Self-Powered Hall Sensor Assembly for PV Cable Fault Detection
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Solution Overview
Problem
The existing photovoltaic power generation systems face inefficiencies in detection and maintenance due to the large area of solar cell modules, making it time-consuming to locate and repair faults.
Innovation Solution
A photovoltaic detection assembly is designed to be assembled on photovoltaic cables, comprising a magnetic component and a detection component. The magnetic component includes a magnetic ring and coil winding, while the detection component includes a Hall element, detection module, control module, signal module, and power module. This assembly allows for real-time monitoring and autonomous power supply, enabling efficient detection and reporting of faults.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If solar cell modules are connected in series to form large-area photovoltaic modules, then power generation capacity is improved, but fault detection time and maintenance complexity increase
Solution Approach 1:
The photovoltaic system is segmented by installing independent detection assemblies on individual cables connecting solar cell modules. Each assembly independently monitors its associated cable and module, dividing the large-scale system into smaller detectable units. This segmentation enables localized fault detection without requiring comprehensive inspection of the entire large-area photovoltaic module array.
2Power
If solar cell modules are connected in series to form large-area photovoltaic modules, then power generation capacity is improved, but maintenance complexity increases
Solution Approach 1:
The detection assembly operates autonomously with self-powered functionality. The power module harvests energy from the photovoltaic cable environment to supply the detection component, control module, and signal module, eliminating the need for external power supply infrastructure. This self-service capability reduces maintenance complexity by removing additional power management components and simplifying the overall system architecture.
3Productivity
If detection assemblies are installed on photovoltaic cables, then fault detection efficiency is improved, but device complexity increases
Solution Approach 1:
The detection assembly is designed as a universal multi-functional unit that can be installed on any photovoltaic cable connecting solar cell modules. The assembly integrates multiple functions (detection, power management, signal processing, and communication) into a single standardized component, allowing widespread deployment across large-area photovoltaic systems without requiring different detection solutions for different locations, thereby improving detection efficiency while maintaining manageable complexity through standardization.
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 photovoltaic detection assembly provides real-time monitoring and reporting of detection results, along with autonomous power supply, significantly improving the efficiency of fault detection and maintenance in photovoltaic power generation systems.
Implementation Method 1
The magnetic component comprises a magnetic ring and a coil winding around the magnetic ring
Implementation Method 2
The detection component comprises a Hall element, a detection module, a control module, a signal module, and a power module. The Hall element is disposed at the opening
Data Source
AI summary
The present disclosure discloses a photovoltaic detection assembly disposed at a cable. The photovoltaic detection assembly comprises a magnetic component and a detection component. The present disclosure has a design of a combination of the magnetic component and the detection component. The combination of magnetic component and the detection component could be used as a Hall sensor to detect related current data in the cable. The magnetic component can perform charging by electromagnetic induction by the current in the cable for supplying electric power for the detection component for automatic operation. Thus, the photovoltaic detection assembly can provide real-time monitoring and report detection result, as well as self-power supply for detection operation.