摘要
介绍了变频调速系统的噪声源及噪声危害,从构成干扰的三要素着手分析了噪声的干扰和抗干扰途径,并在此基础上介绍了一些具体的抗干扰措施:减少和抑制噪声源;切断干扰对系统的耦合通道;减少系统对噪声的敏感性。指出了抗干扰措施要根据干扰源和干扰发生的失效机理来具体选用。
Introduction was made to the noise source of frequency control systems and noise hazards. Analysis was made to noise interference and anti-interference approaches from three factors formed the interference, and on the basis of this, introduction was made to some concrete anti-interference measures, such as reducing and restraining noise source, cutting off coupling path of interference to the system and reducing sensitivity of the system to the noise. It is pointed that anti-interference measures should be selected actually according to interference source and failure mechanism of interference occurred.
出处
《电工电气》
2009年第10期41-44,共4页
Electrotechnics Electric
基金
华北科技学院校内科研基金项目(B06012)
关键词
变频调速系统
干扰抑制
噪声源
抗干扰
frequency control system
interference suppression
noise source
anti-interference
