Real time simulation of SEPIC converter using miniature full spectrum simulator

Abstract

SEPIC (Single Ended Primary Inductance Converter) is a dc-dc converter which can provide an output voltage either greater than or less than the input voltage. Basically it is similar to a buck-boost converter. The output voltage polarity of a SEPIC is non-inverted whereas the output voltage polarity is inverted in a buck-boost converter. SEPIC converters are widely used in battery operated equipment, power supplies for laptops and computers, power factor correction etc. Rapid development of computing technologies lead to great use of simulation tools for the planning and design of electrical systems. Nowadays complex electrical systems can be simulated with less time. There are mainly two types of simulations. One is offline simulation and other is real time simulation. In real time simulation both physical time and simulation time are same. Real time simulators are extensively used in many engineering fields. Statistical power grid protection tests, aircraft design and simulation, motor drive controller design methods and space robot integration are a few examples of real-time simulator technology applications. In this paper an average model of the SEPIC is derived at first. Then an offline simulation and real time simulation of SEPIC using miniature full spectrum simulator is explained.