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首页> 外文期刊>Transportation Electrification, IEEE Transactions on >A Simple High-Performance Current Control Strategy for V2G Three-Phase Four-Leg Inverter With
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A Simple High-Performance Current Control Strategy for V2G Three-Phase Four-Leg Inverter With

机译：V2G三相四臂逆变器的简单高性能电流控制策略

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摘要

Electric vehicles (EVs) can behave as distributed energy storage devices for providing on-demand smart grid support service, that is, an emerging vehicle-to-grid (V2G) technology. A high-performance and easy-implementation current control strategy for V2G three-phase four-leg inverter with LCL filter is proposed. It consists of a deadbeat (DB) controller and a paralleled repetitive controller (RC). The DB controller is based on the weighted average inductor current (WAIC) scheme, which simplifies the third-order LCL filter to be an equivalent first-order L filter. The stability of the DB-controlled inverter with the unmodeled system time delay is analyzed. The DB controller is of very fast response and easy implementation but is not immune to system time delay and various uncertainties. To overcome the disadvantages, a plug-in RC is added to reinforce the DB controller to remove harmonic distortion from the feed-in current in the presence of parameter uncertainties. A lab prototype of 10-kW grid-connected three-phase four-leg inverter has been built up to validate the proposed current control strategy. The simulations and experiments are provided to demonstrate the validity of the proposed control strategy.
机译：电动汽车（EV）可以充当分布式能量存储设备，以提供按需智能电网支持服务，即新兴的车辆到电网（V2G）技术。提出了一种具有LCL滤波器的V2G三相四桥臂逆变器的高性能，易于实现的电流控制策略。它由一个无差拍（DB）控制器和一个并行重复控制器（RC）组成。 DB控制器基于加权平均电感器电流（WAIC）方案，该方案将三阶LCL滤波器简化为等效的一阶L滤波器。分析了具有未建模系统时间延迟的DB控制逆变器的稳定性。 DB控制器响应速度非常快，易于实现，但不能避免系统时间延迟和各种不确定性。为克服这些缺点，在存在参数不确定性的情况下，添加了插件RC来增强DB控制器以消除馈入电流中的谐波失真。已经建立了一个10 kW并网三相四桥臂逆变器的实验室原型，以验证所提出的电流控制策略。提供的仿真和实验证明了所提出控制策略的有效性。

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