Modeling and Simulation of DSP Controlled SV PWM Three Phase VSI

Implementation of Random Carrier Pwm for Three-phase Vsi Drive

Digital Repetitive Controlled Three-Phase PWM Rectifier

In this paper, a digital repetitive control (RC) strategy is proposed to achieve zero tracking error for constant-voltage constant-frequency (CVCF) pulse width modulation (PWM) converters. The proposed control scheme is of “plug-in” structure: a plug-in digital repetitive controller plus a conventional controller (e.g., PD controller). The design of the plug-in repetitive learning controller is...

Compensation PWM Technique for Extended Output Voltage Range in Three-Phase VSI Using Three Shunt Resistors

This paper proposes a compensation PWM technique for the extension of output voltage ranges in three-phase VSI applications using three shunt resistors. The proposed technique aims to solve the dead zone, which occurs in high modulation indexes. In the dead zone, two phase currents cannot be sampled correctly, so that the three-phase VSI cannot be operated up to the maximum output voltage. The ...

Implementation of Different Current-controlled Pwm Strategies for Vsi

Many current-controlled PWM methods have been proposed to design high performance of current control for grid-connected inverters in distributed power generation systems. However none of them have good performance in providing low THD and, at the same time, good robustness to parameters mismatch. Two different current control methods, namely, traditional predictive current controller and robust...

Performance Investigation of Multi-Phase VSI with Simple PWM Switching Techniques

This paper presents the performance investigation of multi-phase voltage source inverter (VSI) with simple PWM switching techniques namely the harmonic injection and offset injection method. The technique discussed in this paper is easy to implement and avoid complicated controlling algorithm adapted in SVPWM technique. A generalized algorithm suitable for odd number of phases is developed in M...