960 H. Zheng et al. 1 3 ltering algorithms, such as low-pass lter (LPF), wavelet decomposition, wavelet packet decomposition, and smooth lter function [8–10]. The LPF was used, and the voltage and current double closed-loop PI control was proposed in [11]. The
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Taking into account the advantages and disadvantages of the above-mentioned equalization methods, this paper proposes a layered bidirectional equalizer based on a novel resonant voltage balance converter (LBEBVBC), as shown in Figure 2.Under the same ...
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In energy storage systems, a voltage equalizer is always needed. The voltage equalizers often include a DC-DC converter. In this paper, the DC-DC …
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A non-isolated bidirectional DC–DC converter is presented in this study. The configuration of the proposed converter is simple. ... Power switches current and voltage wave forms are illustrated in Figs. 12b and …
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This paper proposes a bidirectional DC-DC converter with rapid energy conversion as the main circuit architecture for the energy conversion between the DC bus and the battery. The proposed …
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The current inner loop modeling method during inverter operation is the same as that under rectifier operation, so the QPR controller can adopt the same control parameters. 3.2 Parameter Tuning of Voltage Outer Loop Controller Based on Power BalanceG(s) is the transfer function from the control of single-phase H4 bridge rectifier to …
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Ordinary modular energy storage systems require cell- and module-level equalizers, in addition to a main bidirectional converter, increasing the system complexity and cost.
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Bidirectional dc–dc converter (BDC) is an integral part of energy storage interface, where high efficiency, high voltage transfer ratio and small input ripple current are essential for ...
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In this paper, a novel high-efficiency bidirectional isolated DC–DC converter that can be applied to an energy storage system for battery charging and discharging is proposed. By integrating a coupled inductor and switched-capacitor voltage doubler, the proposed converter can achieve isolation and bidirectional power flow. The …
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In this paper, a bidirectional converter with multi-mode control strategies is proposed for a battery energy storage system (BESS). This proposed converter, which is composed of a half-bridge-type ...
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The goal of this study is to create a bidirectional converter that will enable efficient power transfer among various energy storage elements in a hybrid energy storage system. …
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4 · Oh et al. present a bidirectional push–pull/H-bridge DC/DC converter for a low-voltage energy storage system, which is composed of the push–pull converter, the …
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The steady and transient performance of a bidirectional DC–DC converter (BDC) is the key to regulating bus voltage and maintaining power balance in a …
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The evaluation indexes of bidirectional DC–DC converter for HESS include voltage conversion ratio (step-up ratio, step-down ratio), current ripple of power …
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Abstract: In this article, a novel bidirectional dc–dc converter (BDC) consisting of an active switched-inductor (A-SL) cell, a zero current ripple cell and an auxiliary capacitor cell is …
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Abstract: For dc microgrid energy interconnection, this article proposes a multiport bidirectional converter, leveraging three shared half-bridges. This converter achieves …
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In recent years, there has been a significant growth in the need for reliable and efficient energy storage systems due to the growing usage of renewable energy sources and the imperative need to maintain a stable power grid. Hybrid Energy Storage Systems (HESS) have emerged in response to this demand as a potential remedy for the issues brought …
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This article proposes a novel bidirectional isolated dc–dc converter with high voltage gain and wide input voltage, which can be applied to bidirectional power conversion systems. The proposed topology is composed of a bidirectional buck-boost converter and a forward-flyback converter; it has the advantage of higher voltage gain …
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The advantages of using three-level DC–DC converter over two-level DC–DC converter in a DC-MLCS are as follows: ability to access both DC buses for power balancing, reduced voltage stress on …
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