用于航空电源有源滤波器的基波电流检测

电流基波分量和无功功率的实时检测是航空电源有源滤波器的关键技术之一.以单相系统为例,利用d,q变,换算法的向量分解本质,研究了航空电源有源滤波器中基波电流的检测原理和方法,通过仿真和实验验证了它的可行性;考虑到航空电源的特殊情况,提出了一种适应360～720Hz宽变频输入的数字检测方法,对其进行了软件设计和实验验证,其结果表明,所采用的单相基波电流检测方案适用于变频场合的航空电游系统.

Fundamental Current's Detection of Active Power Filter in Aeronautics

The fundamental current's detection which can detect the fundamental current and reactive power is one of the key technologies in Active Power Filter(APF).This paper discusses the theory and method of detection by taking the single phase system as an example.A d,q based detecting method is verified through simulation and experimentation.In order to satisfy the frequency changed situation,a digital filter method is introduced.The experimental results verify the real-time and accuracy of the proposed detecting method.