This site provides information such as LED street light knowledge, new energy LED light design, outdoor street light Installation and maintenance, etc.
1.New Energy LED street light run management 1.1New energy LED street light operation management method Urban road lighting is an indispensable part of urban infrastructure. It provides lighting for people at night, which can effectively improve the safety of night driving, greatly reduce criminal criminal crimes, and promote urban prosperity and drive regional economic development. […]
In order to effectively control the power fluctuation caused by the change of wind speed, the control system adopts the method of adjusting the size of the unloaded load. When the difference between the measured power and the power consumption of the lead-acid battery circuit reaches a certain value, the threshold switch is closed, the […]
1) Wind power charging control unit The function of the wind power generation charging control unit is to control the charging of the battery by the wind power generator to ensure that the battery is not overcharged or overdischarged, so as to ensure the normal use of the battery and the reliable operation of the […]
In the wind solar complementary LED street lamp, the controller mainly includes three parts: wind power control unit, photoelectric control unit and battery charge and discharge control unit. The control part controls the operation mode and disconnection of the wind turbine and solar cell array according to the sunshine intensity, wind power and load changes, […]
Main features of EPDC type solar power dual output controller The main features of the EPDC type solar power dual output controller are as follows.(1) A single-chip microcomputer and special software are used to realize intelligent control.(2) Accurate discharge control is realized by correcting the discharge rate characteristics of the battery. The discharge termination voltage […]
The solar LED street light controller is the most important component in the solar LED street light system, and it is also the biggest difference from various street light systems. The performance of the controller design determines the pros and cons of the operation of the solar LED street light, so it is very important […]
PV controller hardware structure The hardware structure of the photovoltaic controller is shown in Figure 1. The controller uses AVR mega32 microprocessor as the control core. The peripheral circuits are mainly composed of battery voltage and ambient temperature detection and charge and discharge control circuit, solar cell voltage detection and group switching circuit, Load current […]
Working principle of photovoltaic controller The output characteristic curve of the solar cell is shown in Figure 1. The volt-ampere characteristic of the solar cell has a strong nonlinearity, that is, when the sunlight intensity changes, its open circuit voltage will not change much, but the maximum current generated will There is considerable variation, so […]
There are two types of VRLA batteries: one is VRLA battery using ultra-fine glass fiber membrane (AGM); the other is VRLA battery using colloidal electrolyte (GFL) (abbreviated as GFL-VRLA battery). They all use the principle of cathode absorption to seal the lead-acid battery. Therefore, there must be about 10% of the diaphragm gap in the […]
Colloidal lead-acid battery Lead-acid batteries have been the most widely used chemical power sources in military and civilian fields since their inception to the present. Since it uses sulfuric acid electrolyte, acid will flow out during transportation, and acid mist will be precipitated during charging, which will cause damage to the environment and equipment. People […]