The global adoption of Electric Vehicles(EVs)is on the rise due to their advanced features,with projections indicating they will soon dominate the private vehicle market.However,improper management of EV charging can ...The global adoption of Electric Vehicles(EVs)is on the rise due to their advanced features,with projections indicating they will soon dominate the private vehicle market.However,improper management of EV charging can lead to significant issues.This paper reviews the development of high-power,reliable charging solutions by examining the converter topologies used in rectifiers and converters that transfer electricity from the grid to EV batteries.It covers technical details,ongoing developments,and challenges related to these topologies and control strategies.The integration of rapid charging stations has introduced various Power Quality(PQ)issues,such as voltage fluctuations,harmonic distortion,and supra-harmonics,which are discussed in detail.The paper also highlights the benefits of controlled EV charging and discharging,including voltage and frequency regulation,reactive power compensation,and improved power quality.Efficient energy management and control strategies are crucial for optimizing EV battery charging within microgrids to meet increasing demand.Charging stations must adhere to specific converter topologies,control strategies,and industry standards to function correctly.The paper explores microgrid architectures and control strategies that integrate EVs,energy storage units(ESUs),and Renewable Energy Sources(RES)to enhance performance at charging points.It emphasizes the importance of various RES-connected architectures and the latest power converter topologies.Additionally,the paper provides a comparative analysis of microgrid-based charging station architectures,focusing on energy management,control strategies,and charging converter controls.The goal is to offer insights into future research directions in EV charging systems,including architectural considerations,control factors,and their respective advantages and disadvantages.展开更多
HIRFL-CSRe是兰州重离子加速器装置HIRFL(heavy ion research facility in Lanzhou)的后加速冷却储存环CSR(cooler storage ring)系统中的实验环部分,其中的二极铁磁铁对电源的性能提出了更高的要求。为满足此类磁铁电源高精度指标需求...HIRFL-CSRe是兰州重离子加速器装置HIRFL(heavy ion research facility in Lanzhou)的后加速冷却储存环CSR(cooler storage ring)系统中的实验环部分,其中的二极铁磁铁对电源的性能提出了更高的要求。为满足此类磁铁电源高精度指标需求并解决其技术难点,研制高精度直流电源装置。电源主回路采用多重化电路拓扑结构,控制部分采用多变量耦合的数字模拟混合控制策略,工艺结构采用功率变换器等关键部件标准化设计。实验结果表明,电源输出电流稳定度≤5×10^(-6)/8 h,电源的其他性能指标也达到了加速器物理设计的要求,并通过了验收测试。展开更多
文摘The global adoption of Electric Vehicles(EVs)is on the rise due to their advanced features,with projections indicating they will soon dominate the private vehicle market.However,improper management of EV charging can lead to significant issues.This paper reviews the development of high-power,reliable charging solutions by examining the converter topologies used in rectifiers and converters that transfer electricity from the grid to EV batteries.It covers technical details,ongoing developments,and challenges related to these topologies and control strategies.The integration of rapid charging stations has introduced various Power Quality(PQ)issues,such as voltage fluctuations,harmonic distortion,and supra-harmonics,which are discussed in detail.The paper also highlights the benefits of controlled EV charging and discharging,including voltage and frequency regulation,reactive power compensation,and improved power quality.Efficient energy management and control strategies are crucial for optimizing EV battery charging within microgrids to meet increasing demand.Charging stations must adhere to specific converter topologies,control strategies,and industry standards to function correctly.The paper explores microgrid architectures and control strategies that integrate EVs,energy storage units(ESUs),and Renewable Energy Sources(RES)to enhance performance at charging points.It emphasizes the importance of various RES-connected architectures and the latest power converter topologies.Additionally,the paper provides a comparative analysis of microgrid-based charging station architectures,focusing on energy management,control strategies,and charging converter controls.The goal is to offer insights into future research directions in EV charging systems,including architectural considerations,control factors,and their respective advantages and disadvantages.
文摘HIRFL-CSRe是兰州重离子加速器装置HIRFL(heavy ion research facility in Lanzhou)的后加速冷却储存环CSR(cooler storage ring)系统中的实验环部分,其中的二极铁磁铁对电源的性能提出了更高的要求。为满足此类磁铁电源高精度指标需求并解决其技术难点,研制高精度直流电源装置。电源主回路采用多重化电路拓扑结构,控制部分采用多变量耦合的数字模拟混合控制策略,工艺结构采用功率变换器等关键部件标准化设计。实验结果表明,电源输出电流稳定度≤5×10^(-6)/8 h,电源的其他性能指标也达到了加速器物理设计的要求,并通过了验收测试。
