Bidirectional isolated vehice to grid (V2G) system: An optimized implementation and approach

2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2015-11-01 DOI:10.1109/APPEEC.2015.7380912

S. Taghizadeh, M. J. Hossain, Junwei Lu

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引用次数: 8

Abstract

This paper presents an optimized configuration of a bidirectional single-phase vehicle to grid (V2G) system which consisted of a DC/AC inverter and a full-bridge isolated DC/DC converter. An optimized current controller is designed for the DC/AC converter that improves the system operation in terms of reducing switching losses whereby increasing the efficiency of power-flow. It regulates the DC-link voltage based on the instantaneous electric vehicle (EV) battery voltage while provides the unity power factor during the operation of the system. A phase shift controller is also designed for the DC/DC converter that provides the bidirectional operation and control charging and discharging modes of the EVs battery in soft-switching mode. The proposed system is implemented and simulated using PSCAD software. From the simulation results, it is found that this optimized V2G system provides excellent performance in terms of operation in unity power factor, reducing switching stresses, losses and increasing overall efficiency.

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双向隔离车辆到电网(V2G)系统:一种优化的实现和方法

本文提出了一种由DC/AC逆变器和全桥隔离DC/DC变换器组成的双向单相车辆电网系统的优化结构。设计了一种优化的直流/交流变换器电流控制器，以减少开关损耗，从而提高功率流效率，从而改善系统运行。它根据电动汽车(EV)电池的瞬时电压调节直流链路电压，同时在系统运行过程中提供统一的功率因数。同时设计了相移控制器，实现双向操作，控制电动汽车电池在软开关模式下的充放电模式。采用PSCAD软件对该系统进行了仿真和实现。仿真结果表明，优化后的V2G系统在单位功率因数、降低开关应力和损耗、提高整体效率等方面具有优异的性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)

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