scholarly journals A closed-loop power controller model of series-resonant-inverter-fitted induction heating system

2016 ◽  
Vol 65 (4) ◽  
pp. 827-841
Author(s):  
Palash Pal ◽  
Debabrata Roy ◽  
Avik Datta ◽  
Pradip K. Sadhu ◽  
Atanu Banerjee
Keyword(s):  
Induction Heating ◽  
High Frequency ◽  
Closed Loop ◽  
Heating System ◽  
Real Power ◽  
Resonant Inverter ◽  
Series Resonant ◽  
Series Resonant Inverter ◽  
Induction Heating System ◽  
Frequency Inverter

Abstract This paper presents a mathematical model of a power controller for a high-frequency induction heating system based on a modified half-bridge series resonant inverter. The output real power is precise over the heating coil, and this real power is processed as a feedback signal that contends a closed-loop topology with a proportional-integral-derivative controller. This technique enables both control of the closed-loop power and determination of the stability of the high-frequency inverter. Unlike the topologies of existing power controllers, the proposed topology enables direct control of the real power of the high-frequency inverter.

Improved Time Responses of PI & FL Controlled SEPIC Converter based Series Resonant Inverter fed Induction Heating System

2018 ◽  
Vol 9 (1) ◽  
pp. 305
Author(s):  
Muthu Periyasamy ◽  
Chandrahasan Umayal
Keyword(s):  
Induction Heating ◽  
Power Factor ◽  
Closed Loop ◽  
Fuzzy Logic Controller ◽  
Heating System ◽  
Unity Power Factor ◽  
Resonant Inverter ◽  
Series Resonant ◽  
Series Resonant Inverter ◽  
Induction Heating System

This work deals with the Power Factor Corrected Single-Ended Primary Inductor Converter (PFC-SEPIC) based voltage fed closed loop full bridge series resonant induction heating system for household induction heating applications. The output voltage of the front end PFC-SEPIC converter fed series resonant inverter governs the controllers, which may be PI controller or Fuzzy Logic Controller (FLC). The analysis and comparison of time responses are presented in this paper. The PFC-SEPIC converter is used to improve the output power and the THD of source side current are compared for PI and FLC controllers. PFC-SEPIC converter maintains improved current and voltage at unity power factor through the input mains. The SEPIC converter based Voltage Fed Full Bridge Series Resonant Inverter (VFFBSRI) converts the voltage at a frequency of 10 kHz to a level suitable for household induction heating. A 1 kW SEPIC converter based VFFBSRI with RLC load is designed and simulated using MATLAB/ Simulink and hardware is fabricated.

High Power Density Multi-Mosfet-Based Series Resonant Inverter for Induction Heating Applications

2016 ◽  
Vol 7 (1) ◽  
pp. 107 ◽  
Author(s):  
M. Saravanan ◽  
A. Ramesh Babu
Keyword(s):  
Conversion Efficiency ◽  
Induction Heating ◽  
High Frequency ◽  
Low Voltage ◽  
Resonant Inverter ◽  
Power Simulation ◽  
Series Resonant ◽  
Series Resonant Inverter ◽  
State Resistance ◽  
Practical Constraints

Induction heating application uses uniquely high frequency series resonant inverter for achieving high conversion efficiency. The proposed work focus on improving the practical constraints in requiring the cooling arrangements necessary for switching devices used in resonant inverter due to higher switching and conduction losses. By introducing high frequency Multi- MOSFET based series resonant inverter for the application of induction heating with the following merits such as minimum switching and conduction losses using low voltage grade  of automotive MOSFET’s and higher conversion efficiency with high frequency operation. By adding series combination of low voltage ratedMulti MOSFET switches, temperature variation according to the on-state resistance issues can be avoided by sharing the voltage across the switches depends on number switches connected in the bridge circuit without comprising existing system performance parameter such as THD, power factor, output power. Simulation results also presents to verify that the proposed system achieve higher converter efficiency.

scholarly journals Feasible Evaluation of Shunt Active Filter for Harmonics Mitigation in Induction Heating System

2021 ◽  
Vol 2 (3) ◽  
pp. 235-245
Author(s):  
Rahul Raman ◽  
Subrata Kumar Dutta ◽  
Priya Sarmah ◽  
Mrigakshi Das ◽  
Amarjit Saikia ◽  
...  
Keyword(s):  
Induction Heating ◽  
Electromagnetic Interference ◽  
High Frequency ◽  
Heating System ◽  
Active Filter ◽  
Input Current ◽  
Shunt Active Filter ◽  
Resonant Inverter ◽  
Harmonic Currents ◽  
Induction Heating System

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 of SAF as an imperative part of the IH system. Results obtained by simulations show that the proposed approach is more effective than the reviewed approaches on compensating the harmonic currents and thus, the filtering action of SAF is able to achieve the THD of input current within the limit specified by the IEEE-519 standard. Doi: 10.28991/HIJ-2021-02-03-08 Full Text: PDF

scholarly journals Development of Series Resonant Inverters for Induction Heating Applications

2018 ◽  
Vol 3 (12) ◽  
pp. 36-39
Author(s):  
Khairy Sayed ◽  
Farag Abo-Elyousr ◽  
Farid N. Abdelbar ◽  
Heba El-zohri
Keyword(s):  
Induction Heating ◽  
High Frequency ◽  
Cost Effective ◽  
Performance Comparison ◽  
Resonant Inverter ◽  
Series Resonance ◽  
Pulse Density ◽  
Series Resonant ◽  
In Series ◽  
Series Resonant Inverter

This paper proposes a cost-effective series resonant inverter employed in applications of induction heating. The proposed inverter operates with high-frequency pulse-density modulation strategy for soft-switching. The high-frequency operation (20 kHz – 100 kHz) of this inverter results in a nearly sinusoidal output that is suitable for relatively fixed output applications such as induction heating. The series resonance circuit comprises an inductor and a capacitor that are in series with the load. The small size of resonating components is due to the high-frequency switching operation. The practical effectiveness of induction heating power supply is substantially proved by implementing a prototype series resonant inverter. To analyze the performance, comparison between the simulation and experimental results is done by using PSIM program

scholarly journals Behaviour of a High Frequency Parallel Quasi Resonant Inverter Fitted Induction Heater with Different Switching Frequencies

2016 ◽  
Vol 6 (2) ◽  
pp. 447
Author(s):  
Avijit Chakraborty ◽  
Pradip Kumar Sadhu ◽  
Kallol Bhaumik ◽  
Palash Pal ◽  
Nitai Pal
Keyword(s):  
Induction Heating ◽  
High Frequency ◽  
Heating System ◽  
Switching Frequency ◽  
Tank Circuit ◽  
Bipolar Junction Transistor ◽  
Induction Heater ◽  
Resonant Inverter ◽  
Junction Transistor ◽  
Induction Heating System

<p>This paper investigates the behavior of a high frequency parallel quasiresonant<br />inverter 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 tank circuit of the resonant inverter. The proposed scheme is analyzed using Power System<br />Simulator (PSIM) environment.</p>

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