Heating Mat for Wind Turbine Wing Deicing
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Solution Overview
Problem
Wind turbine wings and rotor blades are prone to icing in adverse weather conditions, leading to operational downtime and economic losses, with existing solutions failing to effectively prevent or detect ice formation efficiently.
Innovation Solution
A method and device utilizing a knitted or crocheted electrically conductive heating mat with insulated outer layers, integrated with carrier layers and thermoset plastic, applied to wind turbine wings to detect and prevent ice formation, featuring adjustable mesh size and multiple heating circuits for targeted warming and de-icing, along with a central computer for monitoring and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heating systems are applied to prevent ice formation on wind turbine wings, then ice prevention capability is improved, but energy consumption increases
Solution Approach 1:
The heating system is divided into multiple independent heating circuits with individual temperature sensors and control units. Each circuit can be independently controlled based on local ice formation risk, allowing selective heating of only necessary wing sections rather than heating the entire wing surface, thus reducing overall energy consumption while maintaining effective ice prevention.
Solution Approach 2:
The heating system employs dynamic control through temperature sensors that continuously monitor wing surface temperature and adjust heating power in real-time. The control unit modulates heating circuit activation and power levels based on current thermal conditions and predicted ice formation risk, optimizing energy usage while ensuring reliable ice prevention during critical periods.
2Reliability
If comprehensive ice detection and prevention systems are implemented, then operational reliability is improved, but device complexity increases
Solution Approach 1:
Temperature sensors serve dual functions: they monitor wing surface temperature for ice detection and provide feedback for heating control. The control unit performs multiple tasks including receiving sensor data, predicting ice formation risk, controlling heating circuits, and storing operational data. This multi-functionality reduces the need for separate dedicated components, thereby managing system complexity while maintaining high operational reliability.
Solution Approach 2:
The system uses the wing's own thermal characteristics and environmental conditions to automatically determine when and where heating is needed. The temperature sensors and control unit work autonomously to detect ice formation risks and activate appropriate heating circuits without requiring external intervention or complex manual control systems.
3Reliability
If heating mats are applied to existing wind turbine wings, then ice prevention capability is improved, but installation complexity increases
Solution Approach 1:
The heating system uses flexible heating mats composed of thin heating elements that can be conformally applied to the curved surfaces of wind turbine wings. These flexible mats can be installed over existing wing surfaces without requiring structural modifications or complex mounting hardware, significantly simplifying the installation process while providing effective ice prevention coverage.
4Productivity
If multiple heating circuits with individual control are used, then heating efficiency is improved, but device complexity increases
Solution Approach 1:
Each heating circuit is equipped with temperature sensors that provide real-time feedback to the control unit. The control unit uses this feedback to dynamically adjust heating power and activation of individual circuits based on actual thermal conditions and ice formation predictions. This feedback mechanism enables efficient, localized heating control while the centralized control unit manages the complexity of coordinating multiple circuits through a unified control algorithm.
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
Enables continuous operation by preventing ice formation, reducing downtime and economic losses, with adaptive thermal output and energy-efficient ice detection and removal, allowing for real-time monitoring and control of heating patterns.
Implementation Method 1
A method and device utilizing a knitted or crocheted electrically conductive heating mat with insulated outer layers
Data Source
AI summary
The invention relates to a method for the application of heating mats (10) on a wing/blade of a wind power station or other devices for the purpose of achieving deicing also during operation when necessary. Temperature measurement and de-icing take place by means of pulsed current to the heating mat (10). The invention also relates to an arrangement.