Electric furnace power stable control system suitable for micro-grid operation and control method for control system

Abstract

The invention discloses an electric furnace power stable control system suitable for micro-grid operation and a control method for the control system. The electric furnace power stable control system comprises a first power generation apparatus and a second power generation apparatus which are used for outputting electric energy to a micro-grid, an electric furnace which serves as a load to consume the electric energy on the micro-grid, an electric power load balancing apparatus used for balancing the electric energy on the micro-grid, and a control apparatus connected with the electric furnace, the electric power load balancing apparatus, the first power generation apparatus and the second power generation apparatus and used for performing switch control on the second power generation apparatus and the electric power load balancing apparatus according to an instantaneous power change value of the electric furnace and an allowed instantaneous power change interval of the first power generation apparatus. According to the control system and the control method, the power generation apparatuses in a micro-grid operation environment can adaptively run in various working conditions of the electric furnace, so that the electric furnace can stably run, the power failure probability of the electric furnace is reduced, and the production continuity is ensured.

Description

technical field [0001] The invention relates to the field of control technology, in particular to an electric furnace power stabilization control system suitable for microgrid operation and a control method for the electric furnace power stabilization control system suitable for microgrid operation. Background technique [0002] Building factories in areas that lack public power grids usually requires companies to build their own power stations to form microgrids. . [0003] However, the disadvantages of electric furnace smelting related technologies are that the electric furnace has the characteristics of large capacity of a single device, large instantaneous power change rate, unbalanced three-phase impedance, unbalanced three-phase voltage, and lack of phase. , it is necessary to control the generator to stop running, and when the electric furnace is running without phase, the generator is protected and shut down, so the probability of electric furnace power failure is h...

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Problems solved by technology

[0003] However, the disadvantages of electric furnace smelting related technologies are that the electric furnace has the characteristics of large capacity of a single device, large instantaneous power change rate, unbalanced three-phase impedance, unbalanced three-phase voltage, and lack of phase. , it is necessary to control the generator to stop running, and when the electric furnace is running without a phase, the generator will be shut down due to protection action, so the probability of electric furnace power failure is high, and the continuity of production cannot be guaranteed

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