Compact quadratic boost switched-capacitor inverter
Document Type
Article
Publication Date
7-1-2022
Abstract
This article presents a new topology for a single-stage nine-level (9L) switched-capacitor inverter. The structure of the proposed topology is not only simple but also compact. The proposed topology is developed with self-voltage balancing and a low number of power components. The output voltage (v(o)) gain is four times higher than the input voltage (v(in)). Each mode of operation is discussed with a detailed current path. The conventional sinusoidal pulsewidth modulation technique is used to generate the gate pulses. Next, the experimental results are obtained from a 1 kW prototype setup. The proposed topology is tested under different scenarios such as load change, input voltage changes, and modulation variations. Both simulation and experimental results have good agreement in terms of efficiency. Finally, a detailed comparative study is performed with other recent 9L inverters to prove the merits of the proposed topology.
Keywords
Topology, Voltage, Inverters, Capacitors, Stress, Switches, Renewable energy sources, Boost inverter, High-gain converter, Multilevel inverter, Self-voltage balancing, Switched capacitor (SC)
Divisions
fac_eng
Funders
Renewable Energy Laboratory (REL), College of Engineering, Prince Sultan University, Riyadh, Saudi Arabia
Publication Title
IEEE Transactions on Industry Applications
Volume
58
Issue
4
Publisher
Institute of Electrical and Electronics Engineers
Publisher Location
445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA