Photovoltaic Tile Battery Series Parallel Switching
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Solution Overview
Problem
Existing photovoltaic energy generation devices face inefficiencies due to disparities among elementary cells, leading to suboptimal operation and increased energy consumption, particularly with the use of intermediate DC/AC converters and complex switch arrangements.
Innovation Solution
A photovoltaic energy generation device comprising multiple sub-assemblies and switches that can be arranged in series or parallel, controlled by a processing circuit or central computer to optimize cell usage and voltage regulation, allowing for flexible energy generation and adaptation to varying demands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If elementary photovoltaic cells are arranged in series to reach desired output voltage, then voltage requirement is met, but cells cannot operate at their optimum operating point due to disparities among cells
Solution Approach 1:
The photovoltaic generation device is divided into multiple independent sub-assemblies, each containing one or more photovoltaic cells with their own switches and control circuits. This segmentation allows each sub-assembly to be independently controlled and optimized, enabling cells to operate at their individual optimum operating points while still contributing to the overall voltage output requirement.
Solution Approach 2:
The invention introduces dynamic reconfiguration capability through switches that can change the connection topology between sub-assemblies. The system can dynamically adjust between series and parallel connections based on operating conditions, allowing the voltage and current output to be optimized in real-time while maintaining cells at their optimum operating points.
2Adaptability or versatility
If intermediate DC/AC converter devices are used to transform photovoltaic output voltage, then voltage compatibility with mains is achieved, but energy losses increase and device bulk increases
Solution Approach 1:
The invention extracts and eliminates the intermediate DC/AC converter device from the system architecture. By implementing direct voltage regulation at the photovoltaic generation level through sub-assembly switches and control circuits, the system can directly output mains-compatible voltage without requiring separate conversion equipment, thereby removing the source of energy losses and reducing system bulk.
Solution Approach 2:
The photovoltaic generation device performs its own voltage regulation and adaptation function through integrated control circuits and switches within each sub-assembly. Each sub-assembly can independently regulate its output voltage and current, enabling the entire system to self-adjust to mains voltage requirements without external conversion equipment.
3Adaptability or versatility
If switches are added to arrange cells in series or parallel for flexible generation, then adaptability to different voltage needs is improved, but device complexity increases
Solution Approach 1:
The system is segmented into standardized sub-assemblies, each with its own switch and control circuit. This modular segmentation simplifies the overall complexity by creating repeatable units that can be easily configured through software control rather than complex manual switch arrangements, making the system more adaptable while maintaining manageable complexity.
Solution Approach 2:
The invention changes the control parameter from manual physical switch configuration to automated electronic control. Processing circuits and control systems dynamically adjust the switch states based on real-time operating conditions, transforming the system from a statically complex manual configuration to a dynamically simple automated control system that achieves flexibility through parameter optimization rather than physical complexity.
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
This solution enables maximum photovoltaic cells to operate at their optimum points, reducing energy losses and eliminating the need for intermediate converters, thus enhancing energy efficiency and flexibility in energy output.
Implementation Method 1
a photovoltaic cell (7), comprising one or more elementary photovoltaic cell(s)
Data Source
Figure 1~2
Figure 3~5
Figure 6
AI summary
The invention relates to a device for generating photovoltaic energy, comprising a plurality of cells (11; 111) including a photovoltaic cell (7) comprising at least one primary photovoltaic cell, and a storage element (8) connected to the terminals of the photovoltaic cell. Said device is characterised in that it comprises sub-sets of cells (11; 111) and switches (103, 104; K7, K8, K9) that are arranged between said sub-sets and are used to arrange two sub-sets in series or in parallel.