CN112634081B - Microscopic site selection method for plain wind power plant of system - Google Patents
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Abstract
A systematic plain wind farm microcosmic site selection method comprises the following steps: 1) Determining a wind field range; 2) Acquiring state data in the range of the wind field; 3) Combining a wind energy resource distribution diagram, and primarily arranging the positions of fans of the wind field by considering an optimal principle of generating capacity; 4) The method has the advantages that the requirements of safety distance and avoidance distance are met, a limiting area is avoided, and meanwhile, in the area where the fans can be arranged, the primary distribution scheme with the optimal unit electric degree investment is obtained through comprehensive iterative calculation by combining calculation results of the wind resource module, the electric module, the civil engineering module, the total graph module, the current collecting circuit module and the technology warp module through optimal arrangement. The invention provides a comprehensive and systematic microscopic site selection scheme for the first time, has a large reference value for full utilization of resources of the plain wind power plant, reasonable arrangement of machine positions and optimal selection of the technical scheme, and provides precious guiding experience for development and utilization of plain wind power.
Description
Technical Field
The invention relates to a microscopic site selection method of a plain wind power plant of a system.
Background
At present, along with the development progress of wind farms, mountain wind resource development gradually enters tail sounds, and along with the progress of fan technology in the years, the hot tide of wind farm development and construction is changed from mountain areas to plain. The mountain wind power plant microscopic site selection has a set of mature technical method, and the plain wind power plant has a quite different microscopic site selection technology from the mountain wind power plant and is in a fumbling and gradually improved stage due to the fact that the plain wind power plant starts later, more limiting factors and more complex technical conditions.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention aims to provide a microscopic site selection method for a plain wind power plant.
The invention aims at realizing the following technical scheme:
a microscopic site selection method of a plain wind power plant of a system is characterized by comprising the following steps:
1) Determining a wind field range;
2) Acquiring state data in a wind field range, wherein the state data comprises an avoidance area, an avoidance distance, noise and a shadow safety distance;
3) Combining a wind energy resource distribution diagram, and primarily arranging the positions of fans of the wind field by considering an optimal principle of generating capacity;
4) The method has the advantages that the requirements of safety distance and avoidance distance are met, a limiting area is avoided, and meanwhile, in the area where the fans can be arranged, the primary distribution scheme with the optimal unit electric degree investment is obtained through comprehensive iterative calculation by combining calculation results of the wind resource module, the electric module, the civil engineering module, the total graph module, the current collecting circuit module and the technology warp module through optimal arrangement.
The method also comprises the following steps:
5) Checking whether the influence of noise and light shadow on the residential area and the farm meets the requirements of the related environmental standards or not by a fan manufacturer according to the preliminary machine distribution scheme, and if not, repeating the steps 3) and 4) until the requirements are met, thereby obtaining a first intermediate machine distribution scheme;
6) According to the preliminarily selected machine position, performing on-site survey, removing all influencing factors again, and repeating the steps 3), 4) and 5) until all the requirements are met if adjustment exists, so as to obtain a second intermediate machine distribution scheme;
7) Implementing the consistency of the land property of each machine position to the local homeland department by using the fan coordinate of the preliminary machine arrangement scheme II, and repeating the steps 3), 4), 5) and 6) until all machine positions completely meet the requirements if the machine position does not completely meet the national domestic policy, so as to obtain a middle machine arrangement scheme III;
8) And (3) checking the final machine distribution scheme III again by field investigation, and repeating the work of 3), 4), 5), 6) and 7) until all the influencing factors are eliminated to obtain the final machine distribution scheme.
The data that should be provided when the wind field is in the true range include: wind measurement data, actual measurement topographic map, land property map, forestry distribution map, mining area distribution map, planning map, ecological red line protection area, military avoidance area range map, airport avoidance area range map, cultural relic protection range map and adjacent wind field machine position map which meet the requirements of microcosmic site selection and wind field wind flow numerical model calculation; the wind measuring data are obtained by observation of a wind measuring tower; the wind farm wind flow numerical model was obtained by WAsP, windFarm or Meteodyn WT software.
In step 2), the avoidance region refers to: avoiding basic farmland, mining areas, ecological red line protection areas, military protection areas, airport protection ranges, cultural relic protection ranges and adjacent wind field ranges;
the avoiding distance is as follows: in-situ investigation to find residential areas, graves, farms, 110kV and above high-voltage lines, provincial and above roads, buried pipelines, communication signal towers and other limiting factors of the wind field area; the avoidance distance of the high-voltage line, the road, the buried pipeline and the signal tower is determined according to the rule specification and the model parameters;
noise and light shadow safety distance means: according to the environmental standard, defining the noise type areas of the residential areas and the farms, and determining the limit value requirements of the daytime and the nighttime on the noise; and then according to the source intensity and noise limit requirements of the selected model, measuring and calculating the safety distance requirement of the fan from the residential area and the farm.
In step 3), 10-20% of the candidate machine positions are added.
The primary fan arrangement position takes priority of wind resource conditions, a wind energy resource distribution map is obtained by numerical simulation software, the wind resource conditions of the position with a brighter map are good, and the wind resource conditions of the position with a darker map are bad; the machine position arrangement can be realized by manually selecting the position or by computing software, namely, the fans are manually arranged at the positions with good resource conditions according to the wind energy resource distribution conditions, the software arrangement is to set boundary conditions, distance requirements among the fans, inflow angles and upper limit values of turbulence intensity, and the optimal position scheme is obtained by software iterative computation.
In the step 4), the preliminary machine distribution scheme with the optimal investment in unit electric degree refers to a scheme with the minimum investment in unit electric degree; the total yield of the wind power plant is determined by the generated energy, and the generated energy is obtained by calculation of a wind resource module; the investment of the wind power plant engineering consists of fan equipment, electricity, civil engineering, a current collecting circuit, transportation and maintenance roads, a pricing base is set for each part by combining actual price and local conditions, then different fan arrangement schemes correspond to a generated energy and a total expenditure, the total expenditure is divided by the generated energy to obtain unit electricity degree investment, the unit electricity degree investment is the minimum, and the optimal scheme is obtained by setting iteration time or iteration times.
The beneficial effects of the invention are as follows: aiming at complex ground conditions and various limiting factors of the plain wind power plant, the invention provides a comprehensive and systematic microscopic site selection scheme for the first time, has a larger reference value for full utilization of resources of the plain wind power plant, reasonable arrangement of machine positions and optimal selection of technical schemes, and provides precious guiding experience for development and utilization of plain wind power.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
Thus, the following detailed description of the embodiments of the invention, which are presented in the drawings, are not intended to limit the scope of the invention as claimed, but are merely representative of selected embodiments of the invention, based on which all other embodiments that a person of ordinary skill in the art would achieve without inventive effort are within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
As shown in fig. 1, a microscopic site selection method for a plain wind farm comprises the following steps:
1) Determining a wind field range: in determining the range of the wind farm, the specific range of the wind farm is generally defined according to the local development plan and the region specified in the development agreement of the owner and the local government.
In this step, the data to be provided when the wind field range is established include: wind measurement data, actual measurement topographic map, land property map, forestry distribution map, mining area distribution map, planning map, ecological red line protection area, military avoidance area range map, airport avoidance area range map, cultural relic protection range map, adjacent wind field machine position map and the like which meet the requirements of microcosmic site selection and wind field wind flow numerical model calculation.
The wind measuring data are obtained by observing a wind measuring tower established by an owner, and the wind measuring data are obtained through the wind measuring tower in the prior art; the measured topographic map is measured by a delegated survey unit of the owner and is provided by the owner; the wind power plant wind flow numerical model is built and obtained by the existing software, and the currently commonly used software comprises WAsP, windFarm, meteodyn WT and the like, wherein the Meteodyn WT is the most authoritative; the land property map is derived from a local homeland department, the forestry distribution map is derived from a local forestry department, the mining area distribution map is derived from a local geological mineral main department, the planning map is derived from a local planning department, the ecological red line protection area is derived from a local environmental protection department, the military protection area is derived from a local military management unit, the airport avoidance area is derived from a specific airport management unit, and the cultural relic protection range map is derived from a local cultural relic office.
2) And acquiring state data in the wind field range, wherein the state data comprises an avoidance area, an avoidance distance, noise and a shadow safety distance.
Wherein, dodge the region and refer to: the basic areas (land blocks) where the wind field can be laid out are determined by avoiding basic farmland, mining areas, ecological red line protection areas, military protection areas, airport protection areas, cultural relic protection areas, adjacent wind field areas and the like.
The avoiding distance is as follows: in-situ investigation to find residential areas, graves (ground) in wind field areas, farms, 110kV and above high-voltage lines, provincial and above roads, buried pipelines, communication signal towers and other limiting factors; and determining the avoiding distance to the high-voltage line, the road, the buried pipeline, the signal tower and the like according to related regulation specifications, model parameters and the like.
Noise and light shadow safety distance means: according to the relevant environmental standards, defining noise type areas (most plain wind fields belong to 1 type of environmental noise areas) of sensitive areas such as residential areas, farms and the like, and determining the limit requirements of the daytime and the nighttime on noise; then, according to the source intensity and noise limit requirements of the selected model, measuring and calculating the safety distance requirement (considering superposition influence) of the fan from the residential area and the farm; the safety distance between the fan and the residential area and the safety distance between the fan and the farm are both the prior art, and the data can be obtained in two ways, namely, the data are provided by fan manufacturers and the units responsible for compiling wind power plant engineering environment influence evaluation reports. And calculating the influence distance of the light and shadow according to the relevant environmental standards, and determining the avoidance distance of the fan to the residential area, the farm and the like; combining noise and shadow measuring and calculating results (the noise has larger influence radius under the general condition), taking large values for the noise and the shadow measuring and calculating results, and determining the safety distance requirements of the fan on sensitive areas such as residential areas, farms and the like; the noise safety distance measurement and the shadow safety distance measurement are both in the prior art, and the two data can be obtained in two ways, namely, provided by a fan manufacturer, and provided by a unit responsible for writing a wind power plant engineering environment influence evaluation report.
3) Combining a wind energy resource distribution diagram, considering the optimal principle of generating capacity, primarily arranging the positions of fans of the wind field, and adding 10-20% of alternative positions by considering the influence of more factors of the plain wind field, the influence of post-sign land and the like.
The primary fan arrangement positions generally take priority of wind resource conditions, a wind energy resource distribution map is obtained by numerical simulation software, the wind resource conditions of the positions with brighter maps are good, and the wind resource conditions of the positions with darker maps are bad; the machine position arrangement can be realized by manual selection of positions or calculation software, such as openwind, manual arrangement is that fans are manually arranged at positions with good resource conditions (brighter patterns) according to wind energy resource distribution conditions, and software arrangement is that boundary conditions, requirements on distance between fans (generally 5 times of impeller diameter along a dominant wind direction, 3 times of impeller diameter along a disposal and dominant wind direction), inflow angles, upper limit values of turbulence intensity and the like are set, and an optimal position scheme is obtained through software iterative calculation.
4) The method is characterized in that the method meets the requirements of safety distance and avoidance distance and avoids a limiting area, and meanwhile, in the area where the fans can be arranged, the primary distribution scheme with the optimal unit electric power investment is obtained through comprehensive repeated iterative computation by combining calculation results of a wind resource module, an electric module, a civil engineering module, a total graph module, a current collecting circuit module and a technology warp module through optimal arrangement, wherein the primary distribution scheme with the optimal unit electric power investment refers to a scheme with the minimum unit electric power investment.
The total yield of the wind power plant is determined by the generated energy, and the generated energy is obtained by calculation of a wind resource module; the investment of the wind power plant engineering consists of main parts such as fan equipment, electricity, civil engineering, current collecting circuits, transportation and maintenance roads and the like, a pricing base is set for each part in combination with actual price and local conditions, then different fan arrangement schemes correspond to a generated energy and a total expenditure, the total expenditure is divided by the total generated energy to obtain unit electricity degree investment, the unit electricity degree investment is the minimum, and the optimal scheme is obtained by setting iteration time or iteration times.
5) And (3) rechecking whether the influence of noise (considering superposition influence) and light shadow on the residential area and the farm meets the requirements of the related environmental standards or not by a fan manufacturer according to the preliminary machine distribution scheme, and if not, repeating the steps 3) and 4) work adjustment until the requirements are met, thereby obtaining a first intermediate machine distribution scheme.
6) And (3) according to the preliminarily selected machine position, performing on-site survey, removing all influencing factors again, and repeating the working contents of 3), 4) and 5) if the adjustment exists until all requirements are met, so as to obtain a middle machine distribution scheme II.
7) And (3) implementing the consistency of the land property of each machine position to the local homeland department by using the fan coordinate of the preliminary machine arrangement scheme II, and repeating the work of 3), 4), 5) and 6) until all machine positions completely meet the requirements if the machine position does not completely meet the national domestic policy, so as to obtain the intermediate machine arrangement scheme III.
8) And (3) checking the final machine distribution scheme III again by field investigation, and repeating the work of 3), 4), 5), 6) and 7) until all the influencing factors are eliminated to obtain the final machine distribution scheme.
Other techniques refer to the prior art.
While the invention has been described in terms of preferred embodiments, it will be understood that the invention is not limited thereto, but rather, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the scope of the invention.
The technical features of the above embodiments may be arbitrarily combined, and for brevity, all of the possible combinations of the technical features of the above embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, all of them should be considered as the scope of the description, and when there is a contradiction or failure in the combination of the technical solutions, all of them should be considered as not being present, and are not within the scope of protection claimed by the present invention. Moreover, it will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the spirit of the principles of the present invention.
Claims (2)
1. A microscopic site selection method of a plain wind power plant of a system is characterized by comprising the following steps:
1) Determining a wind field range;
2) Acquiring state data in a wind field range, wherein the state data comprises an avoidance area, an avoidance distance, noise and a shadow safety distance; the data that should be provided when the wind field is in the true range include: wind measurement data, actual measurement topographic map, land property map, forestry distribution map, mining area distribution map, planning map, ecological red line protection area, military avoidance area range map, airport avoidance area range map, cultural relic protection range map and adjacent wind field machine position map which meet the requirements of microcosmic site selection and wind field wind flow numerical model calculation; the wind measuring data are obtained by observation of a wind measuring tower; the wind power plant wind current numerical model is obtained by WAsP, windFarm or Meteodyn WT software;
the avoidance region refers to: avoiding basic farmland, mining areas, ecological red line protection areas, military protection areas, airport protection ranges, cultural relic protection ranges and adjacent wind field ranges;
the avoiding distance is as follows: in-situ investigation to find residential areas, graves, farms, 110kV and above high-voltage lines, provincial and above roads, buried pipelines, communication signal towers and other limiting factors of the wind field area; the avoidance distance of the high-voltage line, the road, the buried pipeline and the signal tower is determined according to the rule specification and the model parameters;
noise and light shadow safety distance means: according to the environmental standard, defining the noise type areas of the residential areas and the farms, and determining the limit value requirements of the daytime and the nighttime on the noise; then, according to the source intensity and noise limit requirements of the selected model, the safety distance requirement of the fan from the residential area and the farm is calculated;
3) Combining a wind energy resource distribution diagram, and primarily arranging the positions of fans of the wind field by considering an optimal principle of generating capacity; the primary fan arrangement position takes priority of wind resource conditions, a wind energy resource distribution map is obtained by numerical simulation software, the wind resource conditions of the position with a brighter map are good, and the wind resource conditions of the position with a darker map are bad; the machine position arrangement can be realized by manually selecting the position or by calculation software, namely, manually arranging the fans at the positions with good resource conditions according to the wind energy resource distribution conditions, wherein the software arrangement is to set boundary conditions, distance requirements among fans, inflow angles and upper limit values of turbulence intensity, and the optimal position scheme is obtained by software iterative calculation;
4) The method has the advantages that the requirements of safety distance, avoidance distance and limitation area are met, meanwhile, in the area where the fans can be arranged, the primary distribution scheme with the optimal unit electric degree investment is obtained through comprehensive iterative computation by combining calculation results of the wind resource module, the electric module, the civil engineering module, the total graph module, the current collecting circuit module and the technology warp module through optimal arrangement; the preliminary machine distribution scheme with the optimal investment of unit electric power is a scheme with the minimum investment of unit electric power; the total yield of the wind power plant is determined by the generated energy, and the generated energy is obtained by calculation of a wind resource module; the investment of the wind power plant engineering consists of fan equipment, electricity, civil engineering, a current collecting circuit, transportation and maintenance roads, a pricing base is set for each part by combining actual price and local conditions, then different fan arrangement schemes correspond to a generated energy and a total expenditure, the total expenditure is divided by the generated energy to obtain unit electricity degree investment, the unit electricity degree investment is the minimum as a target, and an optimal scheme is obtained by setting iteration time or iteration times;
5) Checking whether the influence of noise and light shadow on the residential area and the farm meets the requirements of the related environmental standards or not by a fan manufacturer according to the preliminary machine distribution scheme, and if not, repeating the steps 3) and 4) until the requirements are met, thereby obtaining a first intermediate machine distribution scheme;
6) According to the preliminarily selected machine position, performing on-site survey, removing all influencing factors again, and repeating the steps 3), 4) and 5) until all the requirements are met if adjustment exists, so as to obtain a second intermediate machine distribution scheme;
7) Implementing the consistency of the land property of each machine position to the local homeland department by using the fan coordinate of the preliminary machine arrangement scheme II, and repeating the steps 3), 4), 5) and 6) until all machine positions completely meet the requirements if the machine position does not completely meet the national domestic policy, so as to obtain a middle machine arrangement scheme III;
8) And (3) checking the final machine distribution scheme III again by field investigation, and repeating the work of 3), 4), 5), 6) and 7) until all the influencing factors are eliminated to obtain the final machine distribution scheme.
2. A method for microscopic site selection of a plain wind farm of a system according to claim 1, wherein: in step 3), 10-20% of the candidate machine positions are added.
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| CN116861705A (en) * | 2023-09-04 | 2023-10-10 | 聚合电力工程设计(北京)股份有限公司 | Wind power plant noise and light and shadow influence analysis method based on computer simulation |
| CN117521387A (en) * | 2023-11-17 | 2024-02-06 | 北京瑞科同创能源科技有限公司 | Fan arrangement method and device |
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