Photovoltaic Panel Control Addressing Against Signal Crosstalk
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Solution Overview
Problem
In photovoltaic systems, crosstalk between control signals from different signal controllers leads to loss of control due to electromagnetic interference, causing unintended state changes in photovoltaic panels.
Innovation Solution
The implementation of a photovoltaic system that includes a converter, a signal controller, and photovoltaic panel controllers, where control signals contain specific information such as communication addresses or device names, allowing photovoltaic panel controllers to determine whether to act on the signal based on matching pre-stored information, thereby preventing unintended control actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If high-frequency control signals are transmitted through photovoltaic cables for long-distance communication, then the control signal transmission capability is improved, but electromagnetic radiation causes crosstalk between different photovoltaic systems
Solution Approach 1:
The patent applies local quality by assigning unique identification information to each photovoltaic system and its components. The signal controller and photovoltaic panel controller use matching identification pairs to locally distinguish their own control signals from others, thereby resolving the crosstalk problem caused by electromagnetic radiation while maintaining long-distance high-frequency signal transmission capability
Solution Approach 2:
The patent introduces identification information as an intermediary mechanism. This intermediary layer of unique identifiers acts as a filter between the transmitted control signals and the receiving controllers, allowing the system to distinguish between intended and unintended signals even when electromagnetic crosstalk occurs
2Adaptability or versatility
If photovoltaic panel controllers receive control signals from multiple signal controllers, then the system coverage is improved, but the photovoltaic system loses control due to crosstalk
Solution Approach 1:
The patent ensures control reliability under multi-controller coverage by implementing local quality through unique identification pairs. Each photovoltaic panel controller is configured with identification information that matches only its designated signal controller, allowing it to selectively respond to intended control signals while ignoring signals from other controllers, thus maintaining reliable control even in large-scale systems with multiple controllers
Solution Approach 2:
The patent employs feedback mechanisms where the photovoltaic panel controller verifies the identification information in received control signals against its pre-stored matching identification. This feedback verification ensures that control actions are only executed when the control signal originates from the authorized signal controller, preventing unauthorized control while maintaining system coverage
Data Source
AI summary
One or more of the photovoltaic panel controllers determine according to specific information in a control signal whether to control one or more photovoltaic panels according to the control signal.