摘要
在新能源电动汽车、风力发电和光伏发电并网系统中,需要采用非隔离高增益直流变换器。传统Boost变换器的电压增益和效率受开关器件、电容和电感等影响,并且占空比不能大,电压增益较低。在传统Boost变换器的基础上,利用耦合电感的特性,将其应用在传统Boost变换器拓扑上,通过改变耦合电感匝比来提升电压。首先分析了耦合电感高增益直流变换器在考虑漏感和不考虑漏感情况下的工作原理以及性能分析,然后进行仿真分析,仿真结果验证了理论分析的正确性。
In the new energy electric vehicles, wind power and photovoltaic power generation grid-connected systems, the non-isolated high-gain DC converter is needed. The voltage gain and efficiency of the traditional boost converter are affected by the switching devices, capacitors, inductors, etc., and the traditional boost cannot operate without the large duty cycle, and its voltage gain is low. Based on the traditional boost converter, the coupling inductance is applied to the traditional boost converter topology, where the voltage is increased by changing the turn ratio of the coupling inductance. The working principle and performance of the high-gain DC converter with the coupled inductance is analyzed with the leakage inductance and without the leakage inductance, and then the simulation analysis is carried out. The simulation results verify the correctness of the theoretical analysis.
作者
汪青
李卫龙
周尚武
WANG Qing;LI Wei-long;ZHOU Shang-wu(Anhui Xinhua University Hefei 230001;Anhui coal science research institute Hefei 230001)
出处
《佳木斯大学学报（自然科学版）》
CAS
2018年第5期704-708,共5页
Journal of Jiamusi University：Natural Science Edition
基金
安徽省教育厅高校自然科学研究项目(KJ2017A618)
关键词
耦合电感
高增益
新能源
漏感
Coupling inductance
High gain
New energy
Leakage inductance
