![]() The 'Multilevel multiphase SVPWM' performs the multilevel multiphase space-vector PWM (SVPWM) algorithm presented in. The 'Normalize' block normalize the reference voltageģ. The 'Sine Wave f' and 'Fifth harmonic' blocks generate an unbalanced five-phase reference voltage with a fifth harmonic.Ģ. Detailed information about the modulation algorithm, its Simulink® implementation, and the simulated case can be found in. It includes a five-level five-phase inverter feeding a passive load. 1933-1942, May 2008, doi:10.1109/ example shows the operation of the Multilevel multiphase SVPWM and Two-level multiphase SVPWM. Freijedo "Multilevel Multiphase Space Vector PWM algorithm", IEEE® Transactions on Industrial Electronics, vol. Oscar Lopez, Jacobo Alvarez, Jesus Doval-Gandoy and Francisco D. The output voltage of the inverter 'Vout' has five levels in phases b, c, and d (k=2,3,4) and three levels in phase a and e (k=1,5). Therefore, the modulation is working properly. The filtered output voltage 'filtered Vout' of the converter follows the reference voltage 'Vref'. The phase shown in the scope can be selected by means of the 'Phase selection' block. 'Vout(k)' is the switched output voltage of phase 'k'. 'filtered Vout' is the output voltage of 'Vout' phase after been filtered with a low-pass filter. 'Vref' is the sampled voltage reference for each phase. Load neutral is connected to the inverter neutral. The loads are resistances with a series connected inductances. The '5-level 5-phase cascaded full-bridge inverter' block is the ideal model of the multilevel voltage-source converter.ħ. The 'Trigger signals' generates the proper trigger signals from output levels specified in each switching vector.Ħ. The 'Sequence' block provides the time sequence of switching vectors.ĥ. ![]() Both blocks require the specification of the number of phases and their outputs are a matrix with the switching vector sequence and a vector with the switching times.Ĥ. This block makes use of the block 'Two-level multiphase SVPWM', also described in, that can be used alone with two-level multiphase converters. ![]() This example shows the operation of the Multilevel multiphase SVPWM and Two-level multiphase SVPWM. ![]()
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