CN-122021539-A - Distributed photovoltaic power station cable amount calculation method, device, system and storage medium

Abstract

The invention discloses a distributed photovoltaic power station cable amount calculating method, a device, a system and a storage medium, which comprise the steps of obtaining field data of a distributed photovoltaic power station; and calculating the cable quantity of the distributed photovoltaic power station according to the live-action 3D model and the improved path planning based on the volume and pressure drop double constraint. By adopting the technical scheme of the invention, accurate calculation of the cable quantity, compliance control of the bridge volume, compliance control of the cable pressure drop and optimization of engineering cost are realized.

Inventors

• ZANG JUNLIN
• WEI XING
• LIU YONG
• CHEN TIEJUN
• LI BOHUA
• Jiang Sushu
• Gao Aping

Assignees

• 上海尤汶新能源有限公司

Dates

Publication Date

20260512

Application Date

20260206

Claims (8)

1. 1. A distributed photovoltaic power plant cable calculation method, comprising: Acquiring field data of a distributed photovoltaic power station; Building a live-action 3D model according to the field data of the distributed photovoltaic power station; and calculating the cable quantity of the distributed photovoltaic power station based on the improved path planning of the volume and pressure drop double constraint according to the live-action 3D model.
2. 2. The method of claim 1, wherein the distributed photovoltaic power station field data comprises field image data, three-dimensional point cloud data, and engineering constraint data comprising structure bearing point coordinates, obstacle coordinates, bridge laying prohibition areas, and priority laying areas of the component mounting area.
3. 3. The method for calculating the cable amount of the distributed photovoltaic power station according to claim 1, wherein when a plurality of feasible paths are combined with the cable types, comprehensive scores are calculated according to a path length weight of 30%, a bridge average occupancy weight of 30% and a pressure drop redundancy weight of 40%, and the highest score is the optimal scheme, so that the cooperative optimization of the shortest path, volume balance and pressure drop compliance is realized.
4. 4. A distributed photovoltaic power plant cable calculation apparatus, comprising: the first processing module is used for acquiring field data of the distributed photovoltaic power station; the second processing module is used for constructing a live-action 3D model according to the field data of the distributed photovoltaic power station; and the third processing module is used for calculating the cable quantity of the distributed photovoltaic power station based on the improved path planning of the volume and pressure drop double constraint according to the live-action 3D model.
5. 5. The distributed photovoltaic power plant cable calculation apparatus of claim 4, wherein the distributed photovoltaic power plant field data comprises field image data, three-dimensional point cloud data, and engineering constraint data comprising structure bearing point coordinates, obstacle coordinates, bridge lay inhibition areas, and priority lay areas of the component mounting area.
6. 6. The distributed photovoltaic power station cable calculation device of claim 5, wherein the third processing module is configured to calculate a composite score according to a path length weight of 30%, a bridge average occupancy weight of 30%, and a pressure drop redundancy weight of 40% when there are a plurality of feasible paths and cable model combinations, and the highest score is an optimal solution, so as to realize collaborative optimization of shortest path, volume balance, and pressure drop compliance.
7. 7. A distributed photovoltaic power plant cable calculation system comprising a memory and a processor, the memory having stored thereon a computer program for execution by the processor, the computer program when executed by the processor performing the distributed photovoltaic power plant cable calculation method of any of claims 1-3.
8. 8. A storage medium having stored thereon a computer program which, when run, performs the distributed photovoltaic power plant cable calculation method of any of claims 1-3.

Description

Distributed photovoltaic power station cable amount calculation method, device, system and storage medium Technical Field The invention belongs to the technical field of distributed photovoltaic power stations, and particularly relates to a method, a device, a system and a storage medium for calculating cable quantities of a distributed photovoltaic power station. Background In the construction process of the distributed photovoltaic power station, the accurate calculation of the cable quantity is a key link of engineering design, and directly influences engineering cost control, material purchase planning and construction efficiency. The existing distributed photovoltaic cable calculation mainly adopts a manual on-site measurement or CAD drawing virtual estimation-based mode, and has the following remarkable defects: 1. the efficiency of manual field measurement is low, especially for scenes such as roof, complex terrain, and the like, the measurement error is large due to the fact that the scenes are easy to be interfered by the environment, and the error rate is as high as 10% -20%; 2, the CAD drawing virtual estimation ignores physical constraints of field actual barriers (such as a parapet wall of a building, an existing pipeline and an equipment foundation) and bridge laying, and most bridges are virtually preset instead of being added in combination with field reality, so that a design scheme and field construction are disjointed, the deviation of actual cable consumption and design amount is obvious, and material waste or construction reworking is caused; 3. The volume constraint of the cable bridge is not considered (according to the electric power engineering cable design standard GB50217, the internal cable volume of the bridge is required to be less than 40 percent), the cable quantity is calculated only according to the path length, the problem of overload of the bridge volume is easy to occur, the model of the bridge is required to be replaced in a later period, and the engineering cost and the construction period are increased; 4. The path planning only takes the shortest distance as a single target, and the bridge volume occupation balance is not considered, so that partial bridges are excessively congested, partial bridge resources are idle, and the economy and reliability of the whole engineering are reduced; 5. The voltage drop constraint of the cable is not included (the voltage drop of the direct current side is less than 2 percent, the voltage drop of the alternating current side is less than 3 percent), the cable type is selected only according to the path length, the problem that the voltage drop of the cable exceeds standard easily occurs, the power generation efficiency of the photovoltaic power station is affected, the cable type is required to be replaced in a later period, and the engineering cost and the construction period are increased. Although independent technologies such as unmanned aerial vehicle 3D modeling, map navigation path planning and cable pressure drop calculation exist in the prior art, a cable quantity calculation scheme of manually adding a bridge frame based on a live-action model and a path planning algorithm of photovoltaic scene adaptation and fusing a bridge frame volume constraint and a cable pressure drop constraint depth does not exist, and a core pain point of the cable quantity calculation of the distributed photovoltaic power station cannot be solved. Disclosure of Invention In order to solve the problems in the prior art, the invention provides a distributed photovoltaic power station cable amount calculating method, a distributed photovoltaic power station cable amount calculating device, a distributed photovoltaic power station cable amount calculating system and a distributed photovoltaic power station cable amount calculating storage medium. In order to achieve the above object, the present invention provides the following solutions: A distributed photovoltaic power plant cable calculation method, comprising: Acquiring field data of a distributed photovoltaic power station; Building a live-action 3D model according to the field data of the distributed photovoltaic power station; and calculating the cable quantity of the distributed photovoltaic power station based on the improved path planning of the volume and pressure drop double constraint according to the live-action 3D model. Preferably, the distributed photovoltaic power station field data comprises field image data, three-dimensional point cloud data and engineering constraint data, wherein the engineering constraint data comprises structure bearing point coordinates, obstacle coordinates, a bridge laying forbidden area and a preferential laying area of a component mounting area. Preferably, when a plurality of feasible paths are combined with the cable model, comprehensive scores are calculated according to path length weight 30%, bridge average occupancy weight 30% and pressure drop r