quarta-feira, 27 de março de 2024
Battery Management System—Balancing Modularization Based on a Single Switched Capacitor and Bi-Directional DC/DC Converter with the Auxiliary Battery---Mohamed DAOWD-
Abstract:
Lithium-based batteries are considered as the most advanced batteries technology,
which can be designed for high energy or high power storage systems. However, the battery
cells are never fully identical due to the fabrication process, surrounding environment
factors and differences between the cells tend to grow if no measures are taken. In order to
have a high performance battery system, the battery cells should be continuously balanced
for maintain the variation between the cells as small as possible. Without an appropriate
balancing system, the individual cell voltages will differ over time and battery system
capacity will decrease quickly. These issues will limit the electric range of the electric
vehicle (EV) and some cells will undergo higher stress, whereby the cycle life of these
cells will be shorter. Quite a lot of cell balancing/equalization topologies have been
previously proposed. These balancing topologies can be categorized into passive and
active balancing. Active topologies are categorized according to the active element used
for storing the energy such as capacitor and/or inductive component as well as controlling
switches or converters. This paper proposes an intelligent battery management system (BMS)
including a battery pack charging and discharging control with a battery pack thermal
management system. The BMS user input/output interfacing. The battery balancing system
is based on battery pack modularization architecture. The proposed modularized balancing
system has different equalization systems that operate inside and outside the modules.
Innovative single switched capacitor (SSC) control strategy is proposed to balance between
the battery cells in the module (inside module balancing, IMB). Novel utilization of
isolated bidirectional DC/DC converter (IBC) is proposed to balance between the modules
with the aid of the EV auxiliary battery (AB). Finally an experimental step-up has been
implemented for the validation of the proposed balancing system.
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Design and Analysis of Maintenance Free Lead Acid Battery System Used in UPS-Pratik Roy University of Windsor
Design and Analysis of Maintenance Free Lead Acid Battery System Used in UPS Pratik Roy, Student Member, IEEE, Varun Kumar Vats, Student Member, IEEE and Pronay Kumar Chakrobarty, Student Member, IEEE
Abstract—Voltage interruption can be happened by several
reasons like blackout, brownout, noise, spike etc. Those incidents
have consequential effect on computer’s hardware such as data
losses, burning of sensitive equipment etc. So, UPS broadly called
an uninterruptible power supply device is used in computer to
provide a backup power source which will maintain the
consistency in voltage and flow of electricity which in turn will
provide consistent power input. Batteries are used as energy
storage device in UPS which store electric energy during
charging state and discharge that electric energy during any kind
of interruption to provide backup as additional power source for
the computer. So, the most important integral part of UPS is the
battery pack which is used as energy storage device in UPS. Main
goal of this paper is to design the suitable battery pack for UPS
so that it can give maximum backup range to the computer
within a certain economical range or cost limit. Also, another
goal is to analyze the electrical and thermal parameters of the
designed battery pack and cell and suggest better solutions to
make the wet battery cell maintenance free (no need of addition
of water).
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terça-feira, 26 de março de 2024
A High Gain Single Switch DC-DC Converter with Double Voltage Booster Switched Inductors Nagaraju Addagatla, Rajender Boini-Advances in Science and Technology Research Journal 2023, 17(2), 1–11
A High Gain Single Switch DC-DC Converter with Double Voltage Booster Switched InductorsNagaraju Addagatla1, Rajender Boini1*1 Department of EEE, Chaitanya (Deemed to be University) Warangal, Telangana, India* Corresponding author’s email:nagaraju.addagatla@gmail.com
ABSTRACT
The research for novel power conversion topologies and the development of cutting-edge power component tech-nologies are driven by the demand for renewable and much more efficient electricity generation, delivery, and con-version. Simulation and analysis high voltage gain DC-DC converter with double voltage booster switched induc-tor are analyzed in this paper. Multilevel boost converter topologies recently reintroduced, are gaining popularity as a solution for industrial and transportation power systems because they enable the use of innovative, efficient, but relatively low voltage low-voltage devices at greater voltage and power levels. there is only one power switch on the converter that is planned here, three diodes, two capacitors, and two inductors to achieve ultra-high gain with better efficiency. High voltage gain, minimal switch stress, and the ability to lessen input-current ripple and capacitor voltage ripple are all benefits of the topology. When it switches complementary, the capacitors’ ripple is reduced, which lowers the size requirement for the capacitors. A 12V, 500 watts prototype was analyzed, simulated and designed. at a duty cycle of 0.75 it is achieved high DC-DC gain i.e 19 and efficiency 93%. The practicality of the converter will be demonstrated by the close agreement between the analysis and simulation findings.
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sábado, 23 de março de 2024
PONENCIA INTERNACIONAL UPS:SISTEMA DE ENERGIA ININTERRUMPIDA(NOBREAK) -ESCUELA PROFESIONAL INGENIERIA ELECTRICA-UNIVERSIDAD SAN ANTONIO ABAD DEL CUZCO-PERU
APOYO ECCOPOWER SISTEMAS ENERGIA -LACERDA SISTEMAS ENERGIA-BRASIL
El capítulo estudiantil de la Sociedad de Energía y Potencia IEEE UNSAAC, los invita a participar de la ponencia a cargo del Ing. Armando W. Cavero Miranda con el fin de ampliar la perspectiva profesional y laboral de los estudiantes de la Escuela Profesional.
📆Fecha: Jueves 21 de Marzo
🕔Hora: 10:00 (GMT-5)
Modalidad: Presencial
📍Lugar: Salón de grados de Ingeniería Electrónica
domingo, 17 de março de 2024
7º Congresso Brasileiro de Eletrônica de Potência - COBEP2003
Sempre apoiando a PESQUISA E DESENVOLVIMENTO no BRASIL durante toda minha vida me dediquei a minha paixão a Eletrônica de Potência ,hoje temos muitos Doutores e Mestres em todas as universidades e setores da industria nacional,no novo escenario mundial e muito importante o conhecimento sempre de novas tecnologias.
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