Multi-functional intelligent electrode controller

Abstract

The invention discloses a multi-functional intelligent electrode controller, which comprises a hardware part and a software part, wherein the hardware part comprises a primary side voltage transmitter, a primary side current transmitter, a secondary side voltage transmitter, a PCI (Peripheral Component Interconnect) slot high-speed data acquisition card, an Ethernet network communication card and an industrial control computer; and the software part comprises a basic electric parameter calculation module, a high-voltage heavy-current signal storage and processing module, a secondary short network parameter calculation module, a human-computer interface, a current setting gear optimization module, a communication processing module, a comprehensive data processing module, a constant arc current PID (Proportion Integration Differentiation) control module, a constant impedance PID control module, an intelligent PID control module, a neuron network control module, a comprehensive processing module and a delay characteristic processing module. According to the multi-functional intelligent electrode controller, power setting optimization is realized, energy conservation and reduction in electrode loss are facilitated, the stability of arc current in a smelting process is improved, and an oscillation phenomenon caused by possibility of super adjustment of delay existing in a hydraulic system is eliminated.

Description

technical field [0001] The invention relates to a multifunctional intelligent electrode controller, which belongs to the technical field of metallurgical automation control. Background technique [0002] The electrode controller is used to control the arc current (that is, the current, the same below) in order to realize the melting of scrap steel or the reasonable temperature rise of molten steel. Generally speaking, the electrode controller must complete at least two functions. One is to effectively control the rise and fall of the electrode to make the actual arc current as stable as possible (as close as possible to the set value of the arc current) and the electrode vibration as small as possible. Different equipment and certain technical means are used to formulate the optimal arc current setting value corresponding to different transformer voltage levels during the smelting process (the so-called power set point optimization). From the point of view of energy saving ...

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Problems solved by technology

In addition, this document does not involve another basic function of the electrode controller, that is, how to determine the set value of the arc current (that is, under different voltage levels of the transformer, how much set arc current is the optimal setting issue), This is also one of the most basic control parameters involved in the smelting process. It is impossible to complete effective estimation and determination based on manual work. If the setting is inappropriate, it will be detrimental to power consumption and electrode consumption.

Another point is that the system cannot provide technical data and means for maintenance and inspection of high-voltage equipment

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