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.

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

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