Modular PV Power Board Layout for Flexible Rated Power
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Solution Overview
Problem
Conventional photovoltaic power generation devices have limited flexibility and fixed rated power, which cannot meet diverse user demands, leading to increased costs and reduced development efficiency in customizing power devices for different applications.
Innovation Solution
A power device with a first and second power board, where the second boost module differs in type and specification from the first, allowing for increased rated power generation and flexibility by enabling different direct-current inputs, and featuring separable power boards for improved fabrication and installation, along with heat-dissipation mechanisms for efficient cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional photovoltaic power generation device uses a fixed rated power design, then the device structure is simple and development costs are low, but the flexibility towards user ends is limited and cannot meet diverse power demands
Solution Approach 1:
The power device is divided into separate power boards (first power board with first boost module and inversion module, second power board with second boost module). Each power board can be independently designed, manufactured, and configured based on different power requirements, enabling flexibility without increasing overall device complexity
Solution Approach 2:
The power device can accommodate different direct-current inputs by configuring different combinations of power boards. The same basic structure can serve multiple power generation needs (e.g., 3kW, 5kW, 8kW configurations), making the device universally applicable to diverse user demands
2Power
If the rated power of the photovoltaic power generation device is increased, then the power generation capacity is improved, but the processing capacity limitation of conventional circuit boards is exceeded
Solution Approach 1:
Instead of using a single large circuit board that exceeds processing capacity, the patent divides the power system into multiple smaller power boards. Each power board can be manufactured using conventional circuit board processing capabilities, and then assembled together to achieve the desired total power output
Solution Approach 2:
The patent transitions from a two-dimensional single circuit board design to a three-dimensional multi-board stacked configuration. Multiple power boards are arranged vertically or in layers within the housing, enabling higher power capacity without requiring a single oversized circuit board
3Power
If multiple power boards are arranged inside the housing, then the rated power and flexibility are increased, but the heat dissipation challenge is intensified
Solution Approach 1:
The heat dissipation system is segmented to match the modular power board structure. Each power board can be equipped with its own heat radiator, allowing heat to be dissipated locally at each module rather than requiring a single large heat dissipation system for the entire device
Solution Approach 2:
Multiple heat dissipation channels from different power boards are merged into a unified heat dissipation system. The heat radiators and air channels work together as an integrated thermal management solution, efficiently dissipating heat from all power modules simultaneously
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 solution enhances the flexibility and power generation capacity of photovoltaic power devices, reducing design and development costs while improving development efficiency and heat dissipation, making the device applicable to various user ends with adaptable power requirements.
Implementation Method 1
a first heat-dissipation air channel is formed between the first component and the second component: a second heat-dissipation air channel is formed between the third component and the fourth component; and the first heat-dissipation air channel is in communication with the second heat-dissipation air channel
Data Source
AI summary
Disclosed are a power device and a photovoltaic power generation device. The power device comprises a case, a first power board, and a second power board, the first power board is arranged in the case, and a first boosting module and an inverter module are arranged on the first power board; the second power board is arranged in the case, the second power board is electrically connected to the first power board, and a second boosting module is arranged on the second power board. According to the technical solution of the present invention, the rated power generation power of the photovoltaic power generation device can be increased, and the flexibility for clients is improved.