PV Module Wireless Hybrid Communication
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Solution Overview
Problem
The existing photovoltaic systems face reliability and cost issues due to the need for additional signal wires for communication, which are not waterproof and increase installation costs.
Innovation Solution
A photovoltaic power optimization system that uses wireless communication between photovoltaic optimizing modules and a data center unit, combined with power line communication between the data center unit and the inverter, utilizing WiFi or ZigBee protocols for wireless communication and power line communication for data exchange, enabling efficient data transmission and control signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If extra signal wires are used for communication, then communication reliability is improved, but system waterproofing is compromised and installation cost increases
Solution Approach 1:
The patent replaces mechanical signal wire connections with wireless communication technology. The photovoltaic optimizing module uses wireless communication modules to transmit data and control signals without physical signal wires, thereby eliminating the waterproofing issues and installation complexity associated with extra signal wires while maintaining communication reliability.
Solution Approach 2:
The patent utilizes the existing power line infrastructure for dual purposes: both power transmission and data communication. By integrating communication functions into the power line system, the patent eliminates the need for separate signal wires while leveraging the already-installed electrical infrastructure.
2Adaptability or versatility
If extra signal wires are used for communication, then communication function is achieved, but installation cost increases
Solution Approach 1:
The patent makes the power line system multi-functional by enabling it to carry both electrical power and communication data. This eliminates the need for additional signal wires and reduces installation costs by utilizing the existing electrical infrastructure already present in the photovoltaic system.
Solution Approach 2:
The patent merges the power transmission and data communication functions into a single infrastructure system. By combining these two functions, the patent eliminates redundant components (separate signal wires) and reduces overall installation costs while maintaining full communication capability.
3Ease of manufacture
If wireless communication is used, then installation cost is reduced, but communication rate may be affected
Solution Approach 1:
The patent employs advanced wireless communication technology that achieves communication rates sufficient for photovoltaic system control and monitoring. The wireless communication modules transmit data efficiently without the physical constraints of signal wires, maintaining adequate communication speed while significantly reducing installation complexity and cost.
Data Source
AI summary
The disclosure discloses a photovoltaic power optimization system, comprising: a plurality of photovoltaic panels; a photovoltaic optimizing module array comprising a plurality of photovoltaic optimizing modules connected in series, each of the photovoltaic optimizing modules being electrically connected to at least one of the photovoltaic panels; an inverter electrically connected to an output terminals of the photovoltaic optimizing module array for converting a DC power into an AC power; and a data center unit communicates wirelessly with at least one of the photovoltaic optimizing modules, and also communicates with the inverter via power line.