R. K. Yadhunandana, M. Ramya, N. Harshitha, S. Bhaskar, D. Seshachalam, D. Ambika
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Energy efficiency is of prime focus in the design and development of any power conversion system. The value of power factor at the input, affects the efficiency. It is a known fact that most common non-linear loads (such as a rectifier) result in low power factor operation at the ac (alternating current) input due to the presence of harmonics. Low power factor causes power losses, equipment failure, and higher operating costs. This paper presents a conceptual design for improving the power factor by active filtering using a boost converter connected between the rectifier and the load. Digital current mode control of operation of the boost converter is designed implemented and experimentally tested using a hardware set-up with Piccolo F28027 micro controller Simulations are carried out in MATLAB/Simulink. The control strategy is implemented on the Micro controller through the MATLAB IDE environment for code generation. The simulation results are verified with that obtained experimentally.
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