Voltage reactive compensation control device of low-voltage circuit

Abstract

The invention relates to a voltage reactive compensation control device of a low-voltage circuit. The voltage reactive compensation control device comprises a shell and a low-voltage circuit phase-division automatic voltage-regulation device, wherein the shell is fixedly connected with an installation support, the low-voltage circuit phase-division automatic voltage-regulation device is arranged in the shell and comprises an A-phase voltage-regulation compensation module, a B-phase voltage-regulation compensation module and a C-phase voltage-regulation compensation module, the A-phase voltage-regulation compensation module is arranged between an A-phase line and a null line, the B-phase voltage-regulation compensation module is arranged between a B-phase line and the null line, the C-phasevoltage-regulation compensation module is arranged between a C-phase line and the null line, the A-phase voltage-regulation compensation module, the B-phase voltage-regulation compensation module andthe C-phase voltage-regulation compensation module are controlled by a controller, the controller comprises a GPRS communication module, and the control of a remote controller is accepted by the controller through the GPRS communication module. By the voltage reactive compensation control device, the problems of large current and difficulty in matching of an automatic control switch can be effectively solved, and the load balance can be achieved.

Description

technical field [0001] The invention relates to a reactive power compensation device, in particular to a low-voltage line voltage reactive power compensation control device. Background technique [0002] Large or low voltage fluctuations on the high-voltage side of the distribution transformer at the end of the 10kV long power supply line and relatively long low-voltage power supply lines will cause large voltage fluctuations at the end of the low-voltage line, and the voltage fluctuation exceeds the allowable range of national regulations. The load distribution and power consumption period at the end of the low-voltage line will be extremely uneven, which will cause three-phase imbalance: large voltage deviation of each phase, low power factor and unbalanced, urgently need phase-separated intelligent control of voltage and reactive power. [0003] There are two difficulties to be solved in the low-voltage line voltage reactive power intelligent control device: [0004] 1. ...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above-mentioned technical problems, the present invention proposes a low-voltage line voltage reactive power compensation control device, which can effectively solve the problem of large current and difficulty in matching automatic control switches, and can achieve a balanced

Images