| 卢铃,蔡炜,曹浩,武帅兵,吴鸣,彭继文.一种抗干扰变电站1/3倍频程噪声测量方法*[J].,2022,41(6):929-937 |
| 一种抗干扰变电站1/3倍频程噪声测量方法* |
| An anti-interference measurement method of 1/3 octave band noise in substation |
| 投稿时间：2021-08-29 修订日期：2022-04-12 |
| 中文摘要: |
| 针对变电站噪声测量容易受外界干扰的问题，提出了一种抗干扰变电站噪声测量系统实现方法，利用最小值控制递归平均算法实时估计每个时频点变电站噪声存在概率，再综合成每个1/3倍频程中外界干扰信号存在概率；对干扰信号存在的1/3倍频程，不进行1/3倍频程噪声更新，从而避免外界干扰信号对变电站噪声测量的影响。仿真结果证明，该方法可以有效减小瞬态干扰对变电站噪声的影响。 |
| 英文摘要: |
| An implementation method of anti-interference substation noise measurement system is proposed to avoid being affected by external interference. The minimum control recursive average algorithm is used to estimate the existence probability of substation noise at each frequency bin in real time., and then integrate it into 1/3 octave band. For the 1/3 octave band where the interference signal exists, no noise update is performed, so as to avoid the influence of interference signal on the noise measurement. The simulation results prove that this method can effectively reduce the impact of transient interference on substation noise. |
| DOI：10.11684/j.issn.1000-310X.2022.06.010 |
| 中文关键词: 变电站 噪声 1/3倍频程测量 抗干扰 最小值控制递归平均算法 |
| 英文关键词: Substation Noise 1/3 octave band measurement Anti-interference Minimum control recursive average algorithm |
| 基金项目: |
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