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This paper proposes a discharging scenario for a battery power bank configured by battery power modules (BPMs) connected in series. Each BPM in the power bank is formed by a lithium-ion battery pack with an associated buck-boost converter. Charge equalization among batteries can be executed by controlling the battery currents in accordance with the real-time estimated state-of-charges (SOCs) by the...
This paper presents the real and reactive power flow control with cascaded multilevel converter (CMC) in the grid. A distribution static compensator (DSTATCOM) is connected at the point of common coupling (PCC) supported from CMC via cascaded transformers. Instantaneous symmetrical component scheme is used to generate the reference current for the compensator. In multilevel inverter the ramp comparison...
This paper focuses on battery charging/discharging through a converter tied to the DC link. PV and wind energy power system are used as sources. This work aims to develop a model that depends on the state of charge of the battery to decide its state of operation. The filter and converter design has been carried out and simulation results have been reported. The paper looks into the aspects of system...
This paper proposes a novel modular dual-active-bridge (DAB) dc-dc converter for spilt-battery energy storage system (BESS) in medium-voltage dc (MVDC) grid application. Compared to modular cascaded DAB converter, the proposed topology has current-fed DAB characteristics, with directly dc current control to achieve dc fault ride-through capability. In addition, the proposed converter exhibits favorite...
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