Guohua Dongtai Offshore Wind Farm Tower and Booster Station Safety Monitoring Project

1.Project background

Guohua Dongtai Phase IV (H2) 300MW offshore wind farm project is located in Beitiaozini off the coast of Dongtai, and the center of the wind farm is about 42km offshore. The water depth conditions in the wind farm area are complex and lack regularity, with an average water depth of about 6m. The wind farm is trapezoidal in shape, with a length of about 14km from east to west and a width of about 10km from north to south. The wind farm covers an area of 48.1km2 and belongs to the Dongsha sea area.

2.Project introduction

The project is designed to install 75 wind turbines with a single capacity of 4.0MW wind turbines, including 63 4MW wind turbines and 12 4.2MW wind turbines. The wind turbine foundation forms are all single pile foundations with a total installed capacity of 300MW. The wind farm is equipped with a 220kV sea booster station, located in the sea area on the north side of the 24# and 25# wind turbines. The scale is designed according to 300MW, and it is sent out by a 220kV submarine cable; the onshore centralized control center and the north of Dongtai Phase II The district booster station is combined, and the production and living facilities are uniformly arranged in the booster station of Dongtai Phase II North Wind Farm. The length of a single submarine cable from the sea uplift station to the landing point is about 47.8km.

This project uses more than 50 QZ2013 accelerometers, more than 150 QYG01-1 dynamic inclinometers, 75 G01NET series dynamic data collectors, and 1 set of G01NET-FDC wind farm building dynamic response safety monitoring software produced by our company. . Among them, the sea ascending pressure station vibration and tilt monitoring system commissioned this time shared 16 vibration accelerometers, 8 inclinometers and 5 data acquisition instruments(Click to learn more related product introduction).

The commissioning of the vibration and tilt monitoring system of the sea uplift station was successfully completed on May 26. The automatic monitoring of the sea booster station and the land master control center realize simultaneous monitoring. It is expected that by the end of the year, the vibration and tilt monitoring system of 75 single piles and sea-lift pressure stations can be fully automated.

3.Project Significance

Real-time monitoring of the vibration characteristics and dynamic tilt of the steel structure of the sea booster station, online analysis of the vibration peak and main vibration frequency and damping of each part of the booster station, online monitoring of the overall dynamic tilt and sloshing displacement of the structure, in the event of a typhoon or earthquake Then quickly assess the structural damage of the booster station.