Solar charge and discharge control system and control method based on arm control

Abstract

The invention provides a solar charging and discharging control system based on ARM control and a control method. Solar energy is utilized for charging energy storage equipment, and the energy storage equipment is made to store the maximum energy within the shortest time through a reasonable charging circuit topological structure and a corresponding control strategy. In view of the charging control method and the charging circuit structure, the problems existing in the solar charging process are solved through reasonable topological transformation and the control method, efficient charging and storage are achieved, energy storage equipment terminal voltages higher than solar cell voltages by multiple times can be obtained, and corresponding power sources can be provided for electric equipment with a variety of different needs.

Description

technical field [0001] The invention relates to the field of high-efficiency utilization of solar energy and switching power supply, specifically a novel topological structure and intelligent control method to enable solar panels to charge supercapacitors and store sufficient power in the shortest time, ensuring Under certain circumstances, the electricity safety of some special devices. Background technique [0002] Photovoltaic power generation has the characteristics of no pollution, no noise, inexhaustible and inexhaustible. It is a kind of green energy with broad prospects and will occupy an important position in the future power supply system. In areas where cables cannot be extended such as remote deserts, oceans, and space, only natural energy can be relied on to provide electrical energy for electrical equipment. However, at night or in some unexpected situations, solar cells cannot directly supply power, so it is necessary to efficiently and quickly store solar en...

AI Technical Summary

Problems solved by technology

However, in the actual charging process, when the output voltage of the solar panel is higher than the terminal voltage of the energy storage device at the initial stage of charging, the boost charging circuit cannot work normally, which makes the inductance in the boost circuit saturated quickly, and MPPT cannot be realized. Control and fast charging; when using the same Buck-Boost charging circuit for charging, due to the need to switch the working mode in different charging processes, the special requirements for the switch duty cycle hinder the effective realization of MPPT, making the charging control very Complicated, and didn't get good results, it's hard to charge much higher than the desired solar panel output voltage

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