强流脉冲下智能建筑弱电线缆谐振抑制方法  

Harmonance Suppression Method of Weak Current Cable in Intelligent Building under Strong Current Pulse

作　　者：汪梦 王贵春[2] WANG Meng;WANG Gui-chun(Chongqing Metropolitan College of Science and Technology,Chongqing 402160,China;Chongqing University,Chongqing 400044,China)

机构地区：[1]重庆城市科技学院,重庆402160 [2]重庆大学,重庆400044

出　　处：《计算机仿真》2024年第6期322-326,共5页Computer Simulation

摘　　要：当智能建筑弱电线缆发生谐振时,谐振过程中会出现较大的传输性能损耗,如信号衰减、干扰增加等,导致对弱电线缆谐振抑制难度加大。为此,提出强流脉冲环境智能建筑弱电线缆谐振抑制仿真。采用分布参数模型分析智能建筑弱电线缆谐振,计算弱电线缆损耗。构建强流脉冲电磁场与弱电线缆耦合模型,通过电荷散射场项得到电磁场对线缆传输时的电容状态。通过宽频域相位补偿方法,计算相位补偿,实现谐振抑制。通过实验证明,所提方法能够较好的抑制智能建筑弱电线缆谐振,波形总畸变率也是保持在0.05%以下,提高电能质量,保证设备正常工作和运行稳定。When weak wire cables in intelligent buildings resonate,there is a significant loss in transmission,such as signal attenuation and increased interference,increasing the difficulty in suppressing resonance in weak power cables.To address this issue,this paper proposed a simulation for suppressing the resonance of weak wire cables in intelligent buildings under high current pulse environment.Firstly,a distributed parameter model was used to analyze the resonance of weak wire cables in intelligent buildings,followed by the calculation of the loss of weak wire cables.Next,a coupling model between high current pulse electromagnetic field and weak wire cables was constructed.More⁃over,the capacitor condition of the electromagnetic field on the cable transmission was obtained through the charge scattering field term.Finally,the wide-frequency domain phase compensation method was adopted to calculate the phase compensation,thereby achieving resonance suppression.Experiment results prove that the proposed method can effectively suppress the resonance of weak wire cables in intelligent buildings.Meanwhile,the total waveform distortion rate stays below 0.05%.Therefore,this method can improve the power quality and ensure the normal and stable operation of equipment.

关 键 词：强流脉冲 智能建筑 弱电线缆 谐振抑制 电荷密度 

分 类 号：TN972[电子电信—信号与信息处理]