| 220kV变电站噪声源监测及评价方法探讨 |
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| 引用本文： | 李世平,印红玲,帅星,周明镜,娄刚强,梁金凤.220kV变电站噪声源监测及评价方法探讨[J].成都信息工程学院学报,2014,29(5):552-557. |
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| 作者姓名： | 李世平 印红玲 帅星 周明镜 娄刚强 梁金凤 |
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| 作者单位： | 1. 成都信息工程学院资源环境学院,四川成都,610225
2. 四川省环境工程有限公司,四川成都,610041 |
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| 摘 要： | 针对目前变电站主要噪声源噪声特性及评价方法研究不充分的问题,对成都2个220k V的变电站的主要噪声源及厂界噪声进行十个频段的噪声监测,结果表明该噪声源属于稳态声源,呈中低频特性。主要噪声源中,变压器的风冷式散热方式对其本体噪声的中高频段有贡献。电抗器的高频噪声小,高压进出线的噪声与其负载电压相关。从变电站厂界监测结果来看,低频噪声污染较严重,采用目前中国以A计权网络为基础的评价方法并不合适。建议采用声级计计权法或低频A计权网络对厂界噪声进行评价,评价结果比A计权网络算法高约3~6d B和2~10d B,更符合人体主观感受。
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| 关 键 词： | 环境科学 环境监测 变电站 低频噪声 噪声评价 |
Monitoring of the Noise of 220kV Electronic Power Transformer Station and Revision of its Evaluation Method |
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| LI Shi-ping,YIN Hong-ling,SHUAI Xing,ZHOU Ming-jing,LOU Gang-qiang,LIANG Jin-feng.Monitoring of the Noise of 220kV Electronic Power Transformer Station and Revision of its Evaluation Method[J].Journal of Chengdu University of Information Technology,2014,29(5):552-557. |
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| Authors: | LI Shi-ping YIN Hong-ling SHUAI Xing ZHOU Ming-jing LOU Gang-qiang LIANG Jin-feng |
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| Institution: | LI Shi-ping,YIN Hong-ling,SHUAI Xing,ZHOU Ming-jing,LOU Gang-qiang,LIANG Jin-feng( 1.College of Resources and Environment, Chengdu University of Information Technology, Chengdu 610025, China; 2.Sichuan Environmental Engineering Co., Ltd, Chengdu 610041,China) |
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| Abstract: | In order to address the issue of insufficient study on the characteristics and evaluation method of noise generated from transformer substations,a project of monitoring ten frequencies of the noise from two 220kV electronic power transformer substations in Chengdu was conducted.The results show that the noise is steady and of low-frequency overall.Among all the major noise sources,the transformer air cooling contributes to the mid and high frequency noises.The high-frequency noise generated by the reactor is not significant.And the noise generated by high-voltage inlet and outlet lines is related to the loaded voltage.The data from around the borders of the plants indicates that the low frequency noise pollution is more serious and the Aweighted network-based evaluation method is not appropriate if used in these sites.It is suggested that either a noise measuring instrument weighted evaluation method or low frequency A weighted network method should be used instead.The evaluation results by using these two methods are about 3-6dB and 2- 10dB higher than A-weighted network method and are more consistent with human feelings. |
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| Keywords: | environmental sciences environmental monitoring electronic power transformer station low-frequency noise noise assessment |
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