Speed changing constant frequency double feeding wind power generator exciting frequency variator based on super conductive magnetic storage energy
A technology for wind turbines and superconducting magnetic energy storage, which is applied in the direction of controlling generators, controlling generators, electrical components, etc. Operation and other problems, to achieve the effect of improving power quality, excellent output characteristics, and high frequency of harmonic content
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[0027] by figure 1 As shown, the variable speed constant frequency doubly-fed wind generator excitation frequency converter based on superconducting magnetic energy storage of the present invention includes a superconducting magnet 1, a chopper 2, a rotor-side converter 3, a grid-side converter 4, and a capacitor C , The chopper 2, the rotor-side converter 3, and the grid-side converter 4 are respectively connected to the two ends of the capacitor C. The capacitor C provides the supporting voltage for the chopper 2, and the chopper 2 passes through the rotor-side converter 3. To adjust the rotor excitation of the wind turbine, the chopper 2 exchanges active and reactive power with the grid-connected power system through the grid-side converter 4; the structure of the chopper 2 is that the emitter of the transistor G7 and the negative of the diode D7 The collector of the transistor G7 is connected to the negative terminal of the diode D8, the emitter of the transistor G8 is connec...
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