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Solar street lamp switch control device and method based on MPPT

A solar street lamp and switch control technology, which is applied in energy-saving control technology, lighting devices, lamp circuit layout, etc., to achieve the effects of saving costs, improving too early or too late, and saving energy

Pending Publication Date: 2019-07-19
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are two control methods for solar street light switches: timing switch and light sensor control switch. There is no case where the intelligent control of the switch is realized by fully considering the charging characteristics of photovoltaic panels.

Method used

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  • Solar street lamp switch control device and method based on MPPT
  • Solar street lamp switch control device and method based on MPPT
  • Solar street lamp switch control device and method based on MPPT

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Embodiment

[0038] Such as figure 1 As shown, this application proposes an MPPT-based solar street lamp switch control device, which includes a photovoltaic cell 1 , a DC / DC converter 2 , a battery 3 , and a switch controller 4 connected in sequence, and the switch controller 4 is connected to a street lamp 5 . The device also includes a digital signal processor 6 (DSP), the digital signal processor 6 is connected to the photovoltaic cell 1 through the voltage and current acquisition module 7, connected to the DC / DC converter 2 through the drive circuit 8, and connected to the switch controller 4 . The digital signal processor 6 adopts the MPPT control method, and obtains the maximum power by collecting the voltage and current of the photovoltaic cell 1, and controls the switch controller 4 by comparing the maximum power with the set threshold.

[0039] Among them, the photovoltaic cell 1 is a polysilicon solar panel assembly, which adopts the model of HT60-156P-4BB-265. The DC / DC conve...

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Abstract

The invention relates to a solar street lamp switch control device and method based on MPPT. The device comprises a photovoltaic cell, a DC / DC converter, a storage battery and a switch controller which are connected in sequence; the switch controller is connected with a street lamp; the device further comprises a digital signal processor; the digital signal processor is connected with the photovoltaic cell through a voltage and current acquisition module, is connected with the DC / DC converter through a driving circuit, and is connected with the switch controller; and the digital signal processor obtains the maximum power through collecting a voltage and a current of the photovoltaic cell by adopting an MPPT control method, and controls the switch controller by comparing the maximum power with a set threshold value. Compared with the prior art, the MPPT characteristic is used for replacing the functions of a timing switch and a light sensor of the street lamp to realize intelligent switch control of the street lamp.

Description

technical field [0001] The invention relates to the technical field of lighting equipment control, in particular to an MPPT-based solar street lamp switch control device and method. Background technique [0002] At present, crystalline silicon cells occupy a large market share in solar cells. In practical applications, when the outdoor temperature, irradiance and replacement of photovoltaic cells cannot be changed, it is necessary to give full play to the capabilities of photovoltaic cells and convert light energy as much as possible. An important way to solve this problem is to use Maximum Power Point Tracking (MPPT) technology. At this stage, solar cells are widely used in street lamp power supply, and have achieved maximum power point tracking, so that light energy can be converted into electrical energy as much as possible. In addition to enabling the solar battery to achieve the maximum charging power, the MPPT controller also contains more information that can be used...

Claims

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Application Information

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IPC IPC(8): H05B37/02
CPCH05B47/10Y02B20/72Y02B20/40
Inventor 江友华杨金婉王春吉刘子瑜谢振刚宫唯佳
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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