摘要
为减小V2G和无线充电时系统网侧谐波污染,提高无线电能传输系统输出功率,提出了一种新型的V2G无线充电装置结构,将NPC三电平双向AC-DC变流器用于V2G无线充电装置中,取代了传统的两电平双向变流器。以网侧三相NPC三电平双向AC-DC变流器为基础,阐述了三电平双向变流器的工作原理、数学模型,采用了SVPWM。最后,采用MATLAB/simulink对三电平双向变流器进行仿真分析,在电动汽车充电和向电网馈电时,网侧电流THD分别为1.64%和0.95%,验证了NPC三电平双向AC-DC变流器在V2G无线充电装置中的可行性,相比传统两电平双向变流器具有更低的THD。
In order to reduce the harmonic pollution on the network side of the system during the interaction between V2 G and wireless charging,and improve the output power of the radio power transmission system,a new type of V2 G wireless charging device structure is proposed in this paper.The NPC three-level bidirectional AC-DC converter is used in the V2 G wireless charging device instead of the traditional two-level AC-DC converter.Level bi-directional converter.Based on the three-phase three-level NPC three-level bidirectional AC-DC converter on the grid side,the working principle and mathematical model of the three-level bidirectional AC-DC converter are expounded,and SVPWM is adopted.Finally,the three-level bidirectional converter is simulated and analyzed by using MATLAB/simulink.The THD of the network side is 1.64%and 0.95%respectively when the electric vehicle is charged and fed to the grid.The feasibility of NPC three-level bidirectional AC-DC converter in V2 G wireless charging device is verified,which is lower than the traditional two-level bidirectional converter.
作者
张佳瑶
钱祥忠
寸昆屹
徐文强
叶静
龙鑫辉
Zhang Jiayao;Qian Xiangzhong;Cun Kunyi;Xu Wenqiang;Ye Jing;Long Xinhui(College of Mathematics,Physics and Electronic Information Engineering,Wenzhou University,Wenzhou,325035)
出处
《电子测量技术》
2019年第14期17-22,共6页
Electronic Measurement Technology
基金
温州市科技局科技计划项目(G20170008)
温州大学研究生创新基金项目(201736,201824)资助
关键词
无线电能传输
谐波
三电平
双向变流器
空间矢量脉宽调制
wireless energy transmission
harmonics
three-level
bidirectional converter
space vector pulse width modulation
