Self-cleaning system for a light-receiving substrate
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Solution Overview
Problem
Solar panels in desert regions face significant efficiency drops due to dust, sand, and snow accumulation, requiring frequent manual cleaning, which is time-consuming, costly, and can cause scratches. Existing cleaning methods are inefficient and often require solvents, water, and machinery.
Innovation Solution
A self-cleaning system using electrostatic waves generated by conductive traces powered by a DC source, controlled by a microcontroller, which detects dirt and snow using environmental sensors to automatically clean solar panels without physical contact, minimizing power consumption and preventing scratches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional manual cleaning methods are used, then cleaning effectiveness is improved, but surface scratches and maintenance costs increase
Solution Approach 1:
The patent replaces mechanical cleaning systems (brushes, cloths, water spraying) with an electrostatic field-based cleaning system. Conductive traces generate electrostatic waves that contactlessly remove particulates from the solar panel surface, eliminating mechanical contact that causes scratches while maintaining cleaning effectiveness.
Solution Approach 2:
The patent introduces electrostatic waves as an intermediary between the cleaning system and the solar panel surface. The conductive traces generate electrostatic fields that interact with particulates on the surface, using the electrostatic force as a mediator to remove dirt without direct mechanical contact.
2Reliability
If frequent manual cleaning is performed, then efficiency loss is reduced, but time and operational costs increase
Solution Approach 1:
The patent implements a self-service cleaning system where the solar panel cleans itself using integrated conductive traces that generate electrostatic fields. The system automatically detects and removes particulates without requiring external intervention, personnel, or equipment, thereby eliminating cleaning time losses while maintaining efficiency.
Solution Approach 2:
The patent performs preliminary cleaning action by continuously generating electrostatic fields that prevent particulate accumulation. The conductive traces are activated to remove dirt before it significantly impacts efficiency, proactively maintaining performance rather than requiring scheduled manual cleaning interventions.
3Object-affected harmful factors
If electrostatic cleaning system is implemented, then surface protection is improved, but power consumption increases
Solution Approach 1:
The patent optimizes power consumption by controlling the voltage and pulse duration of the electrostatic fields generated by the conductive traces. The system adjusts electrical parameters to generate sufficient electrostatic force for particle removal while minimizing energy input, balancing surface protection with power efficiency.
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 system effectively maintains solar panel efficiency by automatically removing dust, sand, and snow, reducing maintenance needs and power losses, while using minimal energy and avoiding surface damage.
Implementation Method 1
Each of the plurality of conductive traces outputs a pulsed electrostatic field that is created and managed by the pulsed electrostatic-field generator
Data Source
AI summary
A self-cleaning system for a light-receiving substrate is able to detect a particulate on a designated surface of the light-receiving substrate and is then able to clean off of the designated surface with contactless electrostatic waves. The self-cleaning system includes a plurality of conductive traces, a microcontroller, a pulsed electrostatic-field generator, and a direct current (DC) power source. The conductive traces are electrodes that use the electrostatic waves to levitate and move the particulate off of the designated surface. The pulsed electrostatic-field generator creates the pulsed electrostatic fields that accumulate into the electrostatic waves. The microcontroller instructs and manages the electronic parts of the self-cleaning system. The DC power source is used to power the electrical parts of the self-cleaning system.