PV String Device Ordering for Automated Module Mapping
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Solution Overview
Problem
Photovoltaic (PV) installation maintenance is hindered by the lack of accurate maps indicating the location of PV modules, leading to time-consuming troubleshooting due to the absence of automated methods for generating physical maps, resulting in potential errors and inefficiencies in identifying malfunctioning modules.
Innovation Solution
Employing methods that utilize GPS technology, barcode scanning, and wireless signal analysis to create accurate physical maps of PV installations, including the use of thermal imaging to determine module placement and order within serial strings, thereby automating the mapping process and reducing human error.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual mapping methods are used to record PV module locations, then operators can obtain installation maps, but the process is time-consuming and prone to human error
Solution Approach 1:
The patent replaces manual mechanical mapping methods with automated electronic detection systems. The inverter automatically detects PV module serial numbers through communication interfaces and records location data without human intervention, eliminating the need for operators to manually walk through installations and copy ID numbers.
Solution Approach 2:
The system enables self-service mapping where the inverter autonomously performs detection, data collection, and map generation functions. The inverter communicates with PV modules to obtain serial numbers and automatically creates installation maps without requiring external operator input or manual effort.
2Reliability
If manual mapping is performed by operators, then location information can be recorded, but human error causes inaccurate information in maps
Solution Approach 1:
The patent replaces error-prone manual recording with automated electronic detection. The inverter uses communication interfaces to automatically read PV module serial numbers and store location data, eliminating human error in data transcription and recording while maintaining system simplicity through existing communication protocols.
3Productivity
If automated mapping methods are implemented, then mapping speed and accuracy improve, but system complexity increases
Solution Approach 1:
The patent leverages the existing multi-functionality of the inverter, which already performs power conversion and monitoring functions. The same communication interfaces and processing capabilities are utilized for automated mapping, avoiding the need for separate dedicated mapping equipment and minimizing system complexity.
Solution Approach 2:
The communication interface of the inverter serves multiple purposes: power management, system monitoring, and automated mapping. This multi-functionality allows the system to perform mapping operations using existing infrastructure without adding significant complexity or requiring separate dedicated devices.
Data Source
AI summary
Various implementations described herein are directed to determining an order of power devices connected in a serial string to a central power device. The physical order may be stored in a non-volatile computer-readable storage medium.