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Variable-discourse universe dadaptive fuzzy control method and device for pre-roasted electrolytic aluminium production

A technology of self-adaptive fuzzy and variable universe, applied in the field of variable universe adaptive fuzzy control, which can solve the problems of complex fuzzy rule base, large experience dependence, and large lag delay.

Inactive Publication Date: 2004-12-01
BEIJING NORMAL UNIVERSITY
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Problems solved by technology

However, the fuzzy interpolation control method under the general domain of discourse has a complex fuzzy rule base, and even more than 1,000 fuzzy rules, so the calculation is more complicated, the control lag is large, and it relies heavily on the experience of human experts. The adaptability of the electrolyzer is low

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  • Variable-discourse universe dadaptive fuzzy control method and device for pre-roasted electrolytic aluminium production
  • Variable-discourse universe dadaptive fuzzy control method and device for pre-roasted electrolytic aluminium production
  • Variable-discourse universe dadaptive fuzzy control method and device for pre-roasted electrolytic aluminium production

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Embodiment Construction

[0014] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0015] Fig. 1 is a variable universe self-adaptive fuzzy control device for production of prebaked electrolytic aluminum according to the present invention. As shown in FIG. 1 , the voltage change value ΔU of the electrolytic cell 1 is transmitted to the cell control machine 2 through a voltage detection device (not shown). The tank control machine 2 receives the setting value of the alumina concentration from the upper computer 3, and the upper computer 3 will make the craftsmen look at (flame color, liquid level clarity), measure (electrolysis temperature, molecular ratio, two levels), touch ( The thickness of the furnace wall), calculation (five-day temperature trend), etc., the alumina concentration determined is selected as the set value of the alumina concentration. The tank control machine 2 uses the voltage change value ΔU of the e...

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Abstract

The present invention is variable-discourse universe adaptive fuzzy control method and device for pre-roasted electrolytic aluminium production. The device includes voltage detecting unit to detect the voltage variance of electrolytic tank; upper computer to set alumina concentration and perform concentrated control of technological operation and material feeding of the electrolytic tank; electrolytic tank controlling computer to receive the set alumina concentration value from the upper computer, perform variable-discourse universe fuzzy control calculation based on the voltage variance to obtain the current alumina feeding interval time; and executing mechanism to control the alumina feeding amount based on the received alumina feeding interval time.

Description

technical field [0001] The invention relates to a production control method and device for electrolytic aluminum, in particular to a variable universe self-adaptive fuzzy control method and device for producing electrolytic aluminum with alumina as a raw material and using a prebaked electrolytic cell. Background technique [0002] Since the 1980s, the electrolytic aluminum industry has achieved extraordinary development, the application range of aluminum has been continuously expanded, and the demand for aluminum has also been expanded. The main raw materials for electrolytic aluminum production are alumina and anode carbon blocks. At present, there are not many advanced large-scale anode prebaking tank production plants for electrolytic aluminum in my country, and the market competitiveness is very weak. Therefore, adopting advanced technology, expanding production scale and reducing environmental pollution, the market prospect of building large-scale electrolytic aluminum...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25C3/20
Inventor 李洪兴王加银谷云东冯艳宾
Owner BEIJING NORMAL UNIVERSITY
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