Single-phase current-type high-frequency chain matrix power electronic transformer topology and modulation method thereof
A high-frequency transformer and power electronics technology, applied in the direction of converting AC power input to AC power output, electrical components, output power conversion devices, etc., can solve the problems of insulating oil environmental pollution, affecting normal operation, and high no-load loss. Achieve the effects of reducing switching loss, improving efficiency, and suppressing voltage spikes
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[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0030] The purpose of the present invention is to provide a single-phase current type high frequency chain matrix type power electronic transformer topology and modulation method, which can realize the output of stable AC voltage, and can also realize the output of AC voltage with variable frequency. The front stage uses the current-type integral single-pole frequency-doubled SPWM modulation method to eliminate voltage spikes on the prima...
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