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和控制系统相连接的各类信号传输线,除了传输有效信号外,总会有外部干扰信号的侵入。本文讲述如何通过软件、硬件等抗干扰措施来减弱那些业已进入到控制系统信号线路内的外部干扰。包括信号的滤波,长线传输干扰的抑制,变频器高次谐波的抑制、信号的隔离以及在应用中出现的相关问题。
And the control system connected to all types of signal transmission lines, in addition to transmitting valid signals, there will always be the invasion of external interference signals. This article describes how to mitigate the effects of external interference that has entered the control system’s signal path through anti-jamming measures such as software and hardware. Including signal filtering, suppression of long-term transmission interference, suppression of high frequency harmonics in the inverter, isolation of signals, and related problems in application.