More than 170 countries have already established renewable energy targets to meet their
national increasing energy demand and also to keep their environment sustainable. Due to …

Renewable energy sources are considered as the alternative energy sources because of
rising environmental concerns and depleting conventional energy resources. Solar energy …

Compared with the widely used constant switching frequency pulse-width-modulation
(PWM) method, variable switching frequency PWM can benefit more because of the extra …

A high penetration rate of the Renewable Energy Sources (RES) can create stability,
reliability and power quality problems in the main electrical grid. The microgrid should be a …

Three-phase multilevel (ML) inverters are used in many medium-and high-power
applications such as motor drives and grid-connected systems. Despite the fact that …

A three-level inverter produces six active vectors, each of normalized magnitudes 1, 0.866,
and 0.5, besides a zero vector. The vectors of relative length 0.5 are termed pivot vectors …

This paper presents investigations on current ripple in a dual 2-level inverter feeding an
open-end winding induction motor drive. Pulsewidth modulations (PWMs) for the …

Pulse-width modulation (PWM) of a motor drive at a fixed switching frequency leads to
harmonic currents in narrow bands around integral multiples of the switching frequency …

Low switching frequency is always used in an electric rail traction induction motor control
system, in order to reduce switching losses and increase system reliability. But under low …

The three-phase pulsewidth-modulation (PWM) converter is one of the most widely used
topologies for power conversion. In order to design PWM methods, the influence of PWM …