Solar power generation system
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Solution Overview
Problem
The power conversion device in solar power generation systems generates excessive heat, requiring a controlled temperature environment that is often not met by conventional installations, especially in varying or extreme temperature conditions.
Innovation Solution
Incorporating an air lead-in tube system with a heat exchange part buried in the ground beneath solar panels, an opening part on the ground surface, and a lead-in part connecting to the power conversion device, which draws stable air using a sucking mechanism to manage device temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the power conversion device is installed in a conventional location without special temperature control, then the installation is simple and cost-effective, but the device temperature becomes unstable and may exceed the rated temperature range
Solution Approach 1:
The patent introduces an air lead-in tube as an intermediary component that channels air from the heat exchange part (buried in ground or laid in shade) to the power conversion device. This intermediary structure enables temperature control without requiring complex active cooling systems, resolving the contradiction between temperature stability and system complexity
Solution Approach 2:
The system utilizes naturally occurring cool air in the ground or shaded areas to cool the power conversion device itself. The device benefits from its own operational environment (the back side of solar panels or ground area) providing cooling air, eliminating the need for external power-consuming cooling equipment
2Reliability
If air conditioning equipment is installed to control temperature, then the power conversion device temperature can be maintained within rated range, but the system cost and complexity increase significantly
Solution Approach 1:
The air lead-in tube serves as a simple intermediary that passively transports cool air from the ground/shade area to the power conversion device, replacing complex air conditioning equipment while maintaining operational reliability through natural temperature differentials
Solution Approach 2:
The patent replaces mechanical air conditioning systems with a passive airflow system using the air lead-in tube, which relies on natural convection and pressure differences rather than mechanical compression and refrigeration cycles, thereby reducing system complexity while maintaining reliability
3Adaptability or versatility
If the power conversion device operates in harsh temperature environments, then the installation location is flexible, but the device may exceed its rated temperature range and operate inefficiently
Solution Approach 1:
The air lead-in tube system provides universal temperature control functionality that can be applied across various installation environments (different climates, locations, and ground conditions). The same basic principle of channeling cool air from the ground or shaded area works universally, allowing flexible installation while maintaining appropriate operating temperatures
Solution Approach 2:
The system changes the temperature parameter of the air supplied to the power conversion device by sourcing air from the ground or shaded areas where temperature is naturally lower and more stable, thereby adapting the device's operating temperature to suitable levels regardless of ambient environmental conditions
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
This setup allows for temperature regulation of the power conversion device by introducing stable ground air, reducing the need for air conditioning and enhancing operational efficiency and reliability in various climates.
Implementation Method 1
a heat exchange part which is laid on the ground surface in a shade on a back side of the solar cell panel or buried in a ground on the back side
Implementation Method 2
the air lead-in tube is constructed so as to draw air in the heat exchange part from the lead-in part by using sucking means
Data Source
AI summary
Through a power cable from a power collection box, a power conversion device receives DC power. The power conversion device converts the received DC power into AC power and transmits it to a power system. A plurality of air lead-in tubes are laid in parallel. Each of the air lead-in tubes includes a heat exchange part, an opening part, and a lead-in part. The heat exchange part is buried in a ground at a ground surface on a back surface of a solar cell panel. The opening part is exposed to the ground surface. The lead-in part is an opening that communicates with an interior of a building in which the power conversion device is installed. The air lead-in tubes are constructed to draw air in the heat exchange part from the lead-in part by using a sucking mechanism.