Intelligent large-power rectification equipment monitoring and control system

Abstract

The invention proposes an intelligent large-power rectification equipment monitoring and control system. The intelligent large-power rectification equipment monitoring and control system comprises a remote monitoring device and a large-power rectification equipment control system, wherein the large-power rectification equipment control system comprises a power module, a digital signal processor (DSP) control module, a complex programmable logic device (CPLD) driving module, a data exchange module and a synchronous detection module, wherein the DSP control module is connected with the CPLD driving module through the data exchange module and is used for performing data exchange with the CPLD driving module and achieving communication with the rectification equipment control system, and the CPLD driving module is connected with the DSP control module, the data exchange module and the synchronous detection module and is used for performing data exchange with the DSP control module and sampling a synchronous signal of the rectification equipment control system. The intelligent large-power rectification equipment monitoring and control system employs architecture of a DSP and a CPLD, and the stability and the reliability of the rectification equipment control system are improved.

Description

technical field [0001] The invention relates to the field of control, in particular to an intelligent monitoring and control system for high-power rectification equipment. Background technique [0002] High-power thyristor rectifier equipment is mainly used in non-ferrous metal smelting, chemical industry, thermal experiment, papermaking, etc., such as: electrolytic aluminum, magnesium, zinc, copper and other non-ferrous metals and chemical salt electrolysis (diaphragm, ion membrane), water electrolysis, etc. Such occasions as high-current DC power supply and high precision of steady current. [0003] In recent years, customers in industries such as metallurgy and chemical industry have higher and higher requirements for high-power rectifier equipment. Especially for the aluminum electrolysis industry, the stability of DC current is one of the important factors affecting the output of aluminum electrolysis. In aluminum electrolysis, the anode effect can cause large fluctuat...

AI Technical Summary

Problems solved by technology

In aluminum electrolysis, the anode effect can cause large fluctuations in the series current; if there is no steady flow measure, the aluminum liquid level will vibrate, which will easily cause a short circuit between electrodes

For normal production, the pole distance of the electrolytic cell must be increased. As a result, unfavorable situations such as increased cell voltage, increased power consumption, excessively high cell temperature, and reduced current efficiency have occurred. Steady flow control has become an indispensable and important link in aluminum smelting. long-term attention

At present, there are analog, semi-analog, semi-digital, and all-digital high-power rectification control systems on the market, but their stability and reliability are not high

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