【Off-grid system】 solar street lighting system design

Solar street lighting system design

1.0 Overview

Nowadays, solar energy has become a recognized green energy and has been gradually applied to people's livelihood for the benefit of mankind. One of the Solar Garden Lights solar energy is a kind of application, relying on the solar radiation during the day solar photovoltaic components and generate electricity, and the generated electricity delivered to the battery for storage. Night when the light down to a certain extent or reach a certain point of time, through the controller control, so that the battery discharge of light appliances. Until the illumination rises to a certain extent or at a certain moment, automatically turn off the electricity.

2.0 system design

Solar street lights mainly by the solar module, module bracket, electric control box (built-in controller, battery), light pole (including lamps) and other parts. System diagram as shown below:

Figure 1 solar street lamp system diagram

2.1 system settings

The system uses the area as **, the average standard light hours is 4.46 hours. Set the system to work 8 hours a day, a continuous monthly rainy days for 5 days, every two consecutive rainy days interval of 20 days.

2.2 design process

The system design process includes: light pole selection, lighting selection, solar module configuration, battery, controller configuration, system protection settings.

3.0 light pole selection

Pole is the supporting part of the street lamp, and has high requirements on its hardness, height, wind resistance and corrosion resistance. Nowadays, the commonly used material is Q235, which is processed through a series of processes, and the surface is coated with 80μm coating.

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