3.5: Two-element circuits and RLC resonators
Two-element circuits and uncoupled RLC resonators. RLC resonators typically consist of a resistor R, inductor L, and capacitor C connected in series or parallel, as illustrated in Figure 3.5.1. RLC resonators are of interest because they behave much like other electromagnetic systems that store both electric and magnetic energy, which slowly ...
A Control Design Technology of Isolated Bidirectional LLC …
bidirectional in-verter to allow energy storage in the system to improve the safety, stability, and power quality of the microgrid. In the proposed circuit structure, we …
Interleaved High-Conversion-Ratio Bidirectional DC–DC Converter for Distributed Energy-Storage Systems—Circuit …
A specific design of the driving circuit that facilitates actual applications is described. A 1-kW prototype converter, employing a hybrid configuration of SiC and Si mosfets, was constructed to verify the theoretical analysis, and achieved an optimal compromise between conversion efficiency and low cost.
Active voltage balancing circuit using single switched-capacitor and series LC resonant energy …
1 ELECTRONICS LETTERS 30th September 2020 Vol. 56 No. 20 pp. 1036–1039 Active voltage balancing circuit using single switched-capacitor and series LC resonant energy carrier A K M Ahasan Habib ...
New control strategy for bidirectional LLC resonant converter in energy storage …
This paper proposes a topology which is based on the traditional LLC resonant converter and has a symmetrical circuit structure to achieve the bidirectional power flow capability. With the advantage of ZVS and ZCS, reverse energy is eliminated, so high efficiency is achieved of the proposed topology, which can be above 97% at full load. In order to be …
A review: Energy storage system and balancing circuits for electric vehicle application …
The study will help the researcher improve the high efficient energy storage system and balancing circuit that is highly applicable to the electric vehicle. REFERENCES 1 Azad, F.S., et al.: Active cell balancing of Li-ion batteries using single capacitor & single LC series resonant circuit .
Development of method for frequency regulation of output current in high-voltage transformerless resonant chargers of capacitive energy storage ...
frequency regulation of the output current in high-voltage transformerless resonant charging devices of capacitive energy storage ... and capacitance of the resonant circuit connected in series ...
New control strategy for bidirectional LLC resonant converter in …
This paper proposes a topology which is based on the traditional LLC resonant converter and has a symmetrical circuit structure to achieve the bidirectional power flow capability. …
Voltage equalization circuit for retired batteries for energy storage …
Abstract. In this paper, an active equalization circuit based on resonant converter is presented. This equalization circuit has been proposed to equalize the direct cell-to-cell voltage in a ...
A Series Resonant Energy Storage Cell Voltage Balancing Circuit
A novel cell voltage equalizer using a series LC resonant converter is proposed for series-connected energy storage devices, namely, battery or super (or ultra)-capacitor cells. …
Investigation of the Circuit Tolerances Influence in Multiphase Resonant Converters for Energy Storage …
Key-Words: - Circuit Tolerances, Energy Storage, Multiphase Resonant Converters. 1 Introduction The soft switching operation and the high overall efficiency of the resonant DC/DC converters makes them very useful for implementation in energy providing either
A Series Resonant Energy Storage Cell Voltage Balancing Circuit
The comparative study has shown the different key factors of market available electric vehicles, different types of energy storage systems, and voltage …
A series resonant circuit for voltage equalization of series connected energy storage …
In this paper, a novel cell voltage equalizer using a series LC resonant converter topology is proposed for a series connection of energy storage devices, namely battery, or supercapacitor cells. The objective of the target project is to design an active voltage equalization circuit that is low cost, small in size and achieves a short voltage …
A.K.M. Ahasan Habib, S.M.A. Motakabber, M.I. Ibrahimy and …
balancing circuit schematic diagram is shown in Fig. 1. This balancing circuit consists of battery cells, MOSFET switches, single switches-capacitor, series resonant energy carrier, cell monitoring integrated circuit (IC), and master controller. In the proposed cell 1
LC circuit
An LC circuit, also called a resonant circuit, tank circuit, or tuned circuit, is an electric circuit consisting of an inductor, represented by the letter L, and a capacitor, represented by the letter C, connected together. The circuit can act as an electrical resonator, an electrical analogue of a tuning fork, storing energy oscillating at the ...
A Series Resonant Energy Storage Cell Voltage Balancing Circuit
Compared to the state-of-the-art solutions, the proposed series LC resonant circuit eliminates the complexity of multiwinding transformers, and it can balance series-connected energy storage devices in a short time by transporting energy successively …
Zero Current Switching Switched-Capacitors Balancing Circuit for Energy Storage Cell Equalization and Its Associated Hybrid Circuit …
balancing circuit is proposed to realize zero-current switching (ZCS) similar to quasi-resonant [24,25] during the switched-capacitor mode and has been proven to further reduce energy loss [24–29]. Different states of EVs, such as the drive state, brake state, and park state, may have different
A series resonant circuit for voltage equalization of series …
In this paper, a novel cell voltage equalizer using a series LC resonant converter topology is proposed for a series connection of energy storage devices, namel.
A Series Resonant Energy Storage Cell Voltage Balancing Circuit
Fig. 11. Measured waveforms of the switch gate to source voltage (top/red curve; 10 V/div), drain to source voltage (middle/blue curve; 2 V/div), and current (bottom/purple curve; 1 A/div); Timescale = 5 μs/div. - "A Series Resonant …
Design of a Bidirectional CLLC Resonant DC-DC Converter for Energy Storage …
This paper presents a bidirectional full-bridge CLLC resonant DC-DC converter designed for energy storage systems. The converter architecture comprises two sets of full-bridge CLLC resonant converters, configured in a single input double output arrangement. The frequency modulation control is employed to regulate power flow between the battery storage …
Lithium-ion battery state-of-charge balancing circuit using single …
In this balancing circuit, a series LC (resonant tank) is used as an energy carrier connected with the bus connection. All battery cells (n number) and MOSFET …
A Series Resonant Energy Storage Cell Voltage Balancing Circuit
[40] Y. Yu, R. Saasaa and W. Eberle, "A series resonant circuit for voltage [20] Y. Lee and G. Cheng, "Quasi-Resonant Zero-Current-Switching equalization of series connected energy storage devices," in Proc
Voltage equalization circuit for retired batteries for energy storage …
Two Li-ion battery based equalization results shown in Fig. 3 (a) on the relaxation mode. Initially, each cell has 3.958 V and 3.712 V, where the voltage difference is 246 mV. To execute the equalization process, theoretically, cell balance will in 3.835 V but the equalization circuit achieved 0 mV after 83 min.
Resonant Circuits and Soft Switching
1. Resonant circuits. Resonant circuits are used in power supply circuits for one or more of the following purposes: high frequency output of voltage or current, switching loss reduction, andswitching noise reduction. This application note discusses resonant circuitsprimarily designed for high-frequency AC generation.
A Series Resonant Energy Storage Cell Voltage Balancing Circuit
A novel cell voltage equalizer using a series LC resonant converter is proposed for series-connected energy storage devices, namely, battery or super (or ultra)-capacitor cells. The proposed circuit is an active voltage equalization circuit for energy storage devices that is low cost, small in size, and equalizes the voltages quickly. Compared to the state-of-the …
Lithium-ion battery state-of-charge balancing circuit using single resonant …
The series of energy storage devices, namely battery, super/ultra-capacitor string voltage balancing circuit, based on a single LC energy converter, is presented in this paper. It transfers the excess energy directly from …
