Solar Panel Position Detection via Voltage Signal Analysis
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Solution Overview
Problem
Commissioning large solar panel fields is labor-intensive due to the need for manual scanning and mapping of individual solar panels, which requires significant time and resources.
Innovation Solution
A system comprising panel monitoring devices that automatically determine their relative positions by broadcasting unique identifiers and measuring output voltages, allowing for efficient grouping and mapping of solar panels in series and parallel configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual scanning and mapping of individual solar panels is used, then precise position mapping is achieved, but commissioning time and labor resources increase significantly
Solution Approach 1:
The patent replaces manual mechanical scanning operations with an automated electromagnetic field-based detection system. Panel monitoring devices automatically detect and map solar panel positions using electrical signal transmission through the panel interconnections, eliminating the need for manual bar code scanning and position recording while maintaining precise mapping accuracy.
Solution Approach 2:
The system enables panel monitoring devices to automatically determine their own positions and map the solar array configuration without external intervention. Each device autonomously detects voltage signals from adjacent panels, records position information, and contributes to the overall array mapping, making the commissioning process self-executing rather than operator-dependent.
2Measurement precision
If manual scanning and mapping of individual solar panels is used, then precise position mapping is achieved, but labor resources and complexity increase significantly
Solution Approach 1:
The patent replaces complex manual procedures involving multiple operators, bar code scanners, and position recording systems with a simplified automated electrical detection system. The panel monitoring devices use existing electrical connections between panels to automatically determine positions, reducing the need for specialized commissioning equipment and trained personnel.
Solution Approach 2:
The panel monitoring devices perform multiple functions: they monitor panel performance, detect position information, and map array configuration. By combining these functions into a single integrated system, the patent eliminates the need for separate manual operations for each task, reducing overall commissioning complexity while maintaining precise mapping capabilities.
3Productivity
If automated panel monitoring devices are deployed, then commissioning speed and efficiency are improved, but system complexity increases
Solution Approach 1:
The patent integrates position detection and array mapping functions into the existing panel monitoring devices, which are already deployed for performance monitoring. This multi-functional approach increases commissioning speed without requiring entirely new specialized equipment, as the same devices perform both monitoring and mapping tasks.
Solution Approach 2:
The system uses electrical voltage signals transmitted through the solar panel interconnections as an intermediary carrier for position information. Instead of requiring direct communication between devices, the electrical signals serve as a natural mediator that automatically reveals the array topology, simplifying the detection mechanism while enabling rapid automated mapping.
Data Source
AI summary
A system for automatically commissioning a solar panel array comprises a plurality of panel monitoring devices, each panel monitoring device connected between a positive and negative terminal of a solar panel. Each panel monitoring device comprises a switching device, the switching device configurable to disconnect an output from the solar panel. The system further compriseslogic configured to automatically obtain a relative position of each panel monitoring device in the system by appointing serially a series of masters from among the panel monitoring devices, each master in turn broadcasting a unique identifier and enabling its output. Each panel monitoring device listens to the masters' broadcasts and stores in memory the unique identifier and information indicating whether the panel monitoring device detected the masters' voltage. The panel monitoring devices determine their respective locations by analyzing the information broadcast by, and the voltage detected from, the masters.