Modularized multi-level converter loss optimization method based on optimal control
A modular multi-level, optimization method technology, applied in output power conversion devices, AC power input into DC power output, electrical components, etc. The current stress increases and other problems, so as to improve the operating life and reliability, ensure the capacitor voltage balance, and reduce the loss difference.
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[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0041] like figure 1 As shown, a method for optimizing the loss of a modularized multilevel converter based on optimal control, the method for optimizing the loss of a modularized multilevel converter includes the following steps:
[0042]Step 1: Monitor in real time the number of sub-modules n(k) and the bridge arm current i of each bridge arm to be put into the control period k in which the modular multilevel converter is currently ...
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