A general control method for modular multilevel converters based on model predictive control
A modular multi-level, model predictive control technology, applied in power transmission AC network, output power conversion device, conversion of AC power input to DC power output, etc. Problems such as large amount of calculation
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[0089] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0090] Such as Figure 1-Figure 2 As shown, the modular multilevel converter is composed of a, b, c three-phase six bridge arms, and each bridge arm is composed of bridge arm equivalent reactance l m , Bridge arm equivalent resistance r m It is composed of N half-bridge sub-modules, a DC capacitor C is connected in parallel to the DC side of each sub-module, and the switch group S 1 , S 2 It is composed of high-power full-control devices.
[0091] Aiming at the shortcomings of the application of model predictive control in modular multilevel converters, such as large amount of calculation and complex optimization, the present invention proposes a general control method...
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