A stable and reliable flow stabilization system for rectifiers in the aluminum electrolysis industry

Abstract

A stable reliable current stabilization system of an aluminium electrolysis industry rectification station comprises an overall adjusting PLC, a single rectification set PLC, a direct-current speed-adjusting device, 1#-n# rectification sets, a single rectification set current sensor, a rectification output total-current sensor, a single rectification set current transmitter, a rectification output total-current transmitter and a connection line; the direct-current speed-adjusting device is arranged between the single rectification set PLC and the 1#-n# rectification sets; and the direct-current speed-adjusting device is inside provided with a speed loop and an electric current loop, and the speed loop and the electric current loop are both inside provided with a PID regulator belonging to a double-loop double-PID regulator. The stable reliable current stabilization system employs the double-loop double-PID regulating technology, is beneficial for improving inhibition on current stabilization system current fluctuation caused by electrical network voltage fluctuation and inhibition on fluctuating current generated during generation of anode effect in aluminium electrolysis production, and thus the stable reliable current stabilization system helps to improve the safety and the reliability of current stabilization of the rectification station current stabilization system during aluminium electrolysis production.

Description

technical field [0001] The invention relates to a stable, safe and reliable flow stabilization system for a rectification station in the aluminum electrolysis industry. Background technique [0002] The DC current stabilization system of the rectification station in the aluminum electrolysis industry plays a very important role in the production process of aluminum electrolysis. It directly provides a stable current for the aluminum electrolysis production process and ensures the stable current required for the aluminum electrolysis production. It has always been a technical problem that the aluminum electrolysis industry needs to overcome for a long time. In the process of aluminum electrolysis production, if the power supply current is unstable and the current fluctuates greatly, it will destroy the stable process and technical conditions of aluminum electrolysis production. Not only will energy consumption increase, but there will also be major equipment safety and person...

AI Technical Summary

Problems solved by technology

This will cause the anode effect time to be too long in the aluminum electrolysis production process, increase the impact time of the unsteady current on the equipment, increase the manual operation time and labor intensity, and easily cause equipment accidents and personal safety accidents, resulting in huge economic losses.

At the same time, the steady current system adopts the combination of rectifier transformer on-load voltage regulation and self-saturated reactor, which cannot adjust the current fluctuation caused by the grid voltage fluctuation.

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