Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/74912
Title: A seven level switched capacitor multilevel inverter with asymmetric input sources for microgrids
Authors: Raman, SR 
Cheng, KWE 
Hu, J 
Keywords: H-bridge
High frequency AC power distribution
High frequency DC/AC Inverter
Multilevel inverter
Selective harmonic elimination
Switched-capacitor
Total harmonic distortion
Issue Date: 2017
Publisher: Institute of Electrical and Electronics Engineers Inc.
Source: 2017 20th International Conference on Electrical Machines and Systems, ICEMS 2017, 2017, 8055999 How to cite?
Abstract: This paper presents a seven level inverter utilizing switched-capacitor technique. Proposed topology employs two asymmetric DC voltage sources as input and generates a multilevel staircase output. The structure includes a front-end switched-capacitor based DC-DC converter cascaded by a back-end H-bridge inverter. The frontend SC DC-DC converter feeds three DC voltage levels to the H-bridge inverter which produces the corresponding bipolar levels. Such inverters have the potential to be employed in AC microgrids where there are several asymmetric DC sources available. The inverter naturally solves the problem of capacitor voltage balancing as the capacitor is charged to a constant value twice every cycle. This topology also eliminates the need for series connection of individual voltage sources which require voltage balancing algorithms. Simulation and experiment results for the proposed inverter are presented.
Description: 20th International Conference on Electrical Machines and Systems, ICEMS 2017, Sydney, Australia, 11-14 August, 2017
URI: http://hdl.handle.net/10397/74912
ISBN: 9781538632468
DOI: 10.1109/ICEMS.2017.8055999
Appears in Collections:Conference Paper

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