A Novel Power Control Technique for Series Resonant Inverter-Fed Induction Heating System with Fuzzy-Aided Digital Pulse Density Modulation Scheme

2017 ◽  
Vol 20 (4) ◽  
pp. 1115-1129 ◽  
Author(s):  
Pradeep Vishnuram ◽  
Gunabalan Ramachandiran ◽  
Sridhar Ramasamy
Keyword(s):  
Heating System ◽  
Control Technique ◽  
Modulation Scheme ◽  
Resonant Inverter ◽  
Pulse Density ◽  
Digital Pulse ◽  
Series Resonant ◽  
Density Modulation ◽  
Series Resonant Inverter ◽  
Induction Heating System

scholarly journals Pulse Density Modulation Based Series Resonant Inverter Fed Induction Heater System

2018 ◽  
Vol 9 (2) ◽  
pp. 690
Author(s):  
S. Jaanaa Rubavathy ◽  
P. Murugesan
Keyword(s):  
Induction Heating ◽  
Output Voltage ◽  
Control Strategies ◽  
Resonant Inverter ◽  
Pulse Density ◽  
Series Resonant ◽  
Density Modulation ◽  
Simulation Results ◽  
Pulse Density Modulation ◽  
Series Resonant Inverter

This paper deals with implementation of a multi-output Series Resonant Inverter(SRI) for induction heating applications, which uses pulse density modulation(PDM) control for full bridge Series resonant inverters for output voltage and power control. It ensures better efficiency performances than conventional control strategies. The proposed converter can be considered as a two output extension of a full bridge inverter. This full bridge inverter can control the two outputs, simultaneously and independently, up to their rated powers, which reduces the usage of number of components as compared with conventional method. It also ensures higher utilization of switches used for its operation. A two output full bridge series resonant inverter is simulated and implemented. The Experimental results are compared with the simulation results.

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.

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.

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