风力资源测量：岛屿指南（英文版）_172页-11mb

WIND RESOURCE MEASUREMENT: GUIDELINES FOR ISLANDS

Core Content Overview

This document provides a comprehensive guide for planning and conducting high-quality wind resource measurement campaigns on islands. It is authored by a team of wind resource engineers and meteorologists and is supported by expert reviewers from IRENA, the Asia Development Bank, and other relevant organizations. The manual is designed to assist a wide range of stakeholders, including funders, investors, local government agencies, developers, program managers, and field engineers, in ensuring accurate and reliable data collection for wind energy projects.

Main Objectives of the Manual

• To help stakeholders understand the importance of accurate wind resource measurement for the success of wind energy projects.
• To provide a structured approach to designing, implementing, and maintaining wind measurement campaigns.
• To guide the selection of appropriate measurement systems, locations, and equipment for island environments.
• To support the development of community engagement and capacity building in wind energy projects.
• To ensure that measurement data is reliable, bankable, and suitable for use in financial models and project planning.

Key Points

Why Measure the Wind?

• Accurate wind measurements are essential for estimating energy production, turbine placement, and model selection.
• They reduce perceived project risk and support financial and technical planning.
• Poor measurement can lead to underperformance, excessive downtime, and higher operational costs.
• Data from monitoring systems can support project construction, forecasting, and maintenance.

Why Focus on Islands?

• Islands often have smaller wind plants and use smaller turbines, which may require fewer and shorter measurement systems.
• Islands experience extreme weather conditions, such as powerful ocean storms, rapid corrosion, and heavy icing.
• Technical and financial constraints due to isolation and limited resources can influence measurement design and implementation.
• Wind energy can be more cost-effective on islands due to reliance on imported diesel fuel and the potential for local job creation and currency savings.

Why Follow These Guidelines?

• High-quality data is crucial for accurate energy production estimates, turbine selection, and plant design.
• The guidelines ensure that all technical aspects, such as sensor placement, data collection frequency, and equipment reliability, are properly addressed.
• They help avoid common pitfalls such as poor site selection, inadequate data quality, and insufficient documentation.
• Compliance with these guidelines increases the likelihood of securing financing and support from financial institutions and local communities.

Main Stages of a Wind Resource Measurement Campaign

1. Project Planning and Objectives
2. Site Screening and Identification
3. Measurement Campaign Design
4. Equipment Selection and Installation
5. Operation and Data Collection
6. Program Reporting and Conclusion

Main Components of a Wind Resource Measurement Programme

• Program Manager: Oversees the entire project and ensures alignment with objectives and stakeholders.
• Field Team Lead and Staff: Conduct on-site activities, including installation and maintenance.
• Site Technicians: Handle equipment and data collection at the measurement sites.
• Quality Assurance Coordinator: Ensures data quality and adherence to standards.
• Data Analyst: Processes and interprets the collected data.

Key Parameters for Wind Resource Assessment

• Annual Mean Wind Speed: Indicates the average wind speed at a site.
• Wind Speed Frequency Distribution: Helps in understanding the variability of wind speeds.
• Wind Shear: Influences turbine performance and energy output.
• Direction Frequency Distribution (Wind Rose): Provides insight into wind direction patterns.
• Air Temperature and Air Density: Affects turbine efficiency and power output.
• Turbulence Intensity: Influences the design and reliability of wind turbines.
• Wind Power Density: A measure of the energy available in the wind.
• Turbine Output Estimation: Based on wind data, used to forecast energy production.

Site Selection and Measurement System Design

• Site Selection: Involves desktop review and field surveys to identify suitable locations.
• Measurement System Siting: Must ensure representative conditions, avoid obstructions, and be accessible.
• Number of Systems: Determined by the project domain and terrain complexity.
• System Selection: Includes tall towers (tubular or lattice) and remote sensing systems (sodar, lidar).

Equipment and Installation Considerations

• Tall Towers: Used for measuring wind conditions at various heights.
• Remote Sensing Systems: Offer advantages in inaccessible areas and provide high-resolution data.
• Instrumentation: Includes anemometers, wind vanes, temperature sensors, and data loggers.
• Installation: Requires careful planning, safety measures, and proper documentation.
• Operations and Maintenance: Ensures reliable data collection and system longevity.

Data Collection, Handling, and Validation

• Data Storage: On-site storage is critical, especially in areas with limited communications.
• Data Retrieval and QC: Involves regular checks, data screening, and validation.
• Data Protection and Archiving: Ensures data integrity and long-term accessibility.
• Reporting: Includes monthly, quarterly, and annual reports, as well as summary and energy production reports.

Conclusion

These guidelines are essential for ensuring that wind resource measurement campaigns on islands are conducted with the necessary technical, financial, and environmental considerations. By following them, stakeholders can improve the accuracy of data, reduce project risks, and increase the likelihood of successful wind energy development. The manual also emphasizes the importance of community engagement and capacity building as part of the measurement process.