Under the above-mentioned constraints, the three-phase current source inverter has nine switching states as can be seen in Table 1. These switching states can be classified as zero switching states (I0) and active switching states (I1, ..., I6).
In industrial applications power electronic converters are divided into two major classes, namely voltage source (VSI) and current source inverters (CSI). As a VSI employs modulating the voltage wave through the inverter’s legs, its counterpart relies on modulated current waveforms.
The inverter consists of three-phase balanced inductive load Ll = 2e−3 and resistive load Rl = 5 Ω. The open-loop performance can be observed in Fig.4 and the modulation and PWM formulation in Fig.5.
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A current source inverter model has been developed in the given paper that is constructed from six LTI models for the different switching modes. The overall model is in a piecewise affine form that supports the use of model predictive control.
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