Intelligent hybrid technique for cascaded multilevel inverter based three phase grid-tie hybrid power system: a WPSNN technique

2021 ◽  
Author(s):  
S. Satish Kumar ◽  
M. Sasi Kumar
Keyword(s):  
Power System ◽  
Multilevel Inverter ◽  
Hybrid Technique ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
System A ◽  
Three Phase ◽  
Cascaded Multilevel Inverter

Three Input DC-DC Boost Converter for Hybrid Power System with Multilevel Inverter

2013 ◽  
Vol 768 ◽  
pp. 398-403
Author(s):  
Jagriti Narayan ◽  
R. Johnson Uthayakumar
Keyword(s):  
Fuel Cell ◽  
Power System ◽  
Alternative Energy ◽  
Input Power ◽  
Boost Converter ◽  
Multilevel Inverter ◽  
Power Sources ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Power Switches

A new three input DC-DC boost converter fed symmetrical multilevel inverter is proposed. The converter interfaces two unidirectional input power ports and a bidirectional port to battery in a unified structure. This converter uses hybrid alternative energy source such as Photo Voltaic (PV) source, Fuel Cell (FC) source, and Battery. Supplying the output load, charging or discharging the battery can be made by the PV and the FC power sources individually or simultaneously. The proposed structure utilizes only four power switches that are independently controlled with four different duty ratios. Proposed inverter uses two cells for five level output. Boost converter provided hybrid sources to multilevel inverter. Here we promote inverter for attain a pure sinusoidal harmonics free ac application.Key Words-Photovoltaic/fuel cell (PV/FC)/battery hybrid power system, three-input dcdc boost converter.

scholarly journals Analysis of a Supercapacitor/Battery Hybrid Power System for a Bulk Carrier

2019 ◽  
Vol 9 (8) ◽  
pp. 1547 ◽  
Author(s):  
Kyunghwa Kim ◽  
Juwan An ◽  
Kido Park ◽  
Gilltae Roh ◽  
Kangwoo Chun
Keyword(s):  
Power System ◽  
Lithium Ion ◽  
Handling Time ◽  
Bulk Carrier ◽  
Hybrid Power System ◽  
Cargo Handling ◽  
Hybrid Power ◽  
System A ◽  
Bulk Carriers ◽  
Reduce Emissions

Concerns about harmful exhaust emissions from ships have been an issue. Specifically, the emissions at ports are the most serious. This paper introduces a hybrid power system that combines conventional diesel generators with two different energy storage systems (ESSs) (lithium-ion batteries (LIB) and supercapacitors (SC)) focused on port operations of ships. To verify the proposed system, a bulk carrier with four deck cranes is selected as a target ship, and each size (capacity) of LIB and SC is determined based on assumed power demands. The determined sizes are proven to be sufficient for a target ship through simulation results. Lastly, the proposed system is compared to a conventional one in terms of the environmental and economic aspects. The results show that the proposed system can reduce emissions (CO2, SOX, and NOx) substantially and has a short payback period, particularly for ships that have a long cargo handling time or visit many ports with a short-term sailing time. Therefore, the proposed system could be an eco-friendly and economical solution for bulk carriers for emission problems at ports.

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