Photovoltaic module cell selection and arrangement method considering temperature distribution
CN117454830BActive Publication Date: 2026-10-27CHINA THREE GORGES CORPORATION +1
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Patent Information
- Application Number
- CN202311530612.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-16
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2043-11-16
AI Technical Summary
Technical Problem
[0004]本发明解决不同地域气象环境下，太阳能电池板表面的温度分布不均匀，而温度分布的不均匀性会导致同一组件不同位置处的电池片IV输出特性不一致，增大串并联损耗，降低光伏组件输出功率，缩短光伏组件使用寿命的问题，提供一种考虑温度分布的光伏组件电池片选择及排布方法，以解决该技术问题，根据光伏组件的温度分布划分温区，并在各个温区的光伏组件通过计算选择电气特性一致的单体电池，以确保各个温区的单体电池输出的电压与电流大小一致，减少串并联之后的光伏组件的串并联损耗，提高光伏组件的输出功率，延长光伏组件的使用寿命
Benefits of technology
[0018](一)选定安装地区后，根据光伏组件在该安装地区的年度平均环境参数下工作的温度分布，将光伏组件划分为不同的温区，并计算各个温区的光伏子组件所需单体电池的电气特性，使各个单体电池在安装地区的年度工作时间运行时尽可能保持输出的电压与电流一致，减小光伏组件在年度工作时间内的损耗，提高光伏组件整体的输出功率，并且还能够延长光伏组件的使用寿命。
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Figure CN117454830B_ABST
Abstract
The application relates to a photovoltaic module cell selection and arrangement method considering temperature distribution, which comprises the following steps: S1. selecting an installation area, obtaining annual average environmental parameters of the installation area, and testing the temperature distribution of the photovoltaic module under the environmental parameters; S2. dividing the photovoltaic module into several temperature zones according to the temperature distribution; S3. taking the photovoltaic module part located in each temperature zone as a photovoltaic sub-module, selecting one as a reference sub-module, and calculating the electrical characteristics of the required single cells of other photovoltaic sub-modules; and S4. selecting appropriate single cells in series and parallel according to the electrical characteristics of the required single cells of the photovoltaic sub-modules in each temperature zone to form the photovoltaic sub-modules in each temperature zone. The single cells with consistent electrical characteristics are selected in each temperature zone, the voltage and current output of the single cells in each temperature zone are ensured to be consistent, the series and parallel loss of the photovoltaic module after series and parallel connection is reduced, the output power of the photovoltaic module is improved, and the service life of the photovoltaic module is prolonged.
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