TY - JOUR
T1 - A Novel Multilevel Inverter and Its Study in PV System for Power Fluctuation Compensation Using DC Superconducting Cable
AU - Rehman, Haroon
AU - Islam, Shirazul
AU - Higashikawa, Kohei
AU - Iqbal, Atif
AU - Ben-Brahim, Lazhar
AU - Muyeen, S. M.
N1 - Publisher Copyright:
© 2013 IEEE.
PY - 2025
Y1 - 2025
N2 - A novel seven-level switched-capacitor inverter (7L-SCI) topology has been proposed in this article, which is being applied to a grid-connected photovoltaic (PV) system with dc superconducting cable. The proposed topology has the additional benefit of inherent fault tolerance (FT) to the switch faults. A comparative analysis is provided between the proposed topology and different seven-level MLI topologies. Additionally, dc superconducting cable is utilized for its energy storage properties to smooth out fluctuations in PV power. A superconducting cable can conduct high-speed charges and discharges, allowing the cable to deal with output PV power fluctuations that are difficult to control using conventional technologies. The application of the superconducting cable reduces the spikes in the inverter’s source current which is generally a drawback of using a switched capacitor multilevel inverter (MLI). Through the use of a laboratory prototype, the performance of the presented topology is examined. Finally, simulation results of MATLAB/Simulink are presented to show the grid-connected system’s performance with and without superconducting cables.
AB - A novel seven-level switched-capacitor inverter (7L-SCI) topology has been proposed in this article, which is being applied to a grid-connected photovoltaic (PV) system with dc superconducting cable. The proposed topology has the additional benefit of inherent fault tolerance (FT) to the switch faults. A comparative analysis is provided between the proposed topology and different seven-level MLI topologies. Additionally, dc superconducting cable is utilized for its energy storage properties to smooth out fluctuations in PV power. A superconducting cable can conduct high-speed charges and discharges, allowing the cable to deal with output PV power fluctuations that are difficult to control using conventional technologies. The application of the superconducting cable reduces the spikes in the inverter’s source current which is generally a drawback of using a switched capacitor multilevel inverter (MLI). Through the use of a laboratory prototype, the performance of the presented topology is examined. Finally, simulation results of MATLAB/Simulink are presented to show the grid-connected system’s performance with and without superconducting cables.
KW - Energy storage
KW - fault-tolerant operation (FTO)
KW - multilevel inverters (MLIs)
KW - photovoltaic (PV) system
KW - superconducting cable
UR - https://www.scopus.com/pages/publications/105007601944
UR - https://www.scopus.com/inward/citedby.url?scp=105007601944&partnerID=8YFLogxK
U2 - 10.1109/JESTPE.2025.3577502
DO - 10.1109/JESTPE.2025.3577502
M3 - Article
AN - SCOPUS:105007601944
SN - 2168-6777
VL - 13
SP - 5554
EP - 5562
JO - IEEE Journal of Emerging and Selected Topics in Power Electronics
JF - IEEE Journal of Emerging and Selected Topics in Power Electronics
IS - 5
ER -
