一种电力电子整流装置电磁干扰源测试的改进

Improvement of Electromagnetic Interference Source Test for a Power Electronic Rectifier

当前电磁干扰源测试系统不能及时断电,导致测试结果不准确。文中对电磁干扰源测试进行改进。对电力电子整流装置的电磁干扰源测试系统进行整体设计,在放大电路中加入THS4271DGK放大器,对分离区输出的共模信号和差模信号进行放大,提高测试系统的准确性。在层次化思想和模块化思想的基础上采用自上而下的设计方法对电力电子整流装置电磁干扰源测试系统的软件进行设计,减少重复的编程工作,提高系统的效率。实验结果表明,文中方法设计的测试系统准确性和效率更高。

The current electromagnetic interference source testing system has the problem of inaccurate test results and low system efficiency.In this paper,the electromagnetic interference source test has been improved.The overall design of the electromagnetic interference source test system of power electronic rectification device,adding THS4271 DGK amplifier in the amplifier circuit,the common mode signal and differential mode signal Zoom in to improve the accuracy of the test system.Based on the idea of layering and modularization,the software of electromagnetic interference source testing system of power electronic rectifying device was designed through top-down design method,which can reduce repeated programming work and improve the efficiency of the system.The experimental results show that the test system designed with this method has higher accuracy and efficiency.