Offshore Wind Power Foundation ICCP System
System Overview
Offshore wind farm impressed-current cathodic protection systems are categorized into impressed-current cathodic protection systems for monopile foundations and jacket foundations.
The impressed-current cathodic protection system for the jacket foundation employs a tensioned installation method:
The auxiliary anodes and reference electrodes of the cathodic protection system are integrated into a composite cable equipped with load-bearing steel wire ropes, and the composite cable–electrode system is installed as an integrated unit on the jacket foundation using a tensioning device, ensuring structural safety and reliability while withstanding storm surge events that occur once in a century.
The impressed-current cathodic protection system for single-pile foundations is installed in a fixed configuration:
The auxiliary anodes and reference electrodes of the cathodic protection system are installed on offshore wind turbine foundations or cage structures via flanged bases.
The power supply equipment is uniformly designed with a multi-channel cathodic protection power controller, in which each power module is uniquely paired with a single auxiliary anode to enable distributed, independent control. This allows for distributed regulation of the auxiliary anode output current and is particularly well suited for foundation structures with complex configurations.
Basic Principle
▎Corrosion Characteristics of the Marine Environment
♦Cathodic protection is a type of electrochemical protection that works by applying an external current to the surface of a corroding metallic structure, thereby making the protected structure the cathode. This suppresses the electron transfer associated with metal corrosion, effectively preventing or mitigating corrosion.
♦ Cathodic protection is classified into two methods: impressed-current cathodic protection and sacrificial-anode cathodic protection.
CorrosionIt is a chemical or electrochemical reaction between the metal and its surrounding environment.
and a resulting destructive erosion.
The marine environment is highly corrosive.Leading to severe corrosion of offshore structures,
It affects the durability and safety of the overall structure.
Product Features
▎The offshore wind power foundation ICCP system boasts the following significant technical advantages:
♦ Each power module is independent, mutually complementary and interchangeable, and can be expanded according to design requirements;
♦ Built-in closed-loop control algorithm for real-time monitoring and output control;
♦ Intelligent independent output regulation for precise control;
♦ Adopts a standardized drawer-style design and a push-pull installation/removal mechanism;
♦ Facilitates online replacement and maintenance, enhancing on-site repair efficiency.
♦ Numerical simulation-based optimization design and validation;
♦ Distributed multi-path control power supply unit;
♦ The cathodic protection data management platform enables monitoring and prediction;
♦ Full-lifecycle operations and maintenance management and technical support.
▎New Project
> Disc-type auxiliary anode products and composite dual-reference electrodes
> Classification Society Type Approval
> Hydrodynamic analysis, structural strength analysis, and fatigue strength analysis
> Watertightness and insulation testing verification
> Adaptability and reliability in adverse sea conditions
▎In-service Projects
> Tensioned auxiliary anode products and composite dual-reference electrodes
> Classification Society Type Approval
> Hydrodynamic analysis, structural strength analysis, and fatigue strength analysis
> Watertightness and insulation testing verification
> Adaptability and reliability in adverse sea conditions
> Composite tensioning installation structure for easy installation
> Removable and replaceable in later stages, with minimal underwater operations.
Offshore Wind Turbine Foundation Cathodic Protection Solution <1> Numerical Simulation
▎Numerical Simulation Technology for Cathodic Protection of Offshore Wind Turbine Foundation Piles
◎ Customized design tailored to different pile foundation structural configurations ◎ Boundary element numerical simulation technology for cathodic protection
◎ Calculation of the potential distribution for impressed-current cathodic protection ◎ Calculation of the potential distribution for sacrificial-anode cathodic protection
◎ Optimized Design of Cathodic Protection for Complex Stress-Loaded Structures ◎ 3D Visualization of Structural Cathodic Protection Performance
Offshore Wind Turbine Foundation Cathodic Protection Solutions <2.1> Tension-Loaded ICCP
▎Advantages of Tension-Loaded Impressed Current Cathodic Protection Systems for Offshore Wind Farms
◎ Numerical simulation-based optimization design and validation ◎ Distributed multi-channel control power supply unit ◎ Composite tensioning installation structure, easy to install
◎ Post-installation detachable and replaceable design with minimal underwater operations ◎ Cathodic protection data management platform for monitoring and prediction ◎ Full-lifecycle operation and maintenance management and technical support
Offshore Wind Turbine Foundation Cathodic Protection Solutions <2.2> Fixed ICCP
▎Fixed ICCP System Electrodes
Product Specifications
▎Performance Parameters and Quantity of Auxiliary Anodes
▎Reference Electrode Performance Parameters and Quantity
▎Multiplex Controller Parameters
▎Multi-channel Potentiostat Parameters
Application Performance
▎ICCP System for the Jacket Structure of the Yancheng Guoneng Dafeng H5-2 Offshore Boosting Station
◎ Application Case: ICCP System for the Jacket Structure of the Guoneng Dafeng H5-2 Step-Up Substation
◎ Commissioning Date: August 2020 (already in operation)
◎ System Features: Disc-shaped MMO auxiliary anode; integrated design of anode and reference electrode
Contact Information
Address: Company Headquarters:Building A, Overseas Students’ Entrepreneurship Park, No. 1 Huoju Road, High-tech Industrial Park, Dalian
Experiment–Manufacturing Base: Tangli Industrial Park, Hongqi Subdistrict, Ganjingzi District, Dalian City
Telephone: Corporate Headquarters: 0411-84660668
Experiment-Manufacturing Base: 0411-82646110
Email: info@kingmile.com
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