Solar energy storage system and driving method thereof

Abstract

The invention relates to a solar energy storage system which comprises a solar panel, a charge-discharge control device, a main energy storage device, a trigger unit, an inverter and an auxiliary energy storage device. The solar panel is used for collecting solar energy and converting the solar energy into electric energy. The charge-discharge control device is connected between the solar panel and the main energy storage device. The charge-discharge control device is used for converting a DC (direct current) voltage output by the solar panel into a positively and negatively alternate pulse voltage and charging the main energy storage device by using a positive pulse voltage, wherein the positively and negatively alternate pulse voltage comprises the positive pulse voltage and a negative pulse voltage. The trigger unit is connected with the charge-discharge control device and the inverter. The trigger unit is used for switching on the inverter in the time period of the negative pulse voltage. The inverter is connected to the auxiliary energy storage device. The inverter is used for converting the negative pulse voltage into the negative pulse voltage and charging the auxiliary energy storage device. The invention also provides a driving method of the solar energy storage system.

Description

technical field [0001] The invention relates to solar energy technology, in particular to a solar energy storage system and a driving method thereof. Background technique [0002] As a new type of energy, solar energy is used more and more widely. For example, various applications such as solar-powered lighting devices, using solar energy to power electronic products, and using solar energy to drive automobiles are emerging. The conversion of solar energy into electricity is an important aspect of solar energy applications, which requires the use of solar energy storage systems. [0003] In the prior art, a solar energy storage system generally includes a solar panel, a charging and discharging control device, and an energy storage device. Solar panels are used to collect solar energy and convert it into electricity. The charging and discharging control device is used to control the solar panel to charge the energy storage device and control the energy storage device to s...

AI Technical Summary

Problems solved by technology

However, the negative pulse voltage will be consumed on the charge and discharge control device, causing the charge and discharge control device to generate heat, thereby reducing the service life of the charge and discharge control device

Moreover, the negative pulse voltage consumed by this part of the heat also causes a waste of energy and reduces the utilization efficiency of solar energy.

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