• Title, Summary, Keyword: charging system

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Power stage for Contact-less Induction Charging (비접촉식 충전기의 전력 전달부 설계)

  • 이민철;최배근;홍영욱;조규형
    • Proceedings of the IEEK Conference
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    • pp.2939-2942
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    • 2003
  • A new contactless Li-ion battery charging system was proposed. The conventional methods for charging Li-ion battery have some weak points. For example, there can be a contact failure, a poor waterproof, and a difficulty to standardize the battery charging systems. The new proposed system can overcome these weak points. The new charging system is composed of power transfer part and data transfer part. This paper focuses on the power transfer part for contactless battery charging. The power stage is mainly composed of PPRC(Push-pull Parallel Resonant Converter) and flyback converter. The new method of chaging Li-ion battery was proposed and PPRC + flyback-boost topology was analyzed. The proposed toplogy was tested under the constant voltage control and the constant current control which are adequate for charging Li-ion battery.

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The smart EV charging system based on the big data analysis of the power consumption patterns

  • Kang, Hun-Cheol;Kang, Ki-Beom;Ahn, Hyun-kwon;Lee, Seong-Hyun;Ahn, Tae-Hyo;Jwa, Jeong-Woo
    • International Journal of Internet, Broadcasting and Communication
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    • v.9 no.2
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    • pp.1-10
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    • 2017
  • The high costs of electric vehicle supply equipment (EVSE) and installation are currently a stumbling block to the proliferation of electric vehicles (EVs). The cost-effective solutions are needed to support the expansion of charging infrastructure. In this paper, we develope EV charging system based on the big data analysis of the power consumption patterns. The developed EV charging system is consisted of the smart EV outlet, gateways, powergates, the big data management system, and mobile applications. The smart EV outlet is designed to low costs of equipment and installation by replacing the existing 220V outlet. We can connect the smart EV outlet to household appliances. Z-wave technology is used in the smart EV outlet to provide the EV power usage to users using Apps. The smart EV outlet provides 220V EV charging and therefore, we can restore vehicle driving range during overnight and work hours.

Characteristic Analysis of HTS Magnet Charging System Combined with PV System Using MPPT Control (MPPT제어를 적용한 태양광발전 연계형 고온초전도마그넷 충전장치 특성 해석)

  • Kim, Dae-Wook;Yoon, Yong-Soo;Chung, Yoon-Do;Jo, Hyun-Chul;Kim, Ho-Min;Kim, Tae-Jung;Oh, Jae-Gi;Ko, Tae-Kuk
    • Progress in Superconductivity and Cryogenics
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    • v.14 no.1
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    • pp.8-13
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    • 2012
  • We already fabricated a proto-type HTS charging system with photovoltaic (PV) system and obtained design parameters for DC converter and HTS charging system. In order to develop the real scale charging system efficiently, we suggested a maximum power point tracking (MPPT) controller using a perturb and observe (P&O) MPPT algorithm for PV system. In this paper, we designed and simulated the MPPT controller for the real scale HTS charging system. As well as, the PV module has been analyzed by solving solar cell equivalent equations. The simulated and theoretical results presented here are being considered the next study which addresses the design and fabrication parameters.

Charging Control Strategy of Electric Vehicles Based on Particle Swarm Optimization

  • Boo, Chang-Jin
    • Journal of IKEEE
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    • v.22 no.2
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    • pp.455-459
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    • 2018
  • In this paper, proposed a multi-channel charging control strategy for electric vehicle. This control strategy can adjust the charging power according to the calculated state-of-charge (SOC). Electric vehicle (EV) charging system using Particle Swarm Optimization (PSO) algorithm is proposed. A stochastic optimization algorithm technique such as PSO in the time-of-use (TOU) price used for the energy cost minimization. Simulation results show that the energy cost can be reduced using proposed method.

Design and Implementation on High Efficient EPMS(Energy-Power Management System) for USN Sensor Node Using Self-Charging Module (자가 충전 모듈을 이용한 USN 센서노드용 고효율 에너지 전력관리 시스템 구현 및 검증)

  • Kim, Hyun-Woong;Park, Hee-Jeong;Lim, Se-Mi;Oh, Jong-Hwa;Roh, Hyoung-Hwan;Park, Jun-Seok
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.60 no.1
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    • pp.124-130
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    • 2011
  • In this paper, We design and implementation of Self-Charging Module for charging to battery which obtaining the environment inergy such as solar energy. The power chared battery through the charging module send to sensor node. And implementation of System Activation Module(SAM) based on ID system and Dynamic Power Management Module(DPM) with SPO(Self Power Off). This system consume power only communication between the sensor nodes. We verification this system by implementing the high efficiency poweer management system.

The Modeling of EV Fast Charging System using EMTP (EMTP를 이용한 전기자동차용 급속 충전시스템 모델링)

  • Ju, Seong-Chul;Shim, Hyong-Wook;Lee, Jae-Won;Kim, Chul-Hwan
    • Proceedings of the KIEE Conference
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    • pp.203-204
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    • 2011
  • There is a growing interest on Electric Vehicles due to global warming and greenhouse gas emission issue. Recently, new technologies of EV fast charging are continually being developed and power supply infrastructure technologies are being developed widely. In general, the fast charging system consists of AC-DC converter, DC-DC converter, and filters. This paper performs modeling of Electric Vehicle fast charging system using EMTP(Electromagnetic transient program).

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Study on the High and High Voltage 35 kW, 50 kV Inverter Power Supply (대출력 고전압 35 kW, 50 kV 인버터 전원장치 개발에 관한 연구)

  • Son, Yoon-Gyu;Jang, Sung-Duck;Oh, Jong-Seok;Cho, Moo-Hyun
    • The Transactions of the Korean Institute of Electrical Engineers B
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    • v.51 no.11
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    • pp.628-634
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    • 2002
  • A capacitor-charging power supply using high frequency inverter technology is strongly recommended for the charging section of the pulsed power supplies. A high frequency inverter swiching makes the overall system size small. The command-charging feature can guarantee the higher reliability of switching function. The protection circuit can be easily included in the system and the good regulation of charging voltage can be acieved by the feedback system. Several modules can be stacked to supply required output power and a failed module can be easily replaced. A 50-kV, 35-kW capacitor charging power supply is developed. In this paper the detailed design and test results of a prototype unit are presented.

Receiver Protection from Electrical Shock in Vehicle Wireless Charging Environments

  • Park, Taejun;Hwang, Kwang-il
    • Journal of Information Processing Systems
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    • v.16 no.3
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    • pp.677-687
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    • 2020
  • This paper deals with the electrical shock that can occur in a car wireless charging system. The recently released the Wireless Power Consortium (WPC) standard specifies that the receiver must be protected from the radio power generated by the transmitter and presents two scenarios in which the receiver may be subjected to electrical shock due to the wireless power generated by the transmitter. The WPC also provides a hardware approach for blocking the wireless power generated by the transmitter to protect the receiver in each situation. In addition, it presents the hardware constraints that must be applied to the transmitter and the parameters that must be constrained by the software. In this paper, we analyze the results of the electric shock in the vehicle using the WPC certified transmitter and receiver in the scenarios presented by WPC. As a result, we found that all the scenarios had electrical shocks on the receiver, which could have a significant impact on the receiver circuitry. Therefore, we propose wireless power transfer limit (WPTL) algorithm to protect receiver circuitry in various vehicle charging environments.

A Study on the Comparison of Full-Bridge Dual Converter for Various Fast Charging System (다양한 급속 충전용 풀브리지 듀얼 컨버터의 비교 연구)

  • Ban, Choong Hwan;Lee, Y.J;Kwon, W.S;Han, D.H;Choe, J.M;Choe, Gyu-Ha;Eun, J.M
    • Proceedings of the KIPE Conference
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    • pp.279-280
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    • 2012
  • In this paper, as a part of studying the fast battery charger, designed the charging system by applying dual converter. This dual converter was applied to the charging system for reducing time by dividing high current which prevents the damage of parts from heating of components. In this paper continued the task by switching the topology of the dual converter for fast charging battery into SISO, PISO, and PIPO. The study to derive the optimized system topology by analyzing the efficiency of charging system.

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Battery Charging System for PHEV and EV using Single Phase AC/DC PWM Buck Converter

  • Lee, Jung-Hyo;Jung, Doo-Yong;Park, Sang-Hoon;Lee, Taek-Kie;Kim, Young-Ryul;Won, Chung-Yuen
    • Journal of Electrical Engineering and Technology
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    • v.7 no.5
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    • pp.736-744
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    • 2012
  • In this paper, a battery charging system for Plug-in Hybrid Electric Vehicle (PHEV) and Electric Vehicle (EV), and operation algorithm of charging system are introduced. Also, the proposed charging system uses commercial electricity in order to charge the battery of parked PHEV and 48V battery charging system with power factor controllable single phase converter for PHEV is investigated in this paper. This research verifies the power factor control of input and the converter output controlled by the charge control algorithm through simulation and experiment.