A user-side low-voltage reactive power compensation device

Abstract

The invention provides a user side low-voltage reactive power compensation device. The device is arranged between a main station and medium-low-voltage grid primary equipment. The device comprises a dual-core processor, a collector, a state quantity measurer, a video converter, mass storage equipment and a relay protection device, wherein the dual-core processor respectively receives voltage and current signals of the medium-low-voltage grid primary equipment collected by the collector, the state quantity of the medium-low-voltage grid primary equipment collected by the state quantity measurer and the digital video converted by the video converter, then performs data processing and transmits to the power distribution network main station, and controls capacitor banks of the low-voltage grid to realize the reactive power compensation; and when the device is in fault, the relay protection device is used for protecting the low-voltage reactive power compensation device. Through adding various functions such as video real-time monitoring, mass storage, high-speed communication into the conventional reactive power compensation device, the problems can be effectively solved, so that the state monitoring capability of electrical equipment is improved, and the accident hidden danger checking level of the electrical equipment is improved.

Description

technical field [0001] The invention belongs to the field of power systems, and in particular relates to a low-voltage reactive power compensation device at a user end. Background technique [0002] In the existing medium and low voltage power grids, the power quality monitoring and control system generally consists of a power quality monitoring master station, a power quality monitoring and control system, a reactive power compensation control terminal and related communication channels, such as figure 1 shown. The communication channel of the power quality monitoring and control system can sometimes be combined with the communication channel of the distribution automation system. The online monitoring system of the power system generally consists of online monitoring sensors, online monitoring terminals, online monitoring system servers and related communication channels. [0003] Among the above, the reactive power and voltage control of the power system is an important...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the existing technology, the present invention proposes a low-voltage reactive power compensation device at the user end, which overcomes the problem of dispersed reactive power compensation functions at the existing user end, improves the state monitoring ability of power equipment, and improves the hidden dangers of power equipment safety accidents. Check level

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