CN202250608U - Management and optimal control system for yaw sector of wind generating set - Google Patents
Management and optimal control system for yaw sector of wind generating set Download PDFInfo
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- CN202250608U CN202250608U CN2011203095024U CN201120309502U CN202250608U CN 202250608 U CN202250608 U CN 202250608U CN 2011203095024 U CN2011203095024 U CN 2011203095024U CN 201120309502 U CN201120309502 U CN 201120309502U CN 202250608 U CN202250608 U CN 202250608U
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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
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model relates to a management and optimal control system for a yaw sector of a wind generating set. The system comprises a yaw sector position detection module, a sector control policy module and a control mode switching module, wherein the yaw sector position detection module is used for measuring the current position of a cabin through a sensor and judging whether the cabin enters a specific sector; the sector control policy module is used for storing a specific control algorithm of each sector; and the control mode switching module is used for switching to the corresponding control algorithm according to the position of the entering sector of the cabin, and outputting a control signal. By applying the system to the conventional horizontal-shaft wind generating set, the operating capacity of the set in a wind field under the complex terrain condition can be improved, operating loads are reduced, an effect of controlling a fan in the wind field in an intertidal zone is optimized, and the utilization efficiency of wind energy is improved.
Description
Technical field
The utility model relates to a kind of wind generating set yaw sector management and optimization control system.
Background technique
The modern horizontal axis wind power generating set is generally the upwind blower fan, if change of the wind, impeller swept surface and wind direction out of plumb; Not only power output reduces, and the load of bearing is more abominable, follows the tracks of wind direction so need active yaw system; Drive the cabin around the rotation of tower center line; Make the impeller swept surface vertical, reduce performance load, obtain maximum kinetic energy with wind direction.
Along with the development of wind-powered electricity generation industry, increasing wind field is built the area or the intertidal zone of terrian condition more complicated in.Area with a varied topography; Air-flow is because of receiving the influence of surrounding terrain; Wind speed and direction all will change a lot, and the mean wind velocity that causes some orientation wind is lower and turbulence intensity is very big, if the blower fan driftage gets into these zones; Fatigue load can be big a lot of during operation, have a strong impact on the working life of blower fan.For the intertidal zone wind field, daytime, mostly wind was to blow to from the sea land (sea wind); At night, wind then blows to sea (land wind) from land.Because the Bai Tianhai land temperature difference is big, and land, sea at the night temperature difference is less, and general sea wind is more much bigger than land wind, and the air tightness of corresponding sky also has difference.If adopt same control curve can cause the wind energy utilization of blower fan on the low side to sea wind and land wind in the fan operation process.
To the problems referred to above; How to found a kind of unit that guarantees and in running, to avoid the big fatigue load that bring in the zone of high turbulent flow; Use operation and the controlling schemes that designs separately in the back, zone preferably in the wind energy quality; Improving the new wind generating set yaw sector management and the optimization control system of the Wind Power Utilization efficient of unit, is one of important subject of current industry.
The model utility content
The technical problem that the utility model will solve provides a kind of wind generating set yaw sector management and optimization control system; Make it can guarantee that unit can avoid the big fatigue load that bring in the zone of high turbulent flow in running; Use operation and the controlling schemes that designs separately in the back, zone preferably in the wind energy quality, improve the Wind Power Utilization efficient of unit.
For solving the problems of the technologies described above, a kind of wind generating set yaw sector management of the utility model and optimization control system comprise: through sensor measurement cabin current location, judge whether to get into the driftage sector position testing module of particular sector; Store the sector control strategy module of each specific control algorithm in sector; And switch to corresponding control algorithm and export the control mode handover module of control signal according to the sector position that the cabin gets into.
As a kind of improvement of the utility model, described sensor is the sensor that is installed on the driftage bearing, or is the original sensor of yaw system.
Described sensor is an absolute valve circumvolve coder.
Described control signal comprises feather control signal and generator electromagnetic torque control signal, transfers to the pitch-variable system and the converter system of wind power generating set respectively through communication loop.
Described control mode handover module and sector control strategy module all are arranged among the PLC of wind power generating set master control system.
After adopting such design; With the utility model wind generating set yaw sector management and optimization control system; Be applied to the modern horizontal axis wind power generating set, can improve the operating conditions of the interior unit of wind field of complicated topographical conditions, reduce performance load; Optimize the control effect of intertidal zone wind field blower fan, improve Wind Power Utilization efficient.
Description of drawings
Above-mentioned only is the general introduction of the utility model technological scheme, in order more to know the technological means of understanding the utility model, below in conjunction with accompanying drawing and embodiment the utility model is done further to specify.
Fig. 1 is the composition schematic representation of the utility model wind generating set yaw sector management and optimization control system.
Embodiment
See also shown in Figure 1ly, the utility model wind generating set yaw sector management and optimization control system comprise driftage sector position testing module, control mode handover module and sector control strategy module.
Wherein, driftage sector position testing module mainly through sensor measurement cabin current location, judges whether to get into specific sector, for the control mode handover module provides foundation.Sensor is preferably absolute valve circumvolve coder, can be arranged on separately on the driftage bearing, also can use the sensor of existing yaw system, and existing yaw system measurement signal is handled the absolute position of confirming present cabin.
The specific control algorithm in each sector of control strategy module stores, sector mainly is feather control algorithm and the generator electromagnetic torque control algorithm of formulating according to the wind characteristic of different sectors.
The control mode handover module is to switch to corresponding control algorithm and export control signal according to the sector position that the cabin gets into; For example as shown in the figure; With feather control signal and generator electromagnetic torque control signal; Transfer to the pitch-variable system and the converter system of wind power generating set respectively through communication loop, carry out corresponding action, realize control target.
Control mode handover module and sector control strategy module all are arranged among the PLC of wind power generating set master control system.
When using the utility model wind generating set yaw sector management and optimization control system; At first need all inswept spatial division sectors of wind generating set yaw; The absolute location coordinates of sector is consistent with the coordinate of yaw system, and each sector particular location parameter is arranged in the driftage sector position testing module.
For land wind field, analyze wind field meteorological data and wind rose for many years, according to the size of mean wind velocity and turbulence intensity, in conjunction with the complexity of surrounding terrain, the different sectors of the inswept spatial division of blower fan driftage.
For the intertidal zone wind field, at first to carry out the sector and divide according to border, extra large land, land sector part is again according to meteorological data and wind rose further segment for many years.
Specifically, if the turbulence intensity of certain wind direction more than 20%, then can be divided into a sector by 16 degree greater than the average turbulence intensity of wind field about this direction, be advisable to be not less than 32 degree in each sector, and the sector sum is advisable to be no more than 6.
Afterwards, move and control algorithm according to the wind energy characteristics design of each sector, and it is deposited in the control strategy module of sector.Operation and control algorithm specifically can comprise feather control algorithm and generator torque control algorithm.
For moment of torsion control, after vane airfoil profile is confirmed, can calculate the optimum power coefficient C of unit
P maxAnd corresponding tip speed ratio value λ
MaxVelocity ratio G in conjunction with radius R, air density ρ and the gear-box of impeller can obtain the best proportion coefficient
When fan operation is being incorporated into the power networks state between rotating speed and the rated speed, can calculate generator different rotating speeds ω
gThe time optimum electromagnetic torque
For the land counterpart blower fan, if get into the big sector of turbulence intensity, then adopt and fall the power power generation strategies, choose lower C
p(λ) value calculating K
Opt, reduce the generator power upper limit set value simultaneously, make variable blade control system when lower wind speed, just begin to become oar, increase propeller pitch angle, thereby reduce complete machine operation fatigue load, prolong fan life.If blower fan gets into wind energy mass ratio sector preferably, then switch back original control strategy.
For the intertidal zone blower fan, because marine current density ρ
SeaGreater than land ρ
LandSo, for the optimum power coefficient C of same vane airfoil profile
P maxAnd corresponding tip speed ratio value λ
MaxCan be different.Therefore,, adopts by blower fan the K different when getting into the sea wind sector with land sector
OptThe electromagnetic torque of value control generator, and adopt the change oar control algorithm that is complementary with it, thus be beneficial to fan operation in optimum wind energy absorbing state, improve the wind energy utilization of blower fan.
When system moves; Driftage sector position testing module detects the current position to wind of draught fan impeller in real time; And the current sector that gets into of definite blower fan; The control mode handover module switches to corresponding operation and control algorithm according to the sector that is got into afterwards, and exports control signal according to the result and control.
Realize the utility model driftage sector management system optimizing control with software, same type is carried out simulation study as peripheral control unit.Simulated conditions is: in IEC3 class wind field, and the controller that traditional controller and the utility model the are realized test of comparing.For land blower fan, avoid blade local fatigue load data that the big sector of turbulence intensity obtains shown in form 1 through the utility model method.
The contrast of table 1 fatigue load data
From the data of table 1 can find out adopt the utility model method after, the performance of wind power generating set will be significantly improved.
The above; It only is the preferred embodiment of the utility model; Be not that the utility model 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 the protection domain of the utility model.
Claims (5)
1. wind generating set yaw sector management and optimization control system is characterized in that comprising:
Through sensor measurement cabin current location, judge whether to get into the driftage sector position testing module of particular sector;
Store the sector control strategy module of each specific control algorithm in sector; And
The sector position that gets into according to the cabin switches to corresponding control algorithm and exports the control mode handover module of control signal.
2. wind generating set yaw sector management according to claim 1 and optimization control system is characterized in that described sensor is to be installed at the sensor of driftage on the bearing, or the sensor that carries for yaw system.
3. wind generating set yaw sector management according to claim 2 and optimization control system is characterized in that described sensor is an absolute valve circumvolve coder.
4. wind generating set yaw sector management according to claim 1 and optimization control system; It is characterized in that described control signal comprises feather control signal and generator electromagnetic torque control signal, transfers to the pitch-variable system and the converter system of wind power generating set respectively through communication loop.
5. wind generating set yaw sector management according to claim 1 and optimization control system is characterized in that described control mode handover module and sector control strategy module all are arranged among the PLC of wind power generating set master control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203095024U CN202250608U (en) | 2011-08-23 | 2011-08-23 | Management and optimal control system for yaw sector of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203095024U CN202250608U (en) | 2011-08-23 | 2011-08-23 | Management and optimal control system for yaw sector of wind generating set |
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| Publication Number | Publication Date |
|---|---|
| CN202250608U true CN202250608U (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203095024U Expired - Lifetime CN202250608U (en) | 2011-08-23 | 2011-08-23 | Management and optimal control system for yaw sector of wind generating set |
Country Status (1)
| Country | Link |
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| CN (1) | CN202250608U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305179A (en) * | 2011-08-23 | 2012-01-04 | 国电联合动力技术有限公司 | Yawing sector management and optimized control system and method for wind generating set |
| WO2022188392A1 (en) * | 2021-03-08 | 2022-09-15 | 新疆金风科技股份有限公司 | Wind turbine generator system control method and control device |
-
2011
- 2011-08-23 CN CN2011203095024U patent/CN202250608U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305179A (en) * | 2011-08-23 | 2012-01-04 | 国电联合动力技术有限公司 | Yawing sector management and optimized control system and method for wind generating set |
| CN102305179B (en) * | 2011-08-23 | 2013-12-18 | 国电联合动力技术有限公司 | Yawing sector management and optimized control system and method for wind generating set |
| WO2022188392A1 (en) * | 2021-03-08 | 2022-09-15 | 新疆金风科技股份有限公司 | Wind turbine generator system control method and control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NATIONAL ELECTRIC NEW ENERGY TECHNOLOGY INSTITUTE Effective date: 20130624 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130624 Address after: 100000 Beijing City, Zhongguancun, South Street, building B, building No., level 56, level 16 Patentee after: Guodian United Power Technology Co., Ltd. Patentee after: Guodian New Energy Technology Institute Address before: 100000 Beijing City, Zhongguancun, South Street, building B, building No., level 56, level 16 Patentee before: Guodian United Power Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |