Analysis and Simulation of Different Types of Power Amplifiers Used in Electromagnetic Levitation System

Sukanta Debnath, Pabitra Kumar Biswas, Upama Das


The objective of this paper is time and frequency response analysis of single quadrant and two-quadrant power amplifiers by
using MATLAB SIMULINK, PSPICE and PSIM based software used in the electromagnetic levitation system. The power amplifier
plays a key role in controlling the electromagnetic levitation system, controlling the current as well as the force between
electromagnet and rail. Here the power amplifier is used to convert a fixed DC voltage to an adjustable DC output voltage.
Different kinds of power amplifiers have been proposed for the electromagnetic levitation system. In this paper, only buck and
asymmetrical converters are simulated in the simulation software. The exciting current of the electromagnet is controlled by
the power amplifier, which controls the air gap and force between actuator and rail in a closed loop manner. PSPICE is an
analog and digital circuit simulation software. PSIM is a general-purpose analog and digital electronic circuit simulator. It is
also used for simulation and design software for power electronics, motor drives, and dynamic system simulation. SIMULINK
is the graphic user interface software from MATLAB which helped us prepare the model of the various power systems, power
electronics and control system.


Electromagnetic Levitation system, Buck converter, Asymmetrical converter,Half Bridge Converter, Full Bridge converter, PSPICE, PSIM, MATLAB SIMULINK,

Full Text:



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