A Compact 17.6 kW Single-/22 kW Three-Phase Compatible EV Charger: Analysis of Active Power Decoupling, Wide Voltage Range Operation

IF 7.2 1区工程技术 Q1 AUTOMATION & CONTROL SYSTEMS IEEE Transactions on Industrial Electronics Pub Date : 2025-01-14 DOI:10.1109/TIE.2024.3525104

Jaeyeon Lee;Tat-Thang LE;Heonhee Kim;Sewan Choi

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Abstract

In this article, a single- and three-phase compatible battery charger with active power decoupling (APD) is proposed. The two-stage system consists of CLLC resonant converter for dc–dc converter and integration of two-level inverter (three-phase) and three-phase interleaved totem-pole inverter (single-phase) for ac–dc converter. Through the simple relay operation, the ac–dc converter switches the operations according to the grid phase. By applying the active power decoupling technique to reduce the used capacitance and substitute to film capacitor, it solves the problems of lifespan and stability caused by using electrolytic capacitors. The ac–dc converter variably control the dc link voltage to maximize the battery voltage range of the DCX region with good efficiency characteristics for the dc–dc converter. In addition, the CLLC resonant converter performs the seamless control combining with frequency control and phase-shift control by using only one PI controller. A 17.6/22 kW(1Ø/3Ø), 2.18 kW/L prototype is implemented to validate the proposed concept and demonstrated 95.77% and 94.98% peak efficiency for three- and single-phase, respectively.

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紧凑型17.6 kW单/22 kW三相兼容电动汽车充电器：有功功率解耦分析，宽电压范围运行

本文提出了一种具有有源功率去耦（APD）的单、三相兼容电池充电器。两级系统由用于dc-dc变换器的CLLC谐振变换器和用于ac-dc变换器的两电平逆变器（三相）和三相交错图腾极逆变器（单相）集成组成。通过简单的继电器操作，交直流变流器根据电网相位切换操作。采用有源功率去耦技术，减少使用电容，替代薄膜电容器，解决了电解电容器使用寿命和稳定性的问题。交直流变换器通过对直流环节电压的可变控制，使DCX区域的电池电压范围最大化，具有良好的直流变换器效率特性。此外，CLLC谐振变换器仅使用一个PI控制器即可实现频率控制和相移控制的无缝控制。一个17.6/22 kW（1Ø/3Ø）， 2.18 kW/L的原型被实现来验证所提出的概念，并分别证明了三相和单相的峰值效率分别为95.77%和94.98%。

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来源期刊

IEEE Transactions on Industrial Electronics 工程技术-工程：电子与电气

CiteScore

16.80

自引率

9.10%

发文量

1396

审稿时长

6.3 months

期刊介绍： Journal Name: IEEE Transactions on Industrial Electronics Publication Frequency: Monthly Scope: The scope of IEEE Transactions on Industrial Electronics encompasses the following areas: Applications of electronics, controls, and communications in industrial and manufacturing systems and processes. Power electronics and drive control techniques. System control and signal processing. Fault detection and diagnosis. Power systems. Instrumentation, measurement, and testing. Modeling and simulation. Motion control. Robotics. Sensors and actuators. Implementation of neural networks, fuzzy logic, and artificial intelligence in industrial systems. Factory automation. Communication and computer networks.