Digitalized active power regulating energy-saving device

Abstract

The invention relates to a digital active regulating energy-saving device, comprising measuring circuit with induction component, control circuit and main circuit with inverter and switching device, where the signal collecting end of the measuring circuit is coupled with the electric network, the feedback end of the measuring circuit is connected with the signal input end of the control circuit, the compensating current output end of the main circuit is connected with the electric network, too, and it is characterized in that: the control circuit comprises master control DSP chip and RAM connected with the DSP; and that the control signal output end of the control circuit is connected with the inverter driving end of the main circuit and the controlled end of the switching device. The invention organically integrates active regulating device with synthetic electric-energy quality analyzer and can in time make a response, implementing high accuracy active regulation and assuring power supply quality.

Description

Technical field: [0001] The invention relates to an active power regulation energy-saving device, in particular to a new digital active power regulation energy-saving device for a three-phase 380V power distribution system. It belongs to the technical field of power facilities. Background technique: [0002] With the sustained and rapid economic development, the demand for clean and efficient power energy has been greatly increased. A lot of work has been spared in reducing wave pollution, creating a high-quality power supply environment, and striving to create a first-class power supply enterprise. However, in the power system, due to the unbalanced distribution of the terminal three-phase load, the three-phase unbalance of the system is caused, the zero-sequence current is large, and the loss of the neutral line is serious. The unbalanced operation of the transformer will greatly reduce the output of the transformer, affect the service life of the transformer, and increas...

AI Technical Summary

Problems solved by technology

[0003] The primary purpose of the present invention is to propose a stepless adjustment of the active power of the system to realize the balance of the three-phase active power of the system in view of the problems of unbalanced three-phase active power and zero-sequence current loss in the existing three-phase 380V power distribution system. Reduce the zero-sequence current loss, reduce the allowable loss of the transformer, and increase the output of the transformer, a new type of digital active power regulation energy-saving device, so as to meet the requirements of the rapid development of the power supply system

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