Multi-level rectifying T type converter topology structure
A technology of multi-level rectification and topology structure, which is applied in the direction of converting AC power input to DC power output, output power conversion devices, electrical components, etc. Balance, multi-level restrictions and other issues, to achieve the effect of reducing the number, high-level solutions, and good scalability
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[0018] The present invention will be further described in conjunction with accompanying drawing:
[0019] figure 1 Circuit schematic diagram for a single bridge arm, through C T1 、C T2 ...C Tk-1 、C Tk , C B1 、C B2 ...C Bk-1 、C Bk A total of 2k capacitors constitute the vertical axis of the T-type converter; through S 1 , S 2 ... S k-1 , S k A total of k bidirectional controllable switches constitute the transverse axis of the T-type converter, and the bidirectional controllable switch can be realized by two IGBTs in reverse series or other semiconductor devices capable of realizing bidirectional switching functions and their topological circuits.
[0020] bi-directional switch S i , S i+1 Node D between (i=1, 2...k-1) i and capacitance C Ti 、C Ti+1 Node D between (i=1, 2...k-1) Ti between is controlled by the unidirectional switch S Tk1 , S Tk2 ... S Tk(2k) Constitute a one-way rectification branch flowing from the horizontal axis to the vertical axis, at n...
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