Electricity saving device

Abstract

The invention discloses an electricity saving device, comprising a system control module, a main loop control module and a chopper, wherein the main loop control module is respectively connected with the system control module and the chopper. The system control module is used for receiving the working condition data of a power grid, sent by the main loop control module, and setting the voltage reduction parameters of the main loop control module; the main loop control module is used for generating four groups of pulse width modulation signals according to the voltage reduction parameters and outputting the four groups of pulse width modulation signals to the chopper; and the chopper is used for receiving the voltage of the power grid, completing voltage reduction according to the four groups of pulse width modulation signals and outputting the voltage to loads. Based on the technical scheme, the automatic voltage stabilization type electricity saving device is provided, and by means of the technical scheme, harmonic interference is eliminated and voltage-stabilizing output is realized. In addition, according to the technical scheme, when the voltage of the power grid is lower thana preset low-voltage threshold, the power grid automatically quits an electricity-saving working state and the voltage of the power grid is directly transmitted to the loads.

Description

technical field [0001] The invention relates to the communication field, in particular to a power saving device. Background technique [0002] At present, in the field of lighting energy saving, most of them adopt similar principles, using autotransformers for voltage adjustment. [0003] The voltage of lamps is mostly high, especially in some factories and mines and other places, the voltage is high at night, often as high as 230V or more, so using an autotransformer for step-down processing and adjusting the output voltage value according to changes in voltage is also a good option for lamps. This kind of protection can greatly extend the life of the lamp. [0004] Domestic research on energy saving of street lamps started relatively late, but has developed rapidly. There are mainly the following specific implementation methods: [0005] In the early days, the more energy-saving method used was to use midnight lights to control energy conservation. Mid-night light contr...

AI Technical Summary

Problems solved by technology

The transformer self-coupling appliance used in the method of using the transformer auto-coupling voltage regulation method to save power, in practical applications, the transformer-coupling appliance will cause the voltage at the end of the line to be too low, resulting in low illumination of the street lamp at the end, and there are also stroboscopic and self-extinguishing And so on, which caused the uneven illumination of the whole line

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