Average Modeling and Performance Analysis of Voltage Sensorless Active Supercapacitor Balancer With Peak Current Protection

Yuhimenko, Vladimir; Geula, Gal; Agranovich, G.; Averbukh, Moshe; Kuperman, Alon

doi:10.1109/tpel.2016.2547906

Cited by 25 publications

(12 citation statements)

References 32 publications

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“…During experiments, the NHR-4700 electronic load, operating in a constant power mode, was used as the system load. A 29F SC bank was realized by a series connection of two Maxwell BMOD0058-E016-B02 58F supercapacitors [18,19] with an active balancer [20], required to avoid overcurrent in case of supercapacitors misbalance [21]. The supercapacitor charger was realized by a unidirectional 10 A non-inverting buck-boost converter [22].…”

Section: Verificationmentioning

confidence: 99%

Hybrid Internal Combustion Engine Based Auxiliary Power Unit

et al. 2020

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The brief presents some principles of the ON/OFF operational strategy applied to energy management of a hybrid internal combustion engine (ICE) based auxiliary power unit (APU). It is shown that significant reduction of fuel consumption (78% for the example system presented) and maintenance expenses (80% operation time decrease was attained by the system) may be achieved by such a strategy, shifting the system operation point towards corresponding optimal region. The side effect of aggravated amount of starting events is cured by employing an actively balanced supercapacitor (SC)-based emergency starter (SCS). The SCS operates as short-time energy storage device, charging from the battery at a low rate and then providing a current burst required for proper internal combustion engine starting. Current sensorless method of automatic connection (based on bus voltage sensing) and disconnection (based on sensing the voltage across bidirectional MOSFET-based switch) of the SCS is also proposed. The proposed circuitry, successfully validated by experiments, may be arbitrarily scaled up or down according to application rating.

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Section: Verificationmentioning

confidence: 99%

Hybrid Internal Combustion Engine Based Auxiliary Power Unit

et al. 2020

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“…Replacing the diodes in the traditional buck-boost circuit with MOSFET transistors enables bidirectional power transfer and continuous current mode [28][29][30][31][32]. e system flow of the equalization technology is shown in Figure 1.…”

Section: Operating Principle and Designmentioning

confidence: 99%

Hybrid Natural and Forced Active Balancing Control of Battery Packs State of Charge Based on Partnership for a New Generation of Vehicles

Wei

Dai

Wang

et al. 2018

Journal of Electrical and Computer Engineering

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Battery packs are widely used in electric vehicles, and their state-of-charge is one of the essential issues that affect the performances, whilst the balance between parallel and series cell of the battery pack always has an obvious effect. To enhance the working performance of the lithium-based power battery pack, a hybrid natural and forced active balancing control (HNFABC) strategy is proposed and adopted to the balancing circuit that is proposed in this work. These converters, which are advantageous in natural balancing and forced equalization, accelerate the balance speed of natural equilibrium in the final stage and protect the battery from being repeatedly charged and discharged. Simulation and experimental results show that HNFABC is not only simpler than other traditional balance control strategies but also faster in the equalization process. The idea of combining natural equilibrium and forced equilibrium can be inspired to be used in some related industries.

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“…In ESSs applications, they usually use SC terminal voltage as the feedback of controller to achieve real-time control for the SC. However, the SC terminal voltage would be affected by many factors [9]- [11]. To effectively evaluate the SCs terminal voltage and achieve the precise control for the SCs in the ESSs, it is crucial to establish an accurate model for the SC [11], [12].…”

Section: Introductionmentioning

confidence: 99%

Modeling of Supercapacitor Behavior With an Improved Two-Branch Equivalent Circuit

Zhang

Wang

et al. 2019

IEEE Access

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In this paper, an improved two-branch equivalent circuit model with a controlled current source is proposed to describe the real-time charge/discharge and self-discharge operating characteristics of a supercapacitor (SC). First, the self-discharge mechanism of the SC is investigated based on the two-branch model and experimental analyses at the different charge and discharge stages. Furthermore, the controlled current source is introduced into the two-branch model to reflect the self-discharge effect of the SC. On this basis, the recursive least square method is adapted to identify the model parameters. To improve the accuracy of the proposed model, the iterative optimization algorithm is also adapted to optimize the dynamic parameters of the controlled current source. Finally, the improved two-branch equivalent circuit model with the controlled current source is simulated. The simulation results are basically in accordance with the experimental results. The relative error of the proposed model is less than 0.7%. Compared with the conventional two-branch model, the proposed model can not only reflect the SC dynamic behavior during the charge/discharge phase but also better reflect the self-discharge effect of the SC. INDEX TERMS Supercapacitor, equivalent circuit model, self-discharge effect, controlled current source, parameters identification.

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Average Modeling and Performance Analysis of Voltage Sensorless Active Supercapacitor Balancer With Peak Current Protection

Cited by 25 publications

References 32 publications

Hybrid Internal Combustion Engine Based Auxiliary Power Unit

Hybrid Internal Combustion Engine Based Auxiliary Power Unit

Hybrid Natural and Forced Active Balancing Control of Battery Packs State of Charge Based on Partnership for a New Generation of Vehicles

Modeling of Supercapacitor Behavior With an Improved Two-Branch Equivalent Circuit

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