CN104036428A - Wind measurement network optimized site selection and layout method - Google Patents
Wind measurement network optimized site selection and layout method Download PDFInfo
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- CN104036428A CN104036428A CN201410064600.4A CN201410064600A CN104036428A CN 104036428 A CN104036428 A CN 104036428A CN 201410064600 A CN201410064600 A CN 201410064600A CN 104036428 A CN104036428 A CN 104036428A
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Abstract
The invention discloses a wind measurement network optimized site selection and layout method. The method mainly comprises that distribution situation and coverage range of wind measurement towers in a current wind measurement network are analyzed; monitoring points are additionally arranged in areas without coverage of the current wind measurement network according to analysis results; the additionally arranged monitoring points are fine-adjusted according to the position of a wind power plant corresponding to the current wind measurement network; current wind measurement network verification is adopted to verify fine-adjustment results, and when the fine-adjustment results meet the preset parameters, optimization of the current wind measurement network is completed; when the fine-adjustment results do not meet the preset parameters, the process returns and the current network is optimized continuously; the parameters are preset, including coverage range and coverage wind direction of the current wind measurement network, and distance between the wind measurement towers. According to the wind measurement network optimized site selection and layout method, defects in the prior art that anti-interference capability is low, application range is small and operation difficulty is high can be overcome so that advantages of being high in anti-interference capability, large in application range and low in operation difficulty is realized.
Description
Technical field
The present invention relates to wind-power electricity generation process apoplexy monitoring resource technical field, particularly, relate to a kind of wind measurement network Optimizing Site Selection and layout method.
Background technology
China's wind-powered electricity generation enters the large-scale wind electricity base majority that large-scale development produces after the stage and is positioned at " three northern areas of China " (northwest, northeast, North China); large-scale wind electricity base is generally away from load center, and its electric power need to be transported to load center and dissolve through long-distance, high voltage.Due to intermittence, randomness and the undulatory property of wind-resources, cause the wind-powered electricity generation in large-scale wind power base to be exerted oneself fluctuation in a big way can occur thereupon, further cause the fluctuation of power transmission network charge power, to safe operation of electric network, bring series of problems.
By in October, 2013, the installed capacity of Gansu Power Grid grid connected wind power has reached 6,630,000 kilowatts, becomes the second largest main force power supply that is only second to thermoelectricity.Along with improving constantly of wind-electricity integration scale, the uncertainty of wind-power electricity generation and uncontrollability are brought problems to the safety and stability economical operation of electrical network.Wind-power electricity generation process apoplexy monitoring resource technology is studied, change is the variation tendency of interior wind energy of predict future a period of time better, thereby can to wind power, predict more accurately and proofread and correct, improve precision of prediction, promote the development of generation of electricity by new energy.
Traditional anemometer tower is built thinking and is generally independent addressing, and a wind energy turbine set is joined and built an anemometer tower, but for ultra-large type wind-powered electricity generation base, traditional anemometer tower addressing thought is both inapplicable not efficient yet.For this reason, need to introduce the construction thinking of wind measurement network, emphasis monitored area, wind-powered electricity generation base is considered as a whole, Macrocosm and microcosm combines and carries out anemometer tower and optimize distribution, the wind measurement network that formation comprises many anemometer towers, by the data aggregate between anemometer tower, apply, with minimum construction cost, realize the efficient monitoring to region wind energy resources.In actual applications, the data of wind measurement network have multiple application mode, the modes such as a plurality of wind energy turbine set as corresponding in an anemometer tower, the corresponding wind energy turbine set of a plurality of anemometer tower, the corresponding a plurality of wind energy turbine set of a plurality of anemometer tower (region).
At least there is following limitation in traditional anemometer tower independence site selecting method:
1) monitoring wind direction is limited: traditional anemometer tower is generally built in the upwind of wind energy turbine set cardinal wind, when actual wind direction and cardinal wind are when inconsistent, anemometer tower can not accurately reflect the wind regime of wind energy turbine set region, when actual wind direction is contrary with cardinal wind, anemometer tower also will be subject to the impact of wind energy turbine set wake flow.
2) be not suitable for large-scale wind electricity base: the wind energy turbine set in wind-powered electricity generation base distributes in flakes, the position that is applicable to building anemometer tower according to classic method is taken by other wind energy turbine set, or is subject to other wind energy turbine set wake effect serious.
In realizing process of the present invention, inventor finds at least to exist in prior art the defects such as antijamming capability is weak, the scope of application is little and operation easier is large.
Summary of the invention
The object of the invention is to, for the problems referred to above, propose a kind of wind measurement network Optimizing Site Selection and layout method, to realize the advantage that antijamming capability is strong, the scope of application is large and operation easier is little.
For achieving the above object, the technical solution used in the present invention is: a kind of wind measurement network Optimizing Site Selection and layout method, mainly comprise:
A, the distribution situation of analyzing anemometer tower in current wind measurement network and coverage;
B, according to analysis result, in the unlapped region of current wind measurement network, increase monitoring point;
C, according to the position of the corresponding wind energy turbine set of current wind measurement network, the monitoring point of above-mentioned increase is finely tuned;
D, adopt current wind measurement network verification to carry out verification to this fine setting result, when this fine setting result is while meeting parameter preset, current wind measurement network optimization completes; When this fine setting result does not meet parameter preset, return to step b, continue current network to be optimized processing; Described parameter preset, comprise current wind measurement network overlay area, cover the distance between wind direction and anemometer tower.
Further, in described step a, in described current wind measurement network, the distribution situation of anemometer tower specifically comprises that the distance of anemometer tower and wind energy turbine set is about 1km-8km.
Further, in described step a, in described current wind measurement network, the distribution situation of anemometer tower specifically comprises that the distance of anemometer tower and wind energy turbine set is about 1km-5km.
Further, in step b, described in the unlapped region of current wind measurement network, increase the operation of monitoring point, specifically comprise:
Along prevailing wind direction, increase monitoring point: the cardinal wind of Jiuquan region is east by north wind, west by south; And, in conjunction with the application of wind measurement network upstream and downstream effect, in the east by north of monitored area, west by south direction increases or infill monitoring point.
Further, in step b, described in the unlapped region of current wind measurement network, increase the operation of monitoring point, specifically comprise:
The north of dry Hekou Area to, east to south to, and south, area, Yumen, increases or infill monitoring point.
Further, in described steps d, in described parameter preset, described overlay area, specifically comprises that current wind measurement network can cover the four corner of monitored area.
Further, in described steps d, in described parameter preset, described covering wind direction, specifically comprises that inner each anemometer tower of current wind measurement network is not subject to the wind energy turbine set wake effect under each wind direction condition in monitored area all directions.
Further, in described steps d, in described parameter preset, the distance between described anemometer tower specifically comprises 10-25 km.
Further, in described steps d, in described parameter preset, the distance between described anemometer tower specifically comprises 10-20 km.
Further, in described steps d, in described parameter preset, the distance between described anemometer tower specifically comprises the interval between the anemometer tower that closes on wind energy turbine set, is less than away from the interval between the anemometer tower of wind energy turbine set.
Wind measurement network Optimizing Site Selection and the layout method of various embodiments of the present invention, owing to mainly comprising: distribution situation and the coverage of analyzing anemometer tower in current wind measurement network; According to analysis result, in the unlapped region of current wind measurement network, increase monitoring point; According to the position with the corresponding wind energy turbine set of current wind measurement network, the monitoring point of above-mentioned increase is finely tuned; Adopt current wind measurement network verification to carry out verification to this fine setting result, when this fine setting result meets parameter preset, current wind measurement network optimization completes; When this fine setting result does not meet parameter preset, return and continue current network to be optimized processing; Parameter preset, comprise current wind measurement network overlay area, cover the distance between wind direction and anemometer tower; Reply that can be to large-scale wind electricity base special circumstances, optimizes the level of resources utilization, improves wind energy level monitoring; Thereby can overcome the defect that in prior art, antijamming capability is weak, the scope of application is little and operation easier is large, to realize the advantage that antijamming capability is strong, the scope of application is large and operation easier is little.
Other features and advantages of the present invention will be set forth in the following description, and, partly from instructions, become apparent, or understand by implementing the present invention.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for instructions, for explaining the present invention, is not construed as limiting the invention together with embodiments of the present invention.In the accompanying drawings:
Fig. 1 is the Jiuquan area wind measurement network programme figure that optimizes distribution;
Fig. 2 is wind measurement network programme and original anemometer tower graph of a relation;
Fig. 3 is wind measurement network amendment scheme and original anemometer tower graph of a relation in wind measurement network Optimizing Site Selection of the present invention and layout method;
Fig. 4 is the wind measurement network final plan figure that optimizes distribution in Jiuquan area in wind measurement network Optimizing Site Selection of the present invention and layout method;
Fig. 5 is wind measurement network final plan coverage schematic diagram in wind measurement network Optimizing Site Selection of the present invention and layout method;
Fig. 6 is iterative process figure in wind measurement network Optimizing Site Selection of the present invention and layout method.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
Wind measurement network Optimizing Site Selection method mainly contains following some advantage:
1) improve anemometer tower utilization factor: the wind energy turbine set close together in wind-powered electricity generation base, if reasonable plant-site selection, two or more wind energy turbine set can share an anemometer tower.
2) improve region wind energy monitoring capability: when anemometer tower forms after network, the method efficiencies such as the upstream and downstream effect of employing anemometer tower, the input of many anemometer towers, difference calculating improve scope and the accuracy that region wind energy resources calculates.
3) improve wind direction adaptation: for wind measurement network, be all provided with the anemometer tower that is not subject to wake effect on each wind direction, the wind direction adaptation of wind measurement network is far above independent anemometer tower.
Therefore, the construction thinking of wind measurement network is not only the reply to large-scale wind electricity base special circumstances, the innovation to wind energy resources monitoring method that be conceived to especially to optimize the level of resources utilization, improves wind energy level monitoring.
Based on anemometer tower, affect the appropriate distance research of key element research, anemometer tower and wind energy turbine set (group), Large Scale Wind Farm Integration is on the Research foundations such as Effects On Regional Climate research, anemometer tower correlativity and coverage, according to the embodiment of the present invention, as shown in Fig. 1-Fig. 6, a kind of wind measurement network Optimizing Site Selection and layout method are provided.
Wind measurement network Optimizing Site Selection and the layout method of the present embodiment, mainly comprise:
A, the distribution situation of analyzing anemometer tower in current wind measurement network and coverage;
In step a, in current wind measurement network, the distribution situation of anemometer tower specifically comprises that the distance of anemometer tower and wind energy turbine set is about 1km-8km; Preferably, in current wind measurement network, the distribution situation of anemometer tower specifically comprises that the distance of anemometer tower and wind energy turbine set is about 1km-5km.
B, according to analysis result, in the unlapped region of current wind measurement network, increase monitoring point;
In step b, in the unlapped region of current wind measurement network, increase the operation of monitoring point, specifically comprise: along prevailing wind direction, increase monitoring point: the cardinal wind of Jiuquan region is east by north wind, west by south; And, in conjunction with the application of wind measurement network upstream and downstream effect, in the east by north of monitored area, west by south direction increases or infill monitoring point; And/or,
In step b, in the unlapped region of current wind measurement network, increase the operation of monitoring point, specifically comprise: the north of dry Hekou Area to, east to south to, and south, area, Yumen, increases or infill monitoring point;
C, according to the position of the corresponding wind energy turbine set of current wind measurement network, the monitoring point of above-mentioned increase is finely tuned;
Here, because the planned position of part monitoring point cannot meet actual construction requirements, as whole in planned position accident of terrain, periphery has barrier, closes on the problems such as road., need to make an on-the-spot survey on the spot for each planning point for this reason, to not meeting the position, monitoring point of construction requirements, carry out part adjustment, i.e. fine setting.
D, adopt current wind measurement network verification to carry out verification to this fine setting result, when this fine setting result is while meeting parameter preset, current wind measurement network optimization completes; When this fine setting result does not meet parameter preset, return to step b, continue current network to be optimized processing; Parameter preset, comprise current wind measurement network overlay area, cover the distance between wind direction and anemometer tower;
In steps d, in parameter preset, overlay area, specifically comprises that current wind measurement network can cover the four corner of monitored area; And/or,
In steps d, in parameter preset, cover wind direction, specifically comprise that inner each anemometer tower of current wind measurement network is not subject to the wind energy turbine set wake effect under each wind direction condition in monitored area all directions; And/or,
In steps d, in parameter preset, the distance between anemometer tower specifically comprises 10-25 km; Preferably, the distance between anemometer tower specifically comprises 10-20 km; And/or,
In steps d, in parameter preset, the distance between anemometer tower specifically comprises the interval between the anemometer tower that closes on wind energy turbine set, is less than away from the interval between the anemometer tower of wind energy turbine set.
Wind measurement network Optimizing Site Selection and the layout method of above-described embodiment, mainly comprise following principle:
(1) region-wide monitoring: wind measurement network can cover the four corner of monitored area;
(2) full blast is to monitoring: for avoiding wind energy turbine set wake effect, in monitored area all directions, anemometer tower is all set, to guarantee there is the anemometer tower that is not subject to wind energy turbine set wake effect under each wind direction condition;
(3) the about 10-20km of anemometer tower spacing distance: the achievement in research according to technical solution of the present invention for wind energy turbine set anemometer tower correlativity and coverage, effective covering radius of Jiuquan region anemometer tower is about 10km, best results in 5km.Therefore, technical solution of the present invention adopts the about 10-20km in anemometer tower interval, closes on the anemometer tower of wind energy turbine set and should suitably encrypt, and away from the suitable sparse principle of anemometer tower of wind energy turbine set, carries out anemometer tower addressing.In addition, because wind measurement network can be carried out wind energy calculating based on a plurality of anemometer tower data, thereby the actual monitoring scope of each anemometer tower is greater than conventional anemometer tower, because of but not the anemometer tower spacing of emphasis monitored area can relax to 25km;
(4) anemometer tower and wind energy turbine set are apart from 1km-5km: according to wind energy turbine set (group) wake effect result of study, the distance of anemometer tower and wind energy turbine set is generally no more than 1km; According to the CFD Simulation results of anemometer tower coverage, the distance of anemometer tower and wind energy turbine set should be less than 8km, and take 5km below as best.Thereby technical solution of the present invention addressing principle is that the distance of anemometer tower and wind energy turbine set is about 1km-5km, the position that indivedual conditions do not possess, can suitably relax to 8km;
(5) anemometer tower is in the layout of monitored area periphery: anemometer tower should be avoided the impact of wind energy turbine set wake flow as far as possible, is arranged in area peripheral edge.If but all anemometer tower is all arranged in periphery, due to Jiuquan region wind farm group scale excessive (30-50km), intra-zone can form monitoring blind area, many places, cannot meet the requirement of region-wide monitoring.For this reason, inner in monitored area, can break through the restriction of anemometer tower and wind energy turbine set distance, suitably increase monitoring point;
(6) along prevailing wind direction, increase monitoring point: the cardinal wind of Jiuquan region is east by north wind, west by south, for improving the utilization factor of anemometer tower, in conjunction with the application of wind measurement network upstream and downstream effect, in the east by north of monitored area, west by south direction can suitably increase or infill monitoring point;
(7) sensitizing range increase monitoring point: results of numerical simulation shows, Large Scale Wind Farm Integration build after by range of influence weather, wherein do north, Hekou Area, east, south, south, area, Yumen is influenced larger sensitizing range, can suitably increase or infill monitoring point in these regions.
Based on above principle, technical scheme of the present invention has formed the programme that wind measurement network is optimized distribution, referring to Fig. 1.The intra-zone that in Fig. 1, three solid line institute frames go out is wind energy Real-Time Monitoring region, and each darkened boxes represents Construction of Wind Power region, and * is anemometer tower addressing position.The scheme that Fig. 1 shows comprises 36 of anemometer towers altogether, wherein has 3 anemometer towers to be positioned at inside, monitored area (2, Beijing University's bridge region, 1, Qiao Wan region), and all the other anemometer towers are positioned at monitored area periphery.In 3 regions, anemometer tower is used for solving monitoring blind zone problem, and the minor increment of 3 anemometer towers and periphery wind field is 1.4km, meets the demands.
Wind measurement network Optimizing Site Selection and the layout method of above-described embodiment, on wind measurement network is optimized distribution the basis of programme, technical solution of the present invention incorporation engineering actual conditions have been carried out microcosmic addressing and correction, form the final plan that wind measurement network is optimized distribution, microcosmic addressing and correction work mainly comprise following steps:
(1) analyze distribution situation and the coverage of existing anemometer tower
Due to the built a large amount of anemometer towers in area, Jiuquan, original anemometer tower majority is functional, and some survey wind height reach 100m.These anemometer towers can meet the requirement of wind energy resources monitoring through transformation.If wind measurement network can be utilized original anemometer tower, will save a large sum of construction cost, and effectively increase measuring point quantity, thus economy and the monitoring effect of raising wind measurement network.For this reason, in line with nearby principle, reservation high-quality anemometer tower principle, technical solution of the present invention is adjusted programme.Before adjustment, wind measurement network programme and original anemometer tower position relationship are referring to Fig. 2; After adjustment, after wind measurement network correction, scheme and original anemometer tower position relationship are referring to Fig. 3, and in Fig. 3, arrow is original anemometer tower, the anemometer tower that * is wind measurement network, and wherein the * with circles mark needs newly-built anemometer tower.
(2) for unlapped region, increase monitoring point
Utilizing under the prerequisite of original anemometer tower, can suitably increase monitoring point in region.As can be increased a measuring point in dry river port area, although the nearest wind energy turbine set 0.75km in this monitoring point does not meet the requirement of >1km, it can effectively solve monitoring blind zone problem, is to original wind measurement network economy, useful supplementing.
(3) according to wind energy turbine set position, monitoring point is finely tuned
The planned position of part monitoring point cannot meet actual construction requirements, and as whole in planned position accident of terrain, periphery has barrier, closes on the problems such as road.For this reason, technical solution of the present invention has carried out making an on-the-spot survey on the spot for each planning point, to not meeting the position, monitoring point of construction requirements, has carried out local adjustment, has formed the amendment scheme of wind measurement network.
(4) wind measurement network coverage check
For revised addressing scheme, technical solution of the present invention adopts the wind measurement network principle of optimizing distribution in early stage to carry out verification to it again, checks it whether to meet all region covering, full blast to requirements such as covering, spacing.Through repeatedly revising and verification, technical solution of the present invention has formed the final plan that wind measurement network is optimized distribution, and referring to Fig. 4, the anemometer tower that in figure, * is original transformation, is newly-built anemometer tower with the * of circles mark.
If by checking finishing iteration process, if do not pass through, return to second step.
In the above-described embodiments, final plan comprises 33 of anemometer towers altogether, compares with programme, and area, bridge gulf is reduced 2, and area, Yumen is reduced 1, and Beijing University's bridge area is reduced 1, and dry Hekou Area increases by 1, and other parts anemometer tower has carried out position migration.Final plan meets the addressing principle in early stage, can effectively cover the four corner of monitored area, and wind measurement network coverage is referring to Fig. 5.
Finally it should be noted that: the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. wind measurement network Optimizing Site Selection and a layout method, is characterized in that, mainly comprises:
A, the distribution situation of analyzing anemometer tower in current wind measurement network and coverage;
B, according to analysis result, in the unlapped region of current wind measurement network, increase monitoring point;
C, according to the position of the corresponding wind energy turbine set of current wind measurement network, the monitoring point of above-mentioned increase is finely tuned;
D, adopt current wind measurement network verification to carry out verification to this fine setting result, when this fine setting result is while meeting parameter preset, current wind measurement network optimization completes; When this fine setting result does not meet parameter preset, return to step b, continue current network to be optimized processing; Described parameter preset, comprise current wind measurement network overlay area, cover the distance between wind direction and anemometer tower.
2. wind measurement network Optimizing Site Selection according to claim 1 and layout method, is characterized in that, in described step a, in described current wind measurement network, the distribution situation of anemometer tower specifically comprises that the distance of anemometer tower and wind energy turbine set is about 1km-8km.
3. wind measurement network Optimizing Site Selection according to claim 2 and layout method, is characterized in that, in described step a, in described current wind measurement network, the distribution situation of anemometer tower specifically comprises that the distance of anemometer tower and wind energy turbine set is about 1km-5km.
4. according to wind measurement network Optimizing Site Selection and layout method described in any one in claim 1-3, it is characterized in that, in step b, described in the unlapped region of current wind measurement network, increase the operation of monitoring point, specifically comprise:
Along prevailing wind direction, increase monitoring point: the cardinal wind of Jiuquan region is east by north wind, west by south; And, in conjunction with the application of wind measurement network upstream and downstream effect, in the east by north of monitored area, west by south direction increases or infill monitoring point.
5. according to wind measurement network Optimizing Site Selection and layout method described in any one in claim 1-3, it is characterized in that, in step b, described in the unlapped region of current wind measurement network, increase the operation of monitoring point, specifically comprise:
The north of dry Hekou Area to, east to south to, and south, area, Yumen, increases or infill monitoring point.
6. according to wind measurement network Optimizing Site Selection and layout method described in any one in claim 1-5, it is characterized in that, in described steps d, in described parameter preset, described overlay area, specifically comprises that current wind measurement network can cover the four corner of monitored area.
7. according to wind measurement network Optimizing Site Selection and layout method described in any one in claim 1-5, it is characterized in that, in described steps d, in described parameter preset, described covering wind direction, specifically comprises that inner each anemometer tower of current wind measurement network is not subject to the wind energy turbine set wake effect under each wind direction condition in monitored area all directions.
8. according to wind measurement network Optimizing Site Selection and layout method described in any one in claim 1-5, it is characterized in that, in described steps d, in described parameter preset, the distance between described anemometer tower specifically comprises 10-25 km.
9. wind measurement network Optimizing Site Selection according to claim 8 and layout method, is characterized in that, in described steps d, in described parameter preset, the distance between described anemometer tower specifically comprises 10-20 km.
10. according to wind measurement network Optimizing Site Selection and layout method described in above arbitrary claim, it is characterized in that, in described steps d, in described parameter preset, distance between described anemometer tower specifically comprises the interval between the anemometer tower that closes on wind energy turbine set, is less than away from the interval between the anemometer tower of wind energy turbine set.
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