Modeling and simulation of inverter-controlled hybrid photovoltaic-wind connected to the grid generation system

The rapid growth demand for energy and the depletion of fossil fuels leads researchers to develop alternative and sustainable energies sources like wind and solar renewable sources which is becoming the largest potential in renewable energies. The aim of this project is to design I Ok W hybrid PY-Wind hybrid connected to the grid generation system, this system is regulated by the common DC link in order to contribute some power to the grid. The project consists of Permanent Magnet Synchronous (PMSG) as a wind generator, solar connected in series and parallel modules, DC-DC Boost converter equipped with MPPT, this, Maximum power point tracker (MPPT) control is essential to extract the maximum power of the output of photovoltaic power generation system and wind turbine at its maximum power point. Perturbation & observation (P&O) strategy is utilized and modelled in MATLAB/Simulink. This strategy is modest in operation and hardware requirement is minimal, a Phase Locked Loop (PLL) is used for control of multifunctional YSC. The voltage source converter (YSC) controller uses the load and source forward terms for fast dynamic response by regulating and giving required power to the grid. The simulation studies are performed on MATLAB/Simulink. The alternating power from the sources is connected voltage source inverter which regulates the injected DC voltages before sending to the grid. This inve11er transfers the energy drawn from the wind turbine and PY array to the grid by keeping common DC voltage in constant value. The simulation results demonstrates the control performance and dynamic behaviour of the hybrid PY-wind connected to the grid generation system by using MA TLAB/Simulink

Modeling and simulation of inverter-controlled hybrid photovoltaic-wind connected to the grid generation system

The rapid growth demand for energy and the depletion of fossil fuels leads researchers to develop alternative and sustainable energies sources like wind and solar renewable sources which is becoming the largest potential in renewable energies. The aim of this project is to design I Ok W hybrid PY-Wind hybrid connected to the grid generation system, this system is regulated by the common DC link in order to contribute some power to the grid. The project consists of Permanent Magnet Synchronous (PMSG) as a wind generator, solar connected in series and parallel modules, DC-DC Boost converter equipped with MPPT, this, Maximum power point tracker (MPPT) control is essential to extract the maximum power of the output of photovoltaic power generation system and wind turbine at its maximum power point. Perturbation & observation (P&O) strategy is utilized and modelled in MATLAB/Simulink. This strategy is modest in operation and hardware requirement is minimal, a Phase Locked Loop (PLL) is used for control of multifunctional YSC. The voltage source converter (YSC) controller uses the load and source forward terms for fast dynamic response by regulating and giving required power to the grid. The simulation studies are performed on MATLAB/Simulink. The alternating power from the sources is connected voltage source inverter which regulates the injected DC voltages before sending to the grid. This inve11er transfers the energy drawn from the wind turbine and PY array to the grid by keeping common DC voltage in constant value. The simulation results demonstrates the control performance and dynamic behaviour of the hybrid PY-wind connected to the grid generation system by using MA TLAB/Simulink

Multiband Antennas Design Techniques for 5G Networks: Present and Future Research Directions

With the development of wireless communication system has demanded compact wireless devices that allow more space to integrate the other electronics components. Advancement in technology creates challenges in implementing antenna for multiple RF band with a wide range of frequencies. With the advancement of optimization technique we can improve the antenna design as well as provide us the motivation of analyzing the existing studies in order to categorize and synthesize them in a meaningful manner. The objective of this paper contributes in two ways. First, it provides the research and development trends and novel approaches in design of multiband MIMO, smart reconfigurable and defected ground structure (DGS) antenna techniques for wireless system. Secondly, it highlights unique design issue reported in literature. The proposed paper aim is filling the gap in the literature and providing the researcher a useful reference

A Hepta-band Antenna Loaded with E-shaped Slot for S/C/X-band Applications

A compact planar multiband antenna operating at 3.1 (S-band) /4.7/6.4/7.6 (C-band) /8.9/10.4/11.8 GHz (X-band) is presented. The proposed Microstrip Patch Antenna (MSPA) consists of a rectangular radiator in which an E-shaped slot is etched out and a microstrip feed line. The E-shaped slot modifies the total current path thereby making the antenna to operate at seven useful bands. No external impedance matching circuit is used and the impedance matching at these bands are solely achieved by using a rectangular microstrip feed line of length 10mm (L6) and width 2mm (W10). The antenna has a compact dimension of and exhibits S11<-10dB bandwidth of about 6.45% (3.2-3.0GHz), 8.5% (4.9-4.5GHz), 7.6% (6.7-6.2GHz), 3.9% (7.8-7.5GHz), 5.7% (9.1-8.6GHz), 1.2% (10.44-10.35GHz) and 2.2% (11.87-11.62GHz). The simulation analysis of the antenna is carried out by using HFSS v.13.

2009 Index IEEE Antennas and Wireless Propagation Letters Vol. 8

This index covers all technical items - papers, correspondence, reviews, etc. - that appeared in this periodical during the year, and items from previous years that were commented upon or corrected in this year. Departments and other items may also be covered if they have been judged to have archival value. The Author Index contains the primary entry for each item, listed under the first author\u27s name. The primary entry includes the coauthors\u27 names, the title of the paper or other item, and its location, specified by the publication abbreviation, year, month, and inclusive pagination. The Subject Index contains entries describing the item under all appropriate subject headings, plus the first author\u27s name, the publication abbreviation, month, and year, and inclusive pages. Note that the item title is found only under the primary entry in the Author Index

2008 Index IEEE Transactions on Control Systems Technology Vol. 16

This index covers all technical items - papers, correspondence, reviews, etc. - that appeared in this periodical during the year, and items from previous years that were commented upon or corrected in this year. Departments and other items may also be covered if they have been judged to have archival value. The Author Index contains the primary entry for each item, listed under the first author\u27s name. The primary entry includes the coauthors\u27 names, the title of the paper or other item, and its location, specified by the publication abbreviation, year, month, and inclusive pagination. The Subject Index contains entries describing the item under all appropriate subject headings, plus the first author\u27s name, the publication abbreviation, month, and year, and inclusive pages. Note that the item title is found only under the primary entry in the Author Index

Analysis of Tripleband Single Layer Proximity Fed 2x2 Microstrip Patch Array Antenna

Microstrip patch antennas that are multiband and downsized are required to suit the high demand of modern wireless applications. To meet this need, a one-of-a-kind triple band array antenna has been proposed. The proposed 2x2 microstrip patch array, which comprises of four hexagon-shaped radiating patches are electromagnetically excited by a centrally positioned microstrip feed line in the same plane along with a slotted ground plane, is investigated. CST Microwave Studio, a powerful 3D electromagnetic analysis programme, was used to design and optimize the array antennas. The 2x2 array antenna was constructed on a FR-4 substrate with a dielectric constant of 4.3, a loss tangent of 0.001, and a height of 1.6mm. To optimize energy coupling from the feed line to the radiating patches, the ground plane has an H-shaped groove cut into it. The suggested 2x2 array antenna\u27s multi- frequency behaviour is shown. Three resonant peaks were detected at 1.891GHz, 2.755GHz, and 3.052GHz. The observed bandwidths for these resonances are 234MHz, 69MHz, and 75MHz, respectively, with measured gains of 7.57dBi, 6.73dBi, and 5.76dBi. The goal of this work is to design, build, and test a single layer proximity fed array antenna. Standard proximity fed array antennas contain two substrate layers; however this array antenna has only one. As a consequence, the impedance matching and alignment are better. Simulated and experimental results showed that the this 2x2 array antenna operates in various important commercial bands, such as L and S bands and the array antenna might be beneficial for a wide range of wireless applications. The proposed antenna has good Impedance, S11, and radiation qualities at resonant frequencies. In this work, the 2x2 array antenna with hexagon-shaped radiating patches was successfully created utilizing the single layer proximity fed antenna concept and gap coupled parasitic patches

DESIGN AND ANALYSIS OF ARRAY OF SLOT ANTENNA FOR S-BAND APPLICATION

The analysis and design of S-band patch feed array of slot antenna for Broadband application is proposed. The array of slot antenna is able to operate at 3.5 GHz and thus the antenna becomes a necessity for many applications in recent wireless communications such as Radar, Microwave and Space Communication. The array of slot antenna offers an increased Bandwidth as compared to single slot antenna. The array of slot antenna is designed using IE3D software. The return losses are observed by the radiation pattern. The analysis of antenna parameters such as VSWR, directivity, radiation pattern (3D), return loss, gain and relation between them are performed using IE3D software

RF energy harvesters for wireless sensors, state of the art, future prospects and challenges: a review

The power consumption of portable gadgets, implantable medical devices (IMDs) and wireless sensor nodes (WSNs) has reduced significantly with the ongoing progression in low-power electronics and the swift advancement in nano and microfabrication. Energy harvesting techniques that extract and convert ambient energy into electrical power have been favored to operate such low-power devices as an alternative to batteries. Due to the expanded availability of radio frequency (RF) energy residue in the surroundings, radio frequency energy harvesters (RFEHs) for low-power devices have garnered notable attention in recent times. This work establishes a review study of RFEHs developed for the utilization of low-power devices. From the modest single band to the complex multiband circuitry, the work reviews state of the art of required circuitry for RFEH that contains a receiving antenna, impedance matching circuit, and an AC-DC rectifier. Furthermore, the advantages and disadvantages associated with various circuit architectures are comprehensively discussed. Moreover, the reported receiving antenna, impedance matching circuit, and an AC-DC rectifier are also compared to draw conclusions towards their implementations in RFEHs for sensors and biomedical devices applications