Three-phase load tracking energy-saving control device

Abstract

The invention discloses a three-phase load tracking energy-saving control device which is set to be power supply control aiming at different line loads and different load objects and is provided with a main control MCU (Microprogrammed Control Unit) processor for respectively controlling three slave MCU processors, wherein the three slave MCU processors respectively control regulation of voltages of an A phase, a B phase and a C phase. The three-phase load tracking energy-saving control device is additionally provided with an illuminance sensor, a temperature sensor, a voltage sampling circuit, a current sampling circuit and a phase voltage overzero sampling circuit which are connected with the main control MCU processor. The main control MCU processor determines whether a load voltage is regulated according to data of the illuminance sensor and the set time data. The three-phase load tracking energy-saving control device has the advantages that no contacts exist in a main loop, a power supply in a voltage regulating process is not interrupted and three phases can realize independent or synchronous voltage regulation and reactive compensation, and can be applied to multiple kinds of loads in a three-phase load unbalance environment. The three-phase load tracking energy-saving control device is seamlessly connected with a multi-stage monitoring system, and realizes system remote wireless monitoring management.

Description

Technical field [0001] The invention relates to a load control device, in particular to a three-phase load tracking energy-saving control device. Background technique [0002] When the voltage is too high or too low caused by the change of the grid voltage, when the load is resistive, such as street lights will flicker or go out, and the voltage will not be easy to start, etc., the luminous efficiency is low, energy is wasted, and the service life of the lamps is shortened. When the load is inductive, such as the motor will run abnormally, when the load has a change in force rate, it can't steadily exert its due power, and even damage the mechanical equipment. Summary of the invention [0003] The technical problem to be solved by the present invention is a three-phase load tracking energy-saving control device which can realize three-phase independent or synchronous voltage regulation and intelligent automatic voltage regulation control according to the actual operating state of ...

AI Technical Summary

Problems solved by technology

[0002] When the voltage is too high or too low due to the change of the grid voltage, when the load is resistive, such as street lights will flicker or go out, and the voltage is too low and it is difficult to start, etc., the luminous efficiency is low, wasting energy, and shortening the service life of the lamps.

When the load is inductive, such as the motor will not operate normally, and when the force rate of the load changes, it cannot exert its proper power smoothly, and even damage the mechanical equipment.

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