Floating PV Modular Structure for Wave Dissipation Offshore

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Solution Overview

Problem

Offshore photovoltaic power generation faces challenges due to harsh marine environments, including wind, waves, and currents, which affect the efficiency and stability of solar photovoltaic modules, and there is a need for integrated solutions that can resist severe sea conditions while minimizing land use and ecological impact.

Innovation Solution

A wave-dissipating and wave-resisting integrated floating photovoltaic device with a modular structure, comprising connected floating photovoltaic units supported by a wave-dissipating floating system, mooring system, and a walkway system, utilizing circular and square cross-section floating bodies and steel frames to dissipate waves and ensure structural strength, with an automatic connecting device for easy assembly and maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If photovoltaic modules are installed on land, then power generation can be achieved, but valuable land resources are occupied and shadow constraints reduce efficiency

Engineering Contradiction:
Improveland resource usageVSAvoidpower generation efficiency
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The patent transitions photovoltaic installation from the land surface (2D) to the ocean surface (3D space utilization), allowing power generation without occupying valuable land resources. The floating platform system enables solar panels to be deployed over water bodies, effectively using the third dimension (vertical space over water) to resolve the land resource conflict.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent introduces a floating platform system as an intermediary between the photovoltaic modules and the ocean environment. This mediator provides structural support, wave damping, and positioning functions, enabling the photovoltaic modules to operate over water while being protected from direct wave impact and environmental stresses.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If photovoltaic modules are deployed offshore, then land resources are saved and power generation efficiency improves, but wind, wave, and current loads reduce system stability

Engineering Contradiction:
Improvepower generation efficiencyVSAvoidsystem stability
Core Design Contradiction:
ProductivityVSStability of the object's composition

Solution Approach 1:

The patent divides the floating platform into multiple modular units that can work independently or in combination. Each module has its own buoyancy elements and support structure, allowing the system to distribute and absorb wave loads across multiple segments rather than concentrating stress on a single structure, thereby maintaining stability in harsh marine environments.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent incorporates wave damping structures and flexible connections in advance to cushion the impact of wind, wave, and current loads. The floating platform design includes energy-absorbing elements and shock-mitigating mechanisms that are built into the structure beforehand, protecting the photovoltaic modules from severe sea conditions and maintaining system stability.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Stability of the object's composition

If wave-dissipating devices are added to protect photovoltaic modules, then system stability improves, but device complexity increases

Engineering Contradiction:
Improvesystem stabilityVSAvoidstructure complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent merges the wave-dissipating function with the floating platform structure itself. The buoyancy elements, support beams, and connecting structures serve dual purposes: providing structural support for the photovoltaic modules and simultaneously acting as wave-dissipating components. This integration eliminates the need for separate, complex wave-dissipating devices while maintaining system stability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent designs the floating platform components to perform multiple functions. The same structural elements that support the photovoltaic modules also provide wave damping, buoyancy, and positioning capabilities. This multi-functionality reduces the overall number of components needed and simplifies the system while improving stability against marine environmental loads.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution effectively dissipates waves, prevents surging waves from affecting photovoltaic panels, enhances structural strength, and allows for flexible array configurations, improving power generation efficiency and convenience in severe sea conditions while conserving land and reducing ecological impact.

Implementation Method 1

the floating system is used for supporting the photovoltaic systems and bearing wave load impact

Methodology Applied
Scientific EffectBuoyancy: Archimedes' Principle (Buoyancy)

Implementation Method 2

the floating system is a wave-dissipating floating body arranged along a square area by resonant wave dissipation

Methodology Applied
Scientific EffectResonant wave dissipation: Resonance

Data Source

PatentUS11858589B1Wave-dissipating and wave-resisting integrated floating photovoltaic device capable of resisting severe sea conditions
Publication Date: 2024.01.02 JIANGSU UNIV OF SCI & TECH
  • US11858589B1 patent drawing
  • US11858589B1 patent drawing
  • US11858589B1 patent drawing

AI summary

The present disclosure provides a wave-dissipating and wave-resisting integrated floating photovoltaic device capable of resisting severe sea conditions, comprising at least one floating photovoltaic unit, wherein the floating photovoltaic units are connected through connecting pieces, and the connecting pieces can avoid collision between the floating photovoltaic units. The floating photovoltaic unit comprises a floating system, photovoltaic systems and a walkway system; the floating system is used for supporting the photovoltaic systems and bearing wave load impact; the photovoltaic systems are photovoltaic power generation systems; the walkway system is arranged between the photovoltaic systems, and the walkway system provides convenience for later maintenance of the floating photovoltaic device.