Study of Characteristics of Vibration and Noise for Capacitor Installation in Converter Station
Shen Qi1, Ji Shengchang1, Ren Jie1, Wu Peng2, Wang Song3
1. State Key Laboratory of Electrical Insulation for Power Equipment Xi’an Jiaotong University Xi’an 710049 China2. Jiangsu Electric Power Research Institute Nanjing 210096 China 3. Guangzhou Bureau EHV Power Transmission Company of CSG Guangzhou 510663 China
Abstract：The filter capacitor installation is one of main noise sources in converter station. With the increasing of HVDC voltage and transmission power, more and more attention is paid to the noise of capacitor installation. In this paper, the capacitor installation in the 220kV filtering field of a converter station is taken as the research object to analyze the vibration characteristics of single capacitor and capacitor stack. Through measuring the noise level around the filtering field, the relationship between the noise and vibration is studied. The results show that the vibration of capacitor installation is generated by the fundamental and harmonic current. It has great difference among the vibration intensity on each surface of single capacitor, especially, the bottom surface has the greatest vibration amplitude. The frequency spectrum of noise has the same frequency components as the vibration. With the noise radiating pattern of filtering field, it can determine that the surrounding of capacitor installation and reactor has the greatest radiation quantity. Finally, a series of noise reduction measures are proposed from vibration reduction, sound insulation and the layout of filter component through the above research results.
沈琪, 汲胜昌, 任杰, 吴鹏, 王颂. 换流站电容器装置振动与噪声特性分析[J]. 电工技术学报, 2012, 27(7): 242-250.
Shen Qi, Ji Shengchang, Ren Jie, Wu Peng, Wang Song. Study of Characteristics of Vibration and Noise for Capacitor Installation in Converter Station. Transactions of China Electrotechnical Society, 2012, 27(7): 242-250.
[1] 汲胜昌, 寇小括, 李彦明. 换流站中电容器装置噪声水平计算方法的研究[J]. 中国电机工程学报, 2006, 26(3): 112-118. Ji Shengchang, Kou Xiaokuo, Li Yanming. Study on the on the calculation method of noise level for capacitor installation at converter station[J]. Proceedings of the CSEE, 2006, 26(3): 112-118. [2] 中国电力科学研究院. 三峡-常州±500kV直流输电工程可听噪声测试报告[R]. 2003. [3] 中国电力科学研究院. 三峡-广州±500kV直流输电工程可听噪声测试报告[R]. 2004. [4] 河南电力试验研究院. 灵宝换流站可听噪声测试报告[R]. 郑州, 2005. [5] CIGRE technical report. HVDC stations audible noise[R]. No. 202 W. G 14. 26, France, 2002. [6] Cox M D, Guan H H. Vibration and audible noise of capacitors subjected to non-sinusoidal waveforms[J]. IEEE Transactions on Power Delivery, 1994, 9(2): 856-862. [7] Smede J, Johansson C G, Winroth O, et al. Design of HVDC converter stations with respect to audible noise requirements[J]. IEEE Transactions on Power Delivery, 1995, 10(2): 747-758. [8] 国家电网建设有限公司, 哈尔滨工程大学. 换流站设备辐射噪声治理方法研究[R]. 2006. [9] 刘习军, 贾启芬. 工程振动理论与测试技术[M]. 北京: 高等教育出版社, 2006. [10] 曹涛, 汲胜昌, 吴鹏, 等. 基于振动信号的电容器噪声水平计算方法[J]. 电工技术学报, 2010, 25(6): 172-177. Cao Tao, Ji Shengchang, Wu Peng, et al. Calculation method of noise level for capacitor based on vibration signal[J]. Transactions of China Electrotechnical Society, 2010, 25(6): 172-177. [11] 金晖, 何洁, 钟晴红, 等. 频率计权的数字化实现[J]. 电子工程师, 2005, 31(1): 11-12.
2012, Vol. 27 
