Solar Array Isolation Mechanism for Emergency Safety
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Solution Overview
Problem
Photovoltaic arrays pose a safety hazard during emergencies as they continue to generate electricity even when disconnected from the grid, as the electric current is generated continuously as long as the panels are exposed to sunlight, leading to potential electrocution and fire risks.
Innovation Solution
A system with an isolation mechanism that disconnects portions of the power supply array from the rest of the array when actuated, using electric actuators or thermal fuses to redirect the electrical power away from the central conduit, thereby isolating individual solar panels and reducing the risk of electrical hazards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If solar panels are installed to generate continuous electricity during daylight hours, then energy supply capability is improved, but safety hazard during emergencies worsens
Solution Approach 1:
The solar array is divided into multiple independently isolatable portions, each with its own isolation mechanism. This segmentation allows individual portions to be disconnected from the rest of the array, enabling safety isolation of specific hazardous sections while maintaining operation of other portions.
Solution Approach 2:
An isolation mechanism acts as an intermediary component between solar panels and the electrical grid/conduit system. This intermediary device can be actuated to disconnect portions of the array, providing a controlled interface that enables safety isolation while maintaining the overall power generation capability.
2Duration of action of stationary object
If solar panels remain connected to the grid, then continuous power generation is maintained, but ability to isolate during emergencies is lost
Solution Approach 1:
Isolation mechanisms are pre-installed and positioned within the solar array system before emergencies occur. These mechanisms are ready to be actuated immediately when isolation is needed, eliminating the need for complex emergency disconnection procedures and enabling rapid safety isolation while maintaining normal continuous operation.
3Reliability
If isolation mechanisms are added to solar panels, then safety during emergencies is improved, but device complexity increases
Solution Approach 1:
The isolation function is extracted as a separate, dedicated mechanism rather than being integrated into the solar panel structure itself. This extracted isolation mechanism can be independently controlled and does not interfere with the solar panel's primary power generation function, adding safety capability while maintaining relative simplicity of the core solar array components.
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 system effectively isolates solar panel arrays from the electrical grid, reducing the risk of electrocution and fires by disconnecting the power supply during emergencies, allowing safe access and maintenance without the risk of electrical hazards.
Implementation Method 1
at least one isolation mechanism being in electrical communication with an output terminal of at least one portion of the power supply array; the isolation mechanism being arranged to disconnect the at least one portion from the power supply array when the isolation mechanism is actuated
Data Source
AI summary
A system for isolating portions of a power supply array comprising at least one isolation mechanism being in electrical communication with a terminal of at least one portion of the power supply array, the isolation mechanism being arranged to disconnect the at least one portion from the power supply array when the isolation mechanism is actuated.