Predictive control error correction method based on cascaded multilevel inverter
A cascaded multi-level, error correction technology, applied in the field of control, can solve problems such as complex processes, and achieve the effects of enhancing robustness, reducing discretization errors, and reducing prediction errors
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[0096] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0097] Embodiments of the present invention propose a method for correcting predictive control errors based on cascaded multilevel inverters, including the following steps:
[0098] Step S1, based on the topology structure of the cascaded multi-level inverter, establish its mathematical model; and establish a discrete prediction model;
[0099] For cascaded multilevel inverters, such as figure 1 As shown, L is the filter inductance, R is the equivalent resistance of the filter and the switch, set u sa , u sb , u sc is the three-phase grid voltage, i a i b i c is the three-phase grid-connecte...
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