Solar Micro-Inverter Layout Automation via Wireless Positioning
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Solution Overview
Problem
Current methods for documenting the layout of solar PV micro-inverter installations are manual, error-prone, and labor-intensive, lacking automation for registering serial numbers and locations.
Innovation Solution
A method and apparatus where micro-inverters equipped with wireless transceivers and GPS capabilities automatically gather and transmit unique identifiers and positioning information to a communications gateway, which generates a layout map, using techniques such as triangulation with anchor nodes and signal strength analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual methods (pen and paper, labels, CAD drawings) are used to document solar PV installation layouts, then the installation process can be completed, but the documentation process becomes labor-intensive and error-prone
Solution Approach 1:
The micro-inverters automatically generate and transmit their own identification data and location information to the documentation system, eliminating the need for manual data collection. Each micro-inverter serves itself by providing the documentation data that would otherwise require installer input.
Solution Approach 2:
The patent replaces manual mechanical documentation methods (writing, labeling, drawing) with an automated electronic system using wireless communications. The mechanical action of manually recording data is substituted by electronic data transmission from the micro-inverters to the documentation system.
2Extent of automation
If automated systems with wireless transceivers and GPS are implemented in micro-inverters, then layout documentation becomes automatic and accurate, but device complexity increases
Solution Approach 1:
The micro-inverter is designed to perform multiple functions: power conversion from DC to AC, wireless communication for data transmission, and GPS location tracking. By integrating these functions into a single device, the patent avoids the need for separate documentation equipment, thereby managing complexity through functional consolidation.
Solution Approach 2:
The patent introduces a documentation system that acts as an intermediary between the micro-inverters and the final layout map. This intermediary receives data from multiple micro-inverters, processes the information, and generates the comprehensive installation documentation, thereby distributing system complexity across multiple components rather than concentrating it in the micro-inverter itself.
3Quantity of substance
If multiple micro-inverters are installed in an array, then energy harvesting capacity increases, but tracking and documenting each individual device becomes increasingly difficult
Solution Approach 1:
Each micro-inverter provides feedback data including its unique identification and GPS location coordinates to the documentation system. This continuous feedback mechanism ensures that as more micro-inverters are added to the array, their information is automatically captured and recorded, preventing information loss regardless of array size.
Solution Approach 2:
The patent segments the documentation task by having each micro-inverter independently provide its own identification and location data. Rather than attempting to track the entire array as a single unit, the system collects segmented information from each individual device, making the overall tracking process manageable and scalable.
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 accurate, automated generation of solar PV installation layouts, reducing human error and administrative burden, and improving the efficiency of the installation process.
Implementation Method 1
The GPS receiver embedded in the micro-inverter, or by a mobile device such as a smart phone that is equipped with GPS receiver
Implementation Method 2
micro-inverters are equipped with communications devices such as wireless transceivers
Data Source
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AI summary
For an array of installed energy harvesting devices, a method of gathering information about individual devices in the array and generating a layout or map of the installed devices based on the gathered information is provided. A communications gateway or a base station gathers the information and determines the positions of individual micro-inverters. The gathered information is used to generate a topological or geometrical map of the installed devices.