摘要
270V航空高压直流电网是一种先进的飞机供电系统形式,但其母线中的低频纹波会对电网电压脉动产生影响,因此必须对该低频纹波进行滤除。提出采用航空直流有源滤波器(A PF)来抑制电网中的低频纹波,该方法补偿性能不受电网参数和负载影响,具有较好的前景。简要描述了直流A PF的几种拓扑,采用了一种可靠性高、损耗低的新型拓扑作为航空直流A PF的主电路,分析了其工作原理并详细介绍了航空直流A PF的控制策略;建立了控制系统模型,通过绘制伯德图对比了各参数下系统的性能,为控制优化提供了依据。仿真和实验结果验证了该航空直流A PF方案的可行性。
The 270V high-voltage DC grid is a kind of advance aircraft power systems. However, the low frequency ripple current in the main bus will affect on the grid voltage ripple so that it should be eliminated. The DC active filter is proposed to inhibit the low frequency ripple current in the DC grid. As its compensation performance is not influenced by system parameters and loads, the aeronautic DC-APF has a good prospect. Several topologies of DC-APF are described briefly. One with high reliability and low loss is adopted as the main circuit of the aeronautic DC-APF and its operation principle is analyzed. The control strategy of the aeronautic DC-APF is introduced in detail. The control system model is built and the system performances under different parameters are compared. The best control parameters are got with the analysis. Finally, simulation and experiment results verify the feasibility of the aeronautic DC-APF.
出处
《电工技术学报》
EI
CSCD
北大核心
2015年第20期151-158,共8页
Transactions of China Electrotechnical Society
基金
国家自然科学基金(51377078)
航空科学基金(2011-ZC52041)
江苏省"六大人才高峰"项目(JNHB-024)
台达环境与教育基金会<电力电子科教发展计划>(DREG2012002)资助项目
关键词
有源滤波器
飞机供电系统
拓扑
控制系统
直流电网
Active filters, aircraft power systems, topologies, control systems, DC grids
