real-time torque, and control the main control PLC of generator speed according to damping torque.
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| CN201210307137.2A CN102801380B (en) | 2012-08-24 | 2012-08-24 | Damping torque correction control method and device for transmission chain of wind generation set |
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| CN201210307137.2A CN102801380B (en) | 2012-08-24 | 2012-08-24 | Damping torque correction control method and device for transmission chain of wind generation set |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103256188A (en) * | 2013-05-17 | 2013-08-21 | 内蒙古久和能源科技有限公司 | Twisting vibration control method and device of wind generating set transmission chain |
| CN106368900A (en) * | 2016-08-31 | 2017-02-01 | 重庆科凯前卫风电设备有限责任公司 | Method, device and system for inhibiting vibration of transmission chain of wind-driven power generator unit and power generator unit |
| CN112081715A (en) * | 2020-09-07 | 2020-12-15 | 浙江浙能技术研究院有限公司 | Method for flexibly inhibiting torsional vibration of driving chain of wind generating set |
| CN113595457A (en) * | 2021-08-05 | 2021-11-02 | 浙江大学 | Wind generating set and control system thereof |
| CN113726236A (en) * | 2021-08-11 | 2021-11-30 | 上海电气风电集团股份有限公司 | Wind generating set and control system thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256188A (en) * | 2013-05-17 | 2013-08-21 | 内蒙古久和能源科技有限公司 | Twisting vibration control method and device of wind generating set transmission chain |
| CN103256188B (en) * | 2013-05-17 | 2015-08-26 | 内蒙古久和能源科技有限公司 | A kind of Torsional Vibration Control method of driving chain of wind generating set and device |
| CN106368900A (en) * | 2016-08-31 | 2017-02-01 | 重庆科凯前卫风电设备有限责任公司 | Method, device and system for inhibiting vibration of transmission chain of wind-driven power generator unit and power generator unit |
| CN106368900B (en) * | 2016-08-31 | 2019-02-01 | 重庆科凯前卫风电设备有限责任公司 | Driving chain of wind generating set vibration suppressing method, device, system and unit |
| CN112081715A (en) * | 2020-09-07 | 2020-12-15 | 浙江浙能技术研究院有限公司 | Method for flexibly inhibiting torsional vibration of driving chain of wind generating set |
| CN112081715B (en) * | 2020-09-07 | 2021-08-13 | 浙江浙能技术研究院有限公司 | Method for flexibly inhibiting torsional vibration of driving chain of wind generating set |
| CN113595457A (en) * | 2021-08-05 | 2021-11-02 | 浙江大学 | Wind generating set and control system thereof |
| CN113595457B (en) * | 2021-08-05 | 2024-03-22 | 浙江大学 | Wind generating set and control system thereof |
| CN113726236A (en) * | 2021-08-11 | 2021-11-30 | 上海电气风电集团股份有限公司 | Wind generating set and control system thereof |
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