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A Modular Multi-Level Converter for ...

George, Sharon Sanjeev.

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A Modular Multi-Level Converter for Energy Management of Hybrid Energy-Storage Systems in Electric Vehicles.

Record Type:	Electronic resources : Monograph/item
Title/Author:	A Modular Multi-Level Converter for Energy Management of Hybrid Energy-Storage Systems in Electric Vehicles./
Author:	George, Sharon Sanjeev.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2018,
Description:	59 p.
Notes:	Source: Masters Abstracts International, Volume: 80-09.
Contained By:	Masters Abstracts International80-09.
Subject:	Automotive engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13424321
ISBN:	9780438889972

A Modular Multi-Level Converter for Energy Management of Hybrid Energy-Storage Systems in Electric Vehicles.
George, Sharon Sanjeev.

A Modular Multi-Level Converter for Energy Management of Hybrid Energy-Storage Systems in Electric Vehicles. - Ann Arbor : ProQuest Dissertations & Theses, 2018 - 59 p.

Source: Masters Abstracts International, Volume: 80-09.

Thesis (M.S.)--San Jose State University, 2018.

This item must not be sold to any third party vendors.

Electric vehicles (EVs) are substantial applications of clean energy. Their effectiveness for mainstream transportation is predicated on the efficient use of stored energy within the vehicles' power pack. Among rechargeable storage solutions, lithium-ion (Li-ion) battery cells have high energy density making them suitable to supply the EVs' average power. However, the peak power requirements of the vehicles exert stress on the Li-ion cells due to their low pulsating power capabilities. Ultracapacitors can be used instead as the power-pulsating storage elements given their superior power density. Incorporating the two cell types for energy storage signifies a hybrid configuration that leads to challenging tasks in managing the energy between cells due to varying cell dynamics. Therefore, this study investigated the design of an end-to-end hybrid energy-storage and management system. The limitations of existing power electronics and control schemes were identified based on comparative analysis, both on a cell level and on a system level. Subsequently, an energy system was developed that utilized modular multi-level converters to manage the energy between the different cell types. The formulated control strategy accounted for various power modes and added immense flexibility in charge sharing through diverse switching states. Furthermore, the proposed configuration eliminated the conventional need for a system level drive inverter feeding the EV motor. Electro-mechanical modeling results and physical design merits verified the proposed configuration's effectiveness in improving EV efficiency.

ISBN: 9780438889972Subjects--Topical Terms:

2181195
Automotive engineering.
Subjects--Index Terms:

Battery management

A Modular Multi-Level Converter for Energy Management of Hybrid Energy-Storage Systems in Electric Vehicles.
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500 $a Publisher info.: Dissertation/Thesis.
500 $a Advisor: Badawy, Mohamed O.
502 $a Thesis (M.S.)--San Jose State University, 2018.
506 $a This item must not be sold to any third party vendors.
520 $a Electric vehicles (EVs) are substantial applications of clean energy. Their effectiveness for mainstream transportation is predicated on the efficient use of stored energy within the vehicles' power pack. Among rechargeable storage solutions, lithium-ion (Li-ion) battery cells have high energy density making them suitable to supply the EVs' average power. However, the peak power requirements of the vehicles exert stress on the Li-ion cells due to their low pulsating power capabilities. Ultracapacitors can be used instead as the power-pulsating storage elements given their superior power density. Incorporating the two cell types for energy storage signifies a hybrid configuration that leads to challenging tasks in managing the energy between cells due to varying cell dynamics. Therefore, this study investigated the design of an end-to-end hybrid energy-storage and management system. The limitations of existing power electronics and control schemes were identified based on comparative analysis, both on a cell level and on a system level. Subsequently, an energy system was developed that utilized modular multi-level converters to manage the energy between the different cell types. The formulated control strategy accounted for various power modes and added immense flexibility in charge sharing through diverse switching states. Furthermore, the proposed configuration eliminated the conventional need for a system level drive inverter feeding the EV motor. Electro-mechanical modeling results and physical design merits verified the proposed configuration's effectiveness in improving EV efficiency.
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