DOI: 10.1109/APEC.2016.7468321 Corpus ID: 28880135 A novel low-cost online state of charge estimation method for reconfigurable battery pack @article{Lin2016ANL, title={A novel low-cost online state of charge estimation method for reconfigurable battery pack}, author={Ni Lin and Song Ci and Dalei Wu}, journal={2016 IEEE Applied Power …
Battery packs with a large number of battery cells are becoming more and more widely adopted in electronic systems, such as robotics, renewable energy systems, energy storage in smart grids, and electronic vehicles. Therefore, a well-designed battery pack is essential for battery applications. In the literature, the majority of research in …
to the battery cost of 8300 $ for the constructed demonstrator, the component overhead is 4.7%. The MOSFET s need to be scaled-up in a full-scale system, and the cost is therefore ...
Larger battery packs, an efficient battery management system, highly efficient electromechanical conversion, and fast battery charging are the key factors for extending the drive range of electric vehicles and the expansion of electromobility. We present a novel highly stable modular multilevel powertrain design with a variable dc-bus voltage, active …
Research on Reconfigurable Battery Systems (RBS) is gaining emphasis over the tradi-tional fixed topology of the battery pack due to its advantages of adapting flexible to …
The concept of reconfigurable energy systems has become more and more popular in recent years for electric vehicle applications, which can largely enhance battery performance and extend battery lifetime. Active balancing is an advanced function realized by battery management systems (BMSs) to improve energy efficiencies and avoid …
In the context of the electrification of the mobility sector, smart algorithms have to be developed to control battery packs. Smart and reconfigurable batteries are a promising alternative to conventional battery packs and offer new possibilities for operation and condition monitoring. This work proposes a reinforcement learning (RL) algorithm to …
The MOSFETs need to be scaled-up in a full-scale system, and the cost is therefore expected to increase linearly with the battery size while the fixed cost is the same. For a 48 V, full size EV with series …
A module-based reconfigurable battery system (RBS) for high-voltage charging and low-voltage driving is presented. It demonstrates a possible charging …
Although the battery systems continue to grow in electric vehicles, smart grids, and backup power systems due to their capability to supply power and energy, the current battery systems essentially are fixed which limits efficient energy usage. Recently, by employing the digital battery concept through energy digitization, traditional battery …
This paper presents a grid-tied reconfigurable battery storage system, which consists of a single-phase two-stage bidirectional PWM converter and a reconfigurable battery pack (RBP). The two-stage PWM converter provides an interface between the AC power grid and the RBP and operates in two different modes: (1) grid to battery (G2B) mode, in which …
Cell balancing is used in battery systems to guarantee uniform charge and discharge of their cells during operations, and aims at improving the performance of the whole battery pack. Onboard battery performance and lifespan are particularly important in Electric Vehicles (EVs), since they have a direct impact on their autonomy. This paper …
A groundbreaking method employing feedforward neural networks (FNN) for the precise estimation of internal parameters in modular reconfigurable batteries (MRBs) holds potential for cost reduction and simplification of battery monitoring systems, enhancing MRB efficiency across diverse applications. This paper introduces a …
In a reconfigurable battery pack, the connections among cells can be changed during operation to form different configurations. This can lead a battery, a …
The battery differences not only affect the reliability and security of battery packs but also accelerate the decline of the packs'' life. Although battery management systems (BMS) and equalization circuit can be used to balance the differences, only the whole battery pack can be protected with high-cost and complex circuits. Dynamic reconfigurable battery …
This paper introduces a groundbreaking method employing feedforward neural networks (FNN) for the precise estimation of internal parameters in modular reconfigurable batteries (MRBs). MRBs, integral in numerous applications, particularly Electric Vehicles (EVs), often face challenges in accurately measuring individual battery parameters due to extensive …
This paper proposes an equalization system for the secondary use of retired battery. First, the proposed converter in the system is characterized by its low cost, achieved through the utilization of the reconfigurable structure. Moreover, the SOC balancing strategy is proposed to regulate the equalization current based on the SOC state, facilitating …
Modular multilevel converters and cascaded H-bridge converters are established concepts in ultrahigh-voltage systems. In combination with batteries, these circuits allow dynamically changing the series/parallel configuration of the battery modules, also known as reconfigurable batteries. A large body of research discusses applications of such …
As shown in many articles [1], battery-switching technologies of Self-Reconfigurable Batteries (SRBs) promise significant improvements in terms of autonomy and battery life, cell balancing [2–7], recharging …
Self-reconfigurable battery architectures: a) DC/DC connected in parallel to each cell. b) ... The first term g (P b a t, k, u k, Δ t) in the equation (4) is the stage cost, i.e. the generated loss obtained by applying the control signal u k …
In previous literature, there have been studied several different reconfigurable battery pack designs using from 1 up to 6 switches per battery cell, …
In a reconfigurable battery pack, the connections among cells can be changed during operation to form different configurations. This can lead a battery, a passive two-terminal device, to a smart battery that can reconfigure itself according to the requirement to enhance operational performance.
Modular Reconfigurable Mixed Battery System with Heterogeneous Modules Abstract: Contrary to the half-bridge modules in conventional modular multilevel converters with only serial and bypass operation, emerging topologies bring additional parallel inter-module connectivity, introducing sensorless voltage balancing, load current …
Author: Shaheer, Muhammad Title: Intelligent management techniques for reconfigurable battery systems Advisors: Shao, Zili (COMP) Guan, Nan (COMP) Degree: Ph.D. Year: 2020 Subject: Battery chargers -- Computer-aided …