scholarly journals Pulse-density modulation control of chemical oscillation far from equilibrium in a droplet open-reactor system

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Haruka Sugiura ◽  
Manami Ito ◽  
Tomoya Okuaki ◽  
Yoshihito Mori ◽  
Hiroyuki Kitahata ◽  
...  
Keyword(s):  
Reactor System ◽  
Chemical Oscillation ◽  
Pulse Density ◽  
Density Modulation ◽  
Far From Equilibrium ◽  
Pulse Density Modulation ◽  
Modulation Control

Pulse density modulation control-based multi-load handling three leg inverter for cooking applications

Circuit World ◽  
2022 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Pradeep Vishnuram ◽  
Ramachandiran Gunabalan
Keyword(s):  
Modulation Frequency ◽  
Experimental Results ◽  
Control Technique ◽  
Switching Frequency ◽  
Content Type ◽  
Pulse Density ◽  
Density Modulation ◽  
Pulse Density Modulation ◽  
Modulation Control ◽  
Load Handling

Purpose Induction heating applications aided by power electronic control have become very attractive in the recent past. For cooking applications, power electronics circuits are very suitable to feed power to multi loads with an appropriate control technique. The purpose of this paper is to develop a three leg inverter to feed power to three loads simultaneously and independently. Design/methodology/approach Pulse density modulation control technique is used to control the output power independently with constant switching frequency. Findings Multi-load handling converter with independent power control is achieved with reduced number of switching devices (two switches/per load) with simple control strategy. Originality/value The proposed system is simulated in MATLAB/Simulink, and the thermal analysis is carried out in COMSOL multi-physics software. The hardware realisation is performed for a 1 kW prototype with 20 kHz switching frequency and 10 kHz pulse density modulation frequency. PIC16F877A microcontroller is used to validate the experimental results for various values of control signals (DPDM). The simulation and experimental results are in good agreement and validates the developed system.

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