International Journal of Applied Power Engineering (IJAPE) Vol. 13, No. 1, March 2024, pp. 20~29 ISSN: 2252-8792, DOI: 10.11591/ijape.v13.i1.pp20-29  20 Journal homepage: http://ijape.iaescore.com Analysis of single switch step up DC-DC converter with switched inductor-switched capacitor cells for PV system J. Gnanavadivel, M. Kalarathi, K. Prakash Department of Electrical and Electronics Engineering, Mepco Schlenk Engineering College, Sivakasi, India Article Info ABSTRACT Article history: Received Feb 6, 2023 Revised May 19, 2023 Accepted May 25, 2023 The presented work exhibits high gain and increased efficiency for DC-DC converter. Additionally, this topology significantly improves the voltage conversion ratio when compared with other DC-DC converters reported recently. The non-existence of high frequency transformer ensures compactness and low cost and henceforth, it is apt for clean energy applications. The analysis of the high gain converter in steady state is carried out in continuous conduction mode (CCM). Initially, the proposed converter performance is analyzed using MATLAB/Simulink platform and prototype of the same with a power rating of 200 V, 100 W is built and tested. The reliability and robustness of the converter is perceived from the experimental results and peak efficiency achieved is around 93%. Keywords: Boost converter DC transmission DC-DC PI controller Power conversion SL-SC This is an open access article under the CC BY-SA license. Corresponding Author: J. Gnanavadivel Department of Electrical and Electronics Engineering, Mepco Schlenk Engineering College Mepco Nagar, Sivakasi, Tamil Nadu 626005, India Email: gvadivel@mepcoeng.ac.in 1. INTRODUCTION The importance of renewable resources in distribution system increases rapidly due to the diminution of conventional energy resources. Renewable sources such as photo voltaic (PV) cells, fuel cells and provide low DC voltage. DC microgrid applications require a DC-DC converter with high gain to transform this low DC voltage into high value. There are a number of literature references that describe high gain DC-DC converters, both isolated and non-isolated. A converter with voltage lift technique is presented in [1]. It is suggested to attain high voltage gain by a hybrid approach where both switches are switched on simultaneously. Though this topology offers more benefits its application restricted only for low voltage. A novel high gain converter that involves switched inductor (SL) for boosting applications is proposed in [2]. By utilizing fewer components and the two switches in the circuit topology renders high voltage gain with small value of duty cycle but imparts high voltage stress. The concept of the switched capacitor (SC) is introduced in [3]. The primary merits of the SC converter are the continuous input current, high voltage gain with minimal voltage and current stress and, absence of high frequency-transformer. More number of boosting cells is needed to get high gain thereby, circuit becomes bulkier. A converter with switched capacitance technique is presented in [4]. It is possible for the converter to achieve a high gain in voltage with less duty ratio. Though one switch is adopted, the voltage gain is comparatively low. A switched inductor-capacitor divided network converter attains high gain with a single switch [5]. There is a low voltage across the switches compared to output voltage but more number of diodes contributes more conduction losses. DC-DC switch-mode boost converters operate with switched capacitor voltage multipliers [6], achieving four times higher voltage gains, with only half the voltage stress on the transistor and diodes. A