Novel space vector pulse width modulation method of five-phase inverter
A space vector pulse width, five-phase inverter technology, applied in the direction of converting AC power input to DC power output, output power conversion devices, electrical components, etc. Occupy a lot of memory, etc.
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[0034] In order to enable those skilled in the art to better understand the solution of the application, the application will be further described in detail below with reference to the accompanying drawings.
[0035] The typical topology of a five-phase inverter is such as figure 1 Shown. DC bus voltage is V dc , Each bridge arm has two upper and lower switching devices, and the five-phase load is star connection. Define the switching function of each phase as s k (k=a,b,c,d,e), s when the upper arm switch device is turned on k =1, s when the switch device of the lower bridge arm is turned on k =0. At each moment, only one switching device in the upper and lower bridge arms is turned on. The five-phase bridge arms can form 32 switching modes, corresponding to 32 space voltage vectors. When power flows in each phase load in a certain switching mode, The corresponding space vector is called the effective voltage vector, otherwise it is called the zero vector, that is, the switchi...
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