汽车起重机操作引起的瞬态电磁骚扰特性研究
Research on the Characteristics of Transient Disturbance during
the Operation of Truck Crane
摘要 针对汽车起重机中起重机子系统操作过程中产生的瞬态电磁骚扰,分析了其时域特性,并将主要骚扰源的幅值、频率参数与ISO 7637-2 中的标准抗扰度测试波形进行了对比。结果表明:汽车起重机暂态电磁骚扰电压幅值偏低,但存在着严重的高频骚扰,将现有标准应用于汽车起重机的抗扰度测试时应进行相应的调整。
关键词 汽车起重机;电磁兼容;骚扰源;时域特性;抗扰度测试
Abstract The transient electromagnetic disturbance was measured during the operation
of the truck crane,and the time-domain characteristics of possible disturbance sources
were analyzed.The amplitude and frequency parameters of major disturbance sources
were compared with the standard immunity test pulses suggested by ISO 7637-2.The
results indicated that the transient disturbance amplitudes of track crane were lower
but severer in higher frequency range. So, corresponding adjustment should be
performed when adopting the existing standard for the electromagnetic immunity test
for the truck crane.
Keywords truck crane; EMC; disturbance source; time-domain characteristics; immunity
test
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