电力线阻波器、结合滤波器测试原理及方法

电力线阻波器、结合滤波器是电力线载波通道的重要组成部分,对其特性参数的准确测量是保证电力载波通信正常工作、保证电力系统正常运行的重要保障。本文分析了测试装置的特点,提出了一套实用的特性参数的计算公式。详细介绍了电力线阻波器、结合滤波器主要参数的测量原理。在硬件上,采用AD公司的AD8302为主测量芯片。由于利用了阻抗测量专用芯片,使得整个系统结构简单、抗干扰性能好、测量精度高、测量速度快。

The Test Principle and Method of Power Wave Trap Coil and Coupling Filter

Power wave trap coil and coupling filter is the important element in power line carrier systems.The accurate measurement for the characteristic parameter is security of the power line carrier communication and power system proper functioning.It analyzed the characteristic of test equipment in this article,and brought up a series of formula for characteristic parameter measurement.It introduced the key parameter measurement principle for the wave trap coil of power line and the combining wave filter in details.In aspect of hardware,it used AD8302 from AD company as main measurement chip.Thanks to the usage of impedance measurement chip,the whole system become simply structured,strongly anti-jamming,accurate measurement and rapidly measurement.