Storage battery power supply control method and system for solar LED street lamp
A LED street lamp, power supply control technology, applied in battery circuit devices, energy-saving control technology, battery load switching, etc., can solve the problems of losing the function of night lighting of street lamps and affecting the use of solar LED lamp lighting, etc., to reduce the probability of emergency stop , avoid damage, prolong the effect of discharge time
Active Publication Date: 2019-10-25
合山市华美新能源科技有限公司
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Problems solved by technology
[0004] Although the protection device in the prior art can prevent the battery from frequent deep discharge and effectively prolong the service life, but in the dark, when over-discharge is detected, the power supply will be cut off in time, which will affect the lighting use of solar LED lights and lose the role of street lights at night.
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[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.
[0023] figure 1 An implementation form of the battery power supply control method for solar LED street lamps is shown, which includes: separately collecting voltage signals of multiple voltage dividing points of the battery; The number of groups powered in parallel. figure 1 The dotted line in is the content of the omitted charging control. In order to reduce the damage of LED lamp beads during use, you can choose the same number and type of LED lamp beads in parallel connection in each group, which is also conducive to the same power of each LED lamp bead that emits light, and a consistent luminous degree is obtained.
[0024] Taking the collection of three voltage division points of the storage battery as an example, the voltage signal of each voltage division point corre...
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The invention discloses a storage battery power supply control method for a solar LED street lamp. The method comprises the steps: collecting voltage signals of a plurality of voltage division pointsof a storage battery; and according to the voltage signal drop states of the plurality of voltage division points, controlling the number of the storage batteries and the LED lamp bead group which areconnected in parallel for power supply. According to the invention, the voltage signals of the plurality of voltage division points of the storage battery are collected respectively; when the discharge of the storage battery is reduced to different degrees, different numbers of LED lamp bead groups are connected in parallel, so that the total load current of the storage battery is adjusted, the discharge time of the full-charge storage battery each time is prolonged, the damage to the storage battery caused by over-discharge at the second half night is avoided, the probability of emergency stop required by over-discharge at night is reduced, and the requirement of a whole night lamp source is met.
Description
technical field [0001] The invention relates to the technical field of batteries for solar LED street lamps, and more specifically, the invention relates to a battery power supply control method for solar LED street lamps. Background technique [0002] Solar street lights are powered by crystalline silicon solar cells, maintenance-free valve-controlled batteries (lithium-ion battery packs) store electric energy, super-bright LED lamps are used as light sources, and are controlled by intelligent charge and discharge controllers, which are used to replace traditional public electric lighting street lights. Street lights are conducive to safe travel at night. How to make full and reasonable use of the electric energy stored in solar cells to improve the service life of the batteries is very important. [0003] The use process and maintenance work of the battery have a great influence on the life of the battery. The battery is often deeply discharged, which affects the life of...
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IPC IPC(8): H02J7/00H02J7/35H05B33/08H05B44/00
CPCH02J7/0068H02J7/007H02J7/35H05B45/00Y02B20/72Y02B20/40
Inventor 何敏华
Owner 合山市华美新能源科技有限公司