A bridge arm equivalent simulation method for mmc
A simulation method and bridge arm technology, applied in the field of effect simulation, can solve problems such as inability to process diode interpolation
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[0057] In order to describe the present invention more specifically, the simulation method of the present invention will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0058] like image 3 As shown, a bridge arm equivalent simulation method of MMC includes the following steps:
[0059] In this embodiment, the MMC is a three-phase half-bridge modular multilevel converter, such as figure 1 As shown, it is a three-phase six-leg structure, each phase has two bridge arms, and each bridge arm is formed by cascading N sub-modules SM and connected to the corresponding phase port through a reactor. The sub-module SM consists of two insulated gate bipolar transistors IGBT 1 ~IGBT 2 , two diodes D 1 ~D 2 , a thyristor T h and a capacitor C 0 Composition; Among them, the thyristor T h The cathode and IGBT 1 source, diode D 1 anode, IGBT 2 drain and diode D 2 The cathode is connected and used as one end of the s...
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