Hot-Swappable Modular Converter System Control for Heterogeneous Batteries and ESS

Cha, Dae-Seak; Choi, Jung-Sik; Oh, Seung-Yeol; Ahn, Hyunjin; Lim, Young-Cheol

doi:10.3390/en11020309

Cited by 3 publications

(3 citation statements)

References 16 publications

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“…This script is a C programme that performs the following. The script essentially adjusts the reference current for charging or discharging based on the SoC values of the battery modules to manage the set point of current appropriately [12]. The following section presents the simulation results of this model.…”

Section: Control Logicmentioning

confidence: 99%

Current Control of Battery Pack Modules in Parallel Connection According to SoC

Vrazic,

Persic,

Virtic

et al. 2023

ELEKTRON ELEKTROTECH

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Electric vehicles, especially cars, have been in the spotlight for some time now. In the focus of environmentalists, engineers, users, media, etc. With the growth and advancement of the market for such vehicles, other electric vehicles are also focussing on. One of such vehicles is boats, particularly smaller boats up to 8–10 meters in length. Of course, the biggest problem here is charging. The general idea is to use battery modules that can be easily carried and enable hot swapping. This paper investigates scenarios and simulations of the control system for hot swapping of the battery module. Simulations of connection of two and three battery modules to parallel operation and current control are presented in this paper, as well as applied control rules.

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Section: Control Logicmentioning

confidence: 99%

Current Control of Battery Pack Modules in Parallel Connection According to SoC

Vrazic,

Persic,

Virtic

et al. 2023

ELEKTRON ELEKTROTECH

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show abstract

“…Each leg of the bidirectional power interface had a 90 • phase shift to suppress the input current ripple, and the voltage and current stress applied to the components. Due to the phase shift of each leg, the bidirectional power interface could reduce the required output capacitance due to the four times increased effective switching frequency [25]. The bidirectional power interface charges or discharges the distributed ESSs on the basis of the current reference determined by the proposed DC bus voltage regulation algorithm.…”

Section: Bidirectional Power Interface For Distributed Essmentioning

confidence: 99%

Autonomous DC-Bus Voltage Regulation in DC Microgrid Using Distributed Energy Storage Systems

Choi

Cha

et al. 2022

Energies

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A DC microgrid has many advantageous features, such as low power losses, zero reactive power, and a simple interface with renewable energy sources (RESs). A bipolar DC microgrid is also highlighted due to its high-power quality, improved reliability, and enhanced system efficiency. However, the bipolar DC microgrid has high DC bus voltage fluctuation due to the load power unbalance between the poles. Therefore, this paper analyzes the DC bus voltage fluctuation that can occur in the bipolar DC microgrid. An autonomous grid voltage regulation method is introduced to regulate the DC bus voltage of a bipolar DC microgrid using distributed energy storage systems (ESSs). The proposed grid voltage regulation scheme using the distributed ESSs could regulate DC bus voltage in real time, regardless of the structure of the DC microgrid without external communication. Lastly, experimental results using a lab-scale bipolar DC microgrid prototype verified the proposed method.

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“…A bus transceiver is such a circuit that, in the case of many-to-one and time-sharing transmission, if the data path is not strobed, the path is in a high-impedance state and acts as an isolator; when the path is strobed, the path provides level shifting and driving. This application requires the bus transceiver to have a hot-swap ability [1,2,3].…”

Section: Introductionmentioning

confidence: 99%

An implementation of hot-swap circuit with high reliability

et al. 2020

Microelectronics Journal

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For the information transmission and application field of the bus, it is necessary to design a bus transceiver with high reliability and hot-swap ability. In order to achieve this requirement, this paper proposes a novel transceiver circuit with hot-swap structure. This structure effectively improves the transistor utilization efficiency and reduces the chip area on the premise of achieving the hot-swap performance. Furthermore, the traditional Schottky diode is avoided, and the hot-swap circuit proposed in this work can be implemented in any CMOS process. A prototype was fabricated in CSMC 0.5µm CMOS technology, and the measurement results match well with the simulation results show that the chip meets the design requirements.

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Hot-Swappable Modular Converter System Control for Heterogeneous Batteries and ESS

Cited by 3 publications

References 16 publications

Current Control of Battery Pack Modules in Parallel Connection According to SoC

Current Control of Battery Pack Modules in Parallel Connection According to SoC

Autonomous DC-Bus Voltage Regulation in DC Microgrid Using Distributed Energy Storage Systems

An implementation of hot-swap circuit with high reliability

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