Mains complementation controller for solar street lamp and control method of controller

Abstract

The invention discloses a mains complementation controller for a solar street lamp. The controller comprises a solar cell panel, a charging module, a microprocessor, a constant-current output module, a switching power supply, a voltage detection module and a battery. The invention also discloses a control method of the controller. The controller is skillful and reasonable in structural design, when the electric quantity stored in the battery by the solar energy is insufficient, the controller is switched to a mains supply automatically in a seamless mode, the effect that the solar energy is used preferentially and the mains supply serves as a supplement can be effectively achieved, and charging and discharging can be controlled automatically according to different working parameters and states, so that the charging and the discharging are kept at the optimal states, the utilization efficiency of the solar energy is improved, the energy resources are effectively saved, the whole process is automatic, and the intelligent degree is high. The control method is simple in step, easy to implement, capable of supplying electricity by the battery and achieving seamless switching to the mains supply, effectively guaranteeing the sufficient utilization of solar energy resources, greatly prolonging the service life of the battery and reducing the maintenance cost and beneficial to popularization and application.

Description

technical field [0001] The invention relates to the technical field of solar street lamp mains complementary technology, in particular to a solar street lamp mains complementary controller and a control method thereof. Background technique [0002] With the continuous advancement of science and technology, solar energy, as a renewable energy source, is gradually being used in the field of street lighting. At present, the solar street lamp power supply control device in the prior art generally includes a solar cell assembly, a solar street lamp controller, and a battery; wherein, the solar cell assembly charges the battery through the solar street lamp controller during the day when the sun is shining, so that the battery After dark, the solar street light controller automatically supplies power to the street lights when the lights are turned on. In order to avoid the situation that the solar cell module cannot charge the battery due to continuous rainy weather for many days...

AI Technical Summary

Problems solved by technology

Moreover, in the process of switching between solar energy and mains power, the phenomenon of flashing lights (that is, short-term power failure) often occurs, and some even appear after the street lights are turned off at night, and the mains power fully charges the battery, resulting in solar energy being unable to operate during the day. The battery is charged, causing energy waste

Therefore, the solar street lamp power supply control device in the prior art does not really realize the functions of solar energy priority and mains power supplement.

Images