Fuzzy Neural Network Control Method for Active Power Filter Based on Terminal Sliding Mode
A technology of fuzzy neural network and power filter, which is applied in the direction of adaptive control, general control system, control/regulation system, etc., to improve the robustness of the system and overcome the effect of precise information of the system
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[0066] The present invention will be further described below in conjunction with the accompanying drawings.
[0067] A fuzzy neural network control method for an active power filter based on a terminal sliding mode includes the following steps.
[0068] (1) Establishing an active power filter model
[0069] The active power filter (APF) main circuit structure of this embodiment is as follows figure 1 shown.
[0070] The basic working principle of the active power filter is to detect the harmonic current from the power system, and generate a compensation current that is equal to the harmonic current but opposite in polarity according to the detected harmonic current, thereby eliminating the harmonic current in the power grid. wave current.
[0071] According to circuit theory and Kirchhoff's theorem, the following three different formulas can be obtained:
[0072]
[0073] Among them, v 1 ,v 2 ,v 3 are the terminal voltages of the three-phase active power filter, i 1...
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