Solar cell with battery low-temperature auxiliary heating function and control method of solar cell

Abstract

The present invention discloses a solar cell with a battery low-temperature auxiliary heating function and a control method of the solar cell and belongs to the electric power measuring device technical field. The solar cell with the battery low-temperature auxiliary heating function includes a solar panel, a solar controller connected with the solar panel, and a heat preservation box; a storage battery and a battery low-temperature auxiliary heating device are arranged in the heat preservation box; and the battery low-temperature auxiliary heating device comprises a power source module, an MCU module, measurement modules, a display module, a wireless data transmission module, a heating module and a circuit switching module for controlling load output, wherein the measurement modules comprise a current measurement module, a temperature measurement module and a voltage measurement module which are respectively used for measuring the current, temperature and voltage of the storage battery. The solar cell of the invention not only can detect the temperature, voltage and charging / discharging current of the storage battery, but also can realize the switching of the charging and external auxiliary heating state of the storage battery to ensure the normal operation of the storage battery.

Description

technical field [0001] The invention relates to the technical field of electric power measuring equipment, in particular to a solar battery with a low-temperature auxiliary heating function of the battery and a control method thereof. Background technique [0002] In recent years, with the rapid development of my country's economy and the emphasis on environmental protection, especially after putting forward the policy of building a conservation-oriented society, solar energy, as an inexhaustible new environmentally friendly energy source, plays an important role in heating ( Solar collectors), refrigeration (solar semiconductor refrigeration) and power generation have been widely used. In the field of solar power generation, since the input energy of the solar photovoltaic power generation system is extremely unstable, it is generally necessary to configure a battery system to work. [0003] In the process of researching solar power generation technology, the inventor found...

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Problems solved by technology

[0003] In the process of researching solar power generation technology, the inventor found that when the temperature is too low, the concentration of the reaction liquid in the battery decreases, and the chemical substances participating in the reaction decrease, which shortens the continuous discharge time of the battery, and even has no current output at all; and when the temperature is too low Even if the solar panel can obtain electric energy, it cannot charge the battery, making the battery unable to work normally; in addition, the efficiency of solar energy acquisition in winter is low, and due to the battery itself at low temperature, when the load is powered for a long time, the battery will be over-discharged and the voltage Too low, when the battery is designed, in order to prevent the charging current from being too large, a charging protection circuit is often set up. Therefore, when the battery is used in winter, the voltage is often too low and cannot be charged, so that the load supplied by the battery cannot be normal. Work

To sum up, under the influence of low temperature in winter and the battery itself, it will cause problems such as shortening the continuous discharge time of the battery, the failure of the supplied load or the failure of the battery itself.

Therefore, it is necessary to provide a battery-assisted heating device to prevent the solar power generation equipment from working normally due to low temperature

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