Moon-Que Lee et al. 199 ABSTRACT The phase noise reduction in a configuration of the HEMT oscillator with a dielectric resonator coupled by a quarter-wavelength impedance inverter is investigated. Two HEMT oscillators for a satellite payload system are manufactured in the same configuration except for the coupling configuration of the dielectric resonator (DR) in order to empirically demonstra...

As a basic building block in power systems, the three-phase voltage-source inverter (VSI) connects the distributed energy to the grid. For the inductor-capacitor-inductor (LCL)-filter three-phase VSI, according to different current sampling position and different reference frame, there mainly exist four control schemes. Different control schemes present different impedance characteristics in th...

In this paper, a new topology for boost Z-source inverterbased on switched-inductor cell is proposed. The operating modes of the proposed inverter are analyzed and also a suitable control method to generate the trigger signals of the inverter is presented. Having a common earth between the input source and inverter and capability to generate a higher voltage gain by using lower amounts of the d...

The conventional DC-link type quasi-Z-source inverter has been known as a buck–boost with low component voltage rating. This paper proposes an active by adding one switch and diode to the impedance-source network enhance gain of inverter. As result, rating is significantly reduced, which demonstrated through some comparisons between proposed topology others. A discontinuous pulse width modulati...

in recent years, there has been a fast growth in wind energy conversion system (wecs). there are two general types of wind turbines in wecs: fixed speed wind turbines and varying speed wind turbines.permanent magnet synchronous generator (pmsg) is one of the most attractive generators for the varying speed turbine wecs.in this paper, a fuzzy controller is proposed to control the current source ...

Abstract The Z-source inverter (ZSI) topology replaces multiple stages into a single stage in power conversion so it is going to be an appropriate for 1-phase grid-connected PV system. In this paper, the various z-source topologies are discussed as available different literature. This paper has proposed proportional and integral (PI) Controlled bridged solar photovoltaic (PV) network electrical...

---------------------------------------------------------------------***--------------------------------------------------------------------Abstract The changes in solar irradiation and source impedance impact on photovoltaic (PV) system control performance is examined. To acquire steady sinusoidal current tracking control for the grid-tied inverter, an internal-model-based undamped proportiona...

In this article, a new solar PV fed Dynamic Voltage Restorer (DVR) based on Trans-Z-source Inverter (TransZSI) is proposed to improve the power quality of on-grid Photovoltaic (PV) systems. DVR electronic compensator using for injecting desired voltage Point Common Coupling (PCC) as per disturbance. DVR, in place traditional VSI, TransZSI with outstanding merits buck/boost, broader range boost ...