In this paper, the concept of the modulated-ramp PWM generator is presented. The specific nonlinear behavior of this generator enables an exact linear control-to-output static conversion characteristic of DC-DC switching converters, such as the boost (step-up), buck/boost, Ćuk or Sepic, operating in Continuous Conduction Mode (CCM). The resulting linearization leads to a significant improvement...

1 Properties of the ideal rectifier.techniques programming interview exposed pdf as: multipulse rectifiers, active filters and PWM rectifiers Fig. Similar to the PWM active filter, the PWM rectifier has a complex control structure, the.PWM Rectifier with Active Filtering. Institute of Control and Industrial Electronics.source PWM rectifiers in programming logic controllers pdf different process...

The deployment of electric vehicle charging stations degrades the quality power in distribution grid. This article proposes an interval type-2 fuzzy logic controlled shunt converter coupled novel high-quality scheme for vehicles. system includes three-phase bidirectional front-end ac-dc pulsewidth modulation (PWM) converter, backend dc-dc PWM and three-wire static compensator. converters help t...

The multifunctional converter system (MFCS) is a special topology of three-phase ac motor drives, which inherently integrates dc-voltage regulation function. First, in order to explain the mechanism MFCS, an average model derived this article. An equivalent circuit developed, explicitly reveals that MFCS cascaded dc/dc converter-dc drive system. Second, inverter's mean duty cycle identified as ...

An improved single-ended push–pull (SEPP) halfbridge type zero-voltage soft-switching pulse width modulation (ZVS-PWM) DC–DC power converter is presented in this paper, which makes use of a saturable reactor-assisted lossless capacitor type zero voltage soft-switching method. The SEPP power converter with a high-frequency forward and flyback hybrid transformer link has some advantages such as l...

This paper presents the design and implementation of H-bridge converter with additional switch legs (HA converter) which acts as AC-DC rectifier as well as DC-AC inverter. In this topology a solid connection is provided between the grounds of the input and output terminals, which reduces common mode noise and makes the converter suitable for PV PCS in dc distribution system or stand-alone power...

The paper introduces the family of quasi-direct converters, i.e., forced-commutated adddac converters including small energy storage devices in the dc link. In particular, the case of three-phase to three-phase quasi-direct converter is considered. Since energy storage minimization calls for instantaneous inputloutput power balance, a proper control strategy is needed. The paper describes a sim...

The AC voltage control of a DC/DC converter based on the modular multilevel converter (MMC) is considered under normal operation and during a local DC fault. By actively setting the AC voltage according to the two DC voltages of the DC/DC converter, the modulation index can be near unity, and the DC voltage is effectively utilized to output higher AC voltage. This significantly decreases submod...