scholarly journals Bidirectional DC/DC Power Converter for Hybrid Yacht Propulsion System

2018 ◽  
Vol 2 (Special edition 2) ◽  
pp. 133-142
Author(s):  
Saša Sladić ◽  
Damir Kolić ◽  
Marko Šuljić
Keyword(s):  
Low Power ◽  
Critical Points ◽  
High Power ◽  
Thermal Imaging ◽  
Cost Effective ◽  
Power Converter ◽  
Propulsion System ◽  
Typical Application ◽  
Electric Drives ◽  
Dc Power

Typical application of bidirectional DC/DC power converter exists in hybrid cars. Recently, a similar approach has been applied in hybrid propelled ships as well. In this paper, a novel low power bidirectional DC/DC power converter of standard Buck/Boost topology has ben designed in order to explore possibilities of the high power design in maritime applications. In order to discover critical points of a design, thermal imaging has been investigated. The results clearly indicate that the proposed solution is more cost effective than a typical standard bidirectional DC/DC power converter. Likewise, the improvement in maneuvering of the propelled vessel system with two and more electric drives has been investigated and compared to a classical diesel, single engine propulsion system.

scholarly journals Design of Piezoelectric Energy Harvester and Power Conditioning

2020 ◽  
pp. 519-526
Author(s):  
D. Meena ◽  
P. Jegan ◽  
R. Puviyarasan ◽  
R. Sathish
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Power Converter ◽  
Strain Sensing ◽  
Ultra Low Power ◽  
Piezoelectric Energy ◽  
Dc Power ◽  
Novel Approach ◽  
Switching Unit ◽  
Self Powered

The existing system presents a novel approach called simultaneous wireless strain sensing and energy harvesting from multiple piezo-patches, which is intended for self-powered Structural Health Monitoring applications. The Energy Harvesting subsystem is mainly the self-powered extended synchronous electric charge extraction interface based on double cross-coupled rectifying structure and a single fly back transformer, which is able to harvest energy from multiple piezo-patches. In this proposed work, the DC power is generated using piezoelectric and MEMS. Then the Produced by DC energy is given to Ultra Low Power Converter Using with Micro controller then Ultra capacitor used to Highly Discharging in the DC power bank. The outputs of transducers are also given to micro controller. The obtained energy is boosted up using Booster Ultra Low Power Converter. The output of the Ultralow Power Converter is given to the Relay for the switching unit to store energy in a DC Power Bank and the stored energy is inverted to AC voltage

scholarly journals The Impact of DC-power Layout on Stray Inductance of Bridge Arm in Power Converters

2015 ◽  
Vol 9 (1) ◽  
pp. 1-6
Author(s):  
Yi-feng Zhu ◽  
Hai-jun Tao ◽  
Qiong-xuan Ge
Keyword(s):  
High Power ◽  
Power Converters ◽  
Power Converter ◽  
Experimental Results ◽  
Main Concern ◽  
Power Devices ◽  
Dc Power ◽  
Converter Design ◽  
The Impact

In high power converter design, low-inductance busbar connecting DC capacitors and power devices is the main concern to improve the quality of the whole power electronics system. There are several facts which affect the stray inductance of bridge arm. This paper mainly analyzes the influence of DC-power layout on the stray inductance taking a subway traction converter as example. The Psim9.0 software was used to calculate the stray inductance. The conclusion is that DC-power connection should be put different side from DC capacitance because lower stray inductance can be obtained than that of the same side. The simulation and experimental results are given to illustrate the effectiveness.

Impact of DC-Power Connection on the Stray Inductance of Bridge Arm in High-Power Converters

2013 ◽  
Vol 722 ◽  
pp. 98-102
Author(s):  
Yi Feng Zhu
Keyword(s):  
Power Electronics ◽  
High Power ◽  
Power Converters ◽  
Power Converter ◽  
Main Concern ◽  
Power Devices ◽  
Dc Power ◽  
Converter Design ◽  
Simulation Results

In high-power converter design, low-inductance busbar connecting DC capacitors and power devices is main concern to improve the quality of the whole power electronics system. There are several facts which affect the stray inductance of bridge arm. This paper mainly analyzed the influence of DC-power connection on the stray inductance. The Psim9.0 software were used to calculated the stray inductance. The conclusion is that DC-power connection should be put different side of DC capacitance because lower stray inductance can be obtained than that of the same side. The simulation results are given to illustrate the effectiveness.

Review on the Technology of on Board DC/DC Conversion for EV Application

2013 ◽  
Vol 321-324 ◽  
pp. 347-351
Author(s):  
Li Wei ◽  
Shuai Liu ◽  
Di Fu Zhan ◽  
Xu Ping Cai ◽  
Zhi Dong Li ◽  
...  
Keyword(s):  
Low Power ◽  
High Power ◽  
Control Strategy ◽  
Power Supply ◽  
Topology Control ◽  
Power Converter ◽  
Auxiliary Power ◽  
The Common ◽  
Traction System ◽  
Development Tendency

The paper gives a systemic classification to the common electric vehicle (EV). The technology of low power converter using as auxiliary power supply and high power converter using for traction system has been deeply discussed from the view of topology, control strategy and devices. Finally, the development tendency of on board DC conversion technology is prospected.

scholarly journals MVDC Railway Traction Power Systems; State-of-the Art, Opportunities, and Challenges

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4156
Author(s):  
Patrobers Simiyu ◽  
I. E. Davidson
Keyword(s):  
Smart Grid ◽  
Power Systems ◽  
High Power ◽  
High Speed ◽  
Cost Effective ◽  
Power Converter ◽  
Voltage Source ◽  
Rolling Stock ◽  
The Future ◽  
Traction Power

Advances in voltage-source converters (VSCs), as well as their successful application in VSC-HVDC systems, have motivated growing interests and research in medium-voltage direct current (MVDC) traction power systems (TPSs) for high-speed rail (HSR) applications. As an emerging power-converter-based infrastructure, this study reviewed developments that shape two key evolving pieces of equipment—namely, high-power traction substation (TSS) converters, and power electronic transformers (PETs)—for MVDC TPS as well as prospects for smart grid (SG) applications in the future. It can be deduced that cost-effective and robust high-power TSS converters are available from hybrid modular multilevel converters (MMCs) for enhanced performance and fault-tolerance capability. In addition, silicon carbide (SiC) MMC-based PETs with input-series-output-parallel (ISOP) configuration are present for greater weight/size reduction and efficiency for MVDC rolling stock design. Finally, the implementation of a smart MVDC TPS incorporating a sophisticated railway energy management system (REM-S) based on the smart grid principles is feasible in the future, with numerous benefits. However, there are related challenges, like knowledge gaps on these technologies, the high costs involved, and lack of standardization to overcome to realize widespread future commercial deployment.

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