A five-phase inverter space vector modulation system and method with optimal switching loss
A technology of space vector modulation and five-phase inverter, which is applied in the control system, AC motor control, output power conversion device, etc. It can solve the problem that the switching loss of the inverter is not optimal, and the zero-voltage vector distribution phase is not fully utilized. Information and other issues
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[0070] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0071] Such as figure 1 As shown, the present invention provides a five-phase inverter space vector modulation system with optimal switching loss, including the following components:
[0072] The current signal acquisition unit is used to receive the phase current i of the five-phase inverter R ,i S ,i T ,i U ,i V ;
[0073] The first coordinate transformation unit is used to convert the current signal (i.e. the phase current i) under the aforementioned five-phase coordinate system ca ,i cb ,i cc ,i cd ,i ce ) into the current signal i in the two-phase stationary coordinate system 1 ;
[0074] The voltage signal acquisition unit is used to receive the DC voltage V of the five-phase inverter dc ;
[0075] A voltage sector judging unit, configured to calculate the voltage sector signal k according to the voltage signal in a giv...
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