Performance and Dynamic Analysis of Single Switch AC-DC Buck-Boost Buck Converter
Nagi Reddy. B1, A. Pandian2, O. Chandra Sekhar3, M. Ramamoorty4
1Nagi Reddy B, Department of EEE, Koneru Lakshmaiah Education Foundation, Guntur (A.P), India.
2A.Pandian, Department of EEE, Koneru Lakshmaiah Education Foundation, Guntur (A.P), India.
3O.Chandra Sekhar, Department of EEE, NIT, Srinagar (Jammu and Kashmir), India.
4M.Ramamoorty, Former Chancellor, Koneru Lakshmaiah Education Foundation, Guntur (A.P), India.
Manuscript received on 05 February 2019 | Revised Manuscript received on 13 February 2019 | Manuscript published on 28 February 2019 | PP: 307-313 | Volume-8 Issue-4, February 2019 | Retrieval Number: D2765028419/19©BEIESP
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Abstract: Dynamic analysis of proposed single switch ac-dc buck-boost buck converter is presented in this paper. The proposed converter is an integrated converter contains two inductors, one is at input side and other one is at output side. To achieve unity power factor at input terminals, the input inductor is designed for discontinuous mode (DCM). This condition will eliminate extra control technique for power factor correction (PFC). The output side inductor is operated in DCM to reduce the bus capacitor voltage, thereby reducing the capacitance size. A PI controller is designed to regulate the pulses for the converter. The proposed converter is designed in MATLAB software for 60V output voltage. The analysis has been done for three different cases (variable frequency, variable input and variable load) to verify the converter performance.
Keyword: Single Switch, Ac-Dc Converter, Buck-Boost, Power Factor Correction (PFC), Dynamic Analysis.
Scope of the Article: Network Performance; Protocols; Sensors