PV Shutoff Control Chip With Reconfigurable Output Voltage
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Solution Overview
Problem
Conventional shutoff devices in photovoltaic systems require replacement when the connection structure between photovoltaic modules and shutoff devices changes, leading to high design costs due to fixed output voltage.
Innovation Solution
A shutoff device with an adjustable output voltage, featuring a shutoff device control chip with a configuration module to adjust voltage output, allowing reconfiguration without replacing the entire device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the connection structure between photovoltaic modules and shutoff devices changes, then the photovoltaic system can be reconfigured, but all shutoff devices must be replaced leading to high design costs
Solution Approach 1:
The shutoff device control chip includes a configuration module that can adjust the output voltage parameter to match different photovoltaic module configurations. This allows the same shutoff device to be used with varying numbers of photovoltaic modules (1, 2, 3, or 4 modules) by simply reconfiguring the voltage parameter rather than replacing the entire device, thereby reducing design costs while maintaining adaptability.
2Device complexity
If one shutoff device is connected to multiple photovoltaic modules, then the number of shutoff devices is reduced, but the output voltage requirement increases
Solution Approach 1:
The shutoff device control chip incorporates a configuration module that dynamically adjusts the output voltage based on the actual connection configuration of photovoltaic modules. This dynamic parameter adjustment allows the system to accommodate multiple modules per shutoff device without requiring fixed high voltage specifications, enabling flexible system design.
3Productivity
If the output voltage of shutoff devices is increased to support more photovoltaic modules, then fewer shutoff devices are needed, but the constant voltage design requires complete device replacement for any configuration change
Solution Approach 1:
The configuration module within the shutoff device control chip enables parameter changes in output voltage to accommodate different photovoltaic module configurations. This resolves the contradiction by allowing the system to maintain high productivity with fewer shutoff devices while simultaneously preserving configuration flexibility through programmable voltage adjustment rather than fixed hardware design.
Data Source
AI summary
A shutoff device, including a shutoff device control chip, where the shutoff device control chip includes a voltage output port, and a configuration module configured to adjust an output voltage of the voltage output port. Since the shutoff device control chip is provided in the shutoff device, and a voltage output port and a configuration module configured to adjust the output voltage of the voltage output port are provided in the shutoff device control chip, the shutoff device output can output different voltage values by configuring the configuration module. In this case, when a connection structure between the shutoff device and the photovoltaic module in the photovoltaic system changes, it is only necessary to reconfigure the configuration module to achieve the purpose of adjusting the output voltage of shutoff device.