Fast three-phase space vector modulation method based on three-dimensional coordinate system
A technology of vector modulation and coordinate system, applied in the direction of output power conversion device, high-efficiency power electronic conversion, electrical components, etc., can solve the problems that multiplication, division and trigonometric function operation cannot be completely canceled, and it is not easy to expand, so as to achieve strong scalability , optimize harmonic performance, and ensure the effect of voltage
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[0039] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0040] The fast three-phase space vector modulation method proposed by the present invention is applicable to various converters such as three-phase diode clamped multilevel, cascaded multilevel and modularized multilevel, and the three-phase Simple coordinate transformation of the voltage makes all vectors appear in the three-dimensional coordinate system established by the present invention, so that the method proposed by the present invention has the advantages of both three-dimensional space vector modulation and two-dimensional space vector modulation. In the three-dimensional coordinate system, the method proposed by the invention can easily realize the phase voltage and the line voltage of any level. In addition, the method proposed by the invention also provides several controllable factors to further improve the multi-faceted performa...
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