Design, Modelling and Implementation of Interleaved Boost DC-DC Converter

Authors : Divya M, Guruswamy K P.

Volume/Issue : Volume 3 - 2018, Issue 2 - February

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Multiphase converter topologies for use in high performance and low voltage applications have received increasing interest in recent years. The project report compares a 2-phase interleaved boost converter with the conventional Boost converter. In this research, a 2-phase structure with interleaved control is studied which is said to reduce the input current ripples, the output voltage ripples, and the size of passive components with high efficiency compared with the conventional topology. Furthermore, a state space averaging technique is performed there by steady state and small signal models are derived for these dc/dc converters. A closed loop control is achieved by designing a digital PID controller to achieve the proper regulator for the converters. The design and investigation of PID controller is made for the parameters and designed values of the DC-DC converter using MATLAB Simulink. The hardware implementation of the conventional boost converter and 2-phase interleaved boost converter is performed using Arduino Microcontroller and performance of the two converters is studied. The Simulation and experimental results thus obtained concludes that 2-phase IBC satisfies the objectives of reducing the size of passive elements and reducing the input current ripple.

Keywords : Interleaved boost DC-DC converter (two phase IBC), continuous conduction mode (CCM), Transfer function (TF), Proportional-Integral-Derivative (PID) Pulse Width Modulation (PWM), Small Signal Model (SSM), ARDUINO micro controller, SISO tool.


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