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 embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0045] The modular multi-level 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 its anti-parallel diode The half-bridge structure and the capacitor are composed; the half-bridge structure and the capacitor are connected in parallel; one of the insulated gate bipolar transistor IGBT and its anti-parallel diode is called the upper switch tube 1, and the other insulated gate bipolar transistor IGBT and its anti-parallel diode Called the lower switch tube 2.
[0046] Such as Figure 4 As shown, Figure 4 It is the working flow chart of the pulse width modulation method for modular multilevel converter provided by the present invention, and the method includes the following steps:
[0047] A. G...
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