I. J. of Electrical & Electronics Research
Research Article | 
Modelling and Analysis of Non-ideal Two stage Lift Luo Converter with Positive Output
Author(s): T.S. Saravanan1, K. A. Indu Sailaja2, P. Marish Kumar3, G. Merlin Suba4 and K. Palanivel Rajan5
Published In : International Journal of Electrical and Electronics Research (IJEER) Volume 10, Issue 4
Publisher : FOREX Publication
Published : 15 December 2022
e-ISSN : 2347-470X
Page(s) : 1115-1120
Abstract
High power applications such as motor drive control requires a higher voltage level of the DC-DC power converter fed from low-level DC input sources. For increasing the output voltage, a gain of the converter is increased using the pump circuit consisting of inductors and capacitors connected in different forms. The effect of adding the energy storage elements includes the parasitic resistances in the converter and affects the performance. This research paper is intended to model and investigate the effects of non-idealities in two stages cascaded lift circuit type Luo converter with positive output voltage. To analyze the non-ideal effects, state-space averaging (SSA) technique is used to model the converter. The converter is modeled in the presence of equivalent series resistance (ESR) of inductances and capacitances to study the effect of parasitic resistances on the converter performances. The transient and frequency response of the converter is plotted using the MATLAB simulation and observed that the ringing in the transient response is damped and oscillation at corner frequency is mitigated. The effect of ESR reduces the voltage gain and improves the stability of the system by increasing the gain and phase margin. Step response and bode plot of the converter is plotted at ideal and non- ideal condition.
Keywords: Relift Luo Converter, state-space averaging, transfer function model, phase margin, gain margin.
T.S. Saravanan*, Assistant Professor, Department of EEE, Rajalakshmi Engineering College, Thandalam, chennai, Tamil Nadu, India; Email: saravanan.ts@rajalakshmi.edu.in
K. A. Indu Sailaja, Assistant Professor, Department of EEE, Easwari Engineering College, Ramapuram, Chennai, Tamil Nadu, India; Email: sailaja.indu@gmail.com
P. Marish Kumar, Associate Professor, Department of EEE, Easwari Engineering College, Ramapuram, Chennai, Tamil Nadu, India; Email: marishkumar.p@eec.srmrmp.edu.in
G. Merlin Suba, Associate Professor, Department of Electrical and Electronics Engineering,Panimalar Engineering College Chennai, Tamil Nadu, India; Email: merlinsubag@gmail.com
K. Palanivel Rajan, Assistant Professor, Department of ECE, PSNA College of Engineering and Technology, Kothandaraman Nagar, Tamil Nadu, India; Email: kpvrajaneee@psnacet.edu.in
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T.S. Saravanan, K. A. Indu Sailaja, P. Marish Kumar, G. Merlin Suba and K. Palanivel Rajan (2022), Modelling and Analysis of Non-ideal Two stage Lift Luo Converter with Positive Output. IJEER 10(4), 1115-1120. DOI: 10.37391/IJEER.100457.