【摘要】 提出了一种利用相关性原理测量高频电力阻波器的频率阻塞特性的方法,详细阐述和分析了利用一对同频正交参考信号对待检信号进行相位检测处理的过程,并总结出了一套实用的阻波器阻抗及电阻分量的计算公式,避免了繁琐的三角函数运算。同时,给出了本测试系统的一种硬件实现,就一种典型的宽带阻波器参数进行了仿真。仿真结果证实了该方法的有效性。以这种方法建立起来的测试系统具有精度较高、速度快、易实现和造价低的优点。更多还原

【Abstract】 This paper presents a new approach which can measure the frequency-impedance characteristic of the power line trap.It details the process of signal-phase-detecting by making use of a pair of orthogonal signals.A group of banausic formulas for calculating the impedance and resistive component is summarized to avoid the fussy triangle function calculation.A hardware implementation scheme of this measuring system is put forward as well.Simulation of a kind of wideband line trap with typical parameters is performed.The result of the simulation demonstrates the validity of the method.The testing system established with this method posesses the advantage of higher accuracy,high speed,being easy to realize and low cost.更多还原