Pulse width modulation method for modularization multi-level converter
A modular multi-level, pulse width modulation technology, applied in the field of power systems, can solve the problems of limited application, achieve high utilization rate, simple engineering implementation, and improved utilization rate
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[0044] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0045]The modular multilevel converter MMC is composed of three-phase six bridge arms; each bridge arm includes N sub-modules and an AC reactor in series; the sub-module includes two insulated gate bipolar transistors IGBT and their anti-parallel diodes Composed of half-bridge structure and capacitor; half-bridge structure and capacitor in parallel; one of the insulated gate bipolar transistor IGBT and its anti-parallel diode is called upper switch 1, and the other insulated gate bipolar transistor IGBT and its anti-parallel diode It is called the lower switch tube 2.
[0046] Such as Figure 4 as shown, Figure 4 It is a working flowchart of a pulse width modulation method for a modular multilevel converter provided by the present invention, and the method includes the following steps:
[0047] A. Generate a three-ph...
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