Wind-Solar Hybrid Power Supply for Fishing Vessels: Salt Spray Corrosion Resistant System and Ship Electrical Optimization

Wind-Solar Hybrid Power Supply for Fishing Vessels: Salt Spray Corrosion Resistant System and Ship Electrical Optimization

Installing wind and solar power systems on fishing vessels can effectively supplement the vessel's electrical power, reduce reliance on the main engine, save fuel, and reduce emissions. However, the harsh marine environment places extremely high demands on the equipment; therefore, salt spray corrosion resistance becomes the primary consideration in system design, requiring intelligent and coordinated optimization with the vessel's existing electrical system.

Salt spray corrosion resistance is the lifeline for the system's long-term reliable operation. All exposed components, including the wind turbine tower, blades, and generator housing, as well as the solar photovoltaic panel supports, frames, and junction boxes, must use highly corrosion-resistant materials and processes. This typically means using stainless steel, special aluminum alloys, and applying multiple layers of heavy-duty anti-corrosion coatings. Electrical components must achieve a high level of waterproof and dustproof protection and use corrosion-resistant sealed terminals. The system structure must be robust enough to withstand continuous vibrations, humidity, and salty sea winds at sea, ensuring stable power generation even in harsh environments.

The system needs intelligent and optimized integration with the vessel's electrical system. Wind and solar power generation is inherently volatile and requires coordinated management through an intelligent controller. The controller automatically adjusts power distribution based on power generation, battery level, and onboard electrical load. For example, priority is given to using wind and solar power for everyday equipment (such as lighting, navigation, communication, and cooling), with excess energy stored in dedicated batteries. When in port or at anchor, the wind and solar system can be the primary power source, reducing auxiliary engine operation; during navigation or peak electricity demand, it works in conjunction with the ship's generators, forming a complementary system. This not only improves the stability and economy of the entire ship's electrical system but also reduces wear and tear on the main engine.

Installing a wind-solar hybrid power supply system on fishing vessels represents a green upgrade to traditional fishing operations. It directly reduces operating costs and increases fishermen's income, while also reducing noise and air pollution, improving the working environment, and representing a new trend in modern fishing vessels towards energy conservation, environmental protection, and intelligent development.