A bidirectional charging system with the capability to charge electric vehicles with low-voltage powered batteries

IF 3.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Electric Power Systems Research Pub Date : 2025-02-14 DOI:10.1016/j.epsr.2025.111501

Utsav Sharma, Bhim Singh

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引用次数: 0

Abstract

Due to the freedom to choose battery voltage levels in the absence of standardisation in the industry, electric two/three wheelers are available with distinct voltage rating batteries. In addition, interest in vehicle-to-grid (V2 G) operations has recently increased. Considering this, a bidirectional charger circuit is realised in this work, which operates effectively with a wide range of electric two/three wheelers. Moreover, the charger circuit is capable of bidirectional operation. Furthermore, the charger's operation with a wide range of batteries, high voltage step-down, and controlled ripple content in battery current and low switch count is achieved. This charger's topology uses a voltage source converter and a single-ended primary-inductance converter (SEPIC) with a modification. Since the modified SEPIC maintains the continuous current at the output, the battery current ripples are kept within 10 % of the battery charging current. The effectiveness of the designed charger is validated, and an experimental investigation is presented. A test bench set up in the laboratory achieves >90 % efficiency throughout the operation. Moreover, the charger's efficacy is validated under distinct conditions. Furthermore, the charger's behaviour during the V2 G function is conferred. Finally, the charger's circuit is assessed by comparing operational features.

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来源期刊

Electric Power Systems Research 工程技术-工程：电子与电气

CiteScore

7.50

自引率

17.90%

发文量

963

审稿时长

3.8 months

期刊介绍： Electric Power Systems Research is an international medium for the publication of original papers concerned with the generation, transmission, distribution and utilization of electrical energy. The journal aims at presenting important results of work in this field, whether in the form of applied research, development of new procedures or components, orginal application of existing knowledge or new designapproaches. The scope of Electric Power Systems Research is broad, encompassing all aspects of electric power systems. The following list of topics is not intended to be exhaustive, but rather to indicate topics that fall within the journal purview. • Generation techniques ranging from advances in conventional electromechanical methods, through nuclear power generation, to renewable energy generation. • Transmission, spanning the broad area from UHV (ac and dc) to network operation and protection, line routing and design. • Substation work: equipment design, protection and control systems. • Distribution techniques, equipment development, and smart grids. • The utilization area from energy efficiency to distributed load levelling techniques. • Systems studies including control techniques, planning, optimization methods, stability, security assessment and insulation coordination.