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A G2V/V2G Off-Board Fast Charger for Charging of Lithium-ion Based Electric Vehicles

機(jī)譯：用于鋰離子電動汽車充電的G2V / V2G板外快速充電器

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摘要

This paper proposes a bidirectional three phase off-board charging topology for charging of electric vehicles (EVs). The proposed off-board EV charger has innovative modes for the charging control of lithium-ion battery with respect to SOC. All these modes are switched on the basis of change in SOC. According to these modes, the reference charging current is adjusted. The proposed charging topology is composed of three phase AC-DC converter and a bidirectional DC-DC converter, which works as buck converter during G2V operation and it works as a boost converter during V2G operation. The AC-DC converter is controlled by comprehensive control technique. Compared to the traditional charging control technique, this topology controls the charging reference according to maximum charging acceptance characteristics of lithium-ion battery. The proposed charging control is validated by MATLAB/Simulink, operating through grid to vehicle including all charging control modes for lithium-ion battery and vehicle to grid control.
機(jī)譯：本文提出了一種雙向三相車外充電拓?fù)?，用于電動汽車（EV）的充電。擬議的車載EV充電器具有創(chuàng)新的模式，可針對SOC對鋰離子電池進(jìn)行充電控制。所有這些模式都根據(jù)SOC的變化進(jìn)行切換。根據(jù)這些模式，可以調(diào)節(jié)參考充電電流。所提出的充電拓?fù)溆扇郃C-DC轉(zhuǎn)換器和雙向DC-DC轉(zhuǎn)換器組成，該雙向DC-DC轉(zhuǎn)換器在G2V操作期間充當(dāng)降壓轉(zhuǎn)換器，在V2G操作期間充當(dāng)升壓轉(zhuǎn)換器。 AC-DC轉(zhuǎn)換器通過綜合控制技術(shù)進(jìn)行控制。與傳統(tǒng)的充電控制技術(shù)相比，此拓?fù)涓鶕?jù)鋰離子電池的最大充電接受特性來控制充電參考。所建議的充電控制已通過MATLAB / Simulink驗(yàn)證，可通過并網(wǎng)運(yùn)行至車輛，包括鋰離子電池的所有充電控制模式以及車至電網(wǎng)控制。

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