基于磁集成结构双向DC/DC变换器的飞轮储能系统
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摘要
针对微网中直流电源的不稳定性问题,提出一种新型基于磁集成结构双向DC/DC变换器的飞轮储能系统(FESS)。该系统中变换器利用磁集成技术将3个磁性元件(隔离变压器前、后谐振电感、变压器)集成到一个磁芯中。FESS除了能供给微网缺额电能,还能稳定直流母线电压,改善电能质量,可靠性更高。最后制作了一台10 kW,460~560 V输入、320 V输出的双向DC/DC变换器样机。实验分析表明该方案具有元件少、占地空间小等优点,还可有效降低电流纹波,且适用于大功率场合。
Aiming at the DC power supply instability in micro-grid,a flywheel energy storage system(FESS) is proposed,it adopts the DC/DC converter with integrated magnetic structure.The converter using magnetic integration technology integrates three inductors into a single core,which include the resonant inductors and an isolation transformer.Not only the FESS can supply the shortfall electricity of micro-grid,but also can stabilize the voltage of DC bus and can improve power quality and rebability.Finally a 10 kW prototype with 460~560 V input and 320 V output is built.Through experimental analysis,the program has the less components,smaller size etc,can reduce the current ripple effectively,and suitable for high power applications.
Aiming at the DC power supply instability in micro-grid,a flywheel energy storage system(FESS) is proposed,it adopts the DC/DC converter with integrated magnetic structure.The converter using magnetic integration technology integrates three inductors into a single core,which include the resonant inductors and an isolation transformer.Not only the FESS can supply the shortfall electricity of micro-grid,but also can stabilize the voltage of DC bus and can improve power quality and rebability.Finally a 10 kW prototype with 460~560 V input and 320 V output is built.Through experimental analysis,the program has the less components,smaller size etc,can reduce the current ripple effectively,and suitable for high power applications.
引文
[1]葛举生,王培红.新型飞轮储能技术及其应用展望[J].电力与能源,2012,33(2):181-184.
[2]Xu Song,Wang Haifei.Simulation and Analysis of Backto-back PWM Converter for Flywheel Energy Storage System[A].2012 15th International Conference on Electrical Machines and Systems(ICEMS)[C].2012:21-24.
[3]宋良全,孙佩石,苏建徽.飞轮储能系统用开关磁阻电机控制策略研究[J].电力电子技术,2013,47(9):5-57.
[4]夏向阳,孔祥霁,帅智康,等.基于磁集成结构DC/DC变换器的超级电容储能系统[J].电力自动化设备,2014,34(11):95-99.
[5]刘志军,虞晓阳,金科.一种新颖的磁集成自驱动倍流整流半桥三电平直流变换器[J].电工技术学报,2015,30(3):131-139.
[6]孟培培,吴新科,张军明,等.新型磁集成零电压零电流软开关全桥变流器[J].中国电机工程学报,2012,32(2):15-21.
[7]Kazuhiro Umetani,Takahiro Tera,Kazuhiro Shirakawa.Novel Magnetic Structure of Integrated Differential-mode and Common-mode Inductors to Suppress DC Saturation[A].The International Power Electronics Conference,Hiroshima[C].2014:304-311.
[8]刘文军,唐西胜,周龙.基于飞轮储能系统的直流UPS控制方法研究[J].电工电能新技术,2014,33(10):16-22.
[9]郭伟,王跃,李宁.永磁同步电机飞轮储能系统充放电控制策略[J].西安交通大学学报,2014,48(10):60-65.
[2]Xu Song,Wang Haifei.Simulation and Analysis of Backto-back PWM Converter for Flywheel Energy Storage System[A].2012 15th International Conference on Electrical Machines and Systems(ICEMS)[C].2012:21-24.
[3]宋良全,孙佩石,苏建徽.飞轮储能系统用开关磁阻电机控制策略研究[J].电力电子技术,2013,47(9):5-57.
[4]夏向阳,孔祥霁,帅智康,等.基于磁集成结构DC/DC变换器的超级电容储能系统[J].电力自动化设备,2014,34(11):95-99.
[5]刘志军,虞晓阳,金科.一种新颖的磁集成自驱动倍流整流半桥三电平直流变换器[J].电工技术学报,2015,30(3):131-139.
[6]孟培培,吴新科,张军明,等.新型磁集成零电压零电流软开关全桥变流器[J].中国电机工程学报,2012,32(2):15-21.
[7]Kazuhiro Umetani,Takahiro Tera,Kazuhiro Shirakawa.Novel Magnetic Structure of Integrated Differential-mode and Common-mode Inductors to Suppress DC Saturation[A].The International Power Electronics Conference,Hiroshima[C].2014:304-311.
[8]刘文军,唐西胜,周龙.基于飞轮储能系统的直流UPS控制方法研究[J].电工电能新技术,2014,33(10):16-22.
[9]郭伟,王跃,李宁.永磁同步电机飞轮储能系统充放电控制策略[J].西安交通大学学报,2014,48(10):60-65.