Abstract New modified carrier‐based level shifted pulse width modulation approaches for single‐phase trinary dc source fed cascaded H‐bridge inverters are proposed in this article. In order to suppress the lower harmonics, carrier frequency is often tuned higher. However, switching and electromagnetic interference (EMI) problems have a significant influence on functioning controlling of inverte...

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 ...

To solve the problem of harmonic pollution to the power grid that caused by traditional diode rectifier and phase controlled rectifier, the unit power factor PWM rectifier is designed. The topology structure of the rectifier circuit is introduced and the double closed-loop control strategy in three-phase stationary coordinate system is analyzed. For the deficiency of control strategy, the contr...

In this paper, hybrid pulse width modulation algorithm for vector controlled induction motor drives is used to reduce the steady state ripple in current. Also the newly developed Hybrid PWM technique does not use angle and sector information and hence it simplifies the control algorithm. The conventional Space vector pulse width modulation (CSVPWM) algorithm gives inferior performance at higher...

This paper presents the concert exploration of a Modular Multilevel Converter (MMC) and its application for D-STATCOM. The Half Bridge (HB) sub-module is adopted in MMC due to simplicity low conduction losses. An advanced modulation technique Phase Disposition (PD) scheme applied control HB switches. converters are facing DC voltage balance problems under non-linear load conditions. Proportiona...

<span lang="EN-US">In this paper, a modified particle swarm optimization (MPSO) based maximum power point tracking (MPPT) controller is used to track the of PV system using DC-DC boost converter technology. </span><span lang="EN-GB">To raise module's input DC voltage, was employed. The powered DC-AC multilevel PWM inverter, which then delivered output AC voltage solitary induc...

The self-aligned hybrid carrier-based pulse-width modulation (PWM) for modular multilevel converters (MMC) based on decentralized control is proposed in this paper. It parallel cells a submodule (SM) using PWM, which combines the concept of level-shifted PWM (LSC-PWM) and phase-shifted (PSC-PWM) methods. By implementing system digitally, carriers align themselves. Each SM interacts with other S...

In general Pulse width modulation (PWM) techniques of a voltage source inverter (VSI) need a sinusoidal reference signal and triangular carrier signal to generate the required modulating signals for the desired output. Modifications in modulating techniques can be considered in two ways, namely modified reference and modified carrier. The existing multilevel carrier based pulse width modulation...