Harmonics produced by distributed power generation systems (DPGS) is a main quality issue, particularly due to the number of these connected grid always increasing. This means that, it significant control harmonics caused inverters limit their contrary effects on quality. paper has proposed new proportional current controller (P Resonant Current Controller) with selective harmonic compensator f...

multilevel inverters has big placement advantages in power electronics and its application can be mentioned to facts tools such as upfc – d-statcom. therefore, nowadays multilevel inverters have created vast field’s research and researchers are trying to present appropriate structures with fewer keys and greater advantages. the main advantages of multilevel inverters mentioned are low-key volta...

This paper presents the comparative study of three phase twenty five level diode clamped and cascaded H-bridge multilevel inverters. The comparison is made in respect of requirement of devices, quality of output voltage and reduction of total harmonic distortion at the multilevel inverter terminals. In this work multicarrier sinusoidal pulse modulation control methods of Phase disposition (PD-P...

Today, the inverters used in telecommunic-ation sector are controlled by PWM (Palse Width Modulation ) in this control technical the need of wide range of entrance and exit fılters makes the inverters highly costed. In order to get rid of these problems the fuzzy logic controlled inverters are suggested in this study the fuzzy logic control of inverters used in telecommunication is described an...

In this paper, a Quasi-Z-Source Photovoltaic (PV) Inverter is proposed. The proposed inverter gives the solution for most of the problems associated with currently available PV inverters. In this inverter, the power conversion takes place in a single-stage itself thereby fulfilling the requirements such as, inverting dc voltage to proper ac, stepping up the input voltage, maximum power point tr...

Electrical drives for large capacity compressors in a liquefied natural gas (LNG) plant have been investigated. There are mainly two topologies for such an electrical drive; load commutated inverters (LCIs) and voltage source inverters (VSIs). Due to commutation of the thyristors, LCIs produce current harmonics with variable frequencies, and their interharmonics are significant. Therefore, tors...

A new phase-controlled series resonant dddc converter is described, analyzed, and experimentally verified. The circuit comprises a phase-controlled inverter and a Class D current-driven rectifier. The phase-controlled inverter consists of two switching legs, two resonant inductors, and a single resonant capacitor connected in series with an ac load. The phase shift between the voltages that dri...