Self-Adaptation Control of Second-Life Battery Energy Storage System Based on Cascaded H-Bridge Converter

Liu, Chang; Cai, Xu; Chen, Qiang

doi:10.1109/jestpe.2018.2886965

Cited by 32 publications

(6 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Consequently, the power exchange between the battery side of the converter and the AC grid side consistently aligns with the command values P * and Q * . Additional details regarding the implementation of grid-connected power control can be found in reference [26].…”

Section: Grid-connected Power Controlmentioning

confidence: 99%

“…The control methods under DC and AC fault modes were investigated in [25], where HASBC is used to balance the SoC in the DC-side fault mode by injecting fundamental circulating current, and the DC component is regulated to balance the SoC in the AC-side fault mode. The authors in [26] analyzed the gain calculation of the grid-connected power-current double-closed control and proposed a self-adaption control based on an online SoC capacity estimation. The SoC convergence rate and overmodulation of submodules are discussed in [27], which highlights that the methods mentioned above are not always optimal and that SoC may not converge in some cases.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Modeling and Control of a Modular Multilevel Converter Based on a Battery Energy Storage System with Soft Arm State-of-Charge Balancing Control

Wang,

Chakraborty,

Geury

et al. 2024

Energies

View full text Add to dashboard Cite

Modular multilevel converters (MMCs) with integrated battery energy storage systems (BESSs) are becoming crucial for modern power grids. This paper investigates the modeling and control of a grid-connected MMC-BESS, with a specific emphasis on state-of-charge (SoC) balancing. Compared to conventional hard arm SoC balancing control (HASBC), this paper proposes an alternative soft arm SoC balancing control (SASBC). The simulation results and analysis indicate the following: 1. SASBC provides superior performance in achieving SoC balance both between and within the arms, as compared to HASBC. 2. The MMC-BESS power fluctuates between phases, arms, and individual submodules to balance the SoC of batteries. After the accomplishment of SoC equalization, the power is equally distributed, and the circulating current is well eliminated. 3. MMC-BESS can operate in both the charging and discharging modes, and the total harmonic distortion (THD) of the output current is reduced from 6.80% to 1.13% after SoC balancing is achieved. 4. A robustness test shows the control system’s effective performance in handling component variations.

show abstract

Section: Grid-connected Power Controlmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modeling and Control of a Modular Multilevel Converter Based on a Battery Energy Storage System with Soft Arm State-of-Charge Balancing Control

Wang,

Chakraborty,

Geury

et al. 2024

Energies

View full text Add to dashboard Cite

show abstract

“…In the case of cascaded H-bridge multilevel converters, each phase contains several series-connected modules (Figure 13a) composed of dedicated cells and an inverter, together forming an independent source. Within a BESS [106], these sources can be charged and discharged more evenly due to the independent nature of their involvement in the current path and potentially free exchange of the sources [107]. Due to a low number of elements, the considered single-stage converters operate with best efficiency at their particular operation point.…”

Section: Cascaded H-bridge Converter Structuresmentioning

confidence: 99%

Interface Converters for Residential Battery Energy Storage Systems: Practices, Difficulties and Prospects

et al. 2021

View full text Add to dashboard Cite

Recent trends in building energy systems such as local renewable energy generation have created a distinct demand for energy storage systems to reduce the influence and dependency on the electric power grid. Under the current market conditions, a range of commercially available residential energy storage systems with batteries has been produced. This paper addresses the area of energy storage systems from multiple directions to provide a broader view on the state-of-the-art developments and trends in the field. Present standards and associated limitations of storage implementation are briefly described, followed by the analysis of parameters and features of commercial battery systems for residential applications. Further, the power electronic converters are reviewed in detail, with the focus on existing and perspective non-isolated solutions. The analysis covers well-known standard topologies, including buck-boost and bridge, as well as emerging solutions based on the unfolding inverter and fractional/partial power converters. Finally, trends and future prospects of the residential battery storage technologies are evaluated.

show abstract

“…In recent years, the development of the smart grid philosophy and proactive integration of renewable energies such as wind and solar power into the power grid have led to increased research into energy storage systems. One of the most commonly used systems is the lithium-ion battery energy storage system, which offers advantages such as a long cycle life, high energy density, and high reliability [1][2][3][4][5][6][7][8]. According to the different cathode materials, lithium-ion batteries can be divided into a lithium cobalt oxide (LCO) battery, lithium manganese oxide (LMO) battery, lithium iron phosphate (LFP) battery, and ternary material lithium battery [9].…”

Section: Introductionmentioning

confidence: 99%

State-of-Charge Balancing Control for Dual-Bus Battery System with Low-Voltage Output Regulation

Zhang,

Wang,

Wang

et al. 2023

WEVJ

View full text Add to dashboard Cite

This article introduces a new method for balancing the state of charge (SOC) in a dual-bus battery system architecture. The system consists of multiple battery cells or modules connected in series to provide high voltage output. Additionally, low-power flyback converters are connected in series with each battery cell or module at the inputs, and their outputs are connected in parallel to provide lower voltage output. The SOC balancing algorithm ensures that the lower voltage output remains at a desired reference value by adjusting the average duty cycle of each power converter, while also balancing the rate of charge or discharge of each battery cell or module. This SOC balancing process does not affect the normal operation of the high voltage power output. In other words, the dual output (high voltage and low voltage) of the battery system can function independently, and the balancing current only flows through the low voltage power path. Experimental results from a prototype are provided and discussed to validate the proposed dual-bus battery system and controller.

show abstract

Self-Adaptation Control of Second-Life Battery Energy Storage System Based on Cascaded H-Bridge Converter

Cited by 32 publications

References 47 publications

Modeling and Control of a Modular Multilevel Converter Based on a Battery Energy Storage System with Soft Arm State-of-Charge Balancing Control

Modeling and Control of a Modular Multilevel Converter Based on a Battery Energy Storage System with Soft Arm State-of-Charge Balancing Control

Interface Converters for Residential Battery Energy Storage Systems: Practices, Difficulties and Prospects

State-of-Charge Balancing Control for Dual-Bus Battery System with Low-Voltage Output Regulation

Contact Info

Product

Resources

About