Electric furnace power control method and device
A technology of power control and electric furnace, applied in the direction of circuit devices, reducing/preventing power oscillation, electrical components, etc., can solve problems such as power system failure, failure to consider the influence of isolated power grids, load fluctuations beyond the capacity of the power grid, etc., to improve stability and reliability effects
Active Publication Date: 2018-05-22
CHINA ENFI ENGINEERING CORPORATION
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[0005] The embodiment of the present invention provides a method and device for controlling the power of an electric furnace, to at least solve the problem of failure of the power system caused by load fluctuations exceeding the capacity of the power grid due to the influence of load changes on the isolated power grid not considered when adjusting the power of the electric furnace in related technologies technical problem
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[0022] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0023] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...
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The invention discloses a method and a device for controlling electric furnace power. Wherein, the method includes: obtaining the working frequency of the grid; comparing the working frequency of the grid with the rated frequency to obtain the frequency deviation value of the grid; obtaining the power deviation value of the electric furnace according to the frequency deviation value of the grid; and obtaining the power deviation value of the electric furnace according to the power deviation value of the electric furnace Drive the electrode up and down to adjust the power of the electric furnace. The invention solves the technical problem that when the relevant technology adjusts the electric furnace power, the impact of the load change on the isolated power grid is not considered, resulting in load fluctuations exceeding the capacity of the power grid and causing power system failures.
Description
technical field [0001] The invention relates to the technical field of smelting, in particular to an electric furnace power control method and device. Background technique [0002] In the non-ferrous and ferrous smelting industry, electric furnace is a commonly used smelting equipment. It applies voltage to the components in the furnace through electrodes, and uses the impedance of the components in the furnace to form a current to generate heat energy, thereby achieving the purpose of heating the components in the furnace. Electric furnace is a kind of high-power electrical equipment, and its power fluctuation often constitutes an impact on the power grid. Under the operating conditions of the large power grid, due to the large capacity of the power grid and the strong ability to accommodate fluctuations, the electric furnace power shock usually does not threaten the operation of the power grid, but only has a certain impact on the power quality. However, when the power su...
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IPC IPC(8): H02J3/24
CPCH02J3/241
Inventor 李刚
Owner CHINA ENFI ENGINEERING CORPORATION