Design, Simulation and experimental analysis of closed loop time domain based Discrete PWM buck-boost converter are described. To improve the transient response and dynamic stability of the proposed converter, Discrete PID controller is the most preferable one. Discrete controller does not require any precise analytical model of the system to be controlled. The control system of the converter i...

This paper presents an AC module inverter for photovoltaic (PV) power system. The PV inverter employs a Buck-Boost converter on the DC side and a flyback inverter on the AC side. Based on capacitive idling (CI) techniques and peak current control method, the proposed inverter shows low current distortion, high power factor, small power decoupling capacitor and soft-switching operation. Analysis...

In this paper, a non isolated multi-input multi-output dc–dc boost converter is proposed. This converter is used to implant alternative energy sources in electric vehicles. However, advantages of different sources of energy are achievable by the implant energy sources. This converter has many outputs with different voltage levels, which can be interfaced with multilevel inverters. In this conve...

This paper describes a new usage of the dc/dc converter developed by D. I. Sheppard and B. E. Taylor in 1983 for achieving high power factor and output regulation. This converter may be viewed as a cascade of a modified boost stage and a buck stage, with the two stages sharing the same active switch. Two possible operation regimes are described. In the first regime, the converter’s input part, ...

The symmetries of the topological Yang-Mills theory are studied in the Hamiltonian formalism and the generators of the twisted N=2 superPoincaré algebra are explicitly constructed. Noting that the twisted Lorentz generators do not generate the Lorentz symmetry of the theory, we relate the two by extracting from the latter the twisted version of the internal SU(2) generator. The hermiticity prop...

This paper presents a multilevel converter with regeneration capability. The converter uses several power cells connected in series, each working with reduced voltage and with an active front end at the line side. This paper presents the following: 1) the control method of each cell; 2) the use of phase-shifting techniques to reduce the current and voltage distortion; and 3) criteria to select ...

Received Sep 25, 2016 Revised Dec 01, 2016 Accepted Dec 11, 2016 Power electronic interface has reached a new level in the area of hybrid energy integration nowadays. The existence for the concept of hybrid energy integration is truly questionable without a proper power electronic interface. In this paper, a modified dual input DC-DC converter which is capable of incorporating two distinct V-I ...

This paper presents a high step-down tranformerless single-stage single-switch ac/dc converter suitable for universal line applications (90–270 Vrms ). The topology integrates a buck-type power-factor correction (PFC) cell with a buck–boost dc/dc cell and part of the input power is coupled to the output directly after the first power processing. With this direct power transfer feature and shari...

This paper presents a Selective Harmonic Elimination-PWM technology (SHE-PWM) employing H-Bridge multilevel inverter configuration. In this method variable DC voltage is used and the lower order harmonics are eliminated, without affecting the structure of the inverter. This method gives constant switching angle, so it reduces the number of steps required for offline calculation. The proposed me...

No doubt that, power electronics play an important role in the modern industry and power system networks. This paper presents the performance analysis of a multi-source, single-output, buck-boost dc-ac converter suitable for use in different applications such as feeding ac loads from photovoltaic systems. In this paper, the performance of the proposed converter is studied, through power simulat...