Modular Wind Blade Robotics for Sequential Inspection and Repair

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Solution Overview

Problem

Manual inspection, repair, and upgrade of wind turbine blades are time-consuming, expensive, and often hindered by environmental conditions, necessitating a more efficient and minimally invasive method.

Innovation Solution

A modular robotic component system that includes an access module, inspection module, and additional task-specific modules, which are positioned along the wind turbine blade using a vertical rappelling system, enabling sequential performance of tasks such as inspection, cleaning, and repair without human intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual inspection, repair, and upgrade methods are used, then human technicians can perform tasks with flexibility, but the process becomes time-consuming and expensive

Engineering Contradiction:
Improvemanual operation flexibilityVSAvoidinspection and repair speed
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The robotic system performs inspection, repair, and upgrade tasks autonomously without continuous human intervention. The system self-navigates to blade locations, self-adjusts to surface contours, and self-executes repair operations, eliminating the need for manual rope access and basket operations while significantly increasing productivity

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical operations with an automated robotic system equipped with specialized end effectors. The robotic system uses controlled mechanical movements, automated drilling, filling, and sanding operations to substitute human technicians, thereby reducing time consumption while maintaining operational capability

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If manual rope access methods are used, then technicians can reach blade areas, but environmental conditions may preclude human access

Engineering Contradiction:
Improveaccess capabilityVSAvoidenvironmental condition tolerance
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The robotic system autonomously navigates to and operates on wind turbine blades without requiring human presence. It self-adjusts to various environmental conditions including high altitudes, extreme temperatures, and adverse weather, maintaining operational capability where human access is precluded by safety concerns

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The robotic system operates under different environmental parameters that would be intolerable for humans. It can function at higher altitudes, in extreme temperature ranges, and in adverse weather conditions by maintaining stable operational parameters through automated control systems, thereby expanding adaptability to environmental conditions

Inventive Principle:
Principle #35Parameter changes

3Productivity

If manual inspection and repair are performed at longer intervals, then cost is reduced, but wind turbines operate inefficiently for significant periods

Engineering Contradiction:
Improvemaintenance frequencyVSAvoidturbine efficiency
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The robotic system enables continuous or near-continuous inspection and repair operations without the downtime constraints of manual methods. By eliminating the need for extensive setup, safety briefings, and manual access procedures, the system can perform maintenance more frequently and with less disruption to turbine operation, maintaining both high productivity and reliability

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The automated robotic system performs maintenance operations more quickly and efficiently than manual methods, enabling more frequent intervention intervals. The rapid deployment and execution of repair tasks allow the system to maintain turbine efficiency by addressing issues before they significantly impact performance, thereby improving overall reliability

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Productivity

If a comprehensive robotic system is deployed, then human intervention is minimized and costs are lowered, but the system complexity increases

Engineering Contradiction:
Improvemaintenance efficiencyVSAvoidrobotic system structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The robotic system is divided into modular components including the mobile platform, end effector modules, sensing systems, and control units. Each module performs specific functions and can be independently maintained or replaced, reducing overall system complexity while maintaining comprehensive functionality for inspection, repair, and upgrade operations

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The robotic system employs a universal platform capable of performing multiple maintenance functions through interchangeable end effectors. The same base system can execute inspection, drilling, filling, sanding, and coating operations by swapping specialized tools, thereby reducing the need for multiple dedicated systems and simplifying overall device architecture

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

Data Source

PatentEP3653875B1System and method for wind blade inspection, repair and upgrade
Publication Date: 2022.05.18 GENERAL ELECTRIC CO
  • EP3653875B1 patent drawingFigure 1
  • EP3653875B1 patent drawingFigure 2
  • EP3653875B1 patent drawingFigure 3

AI summary

A method including positioning a modular robotic component proximate an area of interest on a surface of a wind turbine. The modular robotic component including a plurality of modules that perform a plurality of tasks. The method further including inspecting the area of interest with the modular robotic component for an indication requiring at least one of repair or upgrade and operating the modular robotic component to perform the plurality of tasks sequentially as the modular robotic component moves along the surface of the wind turbine. A modular robotic component and system including the modular robotic component are disclosed.