Solutions-GoLead Intelligent

Background and Challenges

As the focus of wind power development shifts toward deep-sea and far-offshore areas, offshore wind farms face multiple challenges, including high grid-connection accuracy requirements, frequent grid fluctuations, and complex operating environments. The key pain points include:

Complex Grid-Connection Requirements for Turbine Clusters

Deep-sea offshore wind turbines feature high capacity and wide geographical distribution, requiring extremely high precision in frequency, voltage, and phase control for clustered grid connection.
Significant Impact from Grid Fluctuations

The long-distance transmission characteristics of submarine cables are prone to causing voltage sags and transient disturbances, affecting power system stability.
High Demands on Equipment Environmental Adaptability

Devices must operate reliably over long periods in harsh marine environments characterized by high salinity, high humidity, and strong corrosion.

Overview

Building on extensive application experience of synchronization products in the wind power industry, GoLead Intelligent delivers an integrated power system solution combining precise synchronization control, seamless fast transfer, and smart inrush current suppression.

The solution covers critical stages such as wind turbine grid connection, collector line protection, and substation power supply assurance, is fully adapted to the complex operating conditions of deep-sea and far-offshore environments, and complies with GB/T 19964 and relevant IEC standards for renewable energy grid integration.

Key Technologies

High-Precision Grid-Connection Control

Automatic synchronization accuracy of ≤ ±0.5° phase angle deviation, supporting clustered grid connection control of multiple wind turbines with a first-closing success rate exceeding 99.9%.
Millisecond-Level Power Transfer

Through coordination between fast transfer devices and high-speed vacuum circuit breakers, the system achieves an end-to-end switching time of ≤ 20 ms (detection ≤ 5 ms + operation ≤ 15 ms), effectively preventing wind turbine disconnection caused by voltage sags;
High-Efficiency Inrush Current Suppression Strategy

Microprocessor-based inrush current suppressors apply the residual flux–bias flux mutual cancellation principle to reduce switching current surges during energization of transformers, VFDs, reactors, and other equipment, protecting the insulation integrity of primary equipment.
Environment-Adaptive Design

The equipment is designed to meet offshore operating requirements, including salt spray resistance, corrosion resistance, moisture protection, and lightning protection, while supporting remote intelligent monitoring and abnormal alarm functions.

Application Results and Cases

The solution has been successfully deployed across multiple offshore wind power demonstration projects, delivering proven operational performance. Grid-connection accuracy has remained consistently above 99.95%, wind turbine disconnection rates have been reduced by over 80%, and the annual failure frequency of offshore equipment has decreased by more than 30%. Going forward, GoLead Intelligent will continue to expand its technological applications in the offshore renewable energy sector, supporting the safe, efficient, and sustainable development of green energy.

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