A battery integrated three-port bidirectional charger/discharger for light electric vehicles with G2V and V2G power flow capability,International Journal of Circuit Theory and Applications

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A battery integrated three-port bidirectional charger/discharger for light electric vehicles with G2V and V2G power flow capability
International Journal of Circuit Theory and Applications ( IF 1.8 ) Pub Date : 2021-05-16 , DOI: 10.1002/cta.3044
Deepak Kumar ₁ , Anmol Ratna Saxena ₁

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In this paper, a non-isolated battery integrated three-port bidirectional dc-dc converter (BIBTPC) is proposed and analyzed for interfacing light electric vehicles (LEVs) with solar photovoltaic (SPV)-fed low voltage dc distribution system (LVDDS). Depending upon the power generation, the converter can be controlled to operate in grid-to-vehicle (G2V) or vehicle-to-grid (V2G) arrangement. BIBTPC can implement maximum power point tracking (MPPT), simultaneously regulating the dc bus voltage of LVDDS. It also has an inherent feature of pulse charging and pulse discharging of the battery which improves its charging/discharging rate. The converter operation in all the possible modes is elucidated, and steady-state analysis is performed to establish the key performance features. The guidelines for the inductor and capacitor design of the converter are also presented. The control strategy to ensure MPPT simultaneously managing the power flow among SPV, LVDDS, and LEV battery is developed and implemented. The theoretical predictions are validated experimentally on the laboratory prototype of the converter. These results are found to be in close agreement with each other.

中文翻译：

一种具有G2V和V2G潮流能力的轻型电动汽车电池集成三端口双向充放电器

在本文中，提出并分析了一种非隔离式电池集成三端口双向 DC-DC 转换器 (BIBTPC)，用于将轻型电动汽车 (LEV) 与太阳能光伏 (SPV) 供电的低压直流配电系统 (LVDDS) 连接起来。根据发电量，可以控制转换器以电网对车辆 (G2V) 或车辆对电网 (V2G) 布置运行。BIBTPC 可以实现最大功率点跟踪 (MPPT)，同时调节 LVDDS 的直流总线电压。它还具有电池的脉冲充电和脉冲放电的固有特性，提高了其充电/放电速率。阐明了所有可能模式下的转换器操作，并执行稳态分析以建立关键性能特征。还介绍了转换器的电感器和电容器设计指南。开发并实施了确保 MPPT 同时管理 SPV、LVDDS 和 LEV 电池之间功率流的控制策略。理论预测在转换器的实验室原型上得到了实验验证。发现这些结果彼此非常一致。

更新日期：2021-05-16

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