A flexible power supply equipment for AC electric arc furnace
A technology for power supply equipment and AC arc, which is applied to AC network circuits and AC networks to reduce harmonics/ripples, convert AC power input to AC power output, etc., and can solve problems such as harmonic pollution.
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[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0043] The electric arc furnace is an electric furnace that uses the high temperature generated by the electrode arc to smelt ores and metals. For the power grid, the electric arc furnace is a nonlinear load. During the smelting process, the electric arc furnace causes the three-phase load to be unbalanced, generating reactive power and harmonics current, in order to prevent reactive power and harmonic currents from being injected into the grid and cause grid p...
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