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2016, International Journal of Power Electronics and Drive Systems (IJPEDS)
This paper investigates an approach to reduce the injection of unwanted harmonics from the input side power source. The proposed work finds an application of a suitably designed Low Pass Filter (LPF) for harmonics reduction. The Low Pass Filter is incorporated in between the input power source and high frequency current source fed single switch parallel quasi-resonant inverter of a domestic Induction Heater. The inverter has an Insulated Gate Bipolar Junction Transistor (IGBT) switch. Undesirable harmonics injection to the input power source makes voltage and current waveforms non-sinusoidal. Fast Fourier Transform (FFT) analysis has been applied to study the effect of harmonics in frequency domain. The entire system is realized in Power System Simulator (PSIM) environment. It is finally proved that the proposed filter reduces the Total Harmonic Distortion (THD) and the Distortion Factor (DF) of the input current. It is also proved that the proposed Low Pass Filter can make the inpu...
International Journal of Power Electronics and Drive Systems (IJPEDS)
Selection of Power Semiconductor Switches in Modified Half Bridge Resonant Inverter Fitted Induction Heater in Power Line for Less Harmonic InjectionInternational Journal of Electrical and Computer Engineering (IJECE)
Behaviour of a High Frequency Parallel Quasi Resonant Inverter Fitted Induction Heater with Different Switching Frequencies2016 •
This paper investigates the behavior of a high frequency parallel quasiresonantinverter fitted domestic induction heater with different switching frequencies. The power semiconductor switch Insulated Gate Bipolar Junction Transistor (IGBT) is incorporated in this high frequency inverter that can operate under ZVS and ZCS conditions during the switching operations at certain switching frequency to reduce switching losses. The proposed induction heating system responds to three different switching frequencies with providing different results. An Insulated Gate Bipolar Junction Transistor (IGBT) provides better efficiency and faster switching operations. After the complete study of the proposed induction heating system at the selected switching frequencies, the results are compared and it is decided that most reliable, efficient and effective operations from the proposed induction heater can be obtained if the switching frequency is selected slightly above the resonant frequency of the...
HighTech and Innovation Journal
Feasible Evaluation of Shunt Active Filter for Harmonics Mitigation in Induction Heating System2021 •
This paper propounds the incorporation of a three-level inverter based Shunt Active Filter (SAF) in the Induction Heating (IH) system to eradicate the problems due to Electromagnetic Interference (EMI) & Radio Frequency Interference (RFI). The IH system generates a considerable amount of high-frequency harmonics because of myriad causes, the predominant one being the high-frequency switching in the resonant inverter. The former has an immanent propensity to flow towards the supply side and results in the enfeeblement of power quality. Moreover, in the present work, attention has been paid off to develop a proper control strategy of a three level inverter based SAF for EMI and RFI suppression. A new modeling approach of three-level inverter based SAF is proposed and the efficacy and viability of the proposed controllers for SAF in the IH system are validated via simulations in PSIM. A comparative analysis of THD in the input current waveform has been done to advocate the desideratum ...
International Journal of Electrical and Computer Engineering (IJECE)
Performance Analysis of High frequency Parallel Quasi Resonant Inverter Based Induction Heating System2016 •
This paper presents the performance analysis of high frequency parallel quasi-resonant converter for domestic induction heating application as well as industrial application. The power semiconductor switch like IGBT is incorporated in this high frequency converter. Parallel Quasi-resonant topology is selected to provide ZVS and ZCS operation during switching conditions to reduce switching losses. Here, IGBT provides better efficiency and faster switching technique. In the proposed topology, a diode is connected across the IGBT ensuring the ZVS operation during turn-ON that enhances the possibility of less turn-ON loss. On the other hand, the switching frequency nearly equal to the resonant frequency ensures the ZCS operation of the IGBT during turn-OFF, which also ensures a reduction of turn-OFF loss. As a result, the performance of the induction heating system gets improved. The proposed scheme is analyzed using PSIM software environment.
IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society
Analysis on the use of non-resonant inverters in single-phase induction heating applications2020 •
Induction heating plays an important role in industrial processes and is becoming increasingly important for household appliances such as induction cookers. Most commonly, series or parallel resonant circuits based on IGBT technology are used due to their low cost. In contrast to these, non-resonant converter types are described in this paper for the first time regarding their use in single-phase induction heating applications up to 2 kW. The analysis is based on simulation and measurement results. The proposed non-resonant converter designs offer a very small size and allow full control of the output power. Different pulse pattern for controlling the induction power are investigated. It is found that the full-bridge inverter using block or PSM pulse pattern delivers the best performance and enough power capability. For the test system, the measured average electrical efficiency is 96.8 % over the input power range of 500 W to 1750 W.
This paper presents modelling and simulation of high frequency inverter for induction heating applications. Induction heating has advantages like higher efficiency, controlled heating, safety and pollution free therefore this technology is used in industrial, domestic and medical applications. The high frequency full bridge inverter is used for induction heating, also MOSFET is used as a switching device for inverter and the control strategy used for inverter is Bipolar PWM control. The size of converter and component size are reduced by using higher switching frequency. The series resonant tank is designed and is connected to the output side of transformer to produce higher amount of current in work piece to be heated.
International Journal of Engineering Research and Technology (IJERT)
IJERT-Feasible Evaluation of a Full-Bridge Resonant Inverter for Induction Heating Appliances with Vienna Rectifier for EMI-RFI Suppression2020 •
https://www.ijert.org/feasible-evaluation-of-a-full-bridge-resonant-inverter-for-induction-heating-appliances-with-vienna-rectifier-for-emi-rfi-suppression https://www.ijert.org/research/feasible-evaluation-of-a-full-bridge-resonant-inverter-for-induction-heating-appliances-with-vienna-rectifier-for-emi-rfi-suppression-IJERTV9IS110261.pdf The present work propound the incorporation of Vienna rectifier (VR) as an integral part of the induction heating (IH) system for vanquishing of electromagnetic interference (EMI) and radio frequency interference (RFI). The IH system employs high frequency switching in the resonant inverter which results in the production of high frequency harmonics. The latter has an ingrained proclivity to flow towards the power supply which in turn the results in the exacerbation of power quality. To overcome this problem, a VR has been proposed at the input of the IH system. The former is based on waveform shaping to obtain a completely sinusoidal nature and thus, it offers a better THD than the other existing techniques using active and passive filters. Moreover, in the present work, priority has been given to the design of an optimized controller for VR for its use as an imperative and amalgamated past of the IH system.
A power electronic inverter is developed for a high-frequency induction heating application. The application requires high power for induction melting process of the electric furnace. This power-frequency product represents a significant challenge for today's power semiconductor technology. Voltage source and current source inverters both using ZCS and ZVS are analyzed and co mpared. To attain the level of performance required, d ifferent resonant topologies will compare and analyze.
ÉGYPTE ANTÉRIEURE Mélanges de préhistoire et d’archéologie offerts à Béatrix Midant-Reynes par ses étudiants, collègues et amis (ORIENTALIA LOVANIENSIA ANALECTA 304)
CHRONOLOGICAL CORRELATIONS: SOUTH LEVANTINE EB 1 AND EGYPT IN LIGHT OF NEW RADIOCARBON DATES FROM ARADLate phases of Early Bronze 1 in the southern Levant witnessed a period of intense Egyptian activity in the southwestern region along the mediterranean Littoral and at an inland site in the northern Negev. Discoveries of significant quantities of Egyptian imports and Egyptian style objects (i.e., Egyptianised), including serekhs bearing the names of Ka and Narmer, have led to many attempts at correlating EB 1 chronology with that of Egypt during Late Dynasty 0 and Early 1st Dynasty (Naqada III). Recent radiocarbon dates from the Early Bronze town of Arad and the site of Tel Erani allow for some refinements in these correlations. This paper discusses them within the context of new information from the southern Levant.
Prilozi Instituta Za Arheologiju U Zagrebu
Re-dating of three Ancient Egyptian artefacts from Naqada I-III and the Archaic Period in the Mimara Museum in Zagreb2013 •
Journal of insect science
Male Courtship Behavior of the South American Fruit Fly,<i>Anastrepha fraterculus</i>, from an Argentinean Laboratory Strain2011 •
Verbos para consignas en foros y actividades digitales
VERBOS PARA CONSIGNASJournal of Hydrology
Hydrological explanation of the flow in karst: example of the Crnojevića spring1993 •
American Journal of Physical Anthropology
Comment on the evolution of claw‐like nails in callitrichids (marmosets/tamarins)1986 •
Journal of Biomedical Materials Research Part B: Applied Biomaterials
Comparing the release of erythromycin and vancomycin from calcium polyphosphate hydrogel using different drug loading methods2019 •
E-Jurnal Matematika
Analisis Derajat Kesehatan Masyarakat Provinsi Bali Dengan Menggunakan Metode Generalized Structured Component Analysis (Gsca)2013 •
Composite Structures
Modeling of viscoelastic sandwich beams using solid–shell finite elements2015 •