-In this a new bridgeless isolated power factor correction (PFC)-based Cuk converter-fed brushless dc (BLDC) motor drive is introduced for power factor correction and reduction in total harmonic distortion of input current. Dc link voltage of the voltage source inverter (VSI) feeding the BLDC motor is varied for speed control. This allows the operation of VSI in fundamental frequency switching ...

The interconnection of distributed energy resources (DERs) in microgrids (MGs) operating both islanded and grid-connected modes require coordinated control strategies. DERs are interfaced with voltage source inverters (VSIs) enabling interconnection. This paper proposes a load demand sharing scheme for the parallel operation VSIs an inverter-based microgrid (VSI-MG). ride-through capability hea...

The dependability of power electronics systems, such as three-phase inverters, is critical in a variety applications. Different types failures that occur an inverter circuit might affect system operation and raise the entire cost manufacturing process. As result, detecting identifying problems for devices industry. This study presents short-time Fourier transform (STFT) fault classification ide...

In this paper a high performance generalized advanced discontinuous pulse width modulation (ADPWM) algorithm for voltage source inverter (VSI) fed induction motor drives is proposed. The proposed ADPWM method uses two categories of DPWM sequences, 012, 721, 0121 and 7212 which not only reduces the inverter switching losses but also reduces the line current distortion during medium to high speed...

Pulse Width Modulated (PWM) voltage source inverters (VSIs) are extensively used in industrial and domestic applications. The versatile natural sampled sinusoidal PWM (SPWM) method can perform output voltage control with acceptable indices. In these PWM-VSI, the coarse voltage regulation is done with change in modulation depth while fine voltage regulations have not been addressed by other auth...

<span lang="EN-US">Decarbonizing power generation and reducing greenhouse gas emissions require renewable energy sources. Intermittent nature of sources can cause blackouts, fluctuation in voltage, grid-connected inverter usage, inability to predict generation, fluctuations voltage frequency. It is possible balance between the supply demand overcome these problems by using an electric spr...

Voltage source inverter (VSI) is a good candidate for grid forming microgrid because it provides constant amplitude, frequency, and sinusoidal shape voltage at point of common coupling (PCC). As the separated from utility grid, quality PCC easily affected by type load. To ensure power in operation, three-phase VSI providing automatic compensation unbalanced or nonlinear load presented this pape...

Received Feb 14, 2017 Revised Apr 14, 2017 Accepted Apr 28, 2017 This paper proposes maximum boost control for 7-level z-source cascaded h-bridge inverter and their affiliation between voltage boost gain and modulation index. Z-source network avoids the usage of external dc-dc boost converter and improves output voltage with minimised harmonic content. Z-source network utilises distinctive LC i...

This paper presents a control strategy for fuel cell/energy storage power generation system during voltage sag conditions. The hybrid DC power sources are connected to grid using power electronic converters include DC-DC converter and grid connected voltage source inverter. The power from hybrid power sources is controlled during voltage sag by designing of control strategy for DC-DC converter....

The generation of electricity based on renewable energy sources, particularly Photovoltaic (PV) system has been greatly increased and it is simply instigated for both domestic commercial uses. power generated from the PV erratic hence there a need an efficient converter to perform extraction maximum power. An improved interleaved Single-ended Primary Inductor-Converter (SEPIC) employed in propo...