An intelligent charging and discharging power balance control solar street lamp and its control method

Abstract

The invention discloses an intelligent charge-discharge power balance control solar street lamp and a control method based on the intelligent charge-discharge power balance control solar street lamp. The cathodes of solar batteries of a street lamp is connected with the source of an electronic input switch through a current sensor; the grid of the electronic input switch is connected with the control end of a controller; the drain of the electronic input switch and the source of an electronic output switch are connected with the cathodes of storage batteries; the output end of the current sensor is connected with the electric quantity detection end of the controller; the grid of the electronic output switch is connected with the power adjusting end of the controller; the drain of the electronic output switch is connected with the cathode of a load; the anode of the load and the anodes of the solar batteries are connected with the anodes of the storage batteries; the storage battery voltage detection end of the controller is connected with the storage batteries in parallel; and the solar battery voltage detection end of the controller is connected with the solar batteries in parallel. The method comprises following steps of storage battery set charge control, first day lighting control, second day lighting control and conventional lighting control. The lamp and the method provided by the invention have the advantages that increasing the use efficiency of the storage batteries, lighting discontinuously at all seasons and translating the lighting cycle automatically.

Description

technical field [0001] The invention belongs to the technical field of outdoor lighting, and specifically relates to an intelligent charge-discharge power balance control solar street lamp capable of enhancing battery utilization, prolonging battery life, realizing uninterrupted lighting in four seasons and automatic translation of lighting cycle and a control method thereof. Background technique [0002] Due to the use of low-voltage transmission network, traditional street lamps have long lines, complicated wiring and embedding, consume land resources, and consume a lot of manpower and material resources for maintenance and inspection, which have always been difficult for traditional street lamps to overcome. [0003] As an emerging green energy, solar energy is being rapidly popularized and applied due to its inexhaustible and non-polluting advantages. Solar street lights do not require special personnel to manage and control them. After a one-time investment, there is no ...

AI Technical Summary

Problems solved by technology

However, the above street lamp control methods are still not sufficient for the protection of the battery. The charging and discharging control method will easily lead to damage to the battery and reduce the service life of the system. Moreover, the load power is constant and cannot be turned on all night in continuous rainy days.

[0007] The existing solar street lamps still have the disadvantages of low efficiency, inability to meet the adaptive lighting time control of street lamps in different night lengths in spring, summer, autumn and winter, and high maintenance costs. This puts forward requirements for improving efficiency and reducing costs for solar street lamps

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