用机器学习和公开可访问的多模式数据对配电网进行地理空间映射
Zhecheng Wang1,2, Arun Majumdar3,4, Ram Rajagopal5,6
1Department of Civil & Environmental Engineering, Stanford University, Stanford, CA, 94305, USA.
Nature communications
|August 17, 2023
概括
本研究介绍了一种机器学习框架,利用公共数据绘制电力配电网的地图. 该工具准确地识别了空中和地下电网,有助于可再生能源的整合和野火风险评估.
科学领域:
- 电气工程 电气工程
- 计算机科学 计算机科学
- 地理空间分析是什么
背景情况:
- 准确的配电网信息对于电力系统应用,如可再生能源整合和野火风险评估至关重要.
- 现有的方法缺乏通用性和可扩展性,无法获得详细的网格数据.
- 需要一个强大的框架来绘制上空和地下电网的地图.
研究的目的:
- 开发一个机器学习框架,利用多模式,公开可用的数据来绘制配电网.
- 评估框架在不同地理区域的准确性,回忆力和通用性.
- 评估框架在估计电网暴露于野火中的实用性.
主要方法:
- 利用机器学习方法整合街景图像,道路网络和建筑地图.
- 训练并将框架与加利福尼亚州公用事业所有的配电网数据进行基准测试.
- 通过将其应用于撒哈拉以南非洲的数据而没有微调,测试了框架的通用性.
主要成果:
- 在分布网的地理空间绘图中实现了超过80%的精度和回忆.
- 证明了高度的通用性,在不需要再培训的情况下在撒哈拉以南非洲保持表现.
- 在评估野火风险评估中估计地下电力线的比例时获得了0.63的R2.
结论:
- 开发的框架提供了一个可扩展和通用化的解决方案,用于利用可访问数据绘制分布网.
- 该工具支持关键电力系统应用,包括可再生能源整合和野火风险减轻.
- 这种开源框架有助于在全球范围内构建和维护可靠和清洁的能源系统.
相关概念视频
Selected Data About Geographic Locations
49
Geographic Information Systems (GIS) rely on two core types of data: spatial data and attribute data.Spatial DataSpatial data defines the physical location of features within a coordinate system, typically expressed in terms of latitude and longitude. It provides precise positioning for elements like roads, rivers, or buildings.Attribute DataAttribute data complements spatial data by adding descriptive information about these features. For example, a road's spatial data includes its start and...
49
Levels of Use of a GIS
71
Geographic Information Systems (GIS) operate across three levels of application, each representing an increasing degree of complexity: data management, analysis, and prediction. These levels reflect the expanding functionality and versatility of GIS technology in handling spatial data for diverse purposes.Data ManagementAt its foundational level, GIS serves as a tool for data management, enabling the input, storage, retrieval, and organization of spatial data. This level is often employed in...
71
Manipulation and Analysis
43
GIS manipulation and analysis functions are vital for decision-making and planning. These activities range from data retrieval tasks, such as selecting information based on specific criteria, to advanced analytical techniques that address complex spatial problems.One critical GIS analysis method is overlaying, which combines multiple data layers to examine impacts. For example, overlaying a river-dammed lake boundary with road networks can identify affected infrastructure. Another common...
43
GIS Software, Hardware, and Sources of GIS Data
93
A Geographic Information System (GIS) combines specialized software and hardware to effectively manage, analyze, and present spatial and related data. GIS software includes critical functionalities such as a user interface for easy navigation, database management tools for handling spatial and attribute data, and data retrieval features for efficient access. Analytical tools transform raw data into insights, while display functions produce maps and reports in various formats for effective...
93
Introduction to GIS
94
Geographic Information Systems (GIS) are tools for storing, analyzing, and displaying spatial data alongside related attributes. Unlike traditional information systems that address general queries, GIS incorporates spatial components, enabling users to answer "where" and "how far." For example, GIS can process housing data linked to geographic locations like zip codes, allowing insights into population density or housing distribution through thematic maps.GIS integrates technologies such as...
94
Applications of GIS: Disaster Management and Emergency Response
108
Geographic Information System (GIS) technology is essential for risk identification, action prioritization, and resource optimization in critical situations like flooding and earthquakes. By integrating spatial and demographic data, GIS provides a comprehensive framework for emergency response.GIS integrates data layers, like rainfall intensity, topography, elevation profiles, and river levels, to model high-risk flood zones. These layers assess areas susceptible to flooding based on their...
108


