| 一种抗干扰变电站1/3倍频程噪声测量方法* |
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| 引用本文： | 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].应用声学,2022,41(6):929-937. |
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| 作者姓名： | 卢铃 蔡炜 曹浩 武帅兵 吴鸣 彭继文 |
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| 作者单位： | 国网湖南省电力有限公司电力科学研究院,国网湖南省电力有限公司娄底供电分公司 娄底,国网湖南省电力有限公司电力科学研究院 长沙 国网电力设施噪声与振动实验室 长沙,中科传启(苏州）科技有限公司,中国科学院噪声与振动重点实验室(声学研究所),国网湖南省电力有限公司电力科学研究院 长沙 国网电力设施噪声与振动实验室 长沙 |
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| 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。
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| 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 |
| 收稿时间： | 2021/8/29 0:00:00 |
| 修稿时间： | 2022/4/12 0:00:00 |
An anti-interference measurement method of 1/3 octave band noise in substation |
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| LU Ling,CAI Wei,CAO Hao,WU Shuaibin,WU Ming and PENG Jiwen.An anti-interference measurement method of 1/3 octave band noise in substation[J].Applied Acoustics,2022,41(6):929-937. |
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| Authors: | LU Ling CAI Wei CAO Hao WU Shuaibin WU Ming and PENG Jiwen |
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| Institution: | State Grid Hunan Electric Power Corporation Research Institute;Laboratory of Electric Equipment Noise and Vibration Research,State Grid Hunan Loudi Power Supply Company,State Grid Hunan Electric Power Corporation Research Institute,Sensed (Suzhou) Technology Co., Ltd,Key Laboratory of Noise and Vibration Research, Institute of Acoustics, Chinese Academy of Sciences;University of Chinese Academy of Sciences,State Grid Hunan Electric Power Corporation Research Institute |
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| Abstract: | 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. |
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| Keywords: | Substation Noise 1/3 octave band measurement Anti-interference Minimum control recursive average algorithm |
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