Intelligent photovoltaic power supply system adapting to extreme illumination conditions

Abstract

The invention discloses an intelligent photovoltaic power supply system adapting to extreme illumination conditions. The system comprises a photovoltaic cell module with a temperature detection function, a power supply output and communication interface module, a storage battery module, a low-power-consumption controller module, a ModBus communication module, a variable-current storage battery charging module, a variable-voltage super capacitor charging module, a low-power-consumption switching power supply module and a current and voltage detection and switching module. The system integratesa storage battery charging management function, a standby protection function in response to long-time rainy weather conditions, an electric energy collection function in an extremely weak light environment and a communication function. And the power supply problem in the current Internet of Things application is well solved. Especially for outdoor application, under the condition that no specialpower supply line exists, large-quantity, low-power and low-cost power supply deployment can be achieved. The system has the advantages of being free of maintenance, convenient to install and capableof working reliably for a long time, and the later-period maintenance cost is saved to the maximum extent.

Description

technical field [0001] The invention relates to the field of intelligent power supply devices, in particular to an intelligent photovoltaic power supply system capable of collecting electric energy in an extremely weak light environment and adapting to work in extreme light conditions such as long-term cloudy and rainy weather. Background technique [0002] At present, the application scale of the Internet of Things is growing rapidly, and the market demand for the Internet of Things is huge. IoT devices usually have the characteristics of low power consumption, low cost, and networking. In many IoT application scenarios, the outdoor IoT system has important application value and is an important part of the IoT application. However, it is very difficult to use wired power supply for many outdoor IoT devices due to the lack of environmental conditions. For example, on hillsides, in lakes, in farmland, on remote roads, etc. In these environments, although it is possible to ...

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Problems solved by technology

In view of these reasons, many current research results cannot be directly applied to the Internet of Things.

No matter how advanced and powerful the performance of an outdoor IoT device is, if there is no suitable power supply to support it, its maintenance cost and manpower consumption will be huge

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