Intelligent street lamp lighting energy-saving device based on alternating current chopping technology

Abstract

The invention discloses an intelligent street lamp lighting energy-saving device based on an alternating current chopping technology. The device is mainly arranged between a street lamp lighting supply transformer and a street lamp lighting fixture. The device can automatically, accurately and continuously adjust the supply voltage of the street lamp lighting fixture according to the current ambient illumination brightness, can reasonably change the lighting brightness of the street lamp lighting fixture in real time, can realize a high-efficiency and refined energy-saving effect on the premise of meeting lighting requirements, and plays an important role in reducing energy consumption and realizing energy conservation and environmental protection; in addition, the device can work out the optimal lighting line supply voltage on the premise of meeting the lighting requirements according to the load size of a lighting line, so as to carry out intelligent compensation on voltage drop on the lighting line; and the device is convenient to control, high in accuracy, quick in adjustment, simple in structure, and convenient to mount and maintain, has no harmonic basically, and has very high practical value and market promotion prospect.

Description

technical field [0001] The invention relates to the technical field of street lamp lighting energy saving, in particular to an intelligent street lamp lighting energy saving device based on AC chopping technology. Background technique [0002] Urban street lights are an important part of modern urban construction. They serve traffic safety and people's travel, leisure and life, beautify the appearance of the city, and play a pivotal role in creating a good investment environment. At present, street lighting systems generally use sodium lamps, mercury lamps, metal halide lamps and other lamps. This type of lamp has the advantages of high luminous efficiency, good light color, and easy installation, and is widely used. At the same time, it also has disadvantages such as low power factor, strict voltage requirements, and large power consumption. [0003] At present, there are the following characteristics in the power supply of street lamp lighting: 1. In the power supply syst...

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Problems solved by technology

[0014] In the patent CN2634787Y "Intelligent Street Lamp Lighting Controller", a secondary magnetic saturation filter transformer with multiple taps is used as a filter transformer circuit to supply power to lighting lamps. The control of the magnetic saturation filter transformer is complicated, the volume is large, and its voltage regulation Only fixed level voltage output

[0015] In the patent CN2812493Y "Street Lighting Intelligent Control Device", the SCR phase-controlled voltage regulation method is used to output the voltage to the lighting lamps. This method will cause a high content of harmonics in the supply current, which will affect the operation of the street lighting power supply transformer and lighting lamps. and life expectancy will be greatly negatively affected

[0016] To sum up, most of the current schemes that can realize the brightness adjustment of street lamps do not have the function of continuously and accurately adjusting the brightness of lamps and lanterns. A large number of current harmonics will be generated when the voltage of lighting lamps is adjusted in a phase-controlled manner. At the same time, only Compensate the voltage drop along the line by simply increasing the power supply voltage of the first section of the line

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