矿井瞬态传导骚扰非接触测量方法研究  

Non-contact Measuring Methods of Transient Conduction Disturbances in Mine

作　　者：冯德旺[1,2] 

机构地区：[1]福建农林大学计算机与信息学院,福建福州350002 [2]中国矿业大学机电与信息工程学院,北京100083

出　　处：《计量学报》2012年第4期351-354,共4页Acta Metrologica Sinica

基　　金：国家自然科学基金（50674093）;福建省教育厅资助项目（JAll098）

摘　　要：以瞬态脉冲电流作为短偶极子的激励源，运用电磁场理论建立短偶极子的瞬态辐射发射模型，确定短偶极子瞬态辐射场与其流过的脉冲电流密切相关，并通过地面实验建立直接接触测量值和非接触测量值之间的转换模型，提出井下瞬态传导骚扰的非接触测量方法。井下实验研究表明：非接触测量方法可以及时捕获开关操作瞬间电力电缆瞬态辐射的时域波形；距离电缆1cm处脉冲电流辐射的电场强度最高可达到4V／m，对井下电磁环境影响较大。Transient electromagnetic radiation model of short dipole, in which pulse current is used as its excitation source, can be built based on electromagnetic field theory. Moreover, the transient radiation field was closely bound up with the pulse current of power cable. The transformation model between direct contact measured value and non-contact measured value was built through modeling experiments, and the non-contact measuring method of transient conduction disturbance in mine was advanced. The experimental results in mines show that non-contact measurement method can catch the time domain waveforms of power cable transient radiation in the instant of switching operations. Electric-field strength of the electromagnetic radiation field caused by pulse current may reach up to 4 V/m, which has great effect on electromagnetic environment.

关 键 词：计量学 非接触测量 数据拟合 矿井 瞬态骚扰 

分 类 号：TB973[一般工业技术—计量学]