@article{leedy_aganah_abdelraziq_booth_2023, title={A Single-Phase Five-Level Inverter Topology for Distributed Sources}, DOI={10.1109/ONCON60463.2023.10430607}, abstractNote={A five-level single-phase inverter topology suitable for distributed power sources is experimentally verified and compared to a conventional inverter topology. The basic unit of the inverter comprises a voltage-level generator and a classical H-bridge inverter. The voltage-level generator generates positive voltage levels while the H-bridge is used to generate the zero and negative voltage levels. The utilization of the phase opposition disposition (POD) and the alternative phase opposition disposition (APOD) PWM techniques on the five-level single-phase inverter is also presented. Suitable inverter switching gate signals are derived to generate the desired five-level output waveforms. The five-level operation presented in this paper can be extended to an n-level inverter. The functionality of the proposed topology is verified via MATLAB/Simulink simulations and tested experimentally using DC power supplies as the DC voltage inputs. Finally, the circuit was also tested using photovoltaic (PV) modules as the DC voltage inputs. The proposed topology produced lower THD values as compared to the conventional topology discussed.}, journal={2023 IEEE 2ND INDUSTRIAL ELECTRONICS SOCIETY ANNUAL ON-LINE CONFERENCE, ONCON}, author={Leedy, Aleck W. and Aganah, Kennedy A. and Abdelraziq, Muhammad and Booth, Kristen}, year={2023} }
 @article{akhmetov_abdelraziq_pantic_2023, title={Low Conducted-EMI Single-Phase Boost PFC with Sliding Frequency Modulation}, ISSN={["1048-2334"]}, DOI={10.1109/APEC43580.2023.10131650}, abstractNote={A boost Power Factor Correction (PFC) circuit is connected between the AC grid and converters to meet Electromagnetic Interference (EMI) and Total Harmonic Distortion (THD) standards. An EMI filter should be utilized at the input of the PFC to attenuate high-frequency noise injected into the grid. This article discusses the low-conducted EM emission boost PFC with Sliding Frequency Modulation (SFM) proposed by Power Integrations. The proposed boost PFC is compared with a conventional boost PFC operated using Constant Frequency Modulation (CFM) at 120 kHz. Both PFCs are rated for the same nominal power (i.e., 300 W) and output voltage (i.e., 383 V). An analytical loss model is also developed to compare the performance of the SFM and CFM PFCs. The analytical findings are verified by means of simulations and experiments.}, journal={2023 IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, APEC}, author={Akhmetov, Zhansen and Abdelraziq, Muhammad and Pantic, Zeljko}, year={2023}, pages={1784–1789} }
 @article{pratik_abdelraziq_ahluwalia_akhmetov_chenevert_pantic_2021, title={Design of a Dual-Loop Controller with Two Voltage- Dependent Current Compensators for an LLC-Based Charger}, ISSN={["1093-5142"]}, DOI={10.1109/COMPEL52922.2021.9645959}, abstractNote={A two-stage charger (PFC+LLC) is developed for Power Mobility Device (PMD) charging applications (i.e., power wheelchairs). The LLC topology is selected due to its ability to maintain ZVS operation over a wide range of load variations. This paper discusses the challenges of designing a dual-loop controller for an LLC-based charger with a wide operation region. It proposes modifying the inner current loop to maintain stable operation over a wide input and output range—the proposed internal loop control switches intelligently between two current controllers based on the output voltage level. A 300-W prototype is designed and tested with a resistive load. Moreover, simulation and experimental results are compared to validate the robustness and stability of the proposed controller.}, journal={2021 IEEE 22ND WORKSHOP ON CONTROL AND MODELLING OF POWER ELECTRONICS (COMPEL)}, author={Pratik, Ujjwal and Abdelraziq, Muhammad and Ahluwalia, Urvi and Akhmetov, Zhansen and Chenevert, Gabriel and Pantic, Zeljko}, year={2021} }